CN100483171C - Lens fixing method - Google Patents
Lens fixing method Download PDFInfo
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- CN100483171C CN100483171C CNB2006100794730A CN200610079473A CN100483171C CN 100483171 C CN100483171 C CN 100483171C CN B2006100794730 A CNB2006100794730 A CN B2006100794730A CN 200610079473 A CN200610079473 A CN 200610079473A CN 100483171 C CN100483171 C CN 100483171C
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- prism
- face
- resettlement section
- position adjustments
- lens
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Abstract
This invention posts a kind of prism fixation method, which inserts the prism (37) in the loading stage (82) from the placket of upper drawtube (36) basis, and makes the plane (36f) of upper drawtube (36) and the datum plane (81a) of the clamp main body (81) touch. After making the plane(87a) of orientation clamp(87) and the incidence plane (37a) of prism (37) touch, you should move the orientation clamp(90) until the edge line (90a) touches the reflect plane (37a) of prism (37). In the moving process the touching plane (90b) of orientation clamp (90) should push the side plane (36g). The prism (37) and the upper drawtube (36) could be oriented if the edge line (90a) of orientating clamp (90) touched the reflect plane (37c) of prism (37). Thereafter, you should fix the prism (37) and the upper drawcube (36). Therefore you can assemble the prism and other optical system as a high resolution but bearing no relation with the components resolution of drawtube itself.
Description
Technical field
The present invention relates to for example prism of right-angle prism and so on is fixed on the method for the lens barrel that is built in Electrofax, video camera and silver salt video camera.
Background technology
Generally, the favourable usefulness of the video camera of the Pu Jiing video camera of image mechanism to making a video recording of ccd image sensor and so on for example, so-called digital camera by the body image that is taken of image pickup optical system imaging.Recently, the digital camera of style miniaturization and style slimming has become main flow.This digital camera, has so-called dioptric system, it utilizes prism and catoptron, make the body light that is taken that is launched into along primary optic axis, to the second optical axis direction refraction vertical, thereby make the above-mentioned body light imaging on the imaging surface that is disposed at the ccd image sensor on second optical axis that is taken with primary optic axis.In addition, in having the digital camera of dioptric system, also developed the digital camera that has following optical zoom function, that is: utilized drive source to make and help the optical system of zoom to move, thereby zoom ratio is changed.
Situation for this optical system, as the method that prism is positioned lens barrel, usually consider, when for example prism being fixed in lens barrel with bonding agent, use spring the reference field of prism to be pressed against on the reference field of lens barrel (patent documentation 1), perhaps install on the lens barrel support recess is set, and the bight of prism is inserted under the state of this support recess, utilize spring that prism is pressed against prism and install on the lens barrel (patent documentation 2) at prism.
Utilizing this spring prism to be positioned under the situation of lens barrel,, then having the problem that causes the prism dislocation because of the deadweight of prism etc. if the elastic force of spring changes with age and goes down.As the method that addresses this is that, usually consider, for example on the lens barrel prism support portion is being set, and with spring with the prism ejection after virtual portfolio under the state of lens barrel, regulate described prism support portion and make the bearing surface be located at below the prism and prism support portion butt after carry out formally fixing (patent documentation 3).Thus, can carry out fixing reliably.
(patent documentation 1) special fair 5-No. 35845 communiques
No. 3603481 communique of (patent documentation 2) special permission
(patent documentation 3) practical new case is logined communique No. 2566833
Recently, for the reduction of the manufacturing cost of digital camera and the reasons such as lightweight of Digital Video, generally be assembled with the lens barrel of above-mentioned prism and lens etc. by the resin forming product manufacturing.Yet, for the situation that lens barrel is formed by resin forming product, in by each lens barrel self, there is uneven error range with a collection of manufacturing, in addition, owing in each batch manufacturing, there is a uneven error range, therefore under the situation of assembling prism on this each lens barrel etc., its assembly precision variation, its result causes being assembled in the problem that the optical property of the optical system of lens barrel reduces.In addition, even lens barrel self with the high precision manufacturing, because by other member fixed prisms, therefore under the situation of the assembly precision difference of other members, need carry out the position adjustments of prism etc., cumbersome.
Summary of the invention
The present invention proposes for solving above-mentioned problem, and its purpose is for providing a kind of fixing means of prism, irrespectively can assemble prism accurately with the member precision of lens barrel self.
The fixing means of prism of the present invention, prism with the body light right angle refraction that is taken after the incident, be positioned to keep in the frame, described maintenance frame has: the prism resettlement section of accommodating this prism, be used for described prism is inserted the insertion mouth of prism resettlement section, and the bearing surface that is used for and assembles other fixing member butts, it is characterized in that, on the anchor clamps of reference field with described bearing surface butt, so that after the light entrance face of the described prism mode vertical with described reference field keep described prism, with the inside of described prism from described insertion mouthful insertion prism resettlement section, and be connected in the bearing surface of described maintenance frame under the state of reference field of described anchor clamps, the prism that is contained in described prism resettlement section is engaged be fixed in described maintenance frame.
In addition, it is characterized in that described prism is a right-angle prism, described prism utilization other two faces except light entrance face, fully reflecting surface and light emergence face engage and are fixed on the described maintenance frame.
