CN107329277B - A kind of laser ranging divided beam system - Google Patents
A kind of laser ranging divided beam system Download PDFInfo
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- CN107329277B CN107329277B CN201710762828.4A CN201710762828A CN107329277B CN 107329277 B CN107329277 B CN 107329277B CN 201710762828 A CN201710762828 A CN 201710762828A CN 107329277 B CN107329277 B CN 107329277B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
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Abstract
The invention discloses a kind of laser ranging divided beam systems, and including object lens and eyepiece and in-between divided beam system, divided beam system includes that half pentaprism group of ridge is set on primary optical axis, and half pentaprism group of ridge is made of the first half pentaprisms and the second half pentaprisms；There is one to face object lens in the transmitting-receiving face of the first half pentaprisms or the transmitting-receiving face of the second half pentaprisms, another is fixed with liquid crystal LCD display between eyepiece；The side of half pentaprism group sets at least one light splitting compensation device, and light splitting compensation device is made of light splitting plane mirror or/and compensation right-angle prism or/and block prism；Laser or/and detector and matched condenser lens are set on the outside of light splitting compensation device, also sets Autoluminescence OLED liquid crystal display and matched display imaging len in the outside of light splitting compensation device；Multilayer dielectric film is plated in half pentaprism group and each mirror surface of light splitting compensation device or transmission mirror surface.Effect of the present invention is good, at low cost, small in size, purposes is wide.
Description
[technical field]
The invention belongs to laser range finder technical fields, and in particular to a kind of beam splitter system of laser ranging.
[background technique]
The laser range finder of the prior art by light beam beam splitter structure due to being limited, there are many unsatisfactory places,
Be first its structure is complicated mostly, shape or volume are larger, and installation and debugging difficulty is high, to the path of light beam separated transmission into
Row control difficulty phenomenon that is big, and having stability not high.Secondly, its beam splitter and relevant component often need specially to design and
Manufacture, i.e. the three of part change (standardization, seriation and generalization) it is horizontal low, design and manufacture that the period is long, and cost necessarily also rises
It is high.
[summary of the invention]
The object of the present invention is to overcome existing for prior art laser rangefinder beam beam splitter, structure is complicated, volume is inclined
Greatly, the three of part change it is horizontal it is low, so that influencing laser range finder overall design and the manufacturing cycle is long and defect at high cost, provide
A kind of compact, it is at low cost, can improve and displayed contrast to increase the comfort level of user under different ambient light intensities
Laser ranging divided beam system.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of laser ranging divided beam system, including object lens and eyepiece are provided with divided beam system in the centre of object lens and eyepiece,
Divided beam system includes that half pentaprism group of ridge is provided on primary optical axis, half pentaprism group of ridge by ridge it is opposite first half 5
Prism and the second half pentaprisms composition；The transmitting-receiving face of the first half pentaprisms or the transmitting-receiving face of the second half pentaprisms, wherein there is one
Object lens are faced, and another is fixed with liquid crystal LCD display between eyepiece；It is provided in the side of half pentaprism group of ridge
At least one light splitting compensation device, light splitting compensation device is by light splitting plane mirror or/and compensation right-angle prism or/and block prism structure
At；It is provided with laser or/and detector and matched condenser lens on the outside of light splitting compensation device, is mended in light splitting
It repays and is additionally provided with Autoluminescence OLED liquid crystal display and matched display imaging len on the outside of device；In ridge half
Multilayer dielectric film is correspondingly coated on each mirror surface or transmission mirror surface of pentaprism group and light splitting compensation device.
Using half pentaprism group of ridge make transmitting or received laser signal wherein through multiple reflections change direction and with
Light splitting compensation device matches, and the length of primary optical axis can be made to shorten dramatically, make compact-sized, volume greatly reduces；Due to half
The components such as pentaprism and other displays, transmitting can selection standard or general approved product, be highly advantageous to design
With the cycle time of manufacture, production cost is reduced, and market significance is very big.
It is also very meaningful corrective measure using light splitting plane mirror, processing and manufacturing plane mirror is optics member the simplest
Part processing, quality are easy to control, and cost is the cheapest, and plated film is also relatively easy to the technique implemented on plane mirror, more important
Be using light splitting plane mirror the lateral dimensions of whole device can be made to reduce, weight is miniaturised and mitigated conducive to instrument.
Preferred embodiment, the transmitting-receiving face of the first half pentaprisms face object lens, the transmitting-receiving face of the second half pentaprisms and eyepiece it
Between be fixed with liquid crystal LCD display；The light splitting compensation device, is made of light splitting plane mirror；It is divided plane mirror and the key light
Axis is parallel or at a certain angle, and receives with the second transmitting-receiving face of the first half pentaprisms and with the second of the second half pentaprisms
The other angles leavened dough in angle all at 45 ° or 40 degree of -50 degree range；Light splitting plane mirror has is coated with multilayer dielectric film on one side, more
Layer dielectric is reflectance coating to the light wave of wavelength 400nm -620nm, and the light wave to wavelength 640nm -700nm is part reflective semitransparent film,
It and is then anti-reflection film to the light wave of wavelength 885nm -925nm.
