CN1854783A - Lens with adjustable core - Google Patents

Lens with adjustable core Download PDF

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Publication number
CN1854783A
CN1854783A CN200510067813.3A CN200510067813A CN1854783A CN 1854783 A CN1854783 A CN 1854783A CN 200510067813 A CN200510067813 A CN 200510067813A CN 1854783 A CN1854783 A CN 1854783A
Authority
CN
China
Prior art keywords
ring
core
transfer
eyeglass
camera lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200510067813.3A
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Chinese (zh)
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CN100368850C (en
Inventor
张美斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xintai optics (Shenzhen) Co., Ltd.
Original Assignee
Asia Optical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to CNB2005100678133A priority Critical patent/CN100368850C/en
Publication of CN1854783A publication Critical patent/CN1854783A/en
Application granted granted Critical
Publication of CN100368850C publication Critical patent/CN100368850C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A camera lens with adjustable core consists of lens cone, lens unit, lens to be core-adjusted, movement guiding unit and regulation component. It is featured as forming regulation component regulation ring along and around the first axis and socketing it with said lens cone coaxially, setting regulation component driving ring along and around the second axis and enabling said ring to hold lens with core to be adjusted for setting said lens to be on eccentric state.

Description

The camera lens of adjustable core
Technical field
The present invention relates to a kind of camera lens, particularly relate to a kind of camera lens that need not transfer the core instrument just can finish the adjustable core of transferring the core operation.
Background technology
As shown in Figure 1, 2, a camera lens 10 has a lens barrel 11 and several eyeglasses 12,13 and one of being installed with in this lens barrel 11 wait to transfer core eyeglass 14.
This waits to transfer core eyeglass 14 because have sensitivity characteristic, so be placed on outermost so that carry out the accent core operation of this camera lens 10, so, need only adjust the position that this waits to transfer core eyeglass 14, just can reach the effect that the optical property of adjusting this camera lens 10 is just transferred core.
When transferring the core operation, earlier this camera lens 10 is mounted on a standard lens 20, be can be by described eyeglass 12,13,14 with the cooperating of several eyeglasses 21 of this standard lens 20, light 22 is injected and in regular turn by described eyeglass 14,13,12,21 and be presented in an imaging area 23, then, transfer core pawl 30 these lens barrels 11 of insertion and this to wait to transfer between the core eyeglass 14 several, so, just can make this wait to transfer core eyeglass 14 to produce to move radially and then change the position by mobile described accent core pawl 30, cooperate the image definition degree that is presented on this imaging area 23 again, just but whether interpretation finishes the accent core operation of this camera lens 10, after finishing the operation of accent core, must wait to transfer the gap 15 between core eyeglass 14 and this lens barrel 11 to inject viscose 16 at this, so that this waits to transfer core eyeglass 14 to obtain final location.
Though aforesaid way can be finished the accent core operation of this camera lens 10, in fact has following disappearance:
One, general camera lens volume is bigger, so with this accent core pawl 30 serves as to transfer the core instrument can't cause puzzlement in operation, but must ask in response to sci-tech product, camera lens convergence miniaturization now, at this lens barrel 11, wait to transfer under all quite little situation of core eyeglass 14 volumes, desiring with this accent core pawl 30 serves as to transfer the core instrument to transfer the core operation, and reality has inconvenience of operation, the adjustment degree of difficulty is higher, causes the disappearance of transferring the core operating efficiency not good.
Two, because the factor of pressure differential, so after this viscose 16 is injected this gap 15, this viscose 16 very easily flow to infiltrate the optical property that this effective diameter inner region of waiting to transfer core eyeglass 14 causes influencing this camera lens 10, at this moment, not only need rearrange this lens barrel 11 and wait to transfer core eyeglass 14 with this, must transfer the core operation again, so the not good disappearance of the core operating efficiency of accent is arranged.
Three, because this wait to transfer and have this gap 15 between core eyeglass 14 and this lens barrel 11, so when just this viscose 16 being injected this gap 15, this waits to transfer core eyeglass 14 very easily still to have a flowability because of this viscose 16 to cause position change, at this moment, must transfer the core operation again, the not good disappearance of the core operating efficiency of accent is arranged relatively.
Summary of the invention
The objective of the invention is is providing a kind of must the use to transfer the core instrument just can finish the operation of accent core, and locatees and then can significantly improve the camera lens of the adjustable core of transferring the core operating efficiency after the eyeglass adjustment at once.