In addition, it is characterized in that when the bearing surface with described maintenance frame was connected to the reference field of described anchor clamps, the internal face of described prism and described prism resettlement section was in contactless state.
In addition, it is characterized in that, be connected to the reference field of described anchor clamps at bearing surface with described maintenance frame after, carry out the location of prism with respect to described maintenance frame.
In addition, it is characterized in that described anchor clamps have: jig main body, it has mounting portion, and described mounting portion is so that the light entrance face of described prism mode mounting this prism vertical with described reference field; First align member, itself and the light entrance face butt that is inserted in the prism of described prism resettlement section; Second align member, it is from the side that constitutes described prism resettlement section, be inserted into the opening that is provided with on the side of the fully reflecting surface face-off of described prism, and with the fully reflecting surface butt of described prism.
In addition, it is characterized in that described prism is a right-angle prism, described prism utilization other two faces except light entrance face, fully reflecting surface and light emergence face engage and are fixed on the described maintenance frame.
In addition, it is characterized in that when the bearing surface with described maintenance frame was connected to the reference field of described anchor clamps, the internal face of described prism and described prism resettlement section was in contactless state.
In addition, it is characterized in that, be connected to the reference field of described anchor clamps at the bearing surface that makes described maintenance frame after, carry out the location of prism with respect to described maintenance frame.
In addition, it is characterized in that described anchor clamps have: jig main body, it has mounting portion, and described mounting portion is so that the light entrance face of described prism mode mounting this prism vertical with described reference field; First align member, itself and the light entrance face butt that is inserted in the prism of described prism resettlement section; Second align member, it is from the side that constitutes described prism resettlement section, be inserted into the opening that is provided with on the side of the fully reflecting surface face-off of described prism, and with the fully reflecting surface butt of described prism.
In addition, it is characterized in that, push the light entrance face of described prism, make the fully reflecting surface of this prism be connected to described second align member by making described first align member.
In addition, it is characterized in that described jig main body has the location division of the location of carrying out described maintenance frame.
In addition, it is characterized in that described second align member has the apical grafting face of the fully reflecting surface apical grafting of described prism, and be provided with the position adjustments member of the position that is used to regulate described apical grafting face.
In addition, it is characterized in that described position adjustments member is simultaneously as stop block, described stop block at the apical grafting face that makes described second align member when the direction of inserting described prism resettlement section is slided, by being connected to the side wall surface of being located at described jig main body, prevent the slip of second align member.
In addition, it is characterized in that, the position adjustments part mounting that the described prism of correspondence is provided with is in described mounting table respectively, to prevent that retainer mounting that the position adjustments part of mounting in mounting table moves is in described jig main body, described position adjustments part is connected to described retainer, after carrying out the location of position adjustments part thus, when described apical grafting face is connected to the described position adjustments part that is positioned, carry out the position adjustments of the described apical grafting face of described position adjustments member, make described position adjustments member be connected to the side wall surface of described jig main body.
Fixing means according to prism of the present invention, at a prism with the body light right angle refraction that is taken after the incident, be positioned to keep in the fixing means in the frame, described maintenance frame has: the prism resettlement section of accommodating this prism, be used for described prism is inserted the insertion mouth of prism resettlement section, and with the bearing surface of assembled fixing other member butts, wherein, on the anchor clamps of the reference field that has described bearing surface institute butt, after keeping described prism in the mode vertical with respect to described reference field, from described mouthful the inside of inserting with described prism insertion prism resettlement section, and be connected in the bearing surface of described maintenance frame under the state of reference field of described anchor clamps, the prism joint that is contained in described prism resettlement section is fixed in described maintenance frame, therefore will be when keeping the manufacturing of frame the position of high-precision processing, only be defined in other members of assembling time institute and get final product by the bearing surface of butt, thus the cost can control the manufacturing of maintenance frame the time.
In addition, because described prism is a right-angle prism, described prism, utilization other two faces except light entrance face, fully reflecting surface and light emergence face, be fixed in described maintenance frame and be engaged, therefore in the prism that is accommodated in the prism resettlement section, can eliminate the shake of the optical axis direction of the light that incides light entrance face, and the shake of the optical axis direction of the light that penetrates from light emergence face.
In addition, because when the bearing surface with described maintenance frame is connected to the reference field of described anchor clamps, the internal face of described prism and described prism resettlement section is in contactless state, therefore, compare with the situation that under the state of the internal face that is connected to the prism resettlement section, the prism joint was fixed in the prism resettlement section like that in the past, can accurately prism be engaged and be fixed in the prism resettlement section.In addition, has following advantage, promptly as long as make bearing surface, the precision that needn't process the internal face of prism resettlement section accurately accurately.
In addition, owing to after the bearing surface with described maintenance frame is connected to the reference field of described anchor clamps, carry out the location of prism, therefore can easily carry out prism with respect to the location that keeps frame with respect to described maintenance frame.
In addition, described anchor clamps have: jig main body, and it has mounting portion, and described mounting portion is so that the light entrance face of described prism mode mounting this prism vertical with respect to described reference field; First align member, itself and the light entrance face butt of the prism that inserts described prism resettlement section; Second align member, it is from the side that constitutes described prism resettlement section, insert with the opening that is provided with on the side of the fully reflecting surface of described prism face-off, and fully reflecting surface butt with described prism, therefore, as long as the fully reflecting surface of prism is supported in the fixed position, just can carries out the location of prism self accurately.
