CN104991319B - A kind of switching molding group for controlling and adjusting photosignal and be used for input equipment - Google Patents

A kind of switching molding group for controlling and adjusting photosignal and be used for input equipment Download PDF

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Publication number
CN104991319B
CN104991319B CN201510293788.4A CN201510293788A CN104991319B CN 104991319 B CN104991319 B CN 104991319B CN 201510293788 A CN201510293788 A CN 201510293788A CN 104991319 B CN104991319 B CN 104991319B
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light
smd
pipe
light guide
face
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CN104991319A (en
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郎欢标
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Dongguan Mayor Provides Industrial Co Ltd
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Dongguan Mayor Provides Industrial Co Ltd
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Priority to CN201510293788.4A priority Critical patent/CN104991319B/en
Priority to PCT/CN2015/083209 priority patent/WO2016192170A1/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Push-Button Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

The present invention relates to the photoelectricity light-guiding type switching molding groups that a kind of control and adjusting photosignal are used for input equipment, the photoelectricity light-guiding type switching molding group is managed using SMD IR and SMD PT pipe is as optical signal launch and reception device, and the accurate control of disconnection, conducting and the photosignal power of optoelectronic switch is realized using light pipe or optical fiber structure；Photoelectricity light-guiding type switching molding group, including mechanical features such as cross mechanical axis, spring and upper-lower casings with buckle lock structure；It further include SMD IR pipe, coupling unit, light pipe or optical fiber, light concentrating components, SMD PT pipe and the switch control sections such as the prism to link together with mechanical keys axis or optical gate；Photoelectricity light-guiding type switching molding group, other than it can realize disconnection and the access of optoelectronic switch by the relative position of moving switch control unit and light pipe or optical fiber, also realize photosignal by weak to strong or by strong extremely weak Linear Control, it allows game player to experience speed and strength in game control, is very suitable to game player's use.

Description

A kind of switching molding group for controlling and adjusting photosignal and be used for input equipment
Technical field
The present invention relates to photoelectricity light-guiding type mechanical axis keyboard switch and a kind of photoelectricity light-guiding type game mouse device key switch, More particularly to a kind of control and adjusting photosignal are used for the photoelectricity light-guiding type switching molding group of input equipment.
Background technique
Photoelectric key board is technology emerging in recent years, it uses completely new optoelectronic induction identification technology, by traditional gold Belong to contact flat spring and replace with optical sensor component, improvement conventional contact mechanical switch is prone to wear some problems of damage.Its Using optical principle and photoelectric coupling technology, the access of light is formed between light-emitting component and photoelectric sensor, switch block exists It carries out triggering photoelectric sensor in the cutting and closing course of optical path, changes the low and high level signal that circuit resistance value completes circuit Control, to realize the conversion of photoelectricity, and then disconnection and the access of control switch.
Publication No. CN2069165U proposes a kind of photoelectric key board of optical fiber type, by key 1, cover board 2, support plate 3, Filling elastic material 4, optical fiber 5, bottom plate 6, light source 8 form, such as Fig. 1.The most simple shape of key can be made into T font, under Portion is inserted in be formed by gap by the guide plate in support plate 3, each key corresponds to such a gap, and optical fiber is being propped up Fagging lower surface arrangement realizes being switched on or off for the optic fibre light path below key by the up and down motion of T shape key, makes vertical and horizontal Corresponding change occurs for the light-sensitive element of 2 optical fiber connectors, to export the address code of respective keys, after hand leaves key, key Elastic filling material oneself in support plate resets.The photoelectric key board of the optical fiber type simple, small in size, weight with structure Gently, the advantages that noise is small, anti-electromagnetic interference.
But the PKB photoelectric keyboard of current existing fiber formula has the following disadvantages: the launching fiber of 1. support plate, 3 arranged beneath The condenser system of light collimation and collector lens is not provided with reception optical fiber, since the light emitting angle of fiber end face is bigger (multimode fibre NA under normal circumstances, i.e., the range of numerical aperture is generally between 0.18-0.23), and launching fiber and connect The two sides that optical fiber is located at T font key axis are received, the gap of a key axis size is at least spaced between transmitting terminal and receiving end, Stop or be connected optical path by moving up and down for key axis, since the thickness of key axis generally at least needs 1 millimeter or more, in this way The coupling efficiency for resulting in launching fiber to reception optical fiber is relatively low, the light for only having sub-fraction to come out from launching fiber Reception optical fiber can be just coupled into.2. key determines in such a way that 2 or more are cascaded, and through the addressing of XY Which key is pressed, and can be led to a problem in this way: due to the launching fiber below each key and between reception optical fiber Optical coupling loss is bigger, connects several key groups in upper same optical path simultaneously in length and breadth, and this structure can allow close to route That push button signalling of tail end can be relatively weak, and the keystroke sensitivity of route tail end is caused to reduce, and is easy to appear accidentally touch Phenomenon.3. being easy aging after elasticity filling ability material over time use, lead to elastic failure, key rebound is sluggish astringent, causes The sensitivity decrease of key.4. elasticity filling ability material to bounce speed slower relative to mechanical spring, there is no drop sense, time Elastic force is smaller, switching slow motion, insensitive, feel is bad, is not suitable for computer game keyboard.
Summary of the invention
Based on the above issues, the present invention provides a kind of switching molding group for controlling and adjusting photosignal and be used for input equipment, The disconnection of optoelectronic switch and the accurate control of access, and the power to photosignal are realized using light pipe or optical fiber structure It is effectively controlled and adjusts.
According to an aspect of the present invention, a kind of switching molding for controlling and adjusting photosignal and be used for input equipment is provided Group, which is characterized in that the switching molding group is managed using SMD IR and SMDPT pipe is as optical signal launch and reception device, is utilized The structure of light pipe or optical fiber combination switch optical control unit come realize the optical path of optoelectronic switch disconnect, conducting and photoelectricity The accurate control of signal strength or weakness, the photoelectricity light-guiding type switching molding group, switch optical control unit are prism, free form surface Lens and optical gate, link together with axle key, the photoelectricity light-guiding type switching molding group, in addition to that can pass through moving switch Except the relative position of control unit and light pipe or optical fiber realizes that the optical path of optoelectronic switch is disconnected and is connected, light can also be realized Electric signal is by weak to strong or controlled to weak linear relationship by strong.
Wherein, the prism with free form surface that the switching molding group includes SMD IR pipe (17), links together with key axis (141), light guide (151) and SMD PT pipe (18) composition.
Wherein, the free-form surface lens are the aspherical or polynomial surface of inclined shaft, for that will manage (17) from SMD IR The light of sending converges on the micro-structure surface on the right of prism (141-1).
Wherein, the micro-structure surface (141-1) of the prism is that zigzag is totally reflected Fresnel surface, or for being all-trans It penetrates or the microprism array face of part reflecting effect, microlens array or for balzed grating, for will refractive curvature from below Enter incoming light, carrying out entirely or partially reflection makes light ray bending and collimate to export from the end face of prism left side.
Wherein, the lower position of prism (141) left side end face has the light barrier (141-2) of a piece of black, with band There is free curved surface prism (141) to combine, and links together with cross key axis (14).
Wherein, when button pressed, cross key axis moves down together in conjunction with free curved surface prism (141), moves when pushing Some position is moved, so that the right side of free curved surface prism (141) left side output end face and the light guide (151) being located on the left of it When side input end face a part is aligned, the light issued from SMD IR pipe (17), by inclining below free curved surface prism (141) After oblique refractive curvature refraction and deflection, converge on the micro-structure surface on the right of prism (141-1), micro-structure surface (141-1) will enter incoming light, carry out total reflection turnover and collimate the end face output on the left of prism.From free form surface rib Light a part of mirror (141) output is coupled in the light guide (151) in left side, by the deflection and conduction of light guide (151), It is assembled using Fresnel surface (151-1) below, on the SMD PT pipe (18) of last convergence of rays to lower section, optical path Realize conducting；
When key continues to push, free curved surface prism (141) left side output end face and the light guide being located on the left of it (151) part of the right input end face alignment is more and more, and the light that SMD PT manages convergence in (18) is more and more, generates Current signal it is just increasingly stronger；
When cross key axis presses to 4~4.3mm, free curved surface prism (141) left side output end face be located at its left side The right input end face of light guide (151) be aligned completely, at this moment it is most to manage the light assembled on (18) by SMD PT, therefore it is produced Raw current signal reaches strongest state；
When switch rebound upwards, the light barrier (141-2) below the output end face of free curved surface prism (141) left side starts The light of directive light guide (151) is blocked, it is more and more weaker that SMD PT manages the photosignal generated in (18), until completely cutting through light Electric signal.
Wherein, when button pressed is to 2mm, start to trigger SMD PT and manage and reduce this SMD PT and manage the pole C and E on (18) Resistance value between pole realizes the conducting between the pole C and the pole E；Pushing range from 2mm to 4.30mm, electric current is according to depressed position Increase rising in a linear relationship, when button pressed to the position 4mm~4.30mm, current signal reaches most strong.
Wherein, the light barrier (141-2) below the output end face of free curved surface prism (141) left side, with free song Face prism (141) is combined, and is ferrous metal piece or black film；The free curved surface prism (141), material Material is transparent optical plastics, and the cross key axis (14) therewith to link is perspex resin or is various colors Plastic resin, cross key axis (14) and free curved surface prism (141) use and merge the two with single perspex tree Rouge injection molding, or use extra quality integrated injection molding.
Wherein, the light guide is light pipe or plastic optical fiber, and diameter is between 0.5mm~3mm.
Wherein, the optical system of described another part is centering type keycap character lighting system, uses SMD LED (19) structure of centering type light guide (153) is combined, which by SMD LED (19) and leads The position of light part (153) is arranged to the center deviation with keycap character, and light guide (153) bottom allows SMD LED close to LED (19) light coupling can according to need random bending into light guide (153), light guide (153), according to the institute for pressing bond space The range of permission is arranged, and the upper end faces toward the direction of keycap character center, evenly illuminates keycap character, the key Cap character is located on the keycap above cross key axis (14), the keycap, can be the side on common computor-keyboard Shape or rectangular keycap, or be mouse left and right press key shell.
Wherein, another centering type keycap character lighting system, uses SMD LED (19) to lead in conjunction with centering type The position of SMD LED (19) and light guide (253) are arranged to lead with the center deviation of keycap character by the structure of light beam (253) Light beam (253) bottom is arranged to the Fresnel curved surface (253-1) with spotlight effect, light-guiding pillar (253) close to the part of LED Top is arranged to the light-emitting surface (253-2) with certain tilt angle close to the end face of keycap character, i.e. light-emitting surface (253-2) is This special light guide is arranged above SMD LED for inclined plane or cambered surface, can be inclined in LED and keycap character center Realize that keycap character is symmetrically illuminated from the state of；Implementation principle is the Fresnel curved surface by light-guiding pillar (253) bottom (253-1) light of SMD LED is carried out optically focused and part collimates, and light passes through the optics cylinder multiple reflections of light-guiding pillar (253) Afterwards, then via the light-emitting surface (253-2) with certain tilt angle on light guide it reflects away, due to light-emitting surface (253-2) Using the plane or cambered surface horizontal by certain tilt angle, by the light refraction of outgoing to eccentric position opposite direction Region reaches what keycap character symmetrically illuminated to realize the Uniform Illumination of LED upper area and its opposite area of space Effect.
Wherein, the caustic surface (341-3) below the free form surface light-collecting prism (341) above right side SMD IR pipe (17) is With 1 or more zigzag inclined shaft Fresnel surface, the inclined shaft Fresnel surface, optical axis CX, toward micro-structure surface The direction of (341-1) tilts；The inclined shaft Fresnel surface (341-3) arrives the convergence of rays that SMD IR pipe (17) issues On micro-structure surface (341-1)；It is zigzag total reflection Fresnel surface to the micro-structure surface (341-1), or is tool There are the microprism array face of entirely or partially reflecting effect, microlens array or for balzed grating,；It acts as will be under Square refractive curvature enters incoming light, is transferred and collimates the output of the end face on the left of prism；Under prism left end face Orientation is equipped with the light barrier (141-2) of a piece of black, combines with free curved surface prism (341), and with cross key axis (14) it links together.
Wherein, the leaded light component (151) being located above left side SMD PT pipe (18), can also be split as individual leaded light Pipe or optical fiber (451) are formed in conjunction with the collector lens (452) with light-focusing function；The collector lens (452), is flat Convex lens is convex-convex lens, will be in the SMD PT pipe (18) of the convergence of rays in light guide (451) to lower section.
Wherein, the leaded light component (151) being located above left side SMD PT pipe (18) is free curved surface prism 551；Described Free curved surface prism (551) has an off-axis, inclined freely curved face total reflection face (551-1), is off axis paraboloid mirror, two Secondary curved surface or be polynomial surface, incoming convergence of rays will be entered to lower section from the free curved surface prism on right side (141) SMD PT pipe (18) in.
Wherein, the SMD PT pipe (18) in the left side can be rotated by 90 ° is placed on side, the optically focused part in left side vertically Directly it is a collector lens (651), can is convex lens, or be Fresnel Lenses.
Wherein, key switch control includes collector lens, collimation lens, the light pipe positioned at optical gate two sides or optical fiber and leads Light pipe optical fiber (753), the optical gate that links together with key axis, and positioned at optical gate lead to the hole site is on one side plane, another side For the refracting prisms on inclined-plane.
Wherein, key switch control includes collector lens (954), collimation lens (951), is located at optical gate (941) two sides Light pipe or optical fiber (952,953), the optical gate (941) to link together with key axis, and the refraction positioned at optical gate lead to the hole site Prism (942).
