CN102053328A - Lens device - Google Patents
Lens device Download PDFInfo
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- CN102053328A CN102053328A CN2010105017710A CN201010501771A CN102053328A CN 102053328 A CN102053328 A CN 102053328A CN 2010105017710 A CN2010105017710 A CN 2010105017710A CN 201010501771 A CN201010501771 A CN 201010501771A CN 102053328 A CN102053328 A CN 102053328A
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- lens
- force application
- stationary magazine
- magazine creel
- application part
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Abstract
The invention provides a lens device, which can simply and correctly assemble and fix a lens. The rear end part of a front fixing cylinder (16) is embedded in the inner periphery of a second imbedding part (48) which forms the front end of a rear fixing cylinder (18), and the front fixing cylinder (16) can be connected to the same axle of the rear fixing cylinder (18). The lens maintenance frame (F3) of a third lens (L3) is accommodated in the second imbedding part (48), and a force application ring (122) is overlapped on the lens maintenance frame (F3). If the front fixing cylinder (16) is connected to the rear fixing cylinder (18), a pressing part (140) disposed at the rear end part of the front fixing cylinder (16) presses the spring piece (126) of the force application ring (122). As a result, the lens maintenance frame (F3) of the third lens (L3) is pressed tightly to the bottom of the second imbedding part (48) by the force application ring (122), and is fixed to an assigned position.
Description
Technical field
The present invention relates to a kind of lens devices, relate in particular to the lens devices that lens are installed at lens shank internal fixation.
Background technology
Dispose successively 4 groups of lens devices of fixed lens, mobile lens, fixed lens, mobile lens from the thing side, the 1st group of fixed lens and the 3rd group of fixed lens fixedly are assembled in the stationary magazine creel that constitutes the lens shank.The 3rd group of fixed lens because be disposed at the 2nd group of mobile lens and the 4th group of mobile lens between, so the problem that is difficult to assemble is arranged.Therefore, the known stationary magazine creel of cutting apart before and after having links both method (patent documentation 1 etc.) after the end face of a side stationary magazine creel is assembled the 3rd group of fixed lens.At this moment, the 3rd group of fixed lens assembled its lens holding frames by the end face that a plurality of positions is tightened in a side stationary magazine creel.
Patent documentation 1: the Jap.P. spy opens the 2007-148021 communique
Yet, be assembled in stationary magazine creel if tighten lens holding frames, have lens holding frames and produce deflection in the fastening part of screw thread, produce the skew of optical axis or the shortcoming of inclination.
Summary of the invention
The present invention finishes in light of this situation, and its purpose is to provide can be simply and correctly assemble the lens devices of fixed lens.
Technical scheme 1 related invention is to realize described purpose, and following lens devices is provided, and it is characterized in that possessing: the back tube; Flange portion is formed at described back front end peripheral part; Recess is formed at perimembranous in the described back front end; Placket, rearward end be embedded in described recess and be installed on the front end of described back tube coaxial on; A plurality of binding threaded holes are formed at the rear end face of described placket; A plurality of binding through holes, with described each link with threaded hole corresponding and be formed at described flange portion; A plurality of binding screws, with respect to the described back tube that described placket has been installed, pass described each link be tightened against with through hole described each link and use threaded hole, be fixed in described placket with after described thus; Lens holding frames keeps lens in interior perimembranous, is embedded in the inboard of described recess and is disposed at the inboard of described back tube; Reference field forms in the rear end of described lens holding frames and the light shaft positive cross ground of described lens; Abutting part is formed in the described recess, and butt is disposed at the described reference field of the described lens holding frames in the described recess, and the axle with respect to after described vertically keeps described lens holding frames; The force application part of ring-type has a plurality of spring leafs of displacement vertically at peripheral part, is overlapped on the described lens holding frames that is configured in the described recess to be disposed in the described recess; The press section, described spring leaf corresponding to described force application part forms a plurality of in the rear end of described placket, when described placket being installed on described back tube, push the described spring leaf that is disposed at the described force application part in the described recess, make the described reference field of described lens holding frames be resisted against described abutting part, thereby described lens holding frames is fixed in the described recess.
Assembling lens in the following order among the present invention.At first, the recess inboard that the lens holding frames that keeps lens is embedded into perimembranous in the front end that is formed at the back tube.Secondly, overlay configuration force application part on the lens holding frames in being disposed at recess.Secondly, the rearward end with placket is embedded into recess.Secondly, use threaded hole to linking to pass to link with screw and be tightened against to link with through hole, link thus placket and after tin.If link placket and back tube with linking with screw, the press section that then is formed at the rearward end of placket just is connected to the spring leaf of force application part, and tube is pushed force application part towards the back.Its result, lens holding frames is by the force application part tube side application of force backward, and the reference field that is formed at its rear end is resisted against abutting part.Thus, with respect to the axle of back tube with vertical posture at the assigned position assembling lens.
The related invention of technical scheme 2 is in order to realize described purpose, following technical scheme 1 described lens devices is provided, it is characterized in that: described force application part is provided with and the described spring leaf of described binding with the threaded hole equal number, described lens devices possesses the force application part detent mechanism, described force application part detent mechanism so that described each spring leaf be positioned at described each link with threaded hole neighbouring and the mode that described force application part is disposed at described recess is positioned.