In addition,, and the fully reflecting surface of this prism is connected to described second align member, therefore can carries out the location of prism accurately because push the light entrance face of described prism by described first align member.
In addition, because described jig main body has the location division of the location of carrying out described maintenance frame, the location that therefore in the time will keeping the frame mounting, can keep frame in jig main body, therefore owing to the positioning instant that only carries out prism can, so the operating efficiency can improve fixed prism the time.
In addition, described second align member, have the apical grafting face of the fully reflecting surface apical grafting of described prism, and be provided with the position adjustments member of the position that is used to regulate described apical grafting face, therefore, engage at the prism that will be contained in the prism resettlement section and to be fixed under the situation of prism resettlement section, can prevent to incide the shake of optical axis direction of the light of light entrance face, and the shake of the optical axis direction of the light that penetrates from light emergence face.Therefore, can carry out prism accurately with respect to the location that keeps frame.
In addition, described second align member can be along sliding with the perpendicular direction of the light entrance face of described prism, described position adjustments member is simultaneously as stop block, when described stop block slides along the direction of inserting described prism resettlement section at the apical grafting face that makes described second align member, by being connected to the side wall surface of being located at described jig main body, and prevent the slip of second align member, the dimensional variations of the prism that is produced in the time of therefore, can changing the manufacturing batch (lot) of for example prism is regulated accordingly.
In addition, the position adjustments part mounting that will be provided with according to described prism is in described mounting table respectively, to prevent that retainer mounting that the position adjustments part of mounting in mounting table moves is in described jig main body, described position adjustments part is connected to described retainer, after carrying out the location of position adjustments part thus, when described apical grafting face is connected to the described position adjustments part that is positioned, carry out the position adjustments of the described apical grafting face of described position adjustments member, make described position adjustments member be connected to the side wall surface of described jig main body, therefore can correctly regulate the position of the bearing surface of second abutting member.
Description of drawings
Fig. 1 is the stereographic map of outward appearance of the front of expression digital camera.
Fig. 2 is the stereographic map of outward appearance of the back of expression digital camera.
Fig. 3 is the stereographic map of structure of the front face side of expression lens devices.
Fig. 4 is the sectional view of the structure of expression lens devices.
Fig. 5 is the sectional view when utilizing anchor clamps that prism is positioned the top lens barrel.
Fig. 6 is the sectional view when utilizing anchor clamps that prism is positioned the top lens barrel.
Fig. 7 is the front elevation that expression engages an example when being fixed on the prism of locating on the top maintenance framework.
Fig. 8 represents with second lens combination stereographic map of an example when being assembled in the top lens barrel.
Fig. 9 represents with first lens stereographic map of an example when being assembled in the top lens barrel.
Figure 10 is the stereographic map of expression structure of employed anchor clamps when prism is fixed in the prism resettlement section of top lens barrel.
Figure 11 is the stereographic map of the structure of the anchor clamps of expression adjusting position when regulating position with the locating surface of anchor clamps.
The sectional view of locating surface peripheral structure when Figure 12 is the position adjustments of expression locating surface.
Figure 13 is the sectional view when the top lens barrel is positioned anchor clamps.
Figure 14 is the sectional view when prism is positioned at the top lens barrel of locating on the anchor clamps.
Among the figure: 2-digital camera, 20-lens devices, 31-upper unit, 32-lower unit, 33-shutter unit, 36-top lens barrel (maintenance frame), 36a-prism resettlement section, 36c-through hole (opening), 36e-opening (inserting mouth), 36f-bearing surface, 37-prism, 37a-light entrance face, 37b-light emergence face, 37c-fully reflecting surface, 80,100-anchor clamps, 81,101-jig main body, 81a, 109a-reference field, 82,110-mounting table, 87-location anchor clamps (first align member), 90-location anchor clamps (second align member), 102-align member (second align member), 103-pushing member (first align member), 107d-outside wall surface (side wall surface), 113,114-register pin (location division), 121a-apical grafting face, 126-bolt (position adjustments member), 135-size block (retainer), 140-round bar (position adjustments part).
Embodiment
Fig. 1 is the stereographic map that the front of digital camera of the present invention is implemented in expression.Fig. 2 is the stereographic map of the back of expression digital camera shown in Figure 1.In the front of digital camera 10, the top flashlamp that is provided with illumination flash light sends portion in the central, is provided with photography opening 14 in its side.First lens 18 that are built in the lens devices 16 of digital camera 10 reveal from photography opening 14 and show.Power knob 20 and release-push 22 are set in the above.By shutter (release) button 22 is carried out pressing operation, carry out the still frame photography of a frame, and in the storage card that is installed on digital camera 10 (not shown go out), store by this photography acquired image data.
As shown in Figure 2, at digital camera 10 back sides, dispose: LCD (LCD) 26; Zoom operation button 28, it makes zoom type lens devices 16 zooms (becoming doubly) into taking the photograph distally and wide-angle side; And cursor button 30, it carries out the various operations and the setting of digital camera 10.By operating cursor button 30 and indicate, can carry out the various settings such as opening/close that switching, the flashlamp of image pickup mode and replay mode send while observing menu that LCD26 go up to show.