The camera lens of adjustable core of the present invention is characterized in that:
The camera lens of this adjustable core comprises
One lens barrel, comprise second section of one first Duan Yuyi that is reverse setting, one from this first letter section along the perforation of an extension of central axis to this second section, one from an end face of this second section along the circle anchor ring and an abutment face that this central axis is provided with, reach one and cooperated the accommodation space that forms with this abutment face by this circle anchor ring.
One lens unit comprises at least one eyeglass that is installed with in this perforation and inserts in this accommodation space this and wait to transfer the core eyeglass, and this waits to transfer the core eyeglass to have and be one first minute surface and one second minute surface of reverse setting, and a ring side face that links this two minute surface.
One leads and moves the unit, comprises several guide blocks that are arranged at this abutment face, and is arranged at this first minute surface and is sheathed on several outer guide grooves of these guide blocks respectively, between each guide groove and the guide block and have a gap.
One adjustment part comprises that an adjustment ring and is molded over the driving ring in this adjustment ring, and this adjustment ring has an outer ring surface and an inner ring surface that centers on a first axle, and links one first end face and one second end face of this two anchor ring; This driving ring has the anchor ring that inserts and puts along one second axis around setting, and this inserts and puts the driving ring end face of anchor ring and this inner ring surface to reach a binding.
By above-mentioned composition, insert this accommodation space when this being waited to transfer the core eyeglass, described guide groove is sheathed on outside the described guide block, again with outside coaxial second section that is sheathed on this lens barrel of the adjustment ring of this adjustment part, simultaneously insert and put the ring side face that this waits to transfer the core eyeglass by this driving ring, and make this wait to transfer the core eyeglass to be eccentric state with respect to this adjustment ring, so, need only rotate this adjustment part, just can drive this waits to transfer the core eyeglass radially to move the change position, and then produce accent core effect, the present invention is had must not transfer the core instrument just can finish the operation of accent core, and can improve the characteristic of transferring the core operating efficiency.
Description of drawings
Fig. 1 is an assembled sectional view, illustrates that general lens group is located at the state that a standard lens is transferred the core operation;
Fig. 2 is a local assembled sectional view, illustrates that general camera lens is finished to transfer the core operation and inject viscose so that one wait to transfer the state of core lens orientation;
Fig. 3 is the exploded perspective view of camera lens one first preferred embodiment of adjustable core of the present invention;
Fig. 4 is a side view of a lens barrel of this first preferred embodiment;
Fig. 5 is a sectional exploded view of this first preferred embodiment;
Fig. 6 is a combination section of this first preferred embodiment;
Fig. 7 is a local combination section of this first preferred embodiment, illustrates that one leads and moves the unit;
Fig. 8 is a local combination synoptic diagram of this first preferred embodiment, illustrates that one waits to transfer the core eyeglass to be positioned at a primary importance;
Fig. 9 one is similar to the view of Fig. 8, illustrates that this waits to transfer the core eyeglass to be positioned at a second place;
Figure 10 is a planimetric map of this first preferred embodiment, illustrates that this waits to transfer the core eyeglass to move to this second place from this primary importance;
Figure 11 is an exploded perspective view of camera lens one second preferred embodiment of adjustable core of the present invention;
Figure 12 is a local combination synoptic diagram of this second preferred embodiment.
Embodiment
The camera lens of the adjustable core that foundation the present invention is proposed below in conjunction with accompanying drawing and preferred embodiment is elaborated.
Be noted that, employed relative position term in entire description, for example " first direction X ", " second direction Y ", " third direction Z " are to be benchmark with the coordinate direction shown in each figure, and this first direction X is perpendicular to one another with this second direction Y and this third direction Z, and similar elements is with identical label declaration.
Shown in Fig. 3,6, be respectively the exploded perspective view and the combination section of camera lens one first preferred embodiment of adjustable core of the present invention, this first preferred embodiment comprises a lens barrel 40, and is installed in lens unit 50 in this lens barrel 40, one is arranged on one of this lens barrel 40 and this lens unit 50 waits to transfer leading between the core eyeglass 53 to move unit 60, and one is sheathed on this lens barrel 40 and can drives the adjustment part 70 that this waits to transfer core eyeglass 53.
Shown in Fig. 3,5, be respectively the three-dimensional exploded view and the sectional exploded view of this first preferred embodiment, this lens barrel 40 comprises one first section 41 and one second section 42 that is reverse setting, one extends to the perforation 43 of this second section 42 from this first section 41 along a central axis 400, one end face 421 from this second section 42 encloses an anchor ring 44 and an abutment face 45 along this central axis 400 towards one of these first section, 41 settings, reaches one by this circle anchor ring 44 and the accommodation space 46 that forms that this abutment face 45 cooperates.