According to the present invention, be arranged at force application part with the spring leaf that links with several equal numbers of threaded hole.And, position by the force application part detent mechanism with near the mode the threaded hole so that each spring leaf is positioned at each binding, thereby force application part is disposed in the recess.Like this, by near the structure that is set as near each links with threaded hole configuration spring leaf and pushes spring leaf with threaded hole, can stablize thus and push force application part in binding.
The related invention of technical scheme 3 is in order to realize described purpose, following technical scheme 2 described lens devices are provided, it is characterized in that described force application part detent mechanism is made of with the force application part location fitting portion that is arranged at described force application part and chimeric described force application part register pin the force application part register pin that is arranged in the described recess.
According to the present invention, the force application part detent mechanism is made of with the force application part location fitting portion that is located at force application part the force application part register pin that is located in the recess.Thus, only make the force application part register pin be embedded in force application part location fitting portion and can simply locate force application part.
The related invention of technical scheme 4 provides following technical scheme 3 described lens devices in order to realize described purpose, it is characterized in that possessing: diaphragm unit, mounting are on described force application part register pin and be disposed in the described recess; The diaphragm unit is fixing uses threaded hole, is formed at the top of described force application part register pin; The fixing through hole of using in diaphragm unit is corresponding to the fixing described diaphragm unit that is formed at threaded hole, described diaphragm unit; Diaphragm unit fixing screw, with respect to the described diaphragm unit that is positioned on the described force application part register pin, pass the fixing described diaphragm unit that is tightened against with through hole, described diaphragm unit and fix and use threaded hole, thus described diaphragm unit is fixed in described force application part register pin.
According to the present invention, the mechanism of dual-purpose force application part detent mechanism and fixed aperture unit.Thus, when can reduce the part number of packages, can also reduce the assembly work amount.
Can be simply according to the present invention and correctly assemble fixed lens.
Description of drawings
Fig. 1 is the cut-open view of an embodiment of expression lens devices involved in the present invention.
Fig. 2 is the assembling stretch-out view of the 3rd lens.
Fig. 3 is the stereographic map of the leading section structure of expression back stationary magazine creel.
Fig. 4 is the stereographic map of the rearward end structure of stationary magazine creel before the expression.
The structural perspective of the leading section of stationary magazine creel after when Fig. 5 is expression assembling the 3rd lens.
The stereographic map of the structure of the leading section of stationary magazine creel after when Fig. 6 is expression installation application of force ring.
The amplification stereogram of the structure of the leading section of stationary magazine creel after when Fig. 7 is expression installation application of force ring.
The stereographic map of the structure of the leading section of stationary magazine creel after when Fig. 8 is expression installation diaphragm unit.
Among the figure: 10-lens devices, L1-the 1st lens, F1-lens holding frames, L2-the 2nd lens, F2-lens holding frames, L3-the 3rd lens, the F3-lens holding frames, L4-the 4th lens, F4-lens holding frames, 12-lens shank, 14-diaphragm unit, stationary magazine creel before the 16-, the 16A-flange portion, stationary magazine creel behind the 18-, 18A-flange portion, rotating cylinder before the 20-, 20A-flange portion, rotating cylinder behind the 22-, the 24-recess, 25-flange portion, 26-pin, the 28-gathering sill, 30-recess, 32-wavy spring, 34-cam pin, 36-directly advance groove, the 38-cam path, 40-binding screw, 42-link uses threaded hole, 44-binding through hole, 46-the 1st fitting portion, 48-the 2nd fitting portion, 50-diaphragm unit fixing screw, 60-pin, the 62-gathering sill, the 64-recess, 66-wavy spring, 68-cam pin, 70-directly advances groove, the 72-cam path, the preceding fastening part of 100-, fastening part behind the 102-, the 104-flange portion, the rear end face of 104B-flange portion (reference field), stationary magazine creel register pin before the front end face of 104F-flange portion, 106-, stationary magazine creel locating slot before the 108-, the 110-jut, 112-abutting part, 114-the 1 3rd lens position pin, 116-the 2 3rd lens position pin, 118-the 1 3rd lens position hole, 120-the 2 3rd lens position hole, 122-application of force ring, 124-application of force ring main body, the 126-spring leaf, 126A-base end part, 126B-spring portion, 128-the 1st application of force loop mapping pin, 130-the 2nd application of force loop mapping pin, 132-the 1st application of force loop mapping hole, 134-the 2nd application of force loop mapping recess, 136-the 1st application of force loop mapping pin inserting hole, 138-the 2nd application of force loop mapping pin inserting hole, 140-press section, 142-diaphragm, the 144-diaphragm motor, the 146-main body substrate, 148-diaphragm unit is fixing uses threaded hole, and through hole is fixedly used in 150-diaphragm unit.
Embodiment
Below, be elaborated with reference to the preferred implementation of accompanying drawing to lens devices involved in the present invention.
＜one-piece construction 〉
Fig. 1 is the cut-open view of an embodiment of expression lens devices involved in the present invention.
With the lens devices shown in the figure 10 is to possess the lens devices that the surveillance camera of focusing, zoom mechanism and aperture device is used, and disposes the 1st lens L1, the 2nd lens L2, the 3rd lens L3, the 4th lens L4 in the inside of its lens shank 12 successively from the front side along camera axis O.And, between the 2nd lens L2 and the 3rd lens L3, be inserted with diaphragm unit 14.
In addition, in figure, each lens L1～L4 puts down in writing with 1 lens, but each lens L1～L4 is made of a slice lens at least.