Wherein, key switch control includes collector lens (1051,1151), collimation lens (1054,1055), is located at optical gate The light pipe (1052,1053) of (1041,1141) two sides optical fiber (1152,1154), the optical gate that links together with key axis (1041,1141), and positioned at optical gate lead to the hole site be on one side plane, another side be zigzag straight grain Fresnel Lenses (1042、1142)。
Wherein, key switch control can by collector lens (1254), collimation lens (1251), be located at optical gate (1241) two The light pipe or optical fiber (1252,1253) of side, the optical gate (1241) to link together with key axis, and positioned at optical gate lead to the hole site Both sides are zigzag straight grain Fresnel Lenses (1242) Lai Shixian.
Wherein, key switch control can with collector lens (1354,1454), collimation lens (1351,1451), be located at optical gate The light pipe (1352,1353) or optical fiber (1452,1453) of (1341,1441) two sides, link together with key axis, have one Through-hole (1342,1442) and one optical gate (1341,1441) Lai Shixian；The light guide of the optical gate two sides can be same Axis setting, may be non-coaxial setting.
Wherein, key switch control can by collector lens (1551), be located at optical gate (1541) two sides light pipe or Optical fiber (1552,1553), 2 secondary reflection oblique cubic total reflection prism (1554) and have a through-hole (1542) and The combination of one optical gate (1541) is realized.
Wherein, key switch control can have a porosity characteristics by free curved surface prism (1651), setting (1642) optical gate (1641) and light guide (1652) Lai Shixian positioned at the optical gate other side.
Wherein, key switch control can have one to lead to by collector lens (1754), collimation lens (1751), setting The optical gate (1741) of hole characteristic (1742) and it is located at optical gate two sides there are two of light reflectance signature (1752-1,1753-1) Mirror tunnel (1752,1753) Lai Shixian.
Wherein, key switch control can have a through-hole spy by collector lens or collimation lens (1851), setting The optical gate (1841) of sign (1842), the SMD PT pipe (18) on the left of it can be rotated by 90 ° is placed on side vertically, and left side is gathered Light part is directly a collector lens (1853), can be convex lens, or be Fresnel Lenses, and be located at the optical gate right side Side has light reflectance signature (1852-1) mirror tunnel (1852) Lai Shixian.
Wherein, the mirror tunnel (1752,1753,1852), can for light reflectance signature mirror tunnel, It can be the optical prism with light total reflection feature.
Wherein, key switch control can pass through the 1/2 period self-focusing of the optic communication positioned at optical gate (1941) two sides The multimode fibre (1952,1953) of lens (1951,1954) and optic communication and have a lenticular lens features (1942) Optical gate realize.
Wherein, key switch control can pass through the autohemagglutination in 1/2 period of the optic communication positioned at optical gate (2041) two sides Focus lens (2051,2056) and the multimode fibre (2052,2055) of optic communication, the self-focusing lens in 1/4 period (2053, 2054) it and with the optical gate with a porosity characteristics (2042) of key axis linkage realizes.
Wherein, key switch control can according to need sets the state for controlling and adjusting photosignal in turn completely It sets, i.e., when key continues to push, the light assembled on SMD PT pipe (18) is fewer and fewer, and the current signal of generation is increasingly It is weak；When button pressed is to about 4.30mm, optical path is fully disconnected, and SMD PT pipe (18) does not receive light, the electricity generated Flowing signal is zero；When switch rebound upwards, optical path is begun to turn on, and SMD PT manages the photosignal generated in (18) increasingly By force, when spring loosens completely, photosignal reaches strongest state；The change procedure of photosignal be and button pressed stroke Proportional is changed to weak linear relationship variation and backhaul by weak to strong linear relationship by strong.
Wherein, key switch control can by be located at optical gate two sides light pipe (2151,2352) or optical fiber (2152, 2251) optical gate (2141), to link together with key axis, what it is positioned at optical gate lead to the hole site be on one side plane, another side is inclined-plane Refracting prisms (2142) be on one side plane, another side are zigzag Fresnel Lenses (2242) Lai Shixian；It controls and adjusts The state of section photosignal is that, when key continues to push, the current signal of generation is more and more weaker, until being fully disconnected, and is worked as When key loosens, the current signal of generation is connected, and increasingly stronger.
Wherein, key switch control can pass through the light pipe (2352) or optical fiber (2451) and key positioned at optical gate side Optical gate (2341,2441) that axis links together is rotated by 90 ° the SMD PT pipe (18) and Fresnel collimation lens placed vertically (2351,2452) Lai Shixian；Its state for controlling and adjusting photosignal is, when key continues to push, the electric current letter of generation It is number more and more weaker, until be fully disconnected, and when key loosens, the current signal of generation is connected, and increasingly stronger.
Wherein, key switch control can by freely curved face total reflection prism (2551), the light that links together with key axis Lock (2541), the light pipe of the optical gate other side or optical fiber (2552) Lai Shixian；It is controlled and state of adjusting photosignal is, when When key continues to push, the current signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the electric current of generation Signal conduction, and it is increasingly stronger.
Wherein, key switch control can be by collimating Fresnel Lenses (2651,2654), having light reflection mirror feature Two mirror tunnels (2652,2653) of (2652-1,2653-1), optical gate (2641) Lai Shixian to link together with key axis； Its state for controlling and adjusting photosignal is that, when key continues to push, the current signal of generation is more and more weaker, until completely It disconnects, and when key loosens, the current signal of generation is connected, and increasingly stronger.
Wherein, key switch control can have light reflection mirror feature by collimation Fresnel Lenses (2751), unilateral side The mirror tunnel (2752) of (2752-1), is rotated by 90 ° the SMD placed vertically at the optical gate (2741) to link together with key axis PT manages (18) and Fresnel collimation lens (2753) Lai Shixian；Its control and adjust photosignal state be, when key after When continuous pushing, the current signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the current signal of generation is led It is logical and increasingly stronger.
Wherein, the position of the mobile optical path triggering and conducting of the pushing is greater than between 0.10 to less than 10.00mm Any size；It is pressed between 2.0~4.3mm of distance range under the cross key axis, current strength can be according to depressed position Increase rising in a linear relationship, realize in this distance range through this mobile cross key axis by photosignal by weak to strong and By strong to weak control, this distance range is 2.0~4.3mm, this distance range may be set to be greater than 0.20 to less than Any size between 15mm.
Wherein, the position that the optical path is fully disconnected is 4.30mm, this can also be set greater than 0.20 according to demand To less than any size between 15.00mm.
Control and adjusting photosignal of the present invention is used for the switching molding group of input equipment, by photoelectric sense technology It combines with echanical shaft system, the disconnection of optoelectronic switch and the accurate control of access is realized using light pipe or optical fiber structure System, and the power of photosignal is effectively controlled and is adjusted, it has the following advantages that and innovative: 1. present invention Core technology is (surface-pasted using SMD IR pipe (surface-pasted infrared diode or laser diode) and SMD PT pipe Photoelectric receiving tube) it is used as transmitting and reception device to realize disconnection, access and the photoelectricity of optoelectronic switch in conjunction with light pipe or optical fiber The accurate control of signal strength or weakness.2. disconnection and access of the product of the present invention switching molding group using pure photoelectric device control switch, nothing Need mechanical hard contact, will not be influenced by contact wear and deterioration by oxidation, long service life, can meet high-frequency and it is long when Between application.3. product of the present invention switching molding group uses the precision optics prism to link together with mechanical axis or optical gate (light-blocking Piece) structure, accurate switch triggering position control may be implemented, the trigger position control precision of existing purely mechanic axle key disk is +/- 0.40~0.60mm, the technology of the present invention can effectively realize the switch triggering position control of +/- 0.10mm, than existing pure machine The trigger position precision of tool axle key disk is 4~6 times high, realizes keyboard sense of touch quality stability；4. photoelectricity light-guiding type mechanical axis keyboard After using long-time, handfeel of keys is varied less, and traditional mechanical keyboard is then unable to reach；5. this photoelectricity light-guiding type Mechanical axis keyboard, when its key axis push certain distance when, with key axis linkage switch control section (prism or light barrier) with Light pipe or optical fiber are coupled, and switching molding group will be triggered and be connected, and continuing pressure switches component may be implemented photoelectricity The increasingly stronger function of signal, and when switch rebound upwards, photosignal is more and more weaker, until cutting photosignal, photoelectricity The power of the signal proportionate relationship linear with the stroke pushed, is applied to gamepad and trip for the switching molding group of this technology Play Genius mouse, can allow player to embody the speed in game and strength (such as racing car Throttle Opening Control, the power of boxing when playing game Measure, the control of the various movements of game), feel to be really true to life, therefore be very suitable to game player's use；6. using high-quality piano wire Spring, anti-fatigue performance is more preferable, screen resilience is big, switching movement faster, sensitiveer, feeling is better；7. there is no machinery to connect Electric signal jitter problem when touching, odds and ends news, the zero-lag of switch motion time, operates sensitiveer, quick and accurate.
Detailed description of the invention
The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, and attached drawing is schematically without that should manage Solution is carries out any restrictions to the present invention, in the accompanying drawings:
Fig. 1 shows a kind of structural schematic diagram of existing PKB photoelectric keyboard.
Fig. 2 shows the explosions of the isometric side of the photoelectricity light-guiding type mechanical axis keyboard switch mould group of the first embodiment of the present invention Figure.
What Fig. 3 showed the photoelectricity light-guiding type mechanical axis keyboard switch mould group of the first embodiment of the present invention faces explosion Scheme
Fig. 4 shows the photoelectricity light-guiding type mechanical axis keyboard switch mould group of the first embodiment of the present invention along the direction A-A Sectional view.
The switch control that Fig. 5 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the first embodiment of the present invention is former Reason.
Fig. 6 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the first embodiment of the present invention, signal strength or weakness with press The relation curve of key down stroke.
Fig. 7 shows the photoelectricity light-guiding type mechanical axis keyboard switch mould group of the first embodiment of the present invention along the direction O-B Sectional view.
Fig. 8 shows the guide-lighting principle of the centering type keycap character lighting system of the first embodiment of the present invention
Fig. 9 shows the guide-lighting principle of the centering type keycap character lighting system of the second embodiment of the present invention
The switch control that Figure 10 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the third embodiment of the present invention is former Reason.
The switch control that Figure 11 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the fourth embodiment of the present invention is former Reason.
The switch control that Figure 12 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the fifth embodiment of the present invention is former Reason.
The switch control that Figure 13 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the sixth embodiment of the present invention is former Reason.
Figure 14 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 7th and eight embodiments of the invention Principle processed.
The switch control that Figure 15 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the ninth embodiment of the present invention is former Reason.
Figure 16 show the of the invention tenth and 11 embodiment photoelectricity light-guiding type mechanical axis key switch mould group switch Control principle.
Figure 17 shows the switch controls of the photoelectricity light-guiding type mechanical axis key switch mould group of the 12nd embodiment of the present invention Principle.
Figure 18 shows opening for the photoelectricity light-guiding type mechanical axis key switch mould group of the 13rd and 14 embodiments of the invention Close control principle.
Figure 19 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 15th embodiment of the present invention Principle.
Figure 20 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 16th embodiment of the present invention Principle.
Figure 21 shows opening for the photoelectricity light-guiding type mechanical axis key switch mould group of the 17th and 18 embodiments of the invention Close control principle.
Figure 22 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 19th embodiment of the present invention Principle.
Figure 23 shows the feature that the light of self-focusing lens is propagated.
Figure 24 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 20th embodiment of the present invention Principle.
Figure 25 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the 21st and 22 embodiments of the invention Switch control principle.
Figure 26 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the 23rd and 24 embodiments of the invention Switch control principle.
Figure 27 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 25th embodiment of the present invention Principle processed.
Figure 28 shows the switch control of the photoelectricity light-guiding type mechanical axis key switch mould group of the 26th embodiment of the present invention Principle processed.
Figure 29 shows the photoelectricity light-guiding type mechanical axis key switch mould group of the 27th and 28 embodiments of the invention Switch control principle.
Specific embodiment
Below in conjunction with attached drawing, embodiments of the present invention is described in detail.
Photoelectricity light-guiding type mechanical axis keyboard switch according to the present invention, the isometric side explosive view of specific embodiment 1, Face explosive view and along the direction A-A sectional view respectively as shown in Fig. 2, Fig. 3 and Fig. 4.It is by upper housing 12, spring 13, cross key axis 14, together with key axis linkage, the disconnection for controlling optoelectronic switch and access free curved surface prism 141, Light guide 151, the centering type light guide 153 for illuminated key caps character, lower case 16, SMD IR pipe 17 are (surface-pasted red Outer diode or laser diode), (surface-pasted photoelectric receiving tube, the present invention are preferably infrared photosensitive to SMD PT pipe 18 Diode), pcb board (printed circuit board) composition of SMD LED (surface-pasted light emitting diode) and bottom.In Fig. 4 Dash area is the silica gel of filling in SMD PT pipe 18.
Specific embodiment 1 of the present invention, optical system are divided into 2 parts, a part for for effectively controlling and Adjust the light-conducting system of the key switch of photosignal comprising SMD IR pipe 17, the free form surface rib to link together with key axis Mirror 141, light guide 151 and SMD PT pipe 18 form.The free curved surface prism 141, below close to SMD IR pipe 17 Position is an inclined refractive curvature, as shown in figure 4, it is the aspherical or polynomial surface of inclined shaft, it acts as will be from SMD IR pipe 17 issue light converge on the micro-structure surface 141-1 on the right of prism, the micro-structure surface 141-1 its be sawtooth Shape is totally reflected Fresnel surface, perhaps for the total reflection microprism array face of effect, microlens array or to glare Grid.It acts as will incoming light be entered by refractive curvature from below, carries out reflection turnover and collimate from the end face on the prism left side Output.The lower position of prism left side end face has the light barrier 141-2 of a piece of black, combines with free curved surface prism 141 Together, and with cross key axis 14 it links together.