LCD26 under photograph mode, will show that as the general image of animation the user can know camera coverage by observing this comprehensive image by the body image that is taken that first lens 18 obtain.In addition, under replay mode, can select to be recorded in the view data of storage card, on LCD26, show.
Described lens devices 16 as shown in Figure 3 and Figure 4, has the dioptric system that uses prism 37.By using this dioptric system, the thickness of thinning digital camera 10.Lens devices 16 is made of upper unit 31, lower unit 32 and the shutter unit 33 that is assembled between these each unit, and they are assembled into one by screw 34 grades.
This top lens barrel 36 has its bottom surface by the space 36d of opening.This space 36d is connected with prism resettlement section 36a, fixes outside the second lens combination G2 on the 36d of this space, and the 3rd lens combination G3 also is installed.Below, with space 36d, being called entirety of lens package space 36d, the bottom surface of this top lens barrel 36 is inserted prism 37 by opening from this opening portion 36e (with reference to Fig. 5).The area of this opening portion 36e (below, claim opening 36e) forms wideer than the area of the light exit face 37b of prism 37.
Prism 37 by having light entrance face 37a, light emergence face 37b and fully reflecting surface 37c, and is made of light entrance face 37a and the perpendicular prism of light emergence face 37b.This prism is accommodated in prism resettlement section 36a.Prism 37 is configured to light entrance face 37a and clips shadow shield 42, with first lens 18 towards.This prism 37 utilizes fully reflecting surface 37c, makes the body light that is taken (light beam of the optical axis L 1) total reflection of inciding light entrance face 37a from first lens 18, and from light emergence face 37b, as the light beam ejaculation of optical axis L 2.
The second lens combination G2 is made of two lens 45,46, and is supported on lens mount 50.Between this second lens combination G2 and prism 37, metallic shadow shield 43 is set.The second lens combination G2 and metallic shadow shield 43 insert from opening (the inserting mouth) 36e of top lens barrel equally with lens 37, and press the order insertion of shadow shield 43, the second lens combination G2 successively.So, shadow shield 43 by the state of lens 45 clampings of the light emergence face 37b of prism 37 and the second lens combination G2 under, lens mount 50 engages and is fixed in top lens barrel 36.Thus, the second lens combination G2 is positioned with respect to prism 37.
The 3rd lens combination G3 is made of three lens 52～54.These lens are supported by lens holder 55.The optical axis L 2 along lens devices 16 moves by not shown zoom motor for this lens holder 55, and carries out zoom.The 4th lens combination G4 is made of a slice lens 58.These lens 58 assembled lens mounts 59 that are fixed in, lens mount 59 is with the mode of the opening 36e that covers top lens barrel 36, the assembled bottom of being fixed in top lens barrel 36.In addition, when the bottom of top lens barrel 36 is fixed in 59 assemblings of this lens mount, the face 36f of the top lens barrel 36 of lens mount 59 butts is described as bearing surface 36f.
Next, in above-mentioned top lens barrel 36, first embodiment when using Fig. 5～Fig. 7 that use anchor clamps 80 joint fixed prisms 37 are described.At first, as shown in Figure 5, with the mounting table (mounting portion) 82 of prism 37 mountings in the reference field 81 that is fixed in jig main body 81.At this moment, the light emergence face 37b of prism 37 is connected to the mounting surface 82a of mounting table 82, and makes prism 37 butts be located at the spacer 31b of mounting surface 82a.Thus, prism 37 is positioned with respect to mounting table 82.In addition, therefore mounting surface 82a is supported in the light entrance face 37a of the prism 37 of mounting surface 82a owing to formed by the face parallel with respect to the reference field 81a of jig main body 81, becomes the face vertical with respect to reference field 81a.In addition, when prism 37 is positioned mounting table 82, considers to make prism 37 absorption to support, but also can prism 37 is supported on the mounting surface 82a.
After prism 37 is supported in the mounting surface 82a of mounting table 82, upper lens 36 is moved along A direction among Fig. 5, and insert prism 37 from the opening 36e of the bottom of being located at top lens barrel 36.So, the bearing surface 36f of top lens barrel 36 and the reference field 81a of jig main body 81 are connected.As shown in Figure 6, in the state that the reference field 81a of bearing surface 36f that makes top lens barrel 36 and jig main body 81 connects, inserting the prism 37 of prism resettlement section 36a and the internal face of prism resettlement section 36a becomes non-contacting state.In addition, in this state, prism 37 is location on top lens barrel 36 not.
Under the state of the inside of the prism resettlement section 36a that prism 37 is contained in top lens barrel 36, the operation first operation dial 85, and the location is moved along B direction among Fig. 6 with anchor clamps (first align member) 87 by first adjusting mechanism 86.Then, the operation first operation dial 85 is until locating the light entrance face 37a (two dot-and-dash lines among Fig. 6) that is connected to prism 37 with the bearing surface 87a of anchor clamps 87.Thus, prism 37 is located at the spacer 82b of mounting table 82 and the bearing surface 87a clamping that anchor clamps 87 are used in the location.