Preferred embodiment, the transmitting-receiving face of the second half pentaprisms face object lens, the transmitting-receiving face of the first half pentaprisms and eyepiece it
Between be fixed with liquid crystal LCD display；The light splitting compensation device is made of a light splitting plane mirror and a compensation right-angle prism,
It light splitting plane mirror and compensates right-angle prism and is respectively at the corresponding two sides of primary optical axis；It is divided the of plane mirror and the second half pentaprisms
The second transmitting-receiving face in two transmitting-receiving faces and the first half pentaprisms angle all at 45 ° or 40 degree -50 other angle spent in range,
Outside is provided with Autoluminescence OLED liquid crystal display and matched display imaging len；Compensate right-angle prism and first
Half pentaprism composes composite prism, and outside is provided with laser or/and detector and matched condenser lens；Point
Optical plane mirror has is coated with multilayer dielectric film on one side, and the multilayer dielectric film is to wavelength 400nm -620nm and wavelength 885nm -925nm
Light wave be reflectance coating, and be part reflective semitransparent film to the light wave that wavelength is 640nm -700nm；The cemented surface of the composite prism plates
There is multilayer dielectric film, which is reflectance coating to the wave of wavelength 400nm -620nm, and to wavelength 885nm -925nm's
Light wave is anti-reflection film.
Preferred embodiment, the transmitting-receiving face of the first half pentaprisms face object lens, and the transmitting-receiving face of the second half pentaprisms and eyepiece
Between be fixed with liquid crystal LCD display；The light splitting compensation device is glued by light splitting right-angle prism and compensation isosceles right-angle prism
It is constituted at block prism；First transmitting-receiving face of light splitting right-angle prism faces the second transmitting-receiving face of the first half pentaprisms, and light splitting is straight
Second transmitting-receiving face of angle prism faces the second transmitting-receiving face of the second half pentaprisms；Compensate the first transmitting-receiving face of isosceles right-angle prism
Outside be provided with laser or/and detector and matched condenser lens, compensate isosceles right-angle prism second receive
Autoluminescence OLED liquid crystal display and matched display imaging len are provided on the outside of fermentation；The glue of block prism
Conjunction face, i.e. middle bevels are coated with multilayer dielectric film, and multilayer dielectric film is reflectance coating to the light wave of wavelength 400nm -620nm, to wave
The light wave of long 640nm -700nm is part reflective semitransparent film, and is anti-reflection film to the light wave of wavelength 885nm -925nm.
Preferred embodiment, the transmitting-receiving face of the second half pentaprisms face object lens, the transmitting-receiving face of the first half pentaprisms and eyepiece it
Between be fixed with liquid crystal LCD display；The light splitting compensation device is made of a block prism and a compensation right-angle prism, is stood
Square glass prism is made of light splitting right-angle prism and compensation isosceles right-angle prism gluing, and block prism and compensation right-angle prism are respectively at
The corresponding two sides of primary optical axis；First transmitting-receiving face of light splitting right-angle prism faces the second transmitting-receiving face of the second half pentaprisms, light splitting
Second transmitting-receiving face of right-angle prism faces the second transmitting-receiving face of the first half pentaprisms；Compensate the second transmitting-receiving of isosceles right-angle prism
Autoluminescence OLED liquid crystal display and matched display imaging len are provided on the outside of face；Compensate right-angle prism with
The first half pentaprisms compose composite prism, outside setting laser or/and detector and matched condenser lens；
The cemented surface of block prism, i.e. middle bevels are coated with multilayer dielectric film, and the multilayer dielectric film is to wavelength 400nm -620nm and wave
The light wave of long 885nm -925nm is reflectance coating, and the light wave to wavelength 640nm -700nm is part reflective semitransparent film；The composite prism
Cemented surface be coated with multilayer dielectric film, which is reflectance coating to the light wave of wavelength 400nm -620nm, and to wavelength
The light wave of 885nm -925nm is anti-reflection film.
Preferred embodiment, the multilayer dielectric film be plate multilayer dielectric film in the substrate of mirror surface, the multilayer dielectric film by
A variety of different media are constituted through apolegamy thickness, the number of plies and collocation order, and the multilayer dielectric film is anti-to the light of a certain part wavelength
It penetrates, and the light transmission of other part or half reflection and half transmission.
Preferred embodiment, the reflectivity of the part reflective semitransparent film and the ratio of transmissivity are R/T=1:1 or R/T=3:7.