The 1st lens L1 and the 3rd lens L3 are fixed lens, remain on lens holding frames F1, F3 respectively and are fixedly installed in assigned position in the lens shank 12.
On the other hand, the 2nd lens L2 and the 4th lens L4 are mobile lens, remain on lens holding frames F2, F4 respectively, move forward and backward in lens shank 12 freely along camera axis O and install.Lens devices 10 carries out zoom by the 2nd lens L2 is moved, and focuses on by the 4th lens L4 is moved.
Preceding stationary magazine creel 16 forms cylindric.Front end periphery at this preceding stationary magazine creel 16 is formed with flange portion 16A.And perimembranous is formed with circular recess 24 in its front end.
The lens holding frames F1 of the 1st lens L1 is formed with flange portion 25 at its peripheral part, this flange portion 25 is embedded into the recess 24 of perimembranous in the front end that is formed at preceding stationary magazine creel 16, and bonding with bonding agent, stationary magazine creel 16 before fixing thus and being installed on.At this moment, stationary magazine creel 16 before the lens holding frames F1 of the 1st lens L1 degree of tilt of adjusting the 1st lens L1 is adhered to.
Preceding rotating cylinder 20 forms cylindric, is formed with flange portion 20A in its front end periphery.Should before the external diameter of internal diameter and preceding stationary magazine creel 16 of rotating cylinder 20 corresponding and form.Preceding rotating cylinder 20 comes the peripheral part of Zhi Chengqian stationary magazine creel 16 sliding freely by the peripheral part of stationary magazine creel 16 before perimembranous in it is mounted to.
And, in the interior perimembranous rear end of this preceding rotating cylinder 20, the outstanding pin 26 that is formed with at 3 circumferential places.These 3 pins 26 are sticked in along the gathering sill 28 of the peripheral part rear end that circumferentially is formed at preceding stationary magazine creel 16.Preceding rotating cylinder 20 is sticked in gathering sill 28 by these 3 pins 26 and comes moving of restrictive axial, and rotates the peripheral of Zhi Chengqian stationary magazine creel 16 freely.
And being formed with camera axis O at the front end face of this preceding rotating cylinder 20 is the annular recessed portion 30 that the center has the regulation internal diameter.Embed the wavy spring 32 that the ring-type of forming is arranged at this recess 30.The peripheral part of stationary magazine creel 16 before if preceding rotating cylinder 20 is loaded into, the rear end face of the flange portion 16A of stationary magazine creel 16 before then wavy spring 32 is connected to, and flange portion 16A, 20A that will be each other to along axially away from the direction application of force.Thus, before rotation, during rotating cylinder 20, can give certain torque and good operation sense can be provided.
The interior perimembranous of stationary magazine creel 16 before the 2nd lens L2 is contained in.Dispose 3 cam pins 34 at the peripheral part of the lens holding frames F2 that keeps the 2nd lens L2 with uniformly-spaced (120 ° of intervals).Be formed with 3 that these 3 cam pins 34 engage separately and directly advance groove 36 in that the side face of preceding stationary magazine creel 16 is parallel with camera axis O.And, be formed with 3 cam paths 38 that these 3 cam pins 34 engage separately with the regulation track at the inner peripheral surface of preceding rotating cylinder 20.The 2nd lens L2 is sticked in respectively when 3 of stationary magazine creel 16 directly advance groove 36 before being formed at these 3 cam pins 34, be sticked in be formed on before the state of 3 cam paths 38 of inner peripheral surface of rotating cylinder 20, the interior perimembranous of stationary magazine creel 16 before being accommodated in.Thus, if rotating cylinder 20 rotation before making, then the 2nd lens L2 is at 3 cam pins 34, cam path 38, directly advance under the effect of groove 36, and O moves forward and backward along camera axis.
Back stationary magazine creel 18 forms cylindric, is formed with flange portion 18A in its front end periphery.Back stationary magazine creel 18 by with link with screw 40 this flange portion 18A is tightened against before the rear end face of stationary magazine creel 16 be linked to the rear end of preceding stationary magazine creel 16 coaxial on.For this reason, the rear end face of preceding stationary magazine creel 16 parallel with camera axis O be formed for making link the binding of tightening with threaded hole 42 (with reference to Fig. 4) with screw 40, the flange portion 18A of back stationary magazine creel 18 parallel with camera axis O run through to be formed for passing link the binding through hole 44 (with reference to Fig. 3) of using screw 40.This binding is with threaded hole 42 and link with through hole 44 3 sentencing uniformly-spaced and dispose on the concentric circles that with camera axis O is the center, and back stationary magazine creel 18 is tightened at 3 places and the rear end face of stationary magazine creel 16 before being fixed on.
Front end face at back stationary magazine creel 18 is formed with the 1st fitting portion 46 and the 2nd fitting portion 48 (with reference to Fig. 3).The 1st fitting portion 46 forms as the circular recess that with camera axis O is the center, the external diameter of rotating cylinder 20 before its internal diameter correspondence and forming.The 2nd fitting portion 48 is formed at the bottom of the 1st fitting portion 46 as the circular recess that with camera axis O is the center, and the external diameter of its internal diameter and preceding stationary magazine creel 16 is corresponding and form.Its result, if back stationary magazine creel 18 is attached at preceding stationary magazine creel 16, when then the rearward end of preceding stationary magazine creel 16 was embedded in the inboard of the 2nd fitting portion 48, the rearward end of preceding rotating cylinder 20 was embedded in the inboard of the 1st fitting portion 46.