Operate second dial 88 and by second adjusting mechanism 89 location with anchor clamps (second align member) 90 along in Fig. 6 C direction moved thereafter.Then, the operation first operation dial 85 is until making the location be connected to the fully reflecting surface 37c (two dot-and-dash lines among Fig. 6) of prism 37 with the crest line 90a of anchor clamps 90.
In addition, if will locate the fully reflecting surface 37c that is connected to prism 37 with the crest line 90a of anchor clamps 90, then locate bearing surface 90b with anchor clamps 90 and be connected on the wall 36g of through hole 36c of the sidewall 36b that is located at prism resettlement section 36a.At this moment, move with the C direction of anchor clamps 90 in Fig. 6 the location, and move with anchor clamps 90 pushings the location that upper lens 36 is moved.So when the location was connected to the bearing surface 37c of prism 37 with the crest line 90a of anchor clamps 90, prism 37 was located with respect to top lens barrel 36.In addition because prism 37 is by the spacer 82b clamping of location with anchor clamps 87 and mounting table 82, even so prism 37 be subjected to locating pushing with anchor clamps 90, prism 37 does not also move.As shown in Figure 7, carrying out under the state that prism 37 locatees with respect to prism resettlement section 36a, the opening 95 from the side wall surface of being located at prism resettlement section 36a injects for example UV cement, and prism 37 is fixed in prism resettlement section 36a.Because the cement between two faces except light entrance face 37a, light emergence face 37b and fully reflecting surface 37c by being infused in prism 37 and the internal face of prism resettlement section 36a and prism 37 is fixed in top lens barrel 36, so can not make the optical property reduction of prism 37.
If prism 37 joints are fixed in prism resettlement section 36a, then the location is moved along D direction among Fig. 6 with anchor clamps 87 by operating the first operation dial 85.Equally, by operate second the operation dial 88 but the location move along E direction among Fig. 6 with anchor clamps 90.After these location are moved with anchor clamps, top lens barrel 36 is taken off from jig main body 81.
As shown in Figure 8, the lens mount 50 that supports shadow shield 43, the second lens combination G2 opening 36e from the bottom of being located at top lens barrel 36 is inserted., make shadow shield 43 be connected to the light emergence face 37b of prism 37, and be connected under the state of shadow shield 42, the lens mount 50 of the second lens combination G2 is fixed in top lens barrel 36 in light entrance face with the lens 45 of the second lens combination G2 thereafter.After lens mount 50 is fixed in top lens barrel 36, the lens holder 55 that supports the 3rd lens combination G3 is assembled in top lens barrel 36, and will supports the bottom of being fixed in top lens barrel 36 as the lens mount 59 of the lens 58 of the 4th lens combination G4.At this moment, the bearing surface 36f of top lens barrel 36 is connected on the lens mount 59.In addition since as the lens 58 of the 4th lens combination G4 with respect to lens mount 59 location, therefore the optical axis L 2 of the light that penetrates from the light emergence face 37b of lens 37 lens that are not assembled in top lens barrel 36 are shaken.
After the second lens combination G2 is assembled in top lens barrel 36, shadow shield 42, first lens 28 are loaded on top lens barrel 36 with the der group of shadow shield 43, first lens 18.When this is assembled, under the state on the light entrance face 37a that shadow shield 42 is connected to prism 37, first lens 18 are connected to shadow shield 42.Under this state, the lens mount 40 that supports first lens 18 is assembled in upper lens 36.In addition, because the back of first lens 18, forms by the plane vertical with the optical axis L 1 of first lens 18, therefore so that the optical axis L 1 of first lens 18 mode vertical with the light entrance face 37a of prism 37 first lens 18 are located with respect to prism 37.Thus, even under the member precision of top lens barrel 36 situation on the low side, can be that benchmark is assembled other lenses with the prism 37 that is fixed in top lens barrel 36, therefore can not make the optical property variation of lens devices yet.At last, finish upper unit 31 by what assembling made motor that lens holder 55 moves up and down.Upper unit after finishing is assembled with shutter unit 33 and lower unit 32, thereby is finished lens devices 16.
In the first embodiment, make the location be connected to the fully reflecting surface of prism with the crest line of anchor clamps, and carry out the location of top lens barrel with respect to prism, but be not limited thereto, for example, also can on locating, the apical grafting face be set, and this is connect the fully reflecting surface that face is connected to prism surely, thereby carry out the location of top lens barrel with respect to prism with anchor clamps.
Below, illustrate by the fully reflecting surface that makes the apical grafting face be connected to prism and carry out the top lens barrel with respect to the embodiment of the situation of the location of prism (below, second embodiment).At this moment, keeping on the frame 36, be provided with the apical grafting face 121a that is provided as align member 102 described later and insert the through hole of wearing, this through hole has the through hole of the shape different with first embodiment, therefore for the top lens barrel, additional same-sign (symbol 36) and illustrating is about the additional symbol (symbol 36j) different with first embodiment of through hole and illustrate.
As shown in figure 10, anchor clamps 100 are made of jig main body 101, align member 102, pushing member 103.Jig main body 101, by the base plate 106 that becomes basal disc and with practise physiognomy to the mode side plate 107,108 of being located at the both ends of base plate 106 constitute.These base plates 106 and side version 107,108 are set to orthogonal, and these plates are set to one.The substantial middle place of 106a on base plate 106 is provided with pedestal 109 and mounting table (mounting portion) 110.