This lens unit 50 comprises and is installed with in this perforation 43 and is positioned at two eyeglasses 51,52 of this first section 41, and inserts in this accommodation space 46 this and wait to transfer core eyeglass 53.This waits to transfer core eyeglass 53 to have and is one first minute surface 531 and one second minute surface 532 of reverse setting, and a ring side face 533 that links this two minute surface 531,532.
Shown in Fig. 6,7, be respectively the combination section of this first preferred embodiment, this is led and moves unit 60 and comprise that being arranged at this abutment face 45 (sees Fig. 4 with several guide blocks 61 of these circle anchor ring 44 intersections, and be arranged at this first minute surface 531 and be sheathed on several outer open guide grooves 62 of described guide block 61 respectively side view for this lens barrel 40).Again, the groove width of each guide groove 62 less times greater than the width of each guide block 61 so that have the gap between this guide groove 62 and this guide block 61.
This first preferred embodiment is to lift four guide blocks 61 being the equal angles setting, guide groove 62 for example describes, and the position is set can exchanges of described guide block 61, guide groove 62.
Shown in Fig. 3,5, this adjustment part 70 comprises that an adjustment ring 71 and is molded over the driving rings 72 in this adjustment ring 71.
An inner ring surface 711 and an outer ring surface 712 that this adjustment ring 71 has around a first axle 710, one first end face 713 and one second end face 714 that link this two anchor ring 711,712 reach one from the retaining edge 715 of this second end face 714 towards these first axle 710 moulding.
This driving ring 72 has from this retaining edge 715 towards this first end face 713 and insert and put anchor ring 721 along one second axis 720 around moulding, and one links the driving ring end face 722 that this inserts and puts anchor ring 721 and this inner ring surface 711.
In this first preferred embodiment, this second axis 720 and these first axle 710 off-centre, relatively this driving ring end face 722 is one to have the cam ring end face that does not wait meat thick.
Further, this adjustment part 70 also comprises one by this inner ring surface 711 and the sleeve part 73 that forms that this driving ring end face 722 cooperates.
Preferably, this driving ring 72 has end 723, two intervals, reach this adjustment part 70 and also comprise the two bullet push pieces 74 that extend along a circumferencial direction from this end 723, two intervals, each bullet push piece 74 has a cantilever 741 and and is arranged at these cantilever 741 free ends and stretches into this elastic projection that inserts and puts anchor ring 721 742.
As shown in Figure 8, for this adjustment part 70 in this first preferred embodiment and this wait to transfer the combination synoptic diagram of core eyeglass 53, more further, this wait to transfer the diameter D of core eyeglass 53≤(smaller or equal to) diameter d that inserts and puts anchor ring 721 of this driving ring 72.In this first preferred embodiment, this waits to transfer, and the diameter D of core eyeglass 53<this inserts and puts the diameter d of anchor ring 721, and utilize this two elastic projection 742 resilient engagement this insert and put anchor ring 721 and wait to transfer core eyeglass 53 to insert and put the location this.
As Fig. 5,6, shown in 7, during assembling, be earlier with this eyeglass 51,52 are installed with the endoporus 43 at this lens barrel 40, then this is waited to transfer core eyeglass 53 to insert in the accommodation space 46 of this lens barrel 40, each guide groove 62 just is sheathed on outside each guide block 61 simultaneously, continuation is set in the adjustment ring 71 of this adjustment part 70 outside second section 42 of this lens barrel 40, then just can make this second section 42 be positioned at the sleeve part 73 of this adjustment part 71, and this first axle 710 becomes same axis with this central axis 400 and makes this adjustment ring 71 concentric with this lens barrel 40, but this driving ring 72 is eccentric with this lens barrel 40, simultaneously, this waits to transfer core eyeglass 53 to be inserted and put the location and be eccentric (see figure 8) with this adjustments ring 71 with this two elastic projection 742 by the anchor ring 721 that inserts and puts of this driving ring 72, reaches this and waits to transfer core eyeglass 53 to be limited between the abutment face 45 of the retaining edge 715 of this adjustment part 70 and this lens barrel 40 can't to move along this third direction Z.