The 3rd lens L3 is embedded in the inboard of the 2nd fitting portion 48, if stationary magazine creel 16 before will back stationary magazine creel 18 being attached at, before then being sandwiched in stationary magazine creel 16 with after between the stationary magazine creel 18 and be installed on assigned position.
And the bottom surface that diaphragm unit 14 is tightened against the 2nd fitting portion 48 by diaphragm unit fixing screw 50 is installed on back stationary magazine creel 18.
In addition, the mounting structure about the 3rd lens L3 that comprises this diaphragm unit 14 is described in detail in the back.
Back rotating cylinder 22 forms cylindric, the external diameter of stationary magazine creel 18 after its internal diameter correspondence and forming.Back rotating cylinder 22 supports the peripheral part of back stationary magazine creel 18 sliding freely by the peripheral part that perimembranous in it is embedded in back stationary magazine creel 18.
And, in the interior perimembranous rear end of this back rotating cylinder 22, the outstanding pin 60 that is formed with at 3 circumferential places.These 3 pins 60 are sticked in along the gathering sill 62 of the peripheral part rear end that circumferentially is formed at back stationary magazine creel 18.Back rotating cylinder 22 by these 3 pins 60 be sticked in gathering sill 62 come moving of restrictive axial and rotate supporting back stationary magazine creel 18 freely peripheral part around.
And, at the front end face of this back rotating cylinder 22 along the recess 64 that circumferentially is formed with ring-type.Embed the wavy spring 66 that the ring-type of forming is arranged at this recess 64.If back rotating cylinder 22 is loaded into the peripheral part of back stationary magazine creel 18, then wavy spring 66 is connected to the rear end face of flange portion 18A of back stationary magazine creel 18, and will back rotating cylinder 22 to the direction application of force away from the flange portion 18A of back stationary magazine creel 18.Thus, during the rotating cylinder 22 of rotation back, can give certain torque and good operation sense is provided.
The 4th lens L4 is accommodated in the interior perimembranous of back stationary magazine creel 18.Dispose 3 cam pins 68 at the peripheral part of the lens holding frames F4 that keeps the 4th lens L4 with uniformly-spaced (120 ° of intervals).Be formed with 3 that these 3 cam pins 68 engage separately and directly advance groove 70 in that the side face of back stationary magazine creel 18 is parallel with camera axis O.And, be formed with 3 cam paths 72 that these 3 cam pins 68 engage separately with the track of stipulating at the inner peripheral surface of back rotating cylinder 22.The 4th lens L4 these 3 cam pins 68 be sticked in respectively be formed on back 3 of stationary magazine creel 18 and directly advance groove 70 in, with the state of 3 cam paths 72 being sticked in the inner peripheral surface that is formed on back rotating cylinder 22, be accommodated in the interior perimembranous of back stationary magazine creel 18.Thus, if make back rotating cylinder 22 rotation, then at 3 cam pins 68, cam path 72, directly advance under the effect of groove 70, the 4th lens L4 moves forward and backward along camera axis O.
In addition, the rearward end at lens devices 10 is equipped with image unit (not shown).The light that incides the 1st lens L1 incides the sensitive surface of the imaging apparatus that image unit possesses by the 2nd lens L2, diaphragm unit the 14, the 3rd lens L3, the 4th lens L4.
The mounting structure of＜the 3 lens L3 〉
Fig. 2 is the assembling stretch-out view of the 3rd lens and diaphragm unit.
As above-mentioned, the 3rd lens L3 is embedded in the inboard of the 2nd fitting portion 48 of perimembranous in the front end that is formed at back stationary magazine creel 18, by preceding stationary magazine creel 16 being attached at back stationary magazine creel 18, seized on both sides by the arms preceding stationary magazine creel 16 with after between the stationary magazine creel 18 and be installed on assigned position.And diaphragm unit 14 is tightened against in the 2nd fitting portion 48 and is installed on assigned position.
As shown in Figure 4, the rear end face at preceding stationary magazine creel 16 is formed with the binding threaded hole 42 that 3 places are used for being linked to screw 40 with binding back stationary magazine creel 18.These 3 bindings with the axle of threaded hole 42 former stationary magazine creels 16 be on the concentric circles at center with uniformly-spaced (120 ° of intervals) configuration, and be formed at the preceding fastening part 100 of the flat column of the parallel outstanding and formation of the rear end face of stationary magazine creel 16 in the past respectively with axle.
On the other hand, as shown in Figure 3, be formed with 3 places in the bottom surface sections of the 2nd fitting portion 48 of back stationary magazine creel 18 and be used to pass the binding through hole 44 that links with screw 40 during stationary magazine creel 16 before fixing.These 3 bindings with through hole 44 afterwards the axle of stationary magazine creel 18 be on the concentric circles at center with uniformly-spaced (120 ° of intervals) configuration, and be formed at respectively from the parallel outstanding and tabular back fastening part 102, side of formation of the bottom surface sections of the 2nd fitting portion 48 with axle.
And, as shown in Figure 4, parallel with axle outstanding and be formed with the preceding stationary magazine creel register pin 106 that is used for preceding stationary magazine creel 16 is positioned at respect to back stationary magazine creel 18 assigned position when being linked to back stationary magazine creel 18 at the rear end face of preceding stationary magazine creel 16.On the other hand, as shown in Figure 3, the bottom surface sections of the 2nd fitting portion 48 of back stationary magazine creel 18 be formed with chimeric before the preceding stationary magazine creel locating slot 108 of stationary magazine creel register pin 106.Stationary magazine creel locating slot 108 is formed at from the bottom surface sections of the 2nd fitting portion 48 and gives prominence to and the tabular jut 110 in side of formation before being somebody's turn to do.