Described is used to the effectively light-conducting system of control and the key switch for adjusting photosignal, and switch control principle is such as Shown in Fig. 5, when button pressed, cross key axis moves down together in conjunction with free curved surface prism 141, when being moved to some position It sets, so that the right input end face a part of 141 left side output end face of free curved surface prism and the light guide 151 being located on the left of it (the present embodiment is set as pushing the position 2mm), the light issued from SMD IR pipe 17, by free curved surface prism 141 when alignment After the refractive curvature of inclined downward is reflected and deflected, converge on the micro-structure surface 141-1 on the right of prism, micro-structure Surface 141-1 will enter incoming light, and being transferred and being collimated exports from the end face on the prism left side.From free curved surface prism 141 left sides end face output light a part be coupled in the light guide 151 on the left of key axis, by light guide 151 deflection and Conduction, is assembled using Fresnel surface 151-1 below, on the SMD PT pipe 18 of last convergence of rays to lower section, when SMD PT pipe 18 receives optical signal, and triggering SMD PT manages and reduce the pole C (collector) on this SMD PT pipe 18 and the pole E (hair Emitter-base bandgap grading) between resistance value, realize the pole C (collector) and the pole E (emitter) between conducting.When key continues to push, freely The part that 141 left side output end face of curved surface prism is aligned with the right input end face for the light guide 151 being located on the left of it is increasingly More, the light assembled in SMD PT pipe 18 is also more and more therewith, as the increase of incident intensity makes on this SMD PT pipe 18 The pole C (collector) it is smaller and smaller to the resistance value between the pole E (emitter), the electric current generated on this SMD PT pipe 18 is increasingly Greatly.When button pressed is to about 4~4.3mm, 141 left side output end face of free curved surface prism and the light guide being located on the left of it 151 the right input end face is aligned completely, and the light at this moment assembled in SMD PT pipe 18 is most, and the current signal generated also reaches To strongest state.And the light barrier 141-2 when switch rebound upwards, below 141 left side output end face of free curved surface prism Start to block the light of directive light guide 151, the photosignal generated in SMD PT pipe 18 is more and more weaker, on this SMD PT pipe 18 The pole C (collector) it is also increasing to the resistance value between the pole E (emitter), until completely cutting through conducting.This process is realized With button pressed stroke in the photosignal of ratio by control weak to strong and by strong extremely weak linear change, by this skill The switching molding group of art be applied to gamepad and game mouse device, can allow player controlled when playing game the speed in game and Strength (such as racing car Throttle Opening Control, the strength of boxing, the various movements of game control), therefore be very suitable to game player use. Dash area is the silica gel of filling in SMD PT pipe 18 in Fig. 5.
Actual measurement relation curve such as Fig. 6 institute of the current signal power and button pressed stroke that are generated on this SMD PT pipe 18 Show, it can be seen that starting to generate current signal, from 2mm to 4mm, electric current on SMD PT pipe 18 when button pressed is to 2mm Signal substantially linearly rises, and when button pressed is to 4mm~4.3mm, current signal reaches most strong.When button pressed distance More than the present embodiment setting the position 4mm~4.3mm when, since button pressed distance crosses defined position, result in free song 141 left side output end face of face prism and the right input end face for the light guide 151 being located on the left of it generate partial transposition, so meeting The current signal on SMD PT pipe 18 is set to land therewith.
Light barrier 141-2 below 141 left side output end face of free curved surface prism, with free curved surface prism 141 combine, and are ferrous metal piece or black plastic piece.The free curved surface prism 141, material are transparent Optical plastic, and the cross key axis 14 therewith to link, be perspex or be various colors plastics, with free song Face prism 141 is using extra quality integrated injection molding or using the forming method of single plastic-injection.
The light guide 151 is the light pipe of injection molding, may be plastic optical fiber, diameter is between 1mm Between~5mm, the present invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to by bond space Permitted range be arranged.So-called plastic optical fiber, by high transparency polymer such as polystyrene (PS), poly- methyl-prop E pioic acid methyl ester (PMMA), polycarbonate (PC) are used as core material, the type optical fiber as cortical material such as PMMA, fluoroplastics (optical fiber), since its is light, soft, damage-resistant (vibration and bending), and have excellent tensile strength, durability and account for With the small feature in space, these advantages make successful application of the plastic optical fiber in mechano-electronic particularly important.It is relatively large in diameter, Generally 1mm or more, coupling connecting loss are lower.The SMD IR pipe 17 is surface-pasted infrared diode, or It is surface-pasted infra-red laser diode, its wavelength of the invention is preferably 870nm, the part of luminescence chip surrounding shadow in figure For the silica gel of filling.
The photoelectricity light-guiding type mechanical axis keyboard switch mould group, the optical system of another part are centering type keycap character Lighting system uses SMD LED 19 (paster type light emitting type can be the paster LED of red, green, blue and white various colors) In conjunction with the structure of centering type light guide 153, sectional view is as shown in fig. 7, its guide-lighting principle is as shown in Figure 8.The centering type keycap Character lighting system is designed by the Position Design of SMD LED 19 at the center deviation with keycap character by special light, As in this specific embodiment by 153 bottom of light guide close to LED, make light coupling entering light as much as possible fine, light guide 153 It can according to need random bending, be arranged according to by the permitted range of bond space, the upper end faces toward keycap character The direction at center, to evenly illuminate keycap character.The keycap and its character portrayed above, are located at cross key axis 14 Top, be not drawn into here, the keycap, can be that rectangular keycap of Computer key, or be mouse right and left key That irregular plastic curved surface shell, can according to need setting, shape is unrestricted.
The light guide 153 can be light pipe or be plastic optical fiber, and diameter is between 1mm~5mm, this hair Bright preferably light guide member diameter is 1.5mm.It can according to need random bending, according to the permitted range for pressing bond space It is arranged.
Specific embodiment 2:
Photoelectricity light-guiding type mechanical axis keyboard switch mould group according to the present invention, specific embodiment 2 are that it is another Centering type keycap character lighting system, using SMD LED19, (paster type light emitting type, can be various for red, green, blue and white The LED of color) in conjunction with the structure of centering type light-guiding pillar 253, by the Position Design of SMD LED19 at inclined with the center of keycap character From, designed by special light, as in this specific embodiment by 253 bottom of light-guiding pillar close to the part of LED, be arranged to have The Fresnel curved surface 253-1 of spotlight effect, 253 top of light-guiding pillar are arranged to have certain inclination angle close to the end face of keycap character The light-emitting surface 253-2 of degree, i.e. light-emitting surface 253-2 are inclined plane or cambered surface, this special light guide is arranged in SMD LED Top can realize that keycap character symmetrically illuminates in the state that LED deviates with keycap character center.Implementation principle is logical The light of SMD LED is carried out optically focused to the Fresnel curved surface 253-1 of 253 bottom of over-light-transferring pole and part collimates, and light passes through leaded light After the optics cylinder multiple reflections of column 253, then via above light guide there is the light-emitting surface 253-2 of certain tilt angle to reflect It goes, since light-emitting surface 253-2 uses the plane or cambered surface horizontal by certain tilt angle, by the light refraction of outgoing To the region of eccentric position opposite direction, to realize the Uniform Illumination of the keycap area above LED and its to space of planes, reach key The effect that cap character symmetrically illuminates.
Specific embodiment 3:
The light-conducting system of the key switch according to the present invention for being used to effectively control and adjusting photosignal, it is specific real The switch control principle for applying scheme 3 is as shown in Figure 10.The light guide 151 of its 18 top of left side SMD PT pipe, with specific embodiment party Identical, the caustic surface of 341 lower section of free form surface light-collecting prism of SMD IR pipe 17 top in right side unlike the present embodiment of case 1 341-3 has been changed to have 1 or more zigzag inclined shaft Fresnel surface, the inclined shaft Fresnel surface, and optical axis CX is past The direction of micro-structure surface 341-1 tilts.The inclined shaft Fresnel surface 341-3, the light meeting that SMD IR pipe 17 is issued Gather on micro-structure surface 341-1.The micro-structure surface 341-1 is totally reflected Fresnel surface for zigzag, or is tool There are microprism array face, the microlens array of total reflection effect, or is balzed grating,.It acts as will inclined shaft phenanthrene alunite from below Your face 341-3 enters incoming light, carries out total reflection turnover and collimate to export from the end face on the prism left side.Prism left side end face Lower position have the light barrier 141-2 of a piece of black, combined with free curved surface prism 341, and with cross key axis 14 link together.Dash area is the silica gel of filling in SMD IR pipe 17 in Figure 10.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with free curved surface prism 341, when It is moved to some position, so that the right of 341 left side output end face of free curved surface prism and the light guide 151 being located on the left of it (the present embodiment is set as pushing the position 2mm), the light issued from SMD IR pipe 17, by certainly when input end face a part is aligned After the inclined shaft Fresnel surface 341-3 refraction and deflection of 341 lower section of curved surface prism, the micro-structure surface on the right of prism is converged to On 341-1, micro-structure surface 341-1 will enter incoming light, carry out reflection turnover and collimate defeated from the end face on the prism left side Out.The light a part exported from free curved surface prism 341 is coupled in the light guide 151 in left side, by the inclined of light guide 151 Turn and conduct, is assembled using Fresnel surface 151-1 below, the SMD PT pipe 18 of last convergence of rays to lower section On, when SMD PT pipe 18 receives optical signal, triggering SMD PT is managed and is reduced the pole C (collector) on this SMD PT pipe 18 and E Resistance value between pole (emitter) realizes the conducting between the pole C (collector) and the pole E (emitter).When key continues to push, It gets over the part that 341 left side output end face of free curved surface prism is aligned with the right input end face for the light guide 151 being located on the left of it Come more, the light assembled on SMD PT pipe 18 is more and more, as the increase of incident intensity makes the C on this SMD PT pipe 18 Pole (collector) is smaller and smaller to the resistance value between the pole E (emitter), and the electric current generated on this SMD PT pipe 18 is increasing.When When button pressed is to about 4~4.3mm, 341 left side output end face of free curved surface prism and the light guide 151 that is located on the left of it The right input end face is aligned completely, and the light at this moment assembled on SMD PT pipe 18 is most, and the current signal generated reaches most strong State.And when switch rebound upwards, the light barrier 141-2 below 341 left side output end face of free curved surface prism starts to keep off The firmly light of directive light guide 151, the photosignal generated in SMD PT pipe 18 is more and more weaker, the pole C on this SMD PT pipe 18 Resistance value between (collector) to the pole E (emitter) is also increasing, until completely cutting through conducting.This process, realize with Button pressed stroke is in the photosignal of ratio by control weak to strong and by strong extremely weak linear change, by this technology Switching molding group is applied to gamepad and game mouse device, and player can be allowed to control speed and strength in game when playing game (such as racing car Throttle Opening Control, the strength of boxing, the various movements of game control), therefore be very suitable to game player use.
Specific embodiment 4:
The light-conducting system of the key switch according to the present invention for being used to effectively control and adjusting photosignal, it is specific real The switch control principle for applying scheme 4 is as shown in figure 11.The convergence of its 17 top of right side SMD IR pipe and turnover device, using with tool The identical free curved surface prism 141 of body embodiment 1, it is that 18 top of left side SMD PT pipe is original unlike the present embodiment Caustic surface 151-1 is changed to the collector lens 452 isolated with light guide 451.The collector lens 452, be plano-convex lens or Person is convex-convex lens, will be in the SMD PT pipe 18 of the convergence of rays in light guide 451 to lower section.In Figure 11 in SMD IR pipe 17 Dash area is the silica gel of filling.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with free curved surface prism 141, when It is moved to some position, so that the right of 141 left side output end face of free curved surface prism and the light guide 451 being located on the left of it (the present embodiment is set as pushing the position 2mm), the light issued from SMD IR pipe 17, by certainly when input end face a part is aligned After the refraction of inclined refractive curvature and deflection of 141 lower section of curved surface prism, the micro-structure surface on the right of prism is converged to On 141-1, micro-structure surface 141-1 will enter incoming light, carry out reflection turnover and collimate defeated from the end face on the prism left side Out.The light a part exported from free curved surface prism 141 is coupled in the light guide 451 in left side, by the inclined of light guide 451 Turn and conduct, is assembled using collector lens 452 below, on the SMD PT pipe 18 of last convergence of rays to lower section, When SMD PT pipe 18 receives optical signal, triggering SMD PT is managed and is reduced the pole C (collector) on this SMD PT pipe 18 and the pole E Resistance value between (emitter) realizes the conducting between the pole C (collector) and the pole E (emitter).When key continues to push, from By 141 left side output end face of curved surface prism and the part that is aligned of the right input end face for the light guide 451 being located on the left of it more next More, the light assembled on SMD PT pipe 18 is more and more, as the increase of incident intensity makes the pole C on this SMD PT pipe 18 Resistance value between (collector) to the pole E (emitter) is smaller and smaller, and the electric current generated on this SMD PT pipe 18 is increasing.When pressing When key presses to about 4~4.3mm, the right side of 141 left side output end face of free curved surface prism and the light guide 451 being located on the left of it Side input end face is aligned completely, and the light at this moment assembled on SMD PT pipe 18 is most, therefore its current signal generated reaches most Strong state.And when switch rebound upwards, the light barrier 141-2 below 141 left side output end face of free curved surface prism starts The light of directive light guide 451 is blocked, the photosignal generated in SMD PT pipe 18 is more and more weaker, the C on this SMD PT pipe 18 Pole (collector) is also increasing to the resistance value between the pole E (emitter), until completely cutting through conducting.This process, realizes With button pressed stroke in the photosignal of ratio by control weak to strong and by strong extremely weak linear change.