Preferred embodiment, the liquid crystal LCD display have double LCD display functions, red, black or other colors may be implemented
Display switching, to reach the function of improving and display contrast under different ambient light intensities, increase the comfort of user
And working efficiency.
Black LCD on sighting system optical axis is changed into the LCD of more high transmittance technology by high brightness, high transmittance function,
Only with red liquid crystal, sighting system can be made to have higher luminous energy to transmit.
Preferred embodiment, the multilayer dielectric film are the film layer that following multilayer dielectricity is plated in the substrate of mirror surface:
G(HL)p(LH)pA
H, L in formula --- optical thickness are the high and low refractive index film layers of 1/4 wavelength；
The substrate of G --- mirror surface；
A --- air；
p——1、2、3……。
Preferred embodiment, the number of plies p=2 of the multilayer dielectric film.
If just for reflection and transmission, without considering semi-transflective reflective, then should just take into account cost
Under the premise of, as far as possible by number of plies p select it is big some p is bigger, reflect it is stronger, but on transmission then almost without influence.
The first half pentaprisms and the second half pentaprisms can be that geometry is identical, and only the requirement of plated film has area
Not.
To the surface shape of angle, length, shape and position, optical element in relation to part and component in foregoing invention content
The technical requirements such as shape and bubble degree, and national standard, portion's mark, rower or enterprise's target relevant criterion are pressed to the technical requirements of material
It is required that determining.
The beneficial effects of the present invention are:
1, shorten the length of primary optical axis using half pentaprism group of ridge, i.e. the axial dimension of whole device is substantially contracted
It is short, make compact-sized, volume greatly reduces；
2, using light splitting plane mirror, not only quality is very easy to control, but also reduces the lateral dimensions of whole device, benefit
Weight is miniaturised and mitigated in instrument；
3, relevant optical can be conducive to realize that three change with selection standard or general approved product；
4, the period designed and manufactured is short, and production cost reduces, and market significance is big；
5, red, black or other color display switchings may be implemented, to reach in different rings in double LCD display functions
The function of displaying contrast is improved under the luminous intensity of border, increases the comfort of user；
6, high brightness, high transmittance function change the black LCD on sighting system optical axis into more high transmittance technology
LCD can must make sighting system have higher luminous energy to transmit only with red liquid crystal；
7, the number of plies of multilayer dielectric film can be selected to adjust the ratio of reflectivity and transmissivity according to the design needs.
[Detailed description of the invention]
Attached drawing 1 is the setting schematic diagram of the first embodiment of the invention；
Attached drawing 2 is transmission path schematic diagram of the aiming beam of the first embodiment in divided beam system；
Attached drawing 3 is the transmission path schematic diagram of the reception or transmitting signal beams of the first embodiment in divided beam system；
Attached drawing 4 is biography of the light beam of the Autoluminescence OLED liquid crystal display transmitting of the first embodiment in divided beam system
Defeated path schematic diagram；
Attached drawing 5 is the setting schematic diagram of second of embodiment of the invention；
Attached drawing 6 is transmission path schematic diagram of the aiming beam of second of embodiment in divided beam system；
Attached drawing 7 is transmission path schematic diagram of the reception signal beams of second of embodiment in divided beam system；
Attached drawing 8 is biography of the light beam of the Autoluminescence OLED liquid crystal display transmitting of second of embodiment in divided beam system
Defeated path schematic diagram；
Attached drawing 9 is the setting schematic diagram of the third embodiment；
Attached drawing 10 is the setting schematic diagram of the 4th kind of embodiment；
Attached drawing 11 is a kind of luminous energy transmission figure.
In figure, object lens 11；The first half pentaprisms 12；Transmitting-receiving face 121；Cemented surface 122 (332)；Second transmitting-receiving face 123；Point
Optical plane mirror 13；Upper side 131；Downside 132；The second half pentaprisms 14；Second transmitting-receiving face 141；Interior reflective surface 142；Transmitting-receiving
Face 143；Liquid crystal LCD display 15；Eyepiece 16 (17)；It is divided right-angle prism 18；First transmitting-receiving face 181；Second transmitting-receiving face 182；
Inclined-plane 183；Compensate isosceles right-angle prism 19；Second transmitting-receiving face 191；First transmitting-receiving face 192；Inclined-plane 193；Autoluminescence OLED liquid
Crystal display 21；Show imaging len 22；Laser 31；Condenser lens 32；Compensate right-angle prism 33；Transmitting-receiving face 331；Laser
41；Condenser lens 42；Aiming beam a1；Aiming beam a2；Receive signal beams b1；Receive signal beams b2；Light beam c1；It is spontaneous
The light beam c2 of light formula OLED liquid crystal display transmitting；Focal plane FP.
[specific embodiment]
The invention will be further described with specific embodiment with reference to the accompanying drawing.