Before stationary magazine creel 16 stationary magazine creel locating slot 108 and be linked to back stationary magazine creel 18 before being linked to the back during stationary magazine creel 18, this preceding stationary magazine creel register pin 106 is embedded in.Thus, preceding stationary magazine creel 16 is installed in assigned position with respect to back stationary magazine creel 18.And, like this by with preceding stationary magazine creel 16 location and installation at back stationary magazine creel 18, the end face of preceding fastening part 100 connects with the end face of fastening part 102, back, link with threaded hole 42 and binding with through hole 44 be positioned at mutually coaxial on.
As shown in Figure 3, in the bottom of the 2nd fitting portion 48 of back stationary magazine creel 18 along the outstanding abutting part 112 that is formed with ring-type of inside circumference.The front end face of this abutting part 112 is with respect to the axle quadrature and forming of back stationary magazine creel 18.
About the 3rd lens L3, be formed with flange portion 104 at the peripheral part of its lens holding frames F1, the light shaft positive cross of the rear end face of its flange portion 104 (reference field) 104B and the 3rd lens L3 and forming.And the front end face 104F of its flange portion 104 also forms with the light shaft positive cross of the 3rd lens L3.
The 3rd lens L3 is embedded in the flange portion 104 of its lens holding frames F3 the inboard of the 2nd fitting portion 48 and is installed on back stationary magazine creel 18.At this moment, the rear end face 104B of lens holding frames F3 by its flange portion 104 that is embedded in the 3rd lens L3 of the 2nd fitting portion 48 inboards front end face that is connected to the abutting part 112 of the 2nd fitting portion 48 remains in the inboard of the 2nd fitting portion 48.
Bottom surface sections at the 2nd fitting portion 48 is formed with columned the 1 3rd lens position pin 114 and the 2 3rd lens position pin 116 that is used for the lens holding frames F3 of the 3rd lens L3 is positioned at assigned position with parallel the giving prominence to of axle.The 1 3rd lens position pin 114 forms major diameter and has specified length in the axial direction and form.On the other hand, the 2 3rd lens position pin 116 forms minor diameter and has specified length in the axial direction and form.
Assigned position in the flange portion 104 of the lens holding frames F3 that keeps the 3rd lens L3 is formed with the 1 3rd lens position hole 118 of chimeric 1 3rd lens position pins 114 and the 2 3rd lens position hole 120 of chimeric 2 3rd lens position pins 116.The 1 3rd lens position hole 118 and the 1 3rd lens position pin 114 coincide and form, the 2 3rd lens position hole 120 form can chimeric the 2 3rd lens position pin 116 the slotted hole shape.
When the 3rd lens L3 installs in that its lens holding frames F3 is embedded into the 2nd fitting portion 48, as shown in Figure 5, in the 1 3rd lens position hole 118, embed in the 1 3rd lens position pin 114, in the 2 3rd lens position hole 120, embed the 2 3rd lens position pin 116 and install.Like this, the state that is positioned on the camera axis O with its optical axis is installed.
As shown in Figure 6, the application of force ring 122 that forms with ring-type is installed on the lens holding frames F3 of the 3rd lens L3 that is embedded in the 2nd fitting portion 48.
Application of force ring 122 constitutes by the application of force ring main body 124 that forms with ring-type with at the integrally formed spring leaf 126 in peripheral part 3 places of this application of force ring main body 124.
Application of force ring main body 124 forms the ring-type of thin plate, thereafter end face (being carried on the face on the lens holding frames F3 of the 3rd lens L3) and the smooth orthogonally formation of axle.
At outstanding the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130 that is useful on the assigned position on the lens holding frames F3 that application of force ring 122 is positioned at the 3rd lens L3 that form of the assigned position of the bottom surface sections of the 2nd fitting portion 48.The 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130 all form the cylindric of specified altitude, and with the back stationary magazine creel 18 the axle parallel formation.
On the application of force ring main body 124 of application of force ring 122, the 1st application of force loop mapping pin 128 the 2nd application of force loop mapping recess 134 of semicircle shape of chimeric the 1st application of force loop mapping hole 132 and chimeric the 2nd application of force loop mapping pin 130 be formed on the assigned position.
As shown in Figure 6, when application of force ring 122 is installed being embedded in the 2nd fitting portion 48, when making the 1st application of force loop mapping pin 128 be embedded in the 1st application of force loop mapping hole 132, make the 2nd application of force loop mapping pin 130 be embedded in the 2nd application of force loop mapping recess 134 and install.Thus, each spring leaf 126 is positioned at assigned position, and application of force ring 122 is installed in the 2nd fitting portion 48.
At this, in the lens devices 10 of present embodiment, as Fig. 6, shown in Figure 7, application of force ring 122 is positioned near (being positioned to each spring leaf 126 disposes side by side with fastening part 102, back) that each spring leaf 126 is positioned at the back fastening part 102 that is formed on the 2nd fitting portion 48.