The light guide 451, is light pipe, may be plastic optical fiber, diameter is between 0.5mm~5mm, originally Invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to the permitted model for pressing bond space It encloses and is arranged.
It in order to facilitate the paths feature in statement light guide (light pipe or optical fiber) and is readily appreciated that, is embodied All the light in light guide is indicated using simplified parallel dotted lines in scheme 4 and specific embodiment below, is represented Light relay direction, but it be not be actual light, actual every light can in light guide roundtrip it is multiple, it is circuitous Preceding propagation is backed towards, but the light beam in light guide is propagated fully according to the curved direction of light guide on the whole.Therefore dotted line is used Although the light of expression and every light in practical light guide are different, it is passed without departing from optical path actual in light guide Essence is broadcast, and the feature of paths can be embodied enough, the switch working principle of more convenient statement light-conducting system.
Specific embodiment 5:
The light-conducting system of the key switch according to the present invention for being used to effectively control and adjusting photosignal, it is specific real The switch control principle for applying scheme 5 is as shown in figure 12.The convergence of its 17 top of right side SMD IR pipe and turnover device, using with tool The original light guide in 18 top of left side SMD PT pipe is only changed to certainly by the identical free curved surface prism 141 of body embodiment 1 By curved surface prism 551.The free curved surface prism 551 has an off-axis, inclined freely curved face total reflection face 551-1, It can be off axis paraboloid mirror, quadratic surface or be polynomial surface, will be from the incident mistake of right side free curved surface prism 141 The light convergence of rays come is into the SMD PT pipe 18 of lower section.Dash area is the silica gel of filling in SMD PT pipe 18 in Figure 12.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with free curved surface prism 141, when It is moved to some position, so that 141 left side output end face of free curved surface prism and the free curved surface prism 551 being located on the left of it The alignment of the right input end face a part when (the present embodiment be set as push the position 2mm), the light issued from SMD IR pipe 17, After the refraction of inclined refractive curvature and deflection of 141 lower section of free curved surface prism, the micro-structure on the right of prism is converged to On the 141-1 of surface, micro-structure surface 141-1 will enter incoming light, carry out reflection turnover and collimate from the end on the prism left side Face output.The light a part exported from free curved surface prism 141 is coupled in the free curved surface prism 551 in left side, by complete The reflection and convergence of reflecting surface 551-1, using the SMD PT pipe 18 of plane 551-2 refraction post-concentration below to lower section On, optical path realizes conducting.When key continue push when, 141 left side output end face of free curved surface prism be located at its on the left of from The part being aligned by the right input end face of curved surface prism 551 is more and more, and the light assembled on SMD PT pipe 18 is more and more, Its current signal generated is just increasingly stronger.When button pressed is to about 4~4.3mm, the output of 141 left side of free curved surface prism End face is aligned completely with the right input end face for the free curved surface prism 551 being located on the left of it, is at this moment assembled on SMD PT pipe 18 Light it is most, therefore its generate current signal reach strongest state.And when switch rebound upwards, free curved surface prism Light barrier 141-2 below 141 left side output end faces starts to block the light of directive free curved surface prism 551, SMD PT pipe 18 The photosignal of middle generation is more and more weaker, until completely cutting through photosignal.This process, realizes and is in button pressed stroke The photosignal of ratio is by control weak to strong and by strong extremely weak linear change.
Specific embodiment 6:
The light-conducting system of the key switch according to the present invention for being used to effectively control and adjusting photosignal, it is specific real The switch control principle for applying scheme 6 is as shown in figure 13.The convergence of its 17 top of right side SMD IR pipe and turnover device, using with tool The identical free curved surface prism 141 of body embodiment 1.The SMD PT pipe 18 in left side has rotated 90 degree and is placed on side vertically, The optically focused part in left side is directly a collector lens, can be convex lens, or be Fresnel Lenses, this specific embodiment party Case is preferably Fei Nieer lens 651, has biggish numerical aperture angle relative to common convex lens, can assemble more Light.Dash area is the silica gel of filling in SMD IR pipe 17 in Figure 13.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with free curved surface prism 141, when It is moved to some position, so that 141 left side output end face of free curved surface prism and the Fresnel optically focused being located on the left of key axis are saturating When the right input end face a part alignment of mirror 651 (the present embodiment is set as pushing the position 2mm), issued from SMD IR pipe 17 Light converges to micro- on the right of prism after reflecting and deflect by the inclined refractive curvature of 141 lower section of free curved surface prism On body structure surface 141-1, micro-structure surface 141-1 will enter incoming light, carry out total reflection turnover and collimate from a prism left side The end face on side exports.The light a part exported from free curved surface prism 141 is coupled to the Fresnel light condensing lens 651 in left side In, it is focused on after overconvergence on the SMD PT pipe 18 of side vertical placement, optical path realizes conducting.When key continues to push, The right input end face pair of 141 left side output end face of free curved surface prism and the Fresnel light condensing lens 651 being located on the left of key axis Quasi- part is more and more, and the light assembled on SMD PT pipe 18 is more and more, and the current signal generated is just increasingly stronger.When When button pressed is to about 4~4.3mm, 141 left side output end face of free curved surface prism and the Fresnel being located on the left of key axis are poly- The right input end face of optical lens 651 is aligned completely, and the light at this moment assembled on SMD PT pipe 18 is most, therefore the electricity of its generation Stream signal reaches strongest state.And when switch rebound upwards, it is light-blocking below 141 left side output end face of free curved surface prism Piece 141-2 starts to block the light of directive Fresnel light condensing lens 651, and the photosignal generated in SMD PT pipe 18 is increasingly It is weak, until completely cutting through photosignal.This process, realize with button pressed stroke in ratio photosignal by it is weak extremely By force and by the strong control to weak linear change.
Specific embodiment 7,8
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by optically focused (collimation) lens, the light pipe positioned at optical gate two sides or optical fiber, the optical gate to link together with key axis (gear Mating plate), positioned at optical gate lead to the hole site be on one side plane, refracting prisms that another side is inclined-plane are realized, as shown in figure 14 Specific embodiment 7 and 8, it is specific embodiment 7 that left hand view is corresponding in figure, and corresponding right part of flg is specific embodiment 8.
Specific embodiment 7 by the right side of key axis SMD IR pipe 17, collimation lens, light guide, link together with key axis Optical gate (light barrier), refracting prisms, the light guide on the left of key axis, the optically focused below light guide positioned at optical gate lead to the hole site Lens and SMD PT pipe 18 form.The light guide, above output end face be slightly below the input end face of light guide, And have an inclination angle with vertical direction, which is equal to refracting prisms to the refraction angle of incident ray.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with optical gate, when being moved to some Position, so that output end face and light guide top above the positive good part alignment light guide of the refracting prisms of its lead to the hole site Input end face.From SMD IR pipe 17 issue light be coupled in light guide after collimation lens, after conducting from Output end face output above it, a part of light of output are deflected by refracting prisms, are then coupled to an optical gate left side In the light guide of side, conducted using after collector lens below, converging on SMD PT pipe 18, optical path realization is led It is logical.Output end face and light guide when key continues to push, above the refracting prisms alignment light guide of optical gate lead to the hole site The part of the input end face of top is more and more, and the light assembled on SMD PT pipe 18 is more and more, and the current signal of generation is just It is increasingly stronger.When button pressed is to about 4~4.3mm, the refracting prisms of optical gate lead to the hole site are aligned completely above light guide Output end face and light guide above input end face, the light at this moment assembled on SMD PT pipe 18 is most, thus its generate Current signal reach most strong state.And when switch rebound upwards, the refracting prisms of optical gate lead to the hole site start the leaded light that is staggered The input end face above output end face and light guide above part, the light that at this moment output end face exports above light guide Start by shutter blocks, the photosignal generated in SMD PT pipe 18 is more and more weaker, until completely cutting through photosignal.This mistake Journey realizes the photosignal proportional to button pressed stroke by control weak to strong and by strong extremely weak linear change.
The optical gate is black foil, can be metal or plastic material.Described is located at optical gate through-hole position The refracting prisms set, the left side are plane, and the right is inclined-plane, and the inclined-plane reflects incident ray, refraction angle It can be for greater than 1 or more and less than the unspecified angle between 89 degree, the present embodiment preferably this refraction angle be 15.The light guide And be light pipe, it may be plastic optical fiber, for diameter between 0.5mm~5mm, the present invention preferably light guide member is straight Diameter is 1.5mm.It can according to need random bending, be arranged according to by the permitted range of bond space.
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened The optical path for closing control is reversible, and the light path devices of optical gate two sides can turn completely and realize identical function.Specific embodiment 8 In, SMD IR pipe 17, SMD PT pipe 18 position and specific embodiment 7 exchanged completely, optical path direction is from a left side The optical path direction propagated to the right, and be embodied in embodiment 7 is to propagate from right to left.
Specific embodiment 9:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by optically focused (collimation) lens, the light pipe positioned at optical gate two sides or optical fiber, the optical gate to link together with key axis (gear Mating plate), it is realized positioned at the refracting prisms on 2 inclined-planes Bian Douwei of optical gate lead to the hole site, specific embodiment as shown in figure 15 9。
In specific embodiment 9, the prism positioned at optical gate lead to the hole site is the prisms that both sides are all inclined-plane, will left and right The incidence on both sides or emergent ray all reflect 15, the structure of other light-conducting systems then with base described in specific embodiment 7 and 8 This is consistent.Wherein the input end face of 953 top of the output end face of 952 top of light guide and light guide is all tilted with vertical direction 15 degree.The collimation lens of 17 top of SMD IR pipe, is the Fresnel collimation lens at large-numerical aperture angle.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with optical gate 941, when being moved to certain One position so that the output end face of the positive good part of refracting prisms 942 alignment light guide 952 top of its lead to the hole site and The input end face of 953 top of light guide.The light issued from SMD IR pipe 17 is coupled to leaded light after collimation lens 951 In part 952, output end face and horizontal line after conducting from the upper side are exported in 15 angle, a part of light warp of output Superrefraction prism 942 is deflected, and the direction of deflection is the direction toward horizontal line lower left 15, is then coupled to the leaded light in left side It in part 953, is conducted after being assembled using collector lens 954 below, is received by SMD PT pipe 18, optical path realization is led It is logical.When key continues to push, the refracting prisms 942 of optical gate lead to the hole site be aligned 952 top of light guide output end face and The part of the input end face of 953 top of light guide is more and more, and the light assembled in SMD PT pipe 18 is more and more, the electricity of generation It is just increasingly stronger to flow signal.When button pressed is to about 4~4.3mm, the refracting prisms 942 of optical gate lead to the hole site are aligned completely The input end face of 953 top of output end face and light guide of 952 top of light guide, the light at this moment assembled on SMD PT pipe 18 Line is most, therefore its current signal generated reaches most strong state.And when switch rebound upwards, the refraction of optical gate lead to the hole site Prism 942 start to be staggered 952 top of light guide 953 top of output end face and light guide input end face, at this moment from leaded light The light of 952 top output end face of part output starts to be staggered (as shown in right side optical path in figure), the light generated in SMD PT pipe 18 Electric signal is more and more weaker, until completely cutting through photosignal.This process realizes the photoelectricity proportional to button pressed stroke Signal is by control weak to strong and by strong extremely weak linear change.
The light guide 952 and 953, is light pipe, may be plastic optical fiber, diameter between 0.5mm~ 5mm, the present invention preferably light guide member diameter are 1.5mm.It can according to need random bending, according to permitting by bond space Perhaps range is arranged.
Specific embodiment 10,11:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by optically focused (collimation) lens, the light pipe positioned at optical gate two sides or optical fiber, the optical gate to link together with key axis (gear Mating plate), what it is positioned at optical gate lead to the hole site is that be zigzag straight grain Fresnel Lenses realize for plane, another side on one side, is such as schemed Specific embodiment 10,11 shown in 16, left hand view correspond to specific embodiment 10, and right part of flg corresponds to specific embodiment 11.
In specific embodiment 10 and 11, be located at optical gate lead to the hole site lens be the left side be plane, the right is sawtooth The straight grain Fresnel Lenses of shape, by the incidence on the right or emergent ray refraction 15.The straight grain Fresnel Lenses, each of which It is located on the right of the refracting prisms of optical gate lead to the hole site described in the bevel inclination angle and specific embodiment 7 and 8 of sawtooth Bevel inclination angle is consistent, is equivalent to and is equidistantly divided on the inclined-plane on the right of the refracting prisms in specific embodiment 7 and 8 It cuts, and is aligned in a plane again.The light-conducting system being located at left and right sides of optical gate, with specific embodiment 7 With 8 in it is almost the same.In specific embodiment 11, the left side of the output end face of 1152 top of light guide has added a coupling Lens 1153；For 1152 lower section of light guide close to the position of SMD IR pipe 17, collimation lens 1151 is Fresnel Lenses.