As Fig. 6,8,9, shown in 10, transfer the action synoptic diagram of core operation for this first preferred embodiment, during adjustment, only need to rotate this adjustment part 70, then wait to transfer core eyeglass 53 with respect to these adjustment ring 71 off-centre because of this driving ring 72 and this, so when this adjustment ring 71 is sheathed on these lens barrel 40 rotations, this driving ring 72 will produce eccentric rotary relatively, but wait to transfer because of this and be provided with this between core eyeglass 53 and this lens barrel 40 and lead and move unit 60 (see figure 7)s, make this wait to transfer core eyeglass 53 can't rotate and then convert to radial motion, rotation along with this adjustment part 70, this waits to transfer the core eyeglass 53 will be along this first direction X, second direction Y produces and moves, and then produces accent core effect.
What deserves to be explained is, because this is waited to transfer core eyeglass 53 to be inserted and put anchor ring 721 by this at any time and inserts and puts the location with this two elastic projection 742, so after will waiting to transfer core eyeglass 53 to be adjusted to the optimum position, need only inject viscose 80 with these lens barrel 40 intersections at first end face 713 of this adjustment part 70, just can make this adjustment part 70 and this lens barrel 40 cemented and can't rotate again, this waits to transfer core eyeglass 53 also to obtain the location relatively, and then finishes the accent core operation of this camera lens.
Shown in Figure 11,12, part combination synoptic diagram for camera lens one second preferred embodiment of adjustable core of the present invention, not not existing together of this second preferred embodiment and this first preferred embodiment, an adjustment part 90 that is this second preferred embodiment includes an adjustment ring 91 around a first axle 910 moulding, one is molded over this adjustment around one second axis 920 encircles 91 interior driving rings 92, one sleeve part 93, and three fixture blocks 94.
These adjustment ring 91 inner ring surface 911 and outer ring surfaces 912 that have around this first axle 910, and one first end face 913 and one second end face 914 of this two anchor ring 911,912 of binding.
This driving ring 92 has one along linking the driving ring end face 922 that this inserts and puts anchor ring 921 and this inner ring surface 911 with concentric this second axis 920 of this first axle 910 around the anchor ring 921, that inserts and puts of moulding, and three spacer blocks 923.
This sleeve part 93 is cooperated with this driving ring end face 922 by this inner ring surface 911 to form and be sheathed on this second section 42.
This three fixture block 94 is to be molded between two spacer blocks 923 respectively and to protrude this to insert and put anchor ring 921 and can insert and put the ring side face 533 that this waits to transfer core eyeglass 53, because the protrusion amount difference of this three fixture block 94, make this wait to transfer a center 530 of core eyeglass 53 to be positioned at decentraction with this first axle 910, second axis 920, just this waits to transfer core eyeglass 53 to be eccentric state with respect to this adjustment ring 91.
So, when rotating this adjustment part 90, can produce the accent core effect identical with this first preferred embodiment.
Conclude above-mentionedly, the camera lens of adjustable core of the present invention has effect as described below and advantage, so can reach really
The object of the invention:
One, because the present invention must not transfer the core instrument, and need only rotate this adjustment part 70,90 and just can finish camera lens accent core Operation is so have effect and the advantage that operation is quite convenient, can improve accent core operating efficiency.
Two, because the present invention is should core eyeglass 53 be transferred at any time sandwiched with this two elastic projection 742 by this sandwiched anchor ring 721 The location, and need only inject viscose 80 with these lens barrel 40 intersections at first end face 713 of this adjustment part 70, just can make This core eyeglass 53 to be transferred obtains final location, flows into the effective of this core eyeglass 53 to be transferred so can stop this viscose 80 The situation of footpath inner region takes place, and relatively has effect and the advantage of can Effective Raise transferring the core operating efficiency.
Three, because the adjustment ring 71 of this adjustment part 70 of the present invention is second section 42 that coaxial sleeve is located at this lens barrel 40, So this adjustment part 70 there is no the existence of removable space and can radially not move, at this moment, the vertical calculation at this first end face 713 inject viscose 80 with this lens barrel 40 intersections, and this adjustment part 70 can not change the position yet, again because this wait to transfer Core eyeglass 53 by this sandwiched anchor ring 721 and these two elastic projections, 742 sandwiched location, is treated so can stop this at any time The situation of transferring core eyeglass 53 to change again the position after transferring the core operation to finish takes place, and relatively having can this accent of Effective Raise The effect of core operating efficiency and advantage.