Embodiment 1: referring to Fig. 1, a kind of laser ranging divided beam system, including object lens 11 and eyepiece 16 (17), in object lens 11
The centre of eyepiece 16 is provided with divided beam system, divided beam system includes that half pentaprism group of ridge, ridge are provided on primary optical axis
Half pentaprism group is made of the first half opposite pentaprisms 12 of ridge and the second half pentaprisms 14；The transmitting-receiving of the first half pentaprisms 12
Face 121 faces object lens 11, is fixed with liquid crystal LCD display 15 between the transmitting-receiving face 143 and eyepiece 16 of the second half pentaprisms 14；
The side of half pentaprism group of ridge is provided with a light splitting compensation device, light splitting compensation device is made of light splitting plane mirror 13；
There are many schemes may be selected for the configuration mode of light splitting plane mirror 13, the first scheme is that light splitting plane mirror 13 is parallel with primary optical axis,
And the second transmitting-receiving angle all at 45 ° of face 141 with the second transmitting-receiving face 123 of the first half pentaprisms 12 and the second half pentaprisms 14；
Another scheme is that light splitting plane mirror 13 and primary optical axis are also at a certain angle, such as 5 degree, and light splitting plane mirror 13 and the first half
Second transmitting-receiving face of pentaprism and with the second transmitting-receiving face of the second half pentaprisms all at other angles in 40 degree -50 degree range
Degree.The first described scheme is conducive to more compact structure, more intuitive and adjustment is easier, and the another kind scheme is then conducive to
Expand and selects the range of existing standard component and space configuration more motor-driven.In the outside of light splitting compensation device, along second half 5
The normal direction in the second transmitting-receiving face 141 of prism 14, across light splitting plane mirror 13, just opposite the second half pentaprism 14 second is received and dispatched
The position in face 141 is provided with Autoluminescence OLED liquid crystal display 21 and matched display imaging len 22；It is being divided
The outside of compensation device, along the normal direction in the second transmitting-receiving face 123 of the first half pentaprisms 12, across light splitting plane mirror 13 just phase
Laser 31 and matched condenser lens 32 are provided with to the position in the second transmitting-receiving face 123 of the first half pentaprisms 12.
It is correspondingly coated on each mirror surface or transmission mirror surface of half pentaprism group of ridge and light splitting compensation device
Multilayer dielectric film.
Principle and technique citing about plated film is summarized as follows:
The upper side 131 of light splitting plane mirror 13 is coated with multilayer dielectric film, i.e., plates following multilayer in the substrate of mirror surface and be situated between
The film layer of matter:
G(HL)p(LH)pA
H, L in formula --- optical thickness are the high and low refractive index film layers of 1/4 wavelength；
The substrate of G --- mirror surface；
A --- air；
p——1、2、3……。
The laser wavelength lambda of the present embodiment selection laser0=905nm.According to the optics of the deielectric-coating of above-mentioned formula plating
With a thickness of wavelength X01/4 integral multiple of=905nm, by formula it is found that middle layer LL is 1/2 wavelength X0Optical thickness, to wave
A length of λ0Light do not work, can be regarded as omitting, remaining middle layer is HH, equally can be omitted, and so on, can be with
Know entire membrane system to wavelength X0The transmissivity that light has same substrate the same, however for wavelength departure λ0Light because middle layer is not
The condition for meeting half-wavelength, because having formed reflectance coating or semi-reflective film, the number of plies is more, and reflection is bigger, so the number of plies is suitably selected,
It can reach the design requirement to reflectivity.In conclusion can be realized to the light wave of wavelength 885nm -925nm is anti-reflection film, together
When be part reflective semitransparent film to the light wave of wavelength 640nm -700nm, the light wave to wavelength 400nm -620nm is reflectance coating, Er Qiejie
The reflectivity of plasma membrane and the ratio of transmissivity are R/T=1:1 or R/T=3:7.
Liquid crystal LCD display 15 has double LCD display functions, and the display switching of red, black or other colors may be implemented,
To reach the function of improving and display contrast under different ambient light intensities, increase the comfort and working efficiency of user.
In addition, the black LCD on sighting system optical axis to be changed into the LCD of more high transmittance technology, only with red liquid crystal, can make to aim at
System has higher luminous energy to transmit, to reach high brightness, high transmittance function.
Laser 41, condenser lens 42 in attached drawing 1 are the transmitting to match with laser 31 and condenser lens 32 ---
Receiving element.FP is focal plane.
About different light beams, transmission path is described below in divided beam system:
Attached drawing 2 is transmission path schematic diagram of the aiming beam a1 in divided beam system, and specifically, a1 enters the first half 5 rib
The transmitting-receiving face 121 of mirror 12, in the first half pentaprisms 12 after secondary reflection, from the second transmitting-receiving face of the first half pentaprisms 12
123 outputs, but the second transmitting-receiving face 141 after light splitting plane mirror 13 reflects through the second half pentaprisms 14 enters the second half pentaprisms
14, in the second half pentaprisms 14 after secondary reflection, is exported from the transmitting-receiving face 143 of the second half pentaprisms 14, be transmitted to liquid crystal LCD
Display 15.