The working principle of specific embodiment 10 are as follows: when button pressed, cross key axis in conjunction with optical gate 1041 together down It is mobile, when being moved to some position, so that the positive good part of straight grain Fresnel Lenses 1042 of its lead to the hole site is directed at light guide The input end face of 1053 top of output end face and light guide of 1052 tops.The light issued from SMD IR pipe 17, by standard After straight lens 1051, it is coupled in light guide 1052, the output end face output after conducting from the upper side, one of output Light splitter is deflected and is reflected by the serrated face on 1042 the right of straight grain Fresnel Lenses, and leading on the right side of optical gate is then coupled to In light part 1053, is conducted after being assembled using collector lens 1054 below, received by SMD PT pipe 18, optical path is real Now be connected.When key continues to push, the straight grain Fresnel Lenses 1042 of optical gate lead to the hole site is directed at 1052 top of light guide The part of the input end face of 1053 top of output end face and light guide is more and more, and the light assembled on SMD PT pipe 18 is got over Come more, the current signal of generation is just increasingly stronger.When button pressed is to about 4~4.3mm, the straight grain of optical gate lead to the hole site The input end face of 1053 top of the output end face of 1052 top of alignment light guide and light guide completely of Fresnel Lenses 1042, At this moment the light assembled on SMD PT pipe 18 is most, therefore its current signal generated reaches most strong state.And when switch is upward When rebound, the straight grain Fresnel Lenses 1042 of optical gate lead to the hole site start to be staggered 1052 top of light guide output end face and The input end face of the top of light guide 1053, by optical gate 1041 the light that at this moment output end face exports above the light guide 1052 Stop, the photosignal generated in SMD PT pipe 18 is more and more weaker, until completely cutting through photosignal.This process realize with The proportional photosignal of button pressed stroke is by control weak to strong and by strong extremely weak linear change.
The working principle of specific embodiment 11 and specific embodiment 10 are essentially identical, and only the direction of optical path is completely inverse Turn, SMD IR pipe 17 is in the right side of optical gate, SMD PT pipe 18 in the left side of optical gate.Additionally, due to the top alignment of light guide 1152 1142 serrated face has added a condenser 1153 here to reduce from light guide 1152 to straight grain Fresnel mirror 1142 Coupling loss.
The light guide 1052,1053,1152 and 1154, is light pipe, may be plastic optical fiber, straight For diameter between 0.5mm~5mm, the present invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to It is arranged by the permitted range of bond space.
Specific embodiment 12:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by optically focused (collimation) lens, the light pipe positioned at optical gate two sides or optical fiber, the optical gate to link together with key axis (gear Mating plate), it is realized positioned at the both sides of optical gate lead to the hole site are zigzag straight grain Fresnel Lenses, specific reality as shown in figure 17 Apply scheme 12.Dash area is the silica gel of filling in SMD IR pipe 17 in Figure 17.
In specific embodiment 12, it is all that zigzag straight grain is luxuriant and rich with fragrance that the refractor for being located at optical gate lead to the hole site, which is both sides, The incidence of the right and left or emergent ray are all reflected 15 by Nie Er lens 1242.2 side is all zigzag straight grain phenanthrene alunite That lens 1242 are located at optical gate lead to the hole site described in the bevel inclination angle and specific embodiment 9 of each of which sawtooth The bevel inclination angle of 942 the right and left of refracting prisms is consistent, and optical gate through-hole will be located in specific embodiment 9 by being equivalent to The inclined-plane of 942 the right and left of refracting prisms of position is equidistantly divided, and is aligned to optical gate through-hole the right and left again In plane.The structure of other light-conducting systems then with it is almost the same described in specific embodiment 9.Wherein 1252 top of light guide Output end face and the input end face of the top of light guide 1253 all tilt 15 degree with vertical direction.The standard of 17 top of SMD IR pipe Straight lens 1251 are the Fresnel collimation lens of large-numerical aperture.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with optical gate 1241, when being moved to certain One position, so that the output end of 1252 top of the positive good part of straight grain Fresnel Lenses 1242 alignment light guide of its lead to the hole site The input end face of 1253 top of face and light guide.The light issued from SMD IR pipe 17, by collimating Fresnel Lenses 1251 Later, it is coupled in light guide 1252, the output end face after conducting from the upper side and horizontal line are exported in 15 angle, defeated A part of light out is deflected by straight grain Fresnel Lenses 1242, and the direction of deflection is the side toward horizontal line lower left 15 To, be then coupled to left side light guide 1253 in, through conducted using below collector lens 1254 assemble after, quilt SMD PT pipe 18 is received, and optical path realizes conducting.When key continues to push, the straight grain Fresnel Lenses of optical gate lead to the hole site The part of the input end face of 1253 top of output end face and light guide of 1242 alignment light guide, 1252 top is more and more, The light assembled on SMD PT pipe 18 is more and more, and the current signal of generation is just increasingly stronger.When button pressed to about 4~ When 4.3mm, the straight grain Fresnel Lenses 1242 of the optical gate lead to the hole site output end face of 1252 top of alignment light guide completely and The input end face of 1253 top of light guide, the light at this moment assembled on SMD PT pipe 18 is most, therefore the current signal of its generation Reach most strong state.And when switch rebound upwards, the straight grain Fresnel Lenses 1242 of optical gate lead to the hole site starts the leaded light that is staggered The input end face of 1253 top of output end face and light guide of 1252 top of part, at this moment from output end above light guide 1252 The light of face output starts to be staggered (as shown in right side optical path in figure), and the photosignal generated in SMD PT pipe 18 is more and more weaker, Until completely cutting through photosignal.This process realize the photosignal proportional to button pressed stroke by weak to strong and By the strong control to weak linear change.
The light guide 1252 and 1253, is light pipe, may be plastic optical fiber, diameter is between 0.5mm ~5mm, the present invention preferably light guide member diameter are 1.5mm.It can according to need random bending, according to the institute for pressing bond space The range of permission is arranged.
Specific embodiment 13,14:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Close control can by optically focused (collimation) lens, the light pipe positioned at optical gate two sides or optical fiber, link together with key axis, with one Optical gate (light barrier) Lai Shixian of a through-hole, specific embodiment 13 and 14 as shown in figure 18, left hand view is corresponding in figure is Specific embodiment 13, corresponding right part of flg is specific embodiment 14.The light guide of optical gate two sides can be coaxially to set It sets, may be non-coaxial setting, such as specific embodiment 14 such as specific embodiment 13.
The non-coaxial light guide refers to that the input of the light guide at left and right sides of optical gate and output end face be not coaxial, It allows to have a degree of eccentric, inclination or dislocation, as long as the light of coupling can achieve electricity in triggering SMD PT pipe 18 The threshold value of stream can control switch conducting and disconnection.The collimation (collector lens) can be common convex lens, It may be the Fresnel Lenses with large-numerical aperture angle, such as specific embodiment 14 such as specific embodiment 13.
The control principle of the key switch of specific embodiment 13 and specific embodiment 14 is essentially identical, specific embodiment party The working principle of case 13 are as follows: when button pressed, cross key axis moves down together in conjunction with optical gate 1341, when being moved to some Position, so that on the output end face and light guide 1353 of 1352 top of its positive good part of lead to the hole site 1342 alignment light guide The input end face of side.The light issued from SMD IR pipe 17 is coupled to light guide 1352 after collimating by collimation lens 1351 Among, the output end face output after conducting from the upper side, a part of light of output passes through through-hole 1342, is then coupled to In the light guide 1353 in left side, is conducted after being assembled using collector lens 1354 below, connect by SMD PT pipe 18 It receives, optical path realizes conducting.When key continues to push, optical gate lead to the hole site 1342 is directed at the output end of 1352 top of light guide The part of the input end face of 1353 top of face and light guide is more and more, and the light assembled on SMD PT pipe 18 is more and more, The current signal of generation is just increasingly stronger.When button pressed is to about 4~4.3mm, optical gate lead to the hole site 1342 is aligned completely The input end face of 1353 top of output end face and light guide of 1352 top of light guide, is at this moment assembled on SMD PT pipe 18 Light is most, therefore its current signal generated reaches most strong state.And when switch rebound upwards, optical gate lead to the hole site 1342 Start to be staggered 1352 top of light guide 1353 top of output end face and light guide input end face, at this moment from light guide The light of 1352 top output end faces output starts to be staggered, and is stopped by optical gate 1341, the optical telecommunications generated in SMD PT pipe 18 It is number more and more weaker, until completely cutting through photosignal.This process realizes the photosignal proportional to button pressed stroke By control weak to strong and by strong extremely weak linear change.
The light guide 1352,1353,1452 and 1453, is light pipe, may be plastic optical fiber, straight For diameter between 0.5mm~5mm, the present invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to It is arranged by the permitted range of bond space.
Specific embodiment 15:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by the oblique 4 side total reflection prism of 2 light pipes or optical fiber and 2 secondary reflections positioned at optical gate two sides Combination is to realize, specific embodiment 15 as shown in figure 19.Optical routing SMD IR pipe 17, the collimation lens of its control switch 1551,18 groups of oblique 4 square glass prism 1554 and SMD PT pipe of light guide 1552, optical gate 1541, light guide 1553,2 secondary reflections At.Dash area is the silica gel of filling in SMD IR pipe 17 in Figure 19.
Its working principle is that: when button pressed, cross key axis moves down together in conjunction with optical gate 1541, when being moved to certain One position, so that the output end face and light guide of 1552 top of its positive good part of lead to the hole site 1542 alignment light guide The input end face of 1553 tops.The light issued from SMD IR pipe 17 is coupled to leaded light after collimating by collimation lens 1551 Among part 1552, the output end face after conducting from the upper side is exported, and a part of light of output passes through through-hole 1542, then It is coupled in the light guide 1553 in left side, is incident on after conducting in oblique 4 square glass prism 1554 of lower section, by being all-trans on the right of it After penetrating face 1554-2 total reflection, it is again incident on the freely curved face total reflection face 1554-3 on the left side, freely curved face total reflection face The function that 1554-3 has both total reflection turnover simultaneously and assembles below incident ray directive, and converges to SMD PT pipe On 18, optical path realizes conducting.When key continues to push, optical gate lead to the hole site 1542 is directed at the output end of 1552 top of light guide The part of the input end face of 1553 top of face and light guide is more and more, and the light assembled on SMD PT pipe 18 is more and more, The current signal of generation is just increasingly stronger.When button pressed is to about 4~4.3mm, optical gate lead to the hole site 1542 is aligned completely The input end face of 1553 top of output end face and light guide of 1552 top of light guide, is at this moment assembled on SMD PT pipe 18 Light is most, therefore its current signal generated reaches most strong state.And when switch rebound upwards, optical gate lead to the hole site 1542 Start to be staggered 1552 top of light guide 1553 top of output end face and light guide input end face, at this moment from light guide The light of 1552 top output end faces output starts to be staggered, and is stopped by optical gate 1541, the optical telecommunications generated in SMD PT pipe 18 It is number more and more weaker, until completely cutting through photosignal.This process realizes the photosignal proportional to button pressed stroke By control weak to strong and by strong extremely weak linear change.
The light guide 1552 and 1553, is light pipe, may be plastic optical fiber, diameter between 1mm~ 3mm, the present invention preferably light guide member diameter are 1.5mm.It can according to need random bending, according to permitting by bond space Perhaps range is arranged.
Specific embodiment 16:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can realize by free curved surface prism, optical gate (light barrier) and positioned at optical gate side light guide member.Such as Figure 20 Shown in specific embodiment 16.
In this specific embodiment, it is used to collect the output light of SMD IR pipe 17 and makees what total reflection collimated and transferred For a freely curved face total reflection prism 1651, the lower section of freely curved face total reflection prism is a plane 1651-1, is collected Enter incoming light from SMD IR pipe 17, the curved surface 1651-2 of inclined upward is a total reflection free form surface, can for from The paraboloid of axis, off-axis 2 curved surfaces or be polynomial surface, will enter incoming light while carry out total reflection collimation And make 90 degree of turnovers, the light after collimation is projected from the end face on the right.The left side end face center of light guide member 1652 and freely song The right end face center of face total reflection prism 1651 is aligned, their optical gate 1641 of one, the interval with through-hole is (i.e. light-blocking Piece), it links together with key axis.
The working principle of this specific embodiment are as follows: when button pressed, cross key axis in conjunction with optical gate 1641 together down It is mobile, when being moved to some position, so that the right of its positive good part of lead to the hole site 1642 alignment free curved surface prism 1651 The input end face of 1652 top of output end face and light guide.The light issued from SMD IR pipe 17, by free curved surface prism After the fully reflecting surface 1651-2 reflection of 1651 tops, light be collimated and makees 90 degree and transfers, and the light after collimation is from the right A part of light of end face output, output passes through through-hole 1642, is then coupled in the light guide 1652 on right side, after conducting It is coupled on SMD PT pipe 18 from below, optical path realizes conducting.When key continues to push, the alignment of optical gate lead to the hole site 1642 is certainly Part by the input end face of 1652 top of the right output end face and light guide of curved surface prism 1651 is more and more, SMD The light assembled on PT pipe 18 is more and more, and the current signal of generation is just increasingly stronger.When button pressed to about 4~4.3mm When, optical gate lead to the hole site 1642 is directed at 1652 top of the right output end face and light guide of free curved surface prism 1651 completely Input end face, the light at this moment assembled on SMD PT pipe 18 is most, thus its generate current signal reach most strong state.And When switch rebound upwards, optical gate lead to the hole site 1642 start to be staggered free curved surface prism 1651 the right output end face and The input end face of 1652 top of light guide, at this moment by light since the light that 1651 the right output end face of free curved surface prism exports Lock 1641 is stopped, and the photosignal generated in SMD PT pipe 18 is more and more weaker, until completely cutting through photosignal.This process The photosignal proportional to button pressed stroke is realized by control weak to strong and by strong extremely weak linear change.