In two sides of pedestal 109 projection (boss) 111,112 is set, above the projection 111,112, stands respectively and establish positioning pin (location division) 113,114 at these.This positioning pin 113,114 by being inserted into opening 361, the 36m (with reference to Figure 13) that is located at top lens barrel 36, and makes top lens barrel 36 with respect to mounting table 101 location during in jig main body 101 top lens barrel 36 mountings.
On the side plate 107 of this jig main body 101, be provided with for the spacer 121 of align member described later (second align member) 102 and insert the opening 107a that wears, and on side plate 108, be provided with for the axial region 132 of pushing member (first align member 1) 103 and insert the opening 108a that wears.In addition, the central shaft of the central shaft of opening 107a and opening 108a forms in the mode consistent with the optical axis of the light entrance face 37a of the prism 37 of mounting on mounting table 110 respectively.In addition, symbol 107b, 107c are to be located at the threaded hole that the screw 127,128 of align member 102 screws togather.
On the other hand, on the support chip 122 vertical, form threaded hole 123,124,125 with spacer 121.In these threaded holes, at threaded hole 123 internal thread joint bolts (position adjustments member) 126, the front end of this bolt 126 is outstanding towards the direction identical with spacer 121.This bolt 126 is provided with for stoping moving of spacer 102.For example, if spacer 121 is inserted the opening 107a of side plates 107, be connected to outside wall surface (side wall surface) 107d of side plate 107 until the front end face 126a of bolt 126, then the mobile of align member 102 is prevented from.Thus, bolt 126 is as arrestment mechanism performance function.In addition,, determine the slotting amount of wearing of spacer 121, promptly determine the position of apical grafting face 121a, therefore when for example regulating the position of apical grafting face 121a, regulate the overhang of the leading section of bolt 126 according to the overhang of the leading section of bolt 126.In addition, symbol the 127, the 128th, screw, these screws 127,128 to be combined in the state of threaded hole 124,125 by screw thread, are supported on align member 102 respectively.These screws 127,128 when align member 102 is fixed in jig main body 101, combine with threaded hole 107b, the 107c screw thread of the side plate 107 of being located at jig main body 101 respectively.
Pushing member 103, the pushing portion 131 and the slotting axial region 132 of wearing the opening 108a of side plate 108 that are pushed by the light entrance face 37a with prism 37 constitute.Pushing portion 131 is made of rectangular shape roughly, becomes the face 131a of an opposite side with the face of having assembled axial region 132, by to constitute to the flexure plane (to call flexure plane 131a in the following text) crooked with the side-prominent mode of axial region 132 opposite.This pushing portion 131 plugs in the disc spring of wearing 133 by axial region 132, and quilt is to the ejection of the S of Figure 13 direction, thereby the pushing mounting is in the light entrance face 37a of the prism 37 of mounting surface 110a.At this moment, the light entrance face 37a line of the flexure plane 131a of pushing portion 131 and prism 37 contacts.
Shown in Figure 12 (A), do not have under the situation of apical grafting position adjustments with the outer peripheral face 140a of round bar 140 at for example apical grafting face 121a, because the front end face 126a of bolt 126 is excessively outstanding, therefore, make bolt 126 to the direction rotation of taking out, and reduce the overhang of the front end face 126a of bolt 126 from support chip 122.On the other hand, shown in Figure 12 (B), apical grafting face 121a just is connected to the situation of position adjustments with the outer peripheral face 140a of round bar 140 be connected to the outside wall surface 107d of side plate 107 for the front end face 126a at bolt 126 before, because the overhang of the front end face 126a of bolt 126 is less, therefore make bolt 126 to the direction rotation that is screwed together in support chip 122, and increase the overhang of the front end face 126a of bolt 126.Shown in Figure 12 (C), when the front end face 126a of bolt 126 was connected to the outside wall surface 107d of side plate 107, apical grafting face 121a was connected under the situation of position adjustments with the outer peripheral face 140a of round bar 140, and the adjusting of the overhang of bolt 126 finishes.In addition, position adjustments is used the round bar of the diameter that mates with the size of prism 37 with round bar 140.
If the adjusting of the overhang of bolt 126 finishes, then position adjustments is taken out from jig main body 101 with round bar 140 and size block 135, will push member 103 and be installed on side plate 108.At this moment, owing to disc spring 133 is installed at the axial region 132 of pushing member 103, so the operating personnel will make stop block 145 insert the opening 132a that are arranged in axial region 132 after the outstanding axial region 132 in the outside of side plate 108 draws.Thus, will push member 103 and be supported in assigned position.
In this state so that the mode of the light emergence face 37b of prism 37 and mounting surface 110a butt, with prism 37 mountings in mounting table 110.At this moment, the mounting surface 110a butt of the light emergence face 37b of prism 37 and mounting table 110.After this, make top lens barrel 36 along the P direction of Figure 13 move and mounting in jig main body 101.At this moment, insert at the opening 36e below being located at top lens barrel 36 under the state of prism 37 and mounting table 110, make register pin 113,114 insert through hole 361, the 36m of the bottom that is arranged in top lens barrel 36 respectively, and with top lens barrel 36 mountings in jig main body 101.Thus, the bearing surface 36f of top lens barrel 36, supported under the state with the bearing surface 109a that is connected to pedestal 109.Because the bearing surface 109a of this pedestal 109 is made of the face parallel with mounting surface 110a, so the bearing surface 36f of top lens barrel 36, is supported on the face parallel with the light emergence face 37b of prism 37.In addition, under this state, be inserted in the prism 37 of prism resettlement section 36a, be in the non-contacting state of inwall with prism resettlement section 36a.In addition, be inserted in the prism 37 of prism resettlement section 36a, not with respect to top lens barrel 36 location.