Attached drawing 3 is to receive transmission path schematic diagram of the signal beams b1 in divided beam system, and specifically b1 enters the first half
The transmitting-receiving face 121 of pentaprism 12, in the first half pentaprisms 12 after secondary reflection, from the second transmitting-receiving of the first half pentaprisms 12
Face 123 exports, and is transmitted through laser pickoff through being divided plane mirror 13 (with laser emitter same light path).
Attached drawing 4 is transmission path signal of the light beam c1 of Autoluminescence OLED liquid crystal display transmitting in divided beam system
After the c1 transmission plane spectroscope 13 that figure, specifically Autoluminescence OLED liquid crystal display 21 emit, into the second half pentaprisms
14 the second transmitting-receiving face 141, in the second half pentaprisms 14 after secondary reflection, from the transmitting-receiving face 143 of the second half pentaprisms 14
Output, is transmitted to liquid crystal LCD display.
Using half pentaprism group of ridge make transmitting or received laser signal wherein through multiple reflections change direction and with
Light splitting compensation device matches, and the length of primary optical axis can be made to shorten dramatically, make compact-sized, volume greatly reduces；Due to half
The components such as pentaprism and other display, transmitting can selection standard or general approved product, be highly advantageous to and set
The cycle time of meter and manufacture, and production cost reduces, market significance is very big.
It is also very meaningful corrective measure using light splitting plane mirror 13, processing and manufacturing plane mirror is in processing optical camera lens
Optical element processing the simplest, quality are easy to control, and cost is the cheapest, and plated film is also relatively easy to reality on plane mirror
The technique applied, it is often more important that application light splitting plane mirror the lateral dimensions of whole device can be made further to reduce, be conducive to instrument into
The miniaturization of one step and mitigation weight.
Embodiment 2: referring to attached drawing 5, the transmitting-receiving face 143 of the second half pentaprisms 14 faces object lens 11, the first half pentaprisms
Liquid crystal LCD display 15 is fixed between 12 transmitting-receiving face 121 and eyepiece 16 (17)；Compensation device is divided by a light splitting plane
Mirror 13 and compensation right-angle prism 33 are constituted, and light splitting plane mirror 13 and compensate right-angle prism 33 to be respectively at primary optical axis corresponding
Two sides；It is divided the second transmitting-receiving face 141 of plane mirror 13 and the second half pentaprisms 14 and the second of the first half pentaprisms 12 is received and dispatched
The angle all at 45 ° of face 123, outside are provided with Autoluminescence OLED liquid crystal display 21 and matched display imaging len
22；Compensation right-angle prism 33 composes composite prism with the first half pentaprisms 12, on the outside of be provided with laser 31 and therewith
Matched condenser lens 32, laser 31 face the transmitting-receiving face 331 of compensation right-angle prism 33；It is divided the upper side of plane mirror 13
131 or downside 132 be coated with multilayer dielectric film, the multilayer dielectric film is to wavelength 400nm -620nm and wavelength 885nm -925nm
Light wave be reflectance coating, and be part reflective semitransparent film to the light wave that wavelength is 640nm -700nm；The cemented surface of the composite prism
122 (or 332) are coated with multilayer dielectric film, which is reflectance coating to the wave of wavelength 400nm -620nm, and to wavelength
The light wave of 885nm -925nm is anti-reflection film；The interior reflective surface 142 of the second half pentaprisms 14 is coated with reflectance coating.Related plating medium
The principle and technique of film are referring to embodiment 1, and related light splitting and transmission path copy embodiment 1 to analyze, referring to attached drawing 5,6,7 and 8.
Attached drawing 6 is transmission path schematic diagram of the aiming beam a2 in divided beam system, and specifically, a2 enters the second half 5 rib
The transmitting-receiving face 141 of mirror 14, in the second half pentaprisms 14 after secondary reflection, from the second transmitting-receiving face of the second half pentaprisms 14
141 outputs enter the first half pentaprisms 12 through the second transmitting-receiving face 123 of the first half pentaprisms 12 by the reflection of light splitting plane mirror 13,
In the first half pentaprisms 12 after secondary reflection, exported from the transmitting-receiving face 121 of the first half pentaprisms 12, directive liquid crystal LCD is aobvious
Show device 15.
Attached drawing 7 is to receive transmission path schematic diagram of the signal beams b2 in divided beam system, and specifically b2 enters the second half
The transmitting-receiving face 143 of pentaprism 14, in the second half pentaprisms 14 after secondary reflection, from the second transmitting-receiving of the second half pentaprisms 14
Face 141 exports, and the second transmitting-receiving face 123 for reflexing to through being divided plane mirror 13 the first half pentaprisms 12 enters the first half pentaprisms
12, in the first half pentaprisms 12 after primary event, then it is saturating by compensation right-angle prism 33 and the first half 12 cemented surfaces of pentaprism
It is incident upon laser pickoff 31 (with laser emitter same light path).