The light guide 1652, is light pipe, may be plastic optical fiber, diameter is between .5mm~5mm, originally Invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to the permitted model for pressing bond space It encloses and is arranged.
Specific embodiment 17,18:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened (optically focused) lens, mirror tunnel can be collimated by Fresnel to realize by closing control, specific embodiment as shown in figure 21 Left hand view corresponds to specific embodiment 17 in 17 and 18, Figure 21, and right part of flg corresponds to specific embodiment 18.
The mirror tunnel functions as light pipe or optical fiber, with the reflection of at least more than one Face.In specific embodiment 17,1752,1753 be mirror tunnel.In specific embodiment 18,1852 be mirror tunnel.
The switch control principle of specific embodiment 17 are as follows: when button pressed, cross key axis in conjunction with optical gate 1741 together It moves down, when being moved to some position, so that a left side for its positive good part of lead to the hole site 1742 alignment mirror tunnel 1752 The input end face on 1753 the right of side output end face and mirror tunnel.The light issued from SMD IR pipe 17, it is luxuriant and rich with fragrance by collimation Nie Er lens 1751 are incident in mirror tunnel 1752 after collimating, after the reflecting surface 1752-1 reflection above it, light Line makees 90 degree of turnovers, and the light after turnover is exported from the end face on the left side, and a part of light of output passes through through-hole 1742, then It is incident in the mirror tunnel 1753 in left side, after reflecting surface 1753-1 reflection, then transfers 90 degree and transmit downwards, finally pass through Fresnel light condensing lens 1754 converge on SMD PT pipe 18, and optical path realizes conducting.When key continues to push, optical gate through-hole position It gets over the part for setting the left side output end face of 1742 pairs of mirror tunnels 1752 and the right input end face of mirror tunnel 1753 Come more, the light assembled on SMD PT pipe 18 is more and more, and the current signal of generation is just increasingly stronger.When button pressed is to big When about 4~4.3mm, the left side output end face and reflecting mirror of the alignment mirror tunnel 1752 completely of optical gate lead to the hole site 1742 The right input end face in channel 1753, the light at this moment assembled on SMD PT pipe 18 is most, therefore its current signal generated reaches To most strong state.And when switch rebound upwards, optical gate lead to the hole site 1742 start to be staggered mirror tunnel 1752 the left side it is defeated The input end face on 1753 the right of end face and mirror tunnel out, it is at this moment defeated from the left side output end face of mirror tunnel 1752 Light out starts to be stopped by optical gate 1741, and the photosignal generated in SMD PT pipe 18 is more and more weaker, until completely cutting through Photosignal.This process realize the photosignal proportional to button pressed stroke by it is weak to strong and by strong to weak line Property variation control.
In specific embodiment 18, the structure and specific embodiment 17 on the right side of optical gate are just the same, only on the left of optical gate SMD PT pipe 18 by the way of placing vertically and mirror tunnel is substituted by a Fresnel light condensing lens 1853.
Specific embodiment 19:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by 1/2 period self-focusing lens of communication, the multimode fibre of communication and positioned at optical gate lead to the hole site Convex lens realize, specific embodiment 19 as shown in figure 22.SMD IR pipe 17 in Figure 22, shadow part in SMD PT pipe 18 It is divided into the silica gel of filling.
The specific embodiment 19, by SMD IR pipe 17, the self-focusing lens (gradient index in half period Rate lens) 1951, the multimode fibre 1952 of optic communication, with the optical gate 1941 of key axis linkage, positioned at the convex of optical gate lead to the hole site Lens 1942, the multimode fibre 1953 of optic communication, the self-focusing lens in half period 1954 and SMD PT pipe group At.The self-focusing lens 1952 in the half period, is gradual index lens, is a kind of index distribution along diameter To the column optical lens of gradual change, there is focusing and imaging function.Shown in its index distribution such as formula (1):
In formula (1): the refractive index of the centre of No-- expression self-focusing lens
The radius of r-- expression self-focusing lens
The index distribution constant of A-- expression self-focusing lens
The self-focusing lens, according to the length of length, the propagation of internal light meets the feature of following figure 23, It is from top to bottom respectively the internal light biography of the self-focusing lens in 1/4 period, 1/2 period, 3/4 period and 1 period in figure Broadcast characteristic, for length be 1/4 period self-focusing lens, due to its refractive index along radial direction from axis to periphery gradual change, Light is caused to be bent in lens interior, all light issued from A point, after bending, the end of all light on the right Face is just projected in parallel, so the self-focusing lens in 1/4 period is usually utilized to make collimation lens and focuses coupled lens. It is the self-focusing lens in 1/2 period for length, the light issued from B point, after bending, all light is on the right End face just converges to a point, the i.e. position of P point, so the self-focusing lens in 1/2 period is usually utilized to do light again Source is to optical fiber, the coupled lens of optical fiber to optical fiber.For the self-focusing lens in 3/4 period, the light issued from C point is then in it A knot (Q point) has been beaten in portion, is then collimated and is projected from the right end face again.For the self-focusing lens in 1 period, issued from D point After light has beaten a knot (R point) inside it, converged in any of the right end face again, then diverging is projected.
In this specific embodiment, the self-focusing lens 1951 is the self-focusing lens in 1/2 period, by SMD IR The light coupling that pipe issues is into the multimode fibre 1952 of optic communication.The multimode fibre 1952 of the optic communication is straight Diameter size is 125 microns, about 50 microns of fibre core size, can be arranged according to the random flexing in space below key.In Figure 22 In, the light projected from SMD IR pipe 17 is coupled in multimode fibre 1952, after the convergence of self-focusing lens 1951 through passing After leading, from it on the right side of other end project.SMD PT pipe 18 top in the optical gate other side is similarly provided with a secondary multimode fibre The self-focusing lens 1954 in 1953 and 1/2 period, the output end face on 1952 the right of optical fiber and the input terminal on 1953 left side of optical fiber In face of neat, and it is located at the left and right sides of optical gate 1941.When button pressed, positioned at the convex lens of 1941 lead to the hole site of optical gate 1942, it is placed exactly between two optical fiber, the convergence of rays that the output end face of left side multimode fibre 1952 is exported to right side Multimode fibre 1953 input end face at, optical path is in the conductive state, at this time the output end face on the right of multimode fibre 1952, with And the input end face on 1953 left side of multimode fibre, it is respectively image conjugate relation relative to convex lens 1942.When key loosens back When arriving in situ again, lens 1942 are moved upward, and are staggered with the output input face of optical fiber 1952 and optical fiber 1953, optical fiber 1952 Output light stopped completely by the baffle of optical gate, thus optical path is in an off state.
Specific embodiment 20:
The light-conducting system of the key switch according to the present invention for being used to effectively control and adjusting photosignal, it is specific real The light-conducting system of scheme 20 is applied, switch control principle is as shown in figure 24.It is by being located at 17, two points of SMD IR pipe on the left of optical gate One of the self-focusing lens 2051 in period, the multimode fibre 2052 of optic communication, the self-focusing lens in a quarter period 2053, It is used with the optical gate 2041 and the self-focusing lens 2054 in a quarter period on the right side of optical gate of the linkage of key axis, optic communication Multimode fibre 2055, the self-focusing lens in half period 2056, SMD PT pipe 18 form.The a quarter period Self-focusing lens 2053 and 2054, end face alignment, be located at the two sides of optical gate 2041.It is issued from SMD IR pipe 17 Light converges in multimode fibre 2052, after the self-focusing lens 2051 in half period again by four after conducting The self-focusing lens 2053 in/mono- period, which collimates, to be projected.
Its working principle is that: when key presses down, the through-hole of optical gate 2041 is exactly in the autohemagglutination in a quarter period The endface position of focus lens 2053 and 2054, the light projected from the collimation of left side self-focusing lens 2053, by optical gate through-hole 2042, it is incident in the self-focusing lens 2054 of right side, then converges in multimode fibre 2055, after fiber optic conduction, then pass through The self-focusing lens 2056 in half period converges on the SMD PD pipe 18 of lower section, to trigger the electricity in photoelectric receiving tube Stream, optical path are in the conductive state.When key loosens, optical gate 2041 is moved up, and the lead to the hole site on optical gate has been staggered autohemagglutination The output of focus lens 2053 and 2054 and the position of input end face, the light at this moment projected from the collimation of left side self-focusing lens 2053 Stopped by the light barrier of optical gate 2041, cannot be coupled in the self-focusing lens 2054 on right side, thus optical path is in and disconnects shape State.
It is used to effectively control described in above-mentioned specific embodiment 1~20 and adjusts the leaded light of the key switch of photosignal System, when key continues to push 2mm~4.3mm, the light assembled on SMD PT pipe 18 is more and more, the current signal of generation It is increasingly stronger.When button pressed is to about 4~4.3mm, the light assembled on SMD PT pipe 18 is most, the electric current letter generated Number reach most strong state.And when switch rebound upwards, the photosignal generated in SMD PT pipe 18 is more and more weaker, until completely Cut off photosignal.Its process is the photosignal proportional to button pressed stroke by weak to strong linear change and backhaul By strong to weak linear change.
In actual application, it can according to need and the state for controlling and adjusting photosignal is arranged in turn completely, it may be assumed that When key continues to push, the light assembled in SMD PT pipe 18 is fewer and fewer, and the electric signal of generation is more and more weaker.When under key When being depressed into about 2~4mm, absolutely not, the electric signal generated is zero to the light assembled in SMD PT pipe 18.And when switch to When upper rebound, optical path is begun to turn on, and the photosignal generated in SMD PT pipe 18 is more and more stronger, optical telecommunications when spring loosens completely Number reach strongest state.Its process is the photosignal proportional to button pressed stroke by strong extremely weak linear change, and Backhaul is by weak to strong linear change.
Specific embodiment 21,22:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Light can be located at by being located at the light pipe or optical fiber, the optical gate (light barrier) that links together with key axis of optical gate two sides by closing control Lock lead to the hole site on one side for refracting prisms that plane, another side are inclined-plane (or while be plane, another side is zigzag Fresnel Lenses) Lai Shixian.Its state for controlling and adjusting photosignal can according to need and be arranged in turn, i.e., when key after When continuous pushing, the electric signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the photosignal of generation is connected, And increasingly stronger, specific embodiment 21 and specific embodiment 22 as shown in figure 25, it is tool that left hand view is corresponding in Figure 25 Body embodiment 21, corresponding right part of flg is specific embodiment 22.
The light channel structure of specific embodiment 21 and specific embodiment 7 are almost the same, also have light guide 2151 and 2152, what it is positioned at optical gate lead to the hole site is plane, the refracting prisms 2142 that another side is inclined-plane on one side.But what its key opened the light leads The control process of the state and signal strength or weakness that pass to disconnection is complete opposite with specific embodiment 7.
The working principle of specific embodiment 21 are as follows: when key, which is in, rises resting position, be located at optical gate through-hole position The prism set is placed exactly between the input end face of 2152 top of output end face and light guide of 2151 top of light guide.From leading The light of the output end face output of the top of light part 2151, completely into being located in the refracting prisms 2142 of optical gate lead to the hole site, After the refraction of the right inclined-plane, it is coupled in the light guide 2152 on the right side of optical gate, SMD PT pipe below is coupled to after conducting On 18, the electric signal generated is most strong.And when key downwards on time, at this moment start to be staggered positioned at the prism of optical gate lead to the hole site and lead The input end face of 2152 top of output end face and light guide of 2151 top of light part, at this moment light is blocked, on SMD PT pipe 18 The electric current of generation starts to weaken.When button pressed to 2mm is to 4.3mm, exported from the output end face above light guide 2151 Light is stopped by optical gate completely, and the current signal at this time generated on SMD PT pipe 18 is zero.Therefore it pushes process and generates By dying down by force, until the photosignal disconnected, with described in specific embodiment 7 just in turn.
The light channel structure of specific embodiment 22 and the light channel structure in specific embodiment 11 are almost the same, also lead Light part 2251 and 2252, what it is positioned at optical gate lead to the hole site is plane, the straight grain Fresnel Lenses 2242 that another side is inclined-plane on one side. But the control process of the state of disconnection that its key opened the light be conducted to and signal strength or weakness with it is complete described in specific embodiment 11 It is complete opposite.
The working principle of specific embodiment 22 are as follows: when key, which is in, rises resting position, be located at optical gate through-hole position The prism set is placed exactly between the input end face of 2252 top of output end face and light guide of 2251 top of light guide.From leading The light of the output end face output of the top of light part 2251, completely into being located in the refracting prisms 2242 of optical gate lead to the hole site, After the refraction of the zigzag inclined-plane of straight grain Fresnel surface, it is coupled in the light guide 2252 on the left of optical gate, is coupled to after conducting On SMD PT pipe 18 below, the electric signal generated is most strong.And when key is pressed downwards to 2mm, it is at this moment logical positioned at optical gate The prism of hole site start to be staggered 2251 top of light guide 2252 top of output end face and light guide input end face, this time Line starts to be blocked, and the electric current generated on SMD PT pipe 18 starts to weaken.When key continues to push, above light guide 2251 Output end face output light it is more and more by shutter blocks, until completely partition, at this time generated on SMD PT pipe 18 Current signal is more and more weaker, until being zero.Therefore its pushing process is generated by dying down by force, until the photosignal disconnected, with tool Described in body embodiment 11 just in turn.