In addition, the assigned position in the flange portion 104 of the lens holding frames F3 of the 3rd lens L3 is formed with the 1st application of force loop mapping pin inserting hole 136 and the 2nd application of force loop mapping pin inserting hole 138 of inserting logical the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130.When the lens holding frames F3 of the 3rd lens L3 is embedded into the 2nd fitting portion 48, when the 1st application of force loop mapping pin inserting hole 136 passes the 1st application of force loop mapping pin 128, passes the 2nd application of force loop mapping pin 130 and embed to the 2nd application of force loop mapping pin inserting hole 138.
As shown in Figure 4, when the rear end face of preceding stationary magazine creel 16 is formed with 3 places preceding stationary magazine creel 16 is attached at back stationary magazine creel 18, be connected to the 126B of spring portion of spring leaf 126 of application of force ring 122 and the press section 140 of pushing spring leaf 126.Each press section 140 forms with flat column, and disposes side by side with preceding fastening part 100.For application of force ring 122, if preceding stationary magazine creel 16 is attached at back stationary magazine creel 18, then press section 140 is connected to the 126B of spring portion of its spring leaf 126, is pushed by its press section 140 and with the lens holding frames F3 of the 3rd lens L3 bottom surface application of force towards the 2nd fitting portion 48.Its result, the rear end face 104B of the flange portion 104 of the lens holding frames F3 of the 3rd lens L3 abuts to the front end face of abutting part 112, and the 3rd lens L3 is held in respect to camera axis O quadrature (parallel maintenance optical axis).
As shown in Figure 8, diaphragm unit 14 diaphragm motor 144 by diaphragm 142 and this diaphragm 142 of switch drive etc. is equipped on the main body substrate 146 with tabular formation and constitutes.This diaphragm unit 14 is installed on back stationary magazine creel 18 by diaphragm unit fixing screw 50 with the top that 2 places of main body substrate 146 are tightened against the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130.
Therefore, on the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130, be formed with the fixing threaded hole 148 of using in the diaphragm unit of tightening diaphragm unit fixing screw 50.And it is fixing with through hole 150 to be formed with the diaphragm unit that passes diaphragm unit fixing screw 50 on the main body substrate 146 of diaphragm unit 14.
Diaphragm unit 14 by aim at this diaphragm unit fixing with through hole 150 the position and the diaphragm unit is fixing is embedded into the 2nd fitting portion 48 with the position of threaded hole 148 above application of force ring 122, be installed on the interior assigned position of the 2nd fitting portion 48 thus.Then, diaphragm unit fixing screw 50 is passed the fixing fixing threaded hole 148 of using in diaphragm unit that is tightened against with through hole 150 in diaphragm unit, be fixed on back stationary magazine creel 18 thus.
In addition, back stationary magazine creel 18 is cut a part and is formed flange portion 18A, in order to avoid the diaphragm motor 144 of the diaphragm unit 14 that is mounted is interfered (with reference to Fig. 5).
The assemble method of＜the 3 lens 〉
At first, the 3rd lens L3 is installed in back stationary magazine creel 18.The 3rd lens L3 is embedded in the inboard of the 2nd fitting portion 48 of perimembranous in the front end that is formed on back stationary magazine creel 18 with lens holding frames F3 and installs.
At this moment, as shown in Figure 5, lens holding frames F3 is by when embedding the 1 3rd lens position pin 114 in the 1 3rd lens position hole 118 that is formed at its flange portion 104, embed the 2 3rd lens position pin 116 and be installed in the 2nd fitting portion 48 in the 2 3rd lens position hole 120.Thus, the 3rd lens L3 is positioned at assigned position with respect to back stationary magazine creel 18 and (installing under the optical axis of the 3rd lens L3 is positioned at state on the camera axis O) is installed.
And, by such installation, the 3rd lens L3 passes the 2nd application of force loop mapping pin 130 when passing the 1st application of force loop mapping pin 128 in the 1st application of force loop mapping pin inserting hole 136 of the flange portion 104 that is formed at its lens holding frames F3 in the 2nd application of force loop mapping pin inserting hole 138.
In addition, the 3rd lens L3 is installed in back stationary magazine creel 18 under the state of having assembled back rotating cylinder 22 and the 4th lens L4 on the stationary magazine creel 18 of back.
Secondly, application of force ring 122 is installed in back stationary magazine creel 18.The lens holding frames F3 that application of force ring 122 overlaps the 3rd lens L3 upward is installed in the 2nd fitting portion 48.
At this moment, as shown in Figure 6, when application of force ring 122 is embedded in the 1st application of force loop mapping hole 132 that is formed on its application of force ring main body 124 by the 1st application of force loop mapping pin 128, makes the 2nd application of force loop mapping pin 130 be embedded in the 2nd application of force loop mapping recess 134 and be installed in the 2nd fitting portion 48.Thus, each spring leaf 126 is positioned at assigned position and application of force ring 122 is installed on the 2nd fitting portion 48.
Secondly, diaphragm unit 14 is installed in back stationary magazine creel 18.Diaphragm unit 14 usefulness diaphragm unit fixing screws 50 are tightened in the top of the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130 and are installed in back stationary magazine creel 18.At this moment, the fixing fixing position with threaded hole 148 in position and diaphragm unit with through hole 150, the diaphragm unit that is formed at its main body substrate 146 is at first aimed in diaphragm unit 14, thereby is installed in the 2nd fitting portion 48.Then, it is fixing with through hole 150 that diaphragm unit fixing screw 50 is passed the diaphragm unit, and it is fixing with threaded hole 148 to make it to be tightened against the diaphragm unit.Thus, be fixed on back stationary magazine creel 18.