Mounting makes the align member 102 that is assembled in jig main body 101 slide along the Q direction of Figure 13 behind jig main body 101 top lens barrel 36 being located also.Slide by this, the front end of spacer 121 is outstanding to side plate 108.By the slip of this align member 102, with the front end of spacer 121, from the slotting perforation 36j of the sidewall 36b of the prism resettlement section 36a that is located at top lens barrel 36, the inside of inserting prism resettlement section 36a.When this slides,, then stop the slip of align member 102 if be threadedly connected to the outside wall surface 107d that the front end face 126a of the bolt 126 of support chip 122 is connected to side plate 107.At this moment, the position of apical grafting face 121a of being located at the front end of spacer 121 becomes fixed position (with reference to Figure 14).In addition, after the slip of align member 102 stops, using screw 127,128 that align member 102 is fixed in side plate 107.
Under this state, the stop block 145 of inserting the opening 132a of the axial region 132 that is arranged in pushing member 103 is moved and takes out along the R direction among Figure 13.Because the pushing portion 131 of pushing member 103 is subjected to the elastic force of disc spring 133, therefore, then pushes member 103 and slide along S direction among Figure 13 if stop block 145 is taken out.Slide by means of this, the pushing face 131a of the pushing portion 131 of pushing member 103 is connected to by the light entrance face 37a of mounting in the prism 37 of mounting table 110, and pushing prism 37.Though move owing to this pushing makes prism 37, owing in the 36a of prism resettlement section, inserting spacer 121, so the fully reflecting surface 37c of prism 37, be connected to the locating surface 121a (with reference to Figure 14) of the front end of being located at spacer 121.Thus, prism 37 is located by the spacer 121 of align member 102 and the pushing portion 131 of pushing member 103.
In addition, identical with first embodiment, if prism 37 is positioned top lens barrel 36, then inject for example UV cement from the opening 95 of being located at prism resettlement section 36a, prism 37 is engaged be fixed in prism resettlement section 36a (with reference to Fig. 7).At this moment, prism 37 joints are fixed in prism resettlement section 36a, therefore, the body light that is taken that sees through prism are not exerted an influence owing to use the face beyond light entrance face 37a, light emergence face 37b, the fully reflecting surface 37c.
If prism 37 is engaged and is fixed in prism resettlement section 36a, then make pushing member 103 along after the T direction moves among Figure 14, stop block 145 is inserted the opening 132a of axial regions 132, and will push member 103 and be supported in assigned position.After this screw 127,128 is unscrewed, and remove side plate 107 fixing of align member 102 and anchor clamps 101, and align member 102 is slided along U direction among Figure 14.Slide by this, the front end of spacer 121 is from recessing from prism resettlement section 36a.The top lens barrel 36 that will be fixed with prism 37 at last takes off from jig main body 101.In addition, be located at the slotting perforation 36j of top lens barrel 36, by sealings such as seals.
In so being fixed with the top lens barrel 36 of prism 37, same with first embodiment, the lens mount 50 that is supported with shadow shield 43, the second lens combination G2 is fixing.Then, be assembled in the lens installing space 36d of top lens barrel 36 at the lens holder 55 that will be supported with the 3rd lens G3 after, the lens mount 59 that is supported with the lens 58 that become the 4th lens combination G4 is fixed in the bottom of top lens barrel 36.At this moment, the bearing surface 36f of top lens barrel 36 is connected to lens mount 59.In addition, the 4th lens combination G4 is that lens 58 are positioned on lens mount 59, the therefore optical axis L 2 of the light that penetrates from the light emergence face 37b of prism 37, and the lens that are not assembled in top lens barrel 36 are shaken.Thereafter, the shadow shield 42 and first lens 18 are installed on top lens barrel 36 with the order of shadow shield 42, first lens 18.Thus, even for the lower situation of the member precision of top lens barrel 36,, therefore can not make the optical performance degradation of lens devices owing to being that benchmark is assembled other lenses with the prism 37 that is fixed in top lens barrel 36.At last, make CD-ROM drive motor that lens holder 55 moves up and down etc. finish upper unit 31 by assembling.Upper unit 33 after finishing, with lower unit 32 assembling, and finish lens devices 16.
In first embodiment and second embodiment, method as the prism resettlement section that prism is anchored on the top lens barrel, use the UV bonding agent and fixing method though adopt, and need not be confined to this, also can prism be fixed in the resettlement section by hot riveting.
Though in first embodiment and second embodiment, the method that prism is fixed in the top lens barrel has been described, need not be confined to this, the situation that lens is fixed in prism is also passable.