Light guide 2151,2152,2251,2252 described in specific embodiment 21 and 22, are light pipe, can also be with For plastic optical fiber, for diameter between 0.5mm~5mm, the present invention preferably light guide member diameter is 1.5mm.It can be according to need It to be arbitrarily bent, be arranged according to by the permitted range of bond space.Due to the opposite hair with SMD IR pipe 17 of its diameter The receiving plane of smooth surface and SMD PT pipe 18 is thicker, as long as therefore its end face close to SMD IR pipe 17 or SMD PT pipe 18, It is obtained with relatively high coupling efficiency, to omit collimation lens or collector lens.According further to the reversible original of optical path Reason, SMD IR pipe 17 and SMD PT pipe 18 also can according to need and exchange.
Specific embodiment 23,24:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be by being located at the light pipe or optical fiber, the optical gate (light barrier), the Fresnel that link together with key axis of optical gate side (optically focused) lens are collimated to realize.Its state for controlling and adjusting photosignal can according to need to be arranged in turn, i.e., ought press When key continues to push, the electric signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the photosignal of generation Conducting, and it is specific embodiment party that left hand view is corresponding more and more by force, in specific embodiment 23 as shown in figure 26,24, Figure 26 Case 23, corresponding right part of flg is specific embodiment 24.
The switch control principle of specific embodiment 23 are as follows: when key, which is in, rises resting position, 2341 pairs of light of optical gate Line is completely unobstructed, and the light that the SMD IR pipe 17 placed from right vertical exports is collimated by Fresnel collimation lens 2351 Afterwards, it is incident in the light guide 2352 on the left of optical gate completely, is coupled in the SMD PT pipe 18 of lower section after conducting, generates at this time Current signal it is most strong.When button pressed is to 2mm, optical gate 2341 starts the light for stopping to project from collimation lens 2351, SMD The current signal generated in PT pipe 18 starts to weaken, when key continues to press down, the current signal that is generated in SMD PT pipe 18 It is more and more weaker, until being zero.In turn when key is sprung back, the current signal generated in SMD PT pipe 18 starts to become strong, until Restore to most strong.
The switch control principle of specific embodiment 24 is almost the same with specific embodiment 23, the only propagation of optical path It turns completely in direction.
Light guide 2352 and 2451 described in specific embodiment 23 and specific embodiment 24, is light pipe, It may be plastic optical fiber, for diameter between 1mm~3mm, the present invention preferably light guide member diameter is 1.5mm.It can root According to arbitrarily bending is needed, it is arranged according to by the permitted range of bond space.Since its diameter is opposite with SMD IR pipe 17 Light-emitting surface and SMD PT pipe 18 receiving plane it is larger, as long as therefore its end face managed close to SMD IR pipe 17 or SMD PT 18, so that it may relatively high coupling efficiency is obtained, to omit collimation lens or collector lens.
Specific embodiment 25:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Close control can by freely curved face total reflection prism, the optical gate to link together with key axis (light barrier), positioned at optical gate side Light pipe or optical fiber are realized.Its state for controlling and adjusting photosignal can according to need to be arranged in turn, that is, works as key When continuing to push, the electric signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the photosignal of generation is led It is logical and increasingly stronger.Specific embodiment 25 as shown in figure 27.
The light channel structure of specific embodiment 25 and specific embodiment 16 are completely the same.Only when its button pressed, produce The strong and weak change procedure of raw current signal is completely opposite with specific embodiment 16.
Its switch control principle are as follows: when key, which is in, rises resting position, optical gate 2541 is completely unobstructed to light, from The light that SMD IR pipe 17 issues, after the fully reflecting surface 2551-2 reflection by 2551 top of free curved surface prism, light quilt 90 degree of turnovers are collimated and make, the light after collimation is exported from the end face on the right of it, and the light of output is all coupled to the optical gate right side In the light guide 2552 of side, it is coupled to from below on SMD PT pipe 18 after conducting, optical path realizes conducting, generates strongest electric current Signal.When button pressed is to 2mm, optical gate starts the light for stopping to export from 2551 the right end face of free curved surface prism, SMD The current signal generated in PT pipe 18 starts to weaken, when key continues to press down, the current signal that is generated in SMD PT pipe 18 It is more and more weaker, until being zero.In turn when key is sprung back, the current signal generated in SMD PT pipe 18 starts to become strong, until Restore to most strong.
The light guide 2552, is light pipe, may be plastic optical fiber, diameter is between 1mm~3mm, originally Invention preferably light guide member diameter is 1.5mm.It can according to need random bending, according to the permitted model for pressing bond space It encloses and is arranged.
Specific embodiment 26:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Close control can by collimation (optically focused) Fresnel Lenses, mirror tunnel, the optical gate (light barrier) that links together with key axis come It realizes, specific embodiment 26 as shown in figure 28.Its light channel structure is identical with specific embodiment 17, only works as key When pushing, the process and specific embodiment 17 of the conducting of optical path and off-state and signal strength or weakness variation are completely on the contrary, i.e. When key continues to push, the electric signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the photoelectricity of generation Signal conduction, and it is increasingly stronger.
The mirror tunnel functions as light pipe or optical fiber, with the reflection of at least more than one Face.In specific embodiment 26,2652,2653 be mirror tunnel.
Its working principle is that: when key is in the resting position risen, optical gate 2641 is staggered mirror tunnel 2652 The input end face on 2653 the right of left side output end face and mirror tunnel, it is unobstructed to optical path.It is issued from SMD IR pipe 17 Light is incident in mirror tunnel 2652, by the reflecting surface 2652-1 above it after the collimation of Fresnel Lenses 2651 After reflection, light makees 90 degree of turnovers, and the light after turnover is exported from the end face on the left side, and the light of output is incident on optical gate completely In the mirror tunnel 2653 in left side, after reflecting surface 2653-1 reflection, then transfers 90 degree and transmit downwards, finally pass through Fresnel Collector lens 2654 converges on SMD PT pipe 18, and optical path realizes conducting, generates strongest current signal.When button pressed extremely When 2mm, cross key axis moves down together in conjunction with optical gate 2641, and optical gate 2641 starts to stop the left side from mirror tunnel 2652 The light of output end face output, the current signal generated in 18 pipe of SMD PT start to weaken.When key continues to press down, SMD The current signal generated in PT pipe 18 is more and more weaker, until being zero.In turn when key is sprung back, generated in SMD PT pipe 18 Current signal starts to become strong, until restoring to most strong.This process realizes the photosignal proportional to button pressed stroke By control weak to strong and by strong extremely weak linear change.It is complete with the photosignal control process of specific embodiment 17 On the contrary.
Specific embodiment 27,28:
According to the present invention to be used to the effectively light-conducting system of control and the key switch for adjusting photosignal, key is opened Closing control can be (light-blocking by collimation (optically focused) Fresnel Lenses, unilateral mirror tunnel, the optical gate that links together with key axis Piece) Lai Shixian, specific embodiment 27 and 28 as shown in figure 29, it is specific embodiment 27 that left hand view is corresponding in figure, right Corresponding side figure is specific embodiment 28.Its light channel structure is identical with specific embodiment 18, only works as button pressed When, the conducting of optical path and off-state and the process of signal strength or weakness variation are pressed on the contrary, working as completely with specific embodiment 18 When key continues to push, the electric signal of generation is more and more weaker, until be fully disconnected, and when key loosens, the photosignal of generation Conducting, and it is increasingly stronger.
The mirror tunnel functions as light pipe or optical fiber, with the reflection of at least more than one Face.In specific embodiment 27,2752 be mirror tunnel.
The working principle of specific embodiment 27 are as follows: when key is in the resting position risen, optical gate 2741 is staggered instead The left side output end face in mirror channel 2752 and the right input end face of light-focusing Fresnel lens 2753 are penetrated, it is unobstructed to optical path. The light issued from SMD IR pipe 17 is incident in mirror tunnel 2752 after collimation Fresnel Lenses 2751 collimates, passes through It crosses after the reflecting surface 2752-1 reflection above it, light makees 90 degree of turnovers, and the light after turnover is exported from the end face on the left side, The light of output is connect after concentrated by the SMD PT pipe 18 that left side vertical is placed completely into Fresnel light condensing lens 2753 It receives, optical path realizes conducting, generates strongest current signal.When button pressed is to 2mm, cross key axis in conjunction with optical gate 2741 together It moves down, optical gate 2741 starts the light for stopping to export from the left side output end face of mirror tunnel 2752, and SMD PT 18 is managed The current signal of middle generation starts to weaken.When key continues to press down, the electric signal generated in SMD PT pipe 18 is more and more weaker, Until being zero.In turn when key is sprung back, the electric signal generated in SMD PT pipe 18 starts to become strong, until restoring to most strong. This process realizes the photosignal proportional to button pressed stroke by control weak to strong and by strong extremely weak linear change System.It is completely opposite with the photosignal control process of specific embodiment 18.
The open pipe control principle of specific embodiment 28 is almost the same with specific embodiment 27, the only propagation of optical path It turns completely in direction.
Control and adjusting photosignal of the present invention is used for the switching molding group of input equipment, by photoelectric sense technology It combines with echanical shaft system, the disconnection of optoelectronic switch and the accurate control of access is realized using light pipe or optical fiber structure System, and the power of photosignal is effectively controlled and is adjusted, it has the following advantages that and innovative: 1. present invention Core technology is (surface-pasted using SMD IR pipe (surface-pasted infrared diode or laser diode) and SMD PT pipe Photoelectric receiving tube) it is used as transmitting and reception device to realize disconnection, access and the photoelectricity of optoelectronic switch in conjunction with light pipe or optical fiber The accurate control of signal strength or weakness.2. disconnection and access of the product of the present invention switching molding group using pure photoelectric device control switch, nothing Need mechanical hard contact, will not be influenced by contact wear and deterioration by oxidation, long service life, can meet high-frequency and it is long when Between application.3. product of the present invention switching molding group uses the precision optics prism to link together with mechanical axis or optical gate (light-blocking Piece) structure, accurate switch triggering position control may be implemented, the trigger position control precision of existing purely mechanic axle key disk is +/- 0.40~0.60mm, the technology of the present invention can effectively realize the switch triggering position control of +/- 0.10mm, than existing pure machine The trigger position precision of tool axle key disk is 4~6 times high, realizes keyboard sense of touch quality stability；4. photoelectricity light-guiding type mechanical axis keyboard After using long-time, handfeel of keys is varied less, and traditional mechanical keyboard is then unable to reach；5. this photoelectricity light-guiding type Mechanical axis keyboard, when its key axis push certain distance when, with key axis linkage switch control section (prism or light barrier) with Light pipe or optical fiber are coupled, and switching molding group will be triggered and be connected, and continuing pressure switches component may be implemented photoelectricity The increasingly stronger function of signal, and when switch rebound upwards, photosignal is more and more weaker, until cutting photosignal, photoelectricity The power of the signal proportionate relationship linear with the stroke pushed, is applied to gamepad and trip for the switching molding group of this technology Play Genius mouse, can allow player to embody the speed in game and strength (such as racing car Throttle Opening Control, the power of boxing when playing game Measure, the control of the various movements of game), feel to be really true to life, therefore be very suitable to game player's use；6. using high-quality piano wire Spring, anti-fatigue performance is more preferable, screen resilience is big, switching movement faster, sensitiveer, feeling is better；7. there is no machinery to connect Electric signal jitter problem when touching, odds and ends news, the zero-lag of switch motion time, operates sensitiveer, quick and accurate.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims Within limited range.

Claims (28)

1. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, utilizes light pipe or optical fiber combination switch control section Structure come realize the optical path of optoelectronic switch disconnect, conducting and the accurate control of photosignal power,
Photoelectricity light-guiding type switching molding group, switch control section are free curved surface prism, switch control section and cross key axis one Linkage is played,
When SMD IR pipe belongs to the same side with switch control section, positioned at the lower section of switch control section；SMD PT pipe is located at same The light pipe of side or the lower section of optical fiber；
Wherein, the lower position of the left side end face of the free curved surface prism has a light barrier of a piece of black, the light barrier with The free curved surface prism is combined, and is linked together with cross key axis；
The photoelectricity light-guiding type switching molding group, except through the opposite position of moving switch control unit and light pipe or optical fiber Set realize the optical path of optoelectronic switch disconnect and conducting except, also realization photosignal is by weak to strong or by strong extremely weak linear relationship Control.
2. switching molding group according to claim 1, which is characterized in that the switching molding group is by SMD IR pipe (17), freedom Curved surface prism (141), light guide (151) and SMD PT pipe (18) composition.
3. switching molding group according to claim 2, which is characterized in that the free curved surface prism be inclined shaft aspherical or Polynomial surface, for the light issued from SMD IR pipe (17) to be converged to the micro-structure surface on the right of the free curved surface prism On (141-1).
4. switching molding group according to claim 3, which is characterized in that the micro-structure surface of the free curved surface prism (141-1) is that zigzag is totally reflected Fresnel surface, or is the microprism array face, micro- with entirely or partially reflecting effect Lens array or be balzed grating, for that will enter incoming light by refractive curvature from below, carries out entirely or partially anti- Penetrating makes light ray bending and collimates to export from the end face of the free curved surface prism left side.