Be fixed on back stationary magazine creel 18 by diaphragm unit 14 and be mounted, the application of force ring 122 that is installed on the 2nd fitting portion 48 is covered front end face by this diaphragm unit 14.Thus, prevent after application of force ring 122 and the 3rd lens L3 break away from from the 2nd fitting portion 48.
Secondly, preceding stationary magazine creel 16 is installed in back stationary magazine creel 18.Preceding stationary magazine creel 16 end thereafter is embedded in the 2nd fitting portion 48 of perimembranous in the front end that is formed on back stationary magazine creel 18 and is installed in back stationary magazine creel 18.At this moment, preceding stationary magazine creel 16 make and preceding stationary magazine creel register pin 106 that form outstanding from end face thereafter be entrenched in the 2nd fitting portion 48 that is formed at back stationary magazine creel 18 the bottom preceding stationary magazine creel locating slot 108 and be installed in back stationary magazine creel 18.Therefore, preceding stationary magazine creel 16 is installed in assigned position with respect to back stationary magazine creel 18.
In addition, preceding stationary magazine creel 16 assembled the 2nd lens L2 and before be installed on stationary magazine creel 18 afterwards under the state of rotating cylinder 20.Its result, the rearward end of preceding rotating cylinder 20 are embedded in the 1st fitting portion 46 of perimembranous in the front end that is formed on back stationary magazine creel 18.
As above-mentioned, as if preceding stationary magazine creel 16 being positioned at back stationary magazine creel 18 and installing, the mutual butt of end face of the back fastening part 102 that forms of the end face of the preceding fastening part 100 that forms at rear end face 3 places of preceding stationary magazine creel 16 and 3 places, bottom then at the 2nd fitting portion 48 of back stationary magazine creel 18, the binding that forms in its preceding fastening part 100 with threaded hole 42 with after the binding of fastening part 102 formation be positioned at mutually with through hole 44 coaxial on.
And the 126B of spring portion of each spring leaf 126 that the press section 140 that forms at 3 places of the rear end face of preceding stationary magazine creel 16 is connected to the application of force ring 122 of the 2nd fitting portion 48 that is installed in back stationary magazine creel 18 pushes application of force ring 122 towards the bottom surface sections of the 2nd fitting portion 48.Its result, the lens holding frames F3 that is configured in the 3rd lens L3 below the application of force ring 122 is pushed by application of force ring 122, and end face (reference field) 104B pushes the front end face of the abutting part 112 that is connected to the bottom that is formed on the 2nd fitting portion 48 thereafter.Thus, the 3rd lens L3 keeps (state parallel with camera axis O keeps with the optical axis of the 3rd lens L3) with the posture vertical with respect to the axle (camera axis O) of back stationary magazine creel 18.
Pass binding in each binding with through hole 44 with this state and be tightened against binding threaded hole 42 with screw 40.Thus, preceding stationary magazine creel 16 is fixed on back stationary magazine creel 18.And thus, the 3rd lens L3 becomes its lens holding frames F3 all the time by the state of application of force ring 122 application of forces, and fixes with the state of seizing on both sides by the arms between preceding stationary magazine creel 16 and back stationary magazine creel 18 by application of force ring 122.
By above a series of operation the 3rd lens L3 is assembled in lens shank 12.
Because assembled the 3rd lens L3 fixes to seize on both sides by the arms at preceding stationary magazine creel 16 and the back state between the stationary magazine creel 18 by application of force ring 122, so can on lens holding frames F3, not produce deflection when tightening.Therefore, can not produce the skew or the inclination of optical axis, can steady production have the lens devices of high optical property.
And, also only embed assigned position during assembling, so can assemble simply.
In addition, in the lens devices 10 of present embodiment, parts (the 1st application of force loop mapping pin 128 and the 2nd application of force loop mapping pin 130) because of dual-purpose is used to that the parts of diaphragm unit 14 are installed and carries out application of force ring 122 location when can reduce the part number of packages thus, can also reduce the assembly working amount.
In addition, can prevent coming off of application of force ring 122 and the 3rd lens L3 by the diaphragm unit 14 of assembling, so in assembling, do not have the offset of application of force ring 122 or the 3rd lens L3 or the phenomenon that departs from.Thereby assembling also can simply be carried out.
And, in the lens devices 10 of present embodiment, because so that each spring leaf 126 of application of force ring 122 locatees application of force ring 122 near the modes that link the configuration with threaded hole 42 and installs, so can stablize each spring leaf 126 of pushing application of force ring 122 with the power of equalization.
In addition, in the present embodiment, though before tighten at 3 places stationary magazine creel 16 and back stationary magazine creel 18,, fixing before the number positional of stationary magazine creel 16 and back stationary magazine creel 18 be not limited thereto.Just, preferably tighten at 3 places at least, and the position of tightening preferably on concentric circles uniformly-spaced to be provided with.And at this moment, the spring leaf 126 that is provided with on application of force ring 122 also preferably only is provided with the quantity identical with the position of tightening, and near the part configuration of tightening.