Attached drawing 8 is transmission path signal of the light beam c2 of Autoluminescence OLED liquid crystal display transmitting in divided beam system
After the c2 transmission plane spectroscope 13 that figure, specifically Autoluminescence OLED liquid crystal display 21 emit, into the first half pentaprisms
12 the second transmitting-receiving face 123, in the first half pentaprisms 12 after secondary reflection, from the transmitting-receiving face 121 of the first half pentaprisms 12
Output, is transmitted to liquid crystal LCD display 15.
Remaining structure with embodiment 1,
Embodiment 3: referring to attached drawing 9, the transmitting-receiving face 121 of the first half pentaprisms 12 faces object lens 11, and the second half 5 rib
Liquid crystal LCD display 15 is fixed between the transmitting-receiving face 143 and eyepiece 16 (17) of mirror 14；Compensation device is divided by light splitting right-angled edge
Mirror 18 and compensation isosceles right-angle prism 19 compose block prism composition；It is divided the first transmitting-receiving 181 face of face of right-angle prism 18
The second transmitting-receiving face 123 of the first half pentaprisms 12, the second transmitting-receiving face 182 of light splitting right-angle prism 18 faces the second half 5 rib
Second transmitting-receiving face 141 of mirror 14；Compensate isosceles right-angle prism 19 the first transmitting-receiving face 192 outside be provided with laser 31 and
Matched condenser lens 32, the outside for compensating the second transmitting-receiving face 191 of isosceles right-angle prism 19 are provided with Autoluminescence
OLED liquid crystal display 21 and matched display imaging len 22；On the inclined-plane of the light splitting right-angle prism 18 of block prism
It is coated with multilayer dielectric film on 183, and multilayer dielectric film is protected by the inclined-plane of compensation isosceles right-angle prism 19 193, multilayer
Deielectric-coating is reflectance coating to the light wave of wavelength 400nm -620nm, and the light wave to wavelength 640nm -700nm is part reflective semitransparent film, and
Light wave to wavelength 885nm -925nm is anti-reflection film.Principle and technique in relation to plating deielectric-coating are referring to embodiment 1, remaining knot
Structure is the same as embodiment 1.
Embodiment 4: referring to attached drawing 10, the transmitting-receiving face of the second half pentaprisms 14 faces object lens 11, the first half pentaprisms 12
Transmitting-receiving face 121 and eyepiece 16 (17) between be fixed with liquid crystal LCD display 15；Be divided compensation device by a block prism and
One compensation right-angle prism 33 is constituted, and block prism is made of light splitting right-angle prism 18 and compensation 19 gluing of isosceles right-angle prism,
Block prism is respectively at the corresponding two sides of primary optical axis with compensation right-angle prism 33；It is divided the first transmitting-receiving face of right-angle prism 18
181 face the second transmitting-receiving face 141 of the second half pentaprisms 14, and the second transmitting-receiving face 182 of light splitting right-angle prism 18 faces the
Second transmitting-receiving face 123 of half pentaprism 12；The outside in the second transmitting-receiving face 191 of compensation isosceles right-angle prism 19 is provided with spontaneous
Light formula OLED liquid crystal display 21 and matched display imaging len 22；Compensate right-angle prism 33 and the first half pentaprisms
12 compose composite prism, outside setting laser 31 and matched condenser lens 32；The glue of the block prism
Conjunction face, i.e. inclined-plane 183 are coated with multilayer dielectric film and have the inclined-plane 193 of compensation isosceles right-angle prism 19 to be protected, which is situated between
Plasma membrane is reflectance coating to the light wave of wavelength 400nm -620nm and wavelength 885nm -925nm, to the light of wavelength 640nm -700nm
Wave is part reflective semitransparent film；The glue surface of the composite prism is coated with multilayer dielectric film, and the multilayer dielectric film is to wavelength 400nm -620nm
Light wave be reflectance coating, and to the light wave of wavelength 885nm -925nm be anti-reflection film.Principle and technique ginseng in relation to plating deielectric-coating
See embodiment 1, remaining structure is the same as embodiment 1.
Embodiment 5: being chosen to be 2 for the number of plies of the multilayer dielectric film in embodiment 1, then when the optical maser wavelength for selecting laser
λ0When=905nm, deielectric-coating is anti-reflection film to the light wave of wavelength 885nm -925nm, while to the light wave of wavelength 640nm -700nm
For part reflective semitransparent film, the light wave to wavelength 400nm -620nm is reflectance coating, and the ratio of the reflectivity of deielectric-coating and transmissivity
For R/T=1:1, remaining structure is the same as embodiment 1.