Claims (10)
1, a kind of fixing means of prism, with the prism positioning and fixing of the body light right angle refraction of being taken after the incident in keeping frame, described maintenance frame has: accommodate this prism the prism resettlement section, be used for described prism being inserted the insertion mouth of prism resettlement section and being used for and the bearing surface of assembling other member butts of fixing, it is characterized in that
On the anchor clamps of reference field with described bearing surface butt, so that after the light entrance face of the described prism mode vertical with described reference field keep described prism, with the inside of described prism from described insertion mouthful insertion prism resettlement section, and be connected in the bearing surface of described maintenance frame under the state of reference field of described anchor clamps, the prism that is contained in described prism resettlement section is engaged be fixed in described maintenance frame.
2, the fixing means of prism according to claim 1 is characterized in that,
Described prism is a right-angle prism, and described prism utilization other two faces except light entrance face, fully reflecting surface and light emergence face engage and are fixed on the described maintenance frame.
3, the fixing means of prism according to claim 1 and 2 is characterized in that,
When the bearing surface with described maintenance frame was connected to the reference field of described anchor clamps, the internal face of described prism and described prism resettlement section was in contactless state.
4, according to the fixing means of each described prism in the claim 1～3, it is characterized in that,
Be connected to the reference field of described anchor clamps at the bearing surface that makes described maintenance frame after, carry out the location of prism with respect to described maintenance frame.
5, the fixing means of prism according to claim 4 is characterized in that,
Described anchor clamps have:
Jig main body, it has mounting portion, and described mounting portion is so that the light entrance face of described prism mode mounting this prism vertical with described reference field;
First align member, itself and the light entrance face butt that is inserted in the prism of described prism resettlement section;
Second align member, it is from the side that constitutes described prism resettlement section, be inserted into the opening that is provided with on the side of the fully reflecting surface face-off of described prism, and with the fully reflecting surface butt of described prism.
6, the fixing means of prism according to claim 5 is characterized in that,
By making described first align member push the light entrance face of described prism, make the fully reflecting surface of this prism be connected to described second align member.
7, according to the fixing means of claim 5 or 6 described prisms, it is characterized in that,
Described jig main body has the location division of the location of carrying out described maintenance frame.
8, according to the fixing means of each described prism in the claim 5～7, it is characterized in that,
Described second align member has the apical grafting face of the fully reflecting surface apical grafting of described prism, and is provided with the position adjustments member of the position that is used to regulate described apical grafting face.
9, the fixing means of prism according to claim 8 is characterized in that,
Described position adjustments member is simultaneously as stop block, described stop block at the apical grafting face that makes described second align member when the direction of inserting described prism resettlement section is slided, by being connected to the side wall surface of being located at described jig main body, prevent the slip of second align member.
10, the fixing means of prism according to claim 9 is characterized in that,
The position adjustments part mounting that the described prism of correspondence is provided with is in described mounting table respectively, to prevent that retainer mounting that the position adjustments part of mounting in mounting table moves is in described jig main body, described position adjustments part is connected to described retainer, after carrying out the location of position adjustments part thus, when described apical grafting face is connected to the described position adjustments part that is positioned, carry out the position adjustments of the described apical grafting face of described position adjustments member, make described position adjustments member be connected to the side wall surface of described jig main body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005134077 | 2005-05-02 | ||
| JP2005134077 | 2005-05-02 | ||
| JP2005253288 | 2005-09-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1858628A CN1858628A (en) | 2006-11-08 |
| CN100483171C true CN100483171C (en) | 2009-04-29 |
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ID=37297547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100794730A Expired - Fee Related CN100483171C (en) | 2005-05-02 | 2006-05-08 | Lens fixing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100483171C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633136B (en) * | 2009-07-28 | 2011-05-04 | 赛特莱特（佛山）塑胶制品有限公司 | Clamp for manufacturing needle of cube-corner prism |
| JP5054230B2 (en) * | 2009-09-03 | 2012-10-24 | オリンパスメディカルシステムズ株式会社 | Imaging unit |
| TWI486624B (en) * | 2010-05-13 | 2015-06-01 | Hon Hai Prec Ind Co Ltd | Lens, lens module and imaging device having the same |
| JP2013167818A (en) * | 2012-02-16 | 2013-08-29 | Olympus Imaging Corp | Imaging apparatus |
| CN102928954B (en) * | 2012-09-27 | 2015-02-11 | 上海兆九光电技术有限公司 | Tool for gluing prisms |
| KR102400658B1 (en) * | 2015-07-27 | 2022-05-20 | 엘지이노텍 주식회사 | Camera Module |
| DE102017122279A1 (en) * | 2017-09-26 | 2019-03-28 | Olympus Winter & Ibe Gmbh | Prism holder of a surgical instrument and surgical instrument |
| CN107688221A (en) * | 2017-09-30 | 2018-02-13 | 中山市弗图艾力克光电科技有限公司 | A kind of prism structure of full shot |
| CN114114603B (en) * | 2021-11-26 | 2024-05-14 | 中国科学院微电子研究所 | Adjusting device and adjusting method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2566833Y2 (en) * | 1992-07-08 | 1998-03-30 | 株式会社ニコン | Prism fixing device |
-
2006
- 2006-05-08 CN CNB2006100794730A patent/CN100483171C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2566833Y2 (en) * | 1992-07-08 | 1998-03-30 | 株式会社ニコン | Prism fixing device |
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| CN1858628A (en) | 2006-11-08 |
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