Claims (4)
1. lens devices is characterized in that possessing:
The back tube;
Flange portion is formed at described back front end peripheral part;
Recess is formed at perimembranous in the described back front end;
Placket, rearward end be embedded in described recess and be installed on the front end of described back tube coaxial on;
A plurality of binding threaded holes are formed at the rear end face of described placket;
A plurality of binding through holes, with described each link with threaded hole corresponding and be formed at described flange portion;
A plurality of binding screws, with respect to the described back tube that described placket has been installed, pass described each link be tightened against with through hole described each link and use threaded hole, be fixed in described placket with after described thus;
Lens holding frames keeps lens in interior perimembranous, is embedded in the inboard of described recess and is disposed at the inboard of described back tube;
Reference field forms in the rear end of described lens holding frames and the light shaft positive cross ground of described lens;
Abutting part is formed in the described recess, and butt is disposed at the described reference field of the described lens holding frames in the described recess, and the axle with respect to after described vertically keeps described lens holding frames;
The force application part of ring-type has a plurality of spring leafs of displacement vertically at peripheral part, is overlapped on the described lens holding frames that is configured in the described recess to be disposed in the described recess;
The press section, described spring leaf corresponding to described force application part forms a plurality of in the rear end of described placket, when described placket being installed on described back tube, push the described spring leaf that is disposed at the described force application part in the described recess, make the described reference field of described lens holding frames be resisted against described abutting part, thereby described lens holding frames is fixed in the described recess.
2. lens devices as claimed in claim 1 is characterized in that,
Described force application part is provided with and the described spring leaf of described binding with the threaded hole equal number,
Described lens devices possesses the force application part detent mechanism, described force application part detent mechanism so that described each spring leaf be positioned at described each link with threaded hole neighbouring and the mode that described force application part is disposed at described recess is positioned.
3. lens devices as claimed in claim 2 is characterized in that,
Described force application part detent mechanism is made of with the force application part location fitting portion that is arranged at described force application part and chimeric described force application part register pin the force application part register pin that is arranged in the described recess.
4. lens devices as claimed in claim 3 is characterized in that possessing:
Diaphragm unit, mounting are on described force application part register pin and be disposed in the described recess;
The diaphragm unit is fixing uses threaded hole, is formed at the top of described force application part register pin;
The fixing through hole of using in diaphragm unit is corresponding to the fixing described diaphragm unit that is formed at threaded hole, described diaphragm unit;
Diaphragm unit fixing screw, with respect to the described diaphragm unit that is positioned on the described force application part register pin, pass the fixing described diaphragm unit that is tightened against with through hole, described diaphragm unit and fix and use threaded hole, thus described diaphragm unit is fixed in described force application part register pin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009251088A JP2011095617A (en) | 2009-10-30 | 2009-10-30 | Lens device |
| JP2009-251088 | 2009-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102053328A true CN102053328A (en) | 2011-05-11 |
Family
ID=43957847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105017710A Pending CN102053328A (en) | 2009-10-30 | 2010-09-30 | Lens device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2011095617A (en) |
| CN (1) | CN102053328A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709656A (en) * | 2019-03-21 | 2019-05-03 | 东莞市宇瞳光学科技股份有限公司 | A kind of adjustable core lens mechanism |
| CN110941075A (en) * | 2019-11-28 | 2020-03-31 | 中国科学院微电子研究所 | Reflective optical system and installation and adjustment testing method thereof |
| CN111207807A (en) * | 2020-01-09 | 2020-05-29 | 许春俤 | Radio frequency admittance level meter convenient to fixed use |
| CN112179285A (en) * | 2019-07-02 | 2021-01-05 | 松下知识产权经营株式会社 | Holder and measuring jig |
| CN115657399A (en) * | 2022-09-30 | 2023-01-31 | 华为技术有限公司 | Iris diaphragm, camera module and electronic equipment |
| CN109709656B (en) * | 2019-03-21 | 2024-05-14 | 东莞市宇瞳光学科技股份有限公司 | Adjustable core lens mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6479531B2 (en) * | 2015-03-30 | 2019-03-06 | 日本電産コパル株式会社 | Light shielding plate, lens module having light shielding plate, and optical device and electronic device including lens module |
-
2009
- 2009-10-30 JP JP2009251088A patent/JP2011095617A/en active Pending
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2010
- 2010-09-30 CN CN2010105017710A patent/CN102053328A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709656A (en) * | 2019-03-21 | 2019-05-03 | 东莞市宇瞳光学科技股份有限公司 | A kind of adjustable core lens mechanism |
| CN109709656B (en) * | 2019-03-21 | 2024-05-14 | 东莞市宇瞳光学科技股份有限公司 | Adjustable core lens mechanism |
| CN112179285A (en) * | 2019-07-02 | 2021-01-05 | 松下知识产权经营株式会社 | Holder and measuring jig |
| CN110941075A (en) * | 2019-11-28 | 2020-03-31 | 中国科学院微电子研究所 | Reflective optical system and installation and adjustment testing method thereof |
| CN110941075B (en) * | 2019-11-28 | 2022-07-05 | 中国科学院微电子研究所 | Reflective optical system and installation and adjustment testing method thereof |
| CN111207807A (en) * | 2020-01-09 | 2020-05-29 | 许春俤 | Radio frequency admittance level meter convenient to fixed use |
| CN111207807B (en) * | 2020-01-09 | 2021-10-22 | 江苏新晖测控科技有限公司 | Radio frequency admittance level meter convenient to fixed use |
| CN115657399A (en) * | 2022-09-30 | 2023-01-31 | 华为技术有限公司 | Iris diaphragm, camera module and electronic equipment |
| CN115657399B (en) * | 2022-09-30 | 2024-02-13 | 华为技术有限公司 | Iris diaphragm, camera module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011095617A (en) | 2011-05-12 |
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Application publication date: 20110511 |