A kind of luminous energy transmission figure is referring to attached drawing 11.
A kind of laser ranging divided beam system of the present invention, have topology layout it is very compact, it is small in size, use comfortable, cost
Low advantage.If those skilled in the art makees simple modifications or substitutions to foregoing invention content, such change cannot
It is considered to be detached from protective scope of the claims of the invention, it is all that those skilled in the art is obviously repaired in this way
Change and is included within the scope of the claims of the invention.
Claims (10)
1. a kind of laser ranging divided beam system, including object lens and eyepiece, which is characterized in that be provided in the centre of object lens and eyepiece
Divided beam system, divided beam system include that half pentaprism group of ridge is provided on primary optical axis, and half pentaprism group of ridge is opposite by ridge
The first half pentaprisms and the second half pentaprism compositions；The transmitting-receiving face of the first half pentaprisms or the transmitting-receiving face of the second half pentaprisms,
Wherein there is one to face object lens, and another is fixed with liquid crystal LCD display between eyepiece；In half pentaprism group of ridge
Side is provided at least one light splitting compensation device, light splitting compensation device by light splitting plane mirror or/and compensation right-angle prism or/and
Block prism is constituted；Laser or/and detector are provided on the outside of light splitting compensation device and matched focusing is saturating
Mirror, is additionally provided with Autoluminescence OLED liquid crystal display on the outside of light splitting compensation device and matched display imaging is saturating
Mirror；Multilayer is correspondingly coated on each mirror surface or transmission mirror surface of half pentaprism group of ridge and light splitting compensation device to be situated between
Plasma membrane.
2. a kind of laser ranging divided beam system according to claim 1, which is characterized in that the transmitting-receiving face of the first half pentaprisms
It faces object lens, is fixed with liquid crystal LCD display between the transmitting-receiving face and eyepiece of the second half pentaprisms；The light splitting compensation dress
It sets, is made of light splitting plane mirror；Be divided plane mirror it is parallel or at a certain angle with the primary optical axis, and with the first half 5 rib
Second transmitting-receiving face of mirror and its in range is spent with the second transmitting-receiving face angle all at 45 ° of the second half pentaprisms or 40 degree -50
His angle；Light splitting plane mirror has is coated with multilayer dielectric film on one side, and multilayer dielectric film is reflection to the light wave of wavelength 400nm-620nm
Film, the light wave to wavelength 640nm-700nm is part reflective semitransparent film, and is then anti-reflection film to the light wave of wavelength 885nm-925nm.
3. a kind of laser ranging divided beam system according to claim 1, which is characterized in that the transmitting-receiving face of the second half pentaprisms
It faces object lens, is fixed with liquid crystal LCD display between the transmitting-receiving face and eyepiece of the first half pentaprisms；The light splitting compensation device
It is made of a light splitting plane mirror and a compensation right-angle prism, light splitting plane mirror and compensation right-angle prism are respectively at primary optical axis
Corresponding two sides；The second transmitting-receiving face in the second transmitting-receiving face and the first half pentaprisms that are divided plane mirror and the second half pentaprisms is all
Angle at 45 ° or 40 degree -50 degree range in other angles, outside be provided with Autoluminescence OLED liquid crystal display and with
Matched display imaging len；Compensation right-angle prism composes composite prism with the first half pentaprisms, on the outside of be provided with it is sharp
Light device or/and detector and matched condenser lens；Light splitting plane mirror has is coated with multilayer dielectric film on one side, which is situated between
Plasma membrane is reflectance coating to the light wave of wavelength 400nm-620nm and wavelength 885nm-925nm, and is 640nm-700nm to wavelength
Light wave be part reflective semitransparent film；The cemented surface of the composite prism is coated with multilayer dielectric film, and the multilayer dielectric film is to wavelength
The wave of 400nm-620nm is reflectance coating, and is anti-reflection film to the light wave of wavelength 885nm-925nm.
4. a kind of laser ranging divided beam system according to claim 1, which is characterized in that the transmitting-receiving face of the first half pentaprisms
It faces object lens, and is fixed with liquid crystal LCD display between the transmitting-receiving face and eyepiece of the second half pentaprisms；The light splitting compensation dress
It sets and is composed block prism by light splitting right-angle prism and compensation isosceles right-angle prism and constituted；It is divided the first transmitting-receiving face of right-angle prism
The the second transmitting-receiving face for facing the first half pentaprisms, the second transmitting-receiving face for being divided right-angle prism face the of the second half pentaprisms
Two transmitting-receiving faces；Laser or/and detector are provided on the outside of first transmitting-receiving face of compensation isosceles right-angle prism and are matched therewith
The condenser lens of set, compensate isosceles right-angle prism second transmitting-receiving face on the outside of be provided with Autoluminescence OLED liquid crystal display with
And matched display imaging len；The cemented surface of block prism, i.e. middle bevels are coated with multilayer dielectric film, multilayer dielectric film
Light wave to wavelength 400nm-620nm is reflectance coating, and the light wave to wavelength 640nm-700nm is part reflective semitransparent film, and to wavelength
The light wave of 885nm-925nm is anti-reflection film.