5. switching molding group according to claim 4, which is characterized in that when button pressed, cross key axis is in conjunction with free song Face prism (141) moves down together, when pushing is moved to some position, so that free curved surface prism (141) left side exports When end face is aligned with the right input end face a part for the light guide (151) being located on the left of it, issued from SMD IR pipe (17) Light converges on the right of prism after reflecting and deflect by the inclined refractive curvature below free curved surface prism (141) On micro-structure surface (141-1), micro-structure surface (141-1) will enter incoming light, carry out total reflection turnover and collimate from End face output on the left of prism, the light a part exported from free curved surface prism (141) are coupled to the light guide (151) in left side In, by the deflection and conduction of light guide (151), assembled using Fresnel surface (151-1) below, last light It converges on the SMD PT pipe (18) of lower section, optical path realizes conducting；
When key continues to push, free curved surface prism (141) left side output end face and the light guide (151) on the left of it The part of the right input end face alignment is more and more, and SMD PT manages the electric current that the light assembled in (18) is more and more, generates Signal is just increasingly stronger；
When cross key axis presses to 4~4.3mm, free curved surface prism (141) left side output end face and leading on the left of it The right input end face of light part (151) is aligned completely, and the light at this moment assembled on SMD PT pipe (18) is most, therefore its generation Current signal reaches strongest state；
When switch rebound upwards, the light barrier (141-2) below the output end face of free curved surface prism (141) left side starts to block The light of directive light guide (151), it is more and more weaker that SMD PT manages the photosignal generated in (18), until completely cutting through optical telecommunications Number.
6. switching molding group according to claim 5, which is characterized in that when button pressed is to 2mm, start to trigger SMD PT The resistance value between the pole C and the pole E on SMD PT pipe (18) is managed and reduced, realizes the conducting between the pole C and the pole E；From 2mm to The pushing range of 4.30mm, electric current increases rising in a linear relationship according to depressed position, when button pressed is to 4mm~4.30mm When setting, current signal reaches most strong.
7. switching molding group according to claim 1, which is characterized in that under the output end face of free curved surface prism (141) left side The light barrier (141-2) of side, is combined with free curved surface prism (141), is ferrous metal piece or black film； The free curved surface prism (141), material is transparent optical plastics, and the cross key axis (14) therewith to link, is Perspex resin or plastic resin for various colors, cross key axis (14) and free curved surface prism (141) are using by the two It merges and uses single perspex resin injection molding, or use extra quality integrated injection molding.
8. switching molding group according to claim 2, which is characterized in that the light guide, be light pipe or plastic optical fiber, Its diameter is between 0.5mm~3mm.
9. switching molding group according to claim 1, which is characterized in that further include: the optical system of another part, another portion The optical system divided is centering type keycap character lighting system, and SMD LED (19) is used to combine centering type light guide (153) Structure, the centering type keycap character lighting system, the position of SMD LED (19) and centering type light guide (153) are arranged to With the center deviation of keycap character, centering type light guide (153) bottom allows the light coupling of SMD LED (19) into inclined close to LED Core type light guide (153), centering type light guide (153) according to being arranged by the permitted range of bond space, lead by centering type Light part (153) upper surface evenly illuminates keycap character, the keycap character, position towards the direction of keycap character center On keycap above cross key axis (14), the keycap is the rectangular keycap on computor-keyboard, or press for mouse or so Key shell.
10. switching molding group according to claim 9, which is characterized in that the keycap is rectangular on computor-keyboard Keycap.
11. switching molding group according to claim 1, which is characterized in that further include: the optical system of another part, it is another Partial optical system is centering type keycap character lighting system, and SMD LED (19) is used to combine centering type light-guiding pillar (253) Structure, the position of SMD LED (19) and centering type light-guiding pillar (253) are arranged to the center deviation with keycap character, it is eccentric Formula light-guiding pillar (253) bottom is arranged to the Fresnel curved surface (253-1) with spotlight effect, centering type is led close to the part of LED End face above light beam (253) close to keycap character is arranged to the light-emitting surface (253-2) with certain tilt angle, i.e. light-emitting surface (253-2) is inclined plane or cambered surface, this centering type light-guiding pillar is arranged above SMD LED, in LED and keycap character The heart realizes that keycap character symmetrically illuminates in the state of deviateing；Implementation principle is by centering type light-guiding pillar (253) bottom The light of SMD LED is carried out optically focused to Fresnel curved surface (253-1) and part collimates, and light passes through centering type light-guiding pillar (253) After optics cylinder multiple reflections, then reflect away via the light-emitting surface (253-2) with certain tilt angle on light guide, by The plane or cambered surface horizontal by certain tilt angle are used in light-emitting surface (253-2), by the light refraction of outgoing to partially The region of heart position opposite direction reaches keycap character to realize the Uniform Illumination of LED upper area and its opposite area of space The effect symmetrically illuminated.
12. switching molding group according to claim 1, which is characterized in that right side SMD IR manages the free form surface above (17) Caustic surface (341-3) below prism (341) is with 1 or more zigzag inclined shaft Fresnel surface, the inclined shaft Fresnel The optical axis in face is CX, is tilted toward the direction of micro-structure surface (341-1)；The inclined shaft Fresnel surface its by SMD IR manage (17) In the convergence of rays of sending to micro-structure surface (341-1)；The micro-structure surface (341-1) is that zigzag is totally reflected Fresnel Face, or be the microprism array face with entirely or partially reflecting effect, microlens array or be balzed grating,；It is micro- Body structure surface (341-1) effect is transferred and is collimated from the freedom for that will enter incoming light by refractive curvature from below End face output on the left of curved surface light-collecting prism；The lower position of the free form surface light-collecting prism left end face has a piece of black Light barrier (141-2), light barrier (141-2) are combined with free curved surface prism (341), and together with cross key axis (14) Linkage.
13. switching molding group according to claim 1, which is characterized in that the leaded light being located above left side SMD PT pipe (18) Component, leaded light component are made of individual light guide (451) in conjunction with the collector lens (452) with light-focusing function；Described is poly- Optical lens (452) is plano-convex lens or is convex-convex lens, and collector lens (452) is by the light in the light guide (451) It converges in the SMD PT pipe (18) of lower section.
14. switching molding group according to claim 1, which is characterized in that the leaded light being located above left side SMD PT pipe (18) Part (151), for the free curved surface prism (551)；The free curved surface prism (551) has an off-axis, inclined freely song Face fully reflecting surface (551-1), fully reflecting surface (551-1) is off axis paraboloid mirror, quadratic surface or is polynomial surface, is all-trans The SMD PT that incoming light reflects and converges to lower section will be entered from the free curved surface prism on right side (141) by penetrating face (551-1) It manages in (18).
15. switching molding group according to claim 1, which is characterized in that the SMD PT pipe (18) in left side is rotated by 90 ° vertically It is placed on side, it is convex lens that the optically focused part in left side, which is directly a collector lens (651), or is Fresnel Lenses.
16. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control includes collector lens (954), collimation lens (951), the first light guide for being located at optical gate (941) two sides , and the refracting edge positioned at optical gate lead to the hole site (952) and the second light guide (953), the optical gate (941) that links together with key axis Mirror (942), the first straight grain Fresnel Lenses (1142), the second straight grain Fresnel Lenses (1042) or third straight grain Fresnel Lenses (1242)；
Collimation lens is located at the lower section of the first light guide of the same side (952), and collector lens is located at the second light guide of the same side (953) Lower section；
SMD IR pipe is located at the lower section of the first light guide of the same side (952), collimation lens, and SMD PT pipe is located at the second of the same side The lower section of light guide (953), collector lens；
Photoelectricity light-guiding type switching molding group, except through mobile key switch control optical gate and the first light guide, the second light guide Relative position realize the optical path of optoelectronic switch disconnect and conducting except, also realization photosignal is by weak to strong or by strong extremely weak Linear relationship control；
Wherein, first light guide (952) is light pipe or optical fiber；
Second light guide (953) is light pipe or optical fiber.
17. switching molding group according to claim 16, which is characterized in that
The refracting prisms positioned at optical gate lead to the hole site are plane on one side, and another side is inclined-plane.
18. switching molding group according to claim 16, which is characterized in that the second straight grain Fresnel Lenses (1042) It is on one side plane, another side is zigzag.
19. switching molding group according to claim 16, which is characterized in that the third straight grain Fresnel Lenses (1242) Both sides are zigzag.
20. switching molding group according to claim 16, which is characterized in that the light guide of the optical gate two sides is coaxial arrangement Or non-coaxial setting.
21. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control is led by collector lens (1551), the third light guide (1552) for being located at optical gate (1541) two sides, the 4th Light part (1553), the oblique cubic total reflection prism (1554) of 2 secondary reflection and the optical gate with a through-hole (1542) (1541) combination is realized；
Tiltedly four directions total reflection prism (1554) is located at the lower section of the 4th light guide (1553) of the same side, and collector lens (1551) is located at The lower section of the same side third light guide (1552)；
SMD IR pipe is located at below the collector lens (1551) of the same side, and SMD PT pipe is located at the oblique four directions total reflection rib of the same side The lower section of mirror (1554)；
Photoelectricity light-guiding type switching molding group, except through mobile key switch control optical gate and third light guide, the 4th light guide Relative position realize the optical path of optoelectronic switch disconnect and conducting except, also realization photosignal is by weak to strong or by strong extremely weak Linear relationship control；
Wherein, the third light guide (1552) is light pipe or optical fiber；
4th light guide (1553) is light pipe or optical fiber.
22. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control has the optical gate of a porosity characteristics (1642) by free curved surface prism (1651), setting (1641) and light guide (1652) Lai Shixian positioned at the optical gate other side；
SMD IR pipe is located at below the free curved surface prism (1651) of the same side, and SMD PT pipe is located at the light guide of the same side (1652) lower section；
Photoelectricity light-guiding type switching molding group, except through the relative position of mobile key switch control optical gate and light guide (1652) Realize the optical path of optoelectronic switch disconnect and conducting except, also realization photosignal is by weak to strong or by strong extremely weak linear relationship control System.
23. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control has a porosity characteristics (1742) by collector lens (1754), collimation lens (1751), setting Optical gate (1741) and positioned at optical gate two sides have light reflectance signature the first mirror tunnel (1752), the second reflecting mirror Channel (1753) Lai Shixian；
Collimation lens (1751) is located at the lower section of the first mirror tunnel of the same side (1752), and collector lens (1754) is located at same The lower section of the second mirror tunnel of side (1753)；
SMD IR pipe is located at below the collimation lens (1751) of the same side, and SMD PT pipe is located at the collector lens (1754) of the same side Lower section；
Photoelectricity light-guiding type switching molding group, except through mobile key switch control optical gate and the first mirror tunnel (1752), Except the relative position of second mirror tunnel (1753) realizes that the optical path of optoelectronic switch is disconnected and is connected, photosignal is also realized By weak to strong or controlled to weak linear relationship by strong.
24. switching molding group according to claim 23, which is characterized in that first mirror tunnel (1752) and second Mirror tunnel (1753) for light reflectance signature mirror tunnel, or is the optical prism with light total reflection feature.
25. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control has the optical gate of a porosity characteristics (1842) by collector lens or collimation lens (1851), setting (1841), the SMD PT pipe (18) on the left of optical gate (1841), which is rotated by 90 °, is placed on side vertically, and the optically focused part in left side is direct It is collector lens (1853), a convex lens, or is Fresnel Lenses, and is located on the right side of optical gate with light reflection surface Third mirror tunnel (1852) Lai Shixian of (1852-1)；
Collector lens or collimation lens (1851) are located at the lower section of the same side third mirror tunnel (1852), and SMD IR pipe is located at Below the collector lens or collimation lens (1851) of the same side,
Photoelectricity light-guiding type switching molding group, except through mobile key switch control optical gate and third mirror tunnel (1852) Relative position realize the optical path of optoelectronic switch disconnect and conducting except, also realization photosignal is by weak to strong or by strong extremely weak line Sexual intercourse control.
26. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
The first self-focusing lens that key switch control passes through 1/2 period of the optic communication positioned at optical gate (1941) two sides (1951), the second self-focusing lens (1954) and the first multimode fibre (1952), the second multimode fibre of optic communication (1953) and the optical gate of a lenticular lens features (1942) is had to realize；
First self-focusing lens (1951) is located at the lower section of the first multimode fibre of the same side (1952), the second self-focusing lens (1954) it is located at the lower section of the second multimode fibre of the same side (1953)；
SMD IR pipe is located at below first self-focusing lens (1951) of the same side, and SMD PT pipe is located at second autohemagglutination of the same side The lower section of focus lens (1954)；
Photoelectricity light-guiding type switching molding group, except through mobile key switch control optical gate and the first multimode fibre (1952), the Except the relative position of two multimode fibres (1953) realizes that the optical path of optoelectronic switch is disconnected and is connected, also realization photosignal is by weak To by force or by strong to weak linear relationship control.
27. switching molding group according to claim 26, which is characterized in that key switch control further include: the of 1/4 period One self-focusing lens (2053), second self-focusing lens in 1/4 period (2054)；
First self-focusing lens (2053) in 1/4 period is located between the third multimode fibre (2052) of the same side and optical gate, and 1/4 Second self-focusing lens (2054) in period is located between the 4th multimode fibre (2055) of the same side and optical gate.
28. the switching molding group that a kind of control and adjusting photosignal are used for input equipment, which is characterized in that the switching molding group is adopted It uses SMD IR pipe and SMD PT pipe as optical signal launch and reception device, realizes photoelectricity using the structure of key switch control Optical path disconnection, conducting and the accurate control of photosignal power of switch；
Key switch control passes through freely curved face total reflection prism (2551), the optical gate (2541), the optical gate that link together with key axis Light guide (2552) Lai Shixian of the other side；
SMD IR pipe is located at below the freely curved face total reflection prism (2551) of the same side, and SMD PT pipe is located at the leaded light of the same side The lower section of part (2552)；
The relative position control of optical gate and light guide (2552) is controlled by mobile key switch and adjusts the state of photosignal For, when key continues to push, the current signal of generation is more and more weaker, until be fully disconnected, and when key loosens, generation Current signal conducting, and it is increasingly stronger.
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