5. a kind of laser ranging divided beam system according to claim 1, which is characterized in that the transmitting-receiving face of the second half pentaprisms
It faces object lens, is fixed with liquid crystal LCD display between the transmitting-receiving face and eyepiece of the first half pentaprisms；The light splitting compensation device
It is made of a block prism and a compensation right-angle prism, block prism is by light splitting right-angle prism and compensation isosceles right-angle prism
Gluing forms, and block prism is respectively at the corresponding two sides of primary optical axis with compensation right-angle prism；Be divided right-angle prism first is received
Fermentation faces the second transmitting-receiving face of the second half pentaprisms, and the second transmitting-receiving face for being divided right-angle prism faces the first half pentaprisms
Second transmitting-receiving face；Compensation isosceles right-angle prism second transmitting-receiving face on the outside of be provided with Autoluminescence OLED liquid crystal display with
And matched display imaging len；Compensation right-angle prism composes composite prism with the first half pentaprisms, and outside is arranged
Laser or/and detector and matched condenser lens；The cemented surface of block prism, i.e. middle bevels are coated with multilayer Jie
Plasma membrane, which is reflectance coating to the light wave of wavelength 400nm-620nm and wavelength 885nm-925nm, to wavelength
The light wave of 640nm-700nm is part reflective semitransparent film；The cemented surface of the composite prism is coated with multilayer dielectric film, the multilayer dielectric film
Light wave to wavelength 400nm-620nm is reflectance coating, and is anti-reflection film to the light wave of wavelength 885nm-925nm.
6. a kind of according to claim 1, laser ranging divided beam system described in 2,3,4 or 5, which is characterized in that the multilayer is situated between
Plasma membrane is coated with multilayer dielectric film in the substrate of mirror surface, and the multilayer dielectric film is by a variety of different media through matching thickness, the number of plies
It is constituted with collocation order, which reflects the light of a certain part wavelength, and the light transmission of other part or half reflection
Half transmitting.
7. a kind of laser ranging divided beam system according to claim 6, which is characterized in that the reflection of the part reflective semitransparent film
The ratio of rate and transmissivity is R/T=1:1 or R/T=3:7.
8. a kind of laser ranging divided beam system according to claim 7, which is characterized in that the liquid crystal LCD display tool
There are double LCD display functions, red, black or other colors display switchings may be implemented, to reach in different ambient light intensities
It is lower to improve the function of displaying contrast, increase the comfort and working efficiency of user.
9. a kind of laser ranging divided beam system according to claim 8, which is characterized in that the multilayer dielectric film is in mirror
The film layer of following multilayer dielectricity is plated in the substrate in face:
G(HL)p(LH)pA
H, L in formula --- optical thickness are the high and low refractive index film layers of 1/4 wavelength；
The substrate of G --- mirror surface；
A --- air；
p——1、2、3……。
10. a kind of laser ranging divided beam system according to claim 9, which is characterized in that the number of plies p=of multilayer dielectric film
2。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109387847B (en) * | 2018-09-21 | 2023-08-04 | 刘云坤 | Optical beam splitting system of laser ranging telescope |
| CN111257899A (en) * | 2020-01-09 | 2020-06-09 | 广州博冠光电科技股份有限公司 | Optical system of laser ranging telescope |
| CN111609830B (en) * | 2020-05-18 | 2022-08-12 | 广州博冠光电科技股份有限公司 | Erect image coaxial optical system and binocular laser ranging telescope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1069442A2 (en) * | 1999-07-15 | 2001-01-17 | Leica Camera AG | Prism system for image reversal in a visual observation path |
| CN104297742A (en) * | 2014-06-24 | 2015-01-21 | 金华市蓝海光电技术有限公司 | Laser ranging beam-splitting system |
| CN105445942A (en) * | 2014-08-19 | 2016-03-30 | 信泰光学(深圳)有限公司 | Distance measuring instrument and light splitting and combining prism device thereof |
-
2017
- 2017-08-30 CN CN201710762828.4A patent/CN107329277B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1069442A2 (en) * | 1999-07-15 | 2001-01-17 | Leica Camera AG | Prism system for image reversal in a visual observation path |
| CN104297742A (en) * | 2014-06-24 | 2015-01-21 | 金华市蓝海光电技术有限公司 | Laser ranging beam-splitting system |
| CN105445942A (en) * | 2014-08-19 | 2016-03-30 | 信泰光学(深圳)有限公司 | Distance measuring instrument and light splitting and combining prism device thereof |
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