Claims (7)

1. the camera lens of an adjustable core is characterized in that:
The camera lens of this adjustable core comprises
One lens barrel, comprise second section of one first Duan Yuyi that is reverse setting, one from this first section along the perforation of an extension of central axis to this second section, one from an end face of this second section along the circle anchor ring and an abutment face that this central axis is provided with, reach one and cooperated the accommodation space that forms with this abutment face by this circle anchor ring;
One lens unit comprises at least one eyeglass that is installed with in this perforation, and a device treating in this accommodation space transfer the core eyeglass, and this waits to transfer the core eyeglass to have and be one first minute surface and one second minute surface of reverse setting, and the ring side face of this two minute surface of binding;
One leads and moves the unit, comprises being arranged between this abutment face and this first minute surface and sheathed several guide blocks and several guide grooves mutually; And
One adjustment part, comprise one with the coaxial sheathed adjustment ring of this second section, and one be molded in this adjustments ring and insert and put this and wait to transfer the core eyeglass to make this wait to transfer the core eyeglass to encircle the driving ring of off-centre with respect to this adjustments.
2. the camera lens of adjustable core as claimed in claim 1 is characterized in that:
This adjustment ring has an inner ring surface and the outer ring surface around a first axle, this driving ring have along one with second axis of this first axle off-centre the anchor ring that inserts and puts around moulding, and one link this and insert and put the driving ring end face of anchor ring and this inner ring surface, and this adjustment part comprises that also one is cooperated the sleeve part that forms and be sheathed on this second section by this inner ring surface with this driving ring end face.
3. the camera lens of adjustable core as claimed in claim 2 is characterized in that:
This driving ring also has end, two intervals, and this adjustment part also comprises at least one the bullet push piece that extends along a circumferencial direction from end, aforementioned interval.
4. the camera lens of adjustable core as claimed in claim 3 is characterized in that:
This bullet push piece has the elastic projection that a cantilever and stretches into this inner ring surface.
5. the camera lens of adjustable core as claimed in claim 1 is characterized in that:
This adjustment ring has an inner ring surface and the outer ring surface around a first axle, this driving ring have along one with the insert and put anchor ring of concentric second axis of this first axle around moulding, one links this inserts and puts the driving ring end face of anchor ring and this inner ring surface, and three spacer blocks, this adjustment part comprises that also one is cooperated the sleeve part that forms and be sheathed on this second section by this inner ring surface with this driving ring end face, and is molded between two spacer blocks and protrudes this and insert and put anchor ring and insert and put this and wait to transfer the core eyeglass to make this wait to transfer the core eyeglass with respect to three eccentric fixture blocks of this adjustment ring.
6. the camera lens of adjustable core as claimed in claim 1 is characterized in that:
This is led and moves the unit and comprise and be four guide blocks that equal angles is arranged at this abutment face, and is four guide grooves that equal angles is arranged at this first minute surface, and has the gap between each guide groove and the guide block.
7. the camera lens of adjustable core as claimed in claim 1 is characterized in that:
The camera lens of this adjustable core also comprises the viscose that injects this adjustment part and this lens barrel intersection.
CNB2005100678133A 2005-04-26 2005-04-26 Lens with adjustable core Expired - Fee Related CN100368850C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100678133A CN100368850C (en) 2005-04-26 2005-04-26 Lens with adjustable core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100678133A CN100368850C (en) 2005-04-26 2005-04-26 Lens with adjustable core

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CN1854783A true CN1854783A (en) 2006-11-01
CN100368850C CN100368850C (en) 2008-02-13

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7746576B2 (en) 2007-09-14 2010-06-29 Hon Hai Precision Industry Co., Ltd. Lens module
TWI468839B (en) * 2012-06-20 2015-01-11 Hon Hai Prec Ind Co Ltd Image lens fixed structure
CN105739048A (en) * 2014-12-12 2016-07-06 信泰光学(深圳)有限公司 Coaxial focusing lens group adjusting mechanism
CN106054344A (en) * 2016-08-15 2016-10-26 中山联合光电科技股份有限公司 Zoom lens device
CN108956100A (en) * 2018-08-13 2018-12-07 合肥英睿系统技术有限公司 A kind of laser calibrating equipment
CN110161649A (en) * 2019-06-28 2019-08-23 中山联合光电科技股份有限公司 A kind of structure of quick adjusting camera lens concentricity
CN110579852A (en) * 2019-09-29 2019-12-17 腾龙光学(佛山)有限公司 Selective core-adjusting image-resolving structure and core-adjusting lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510086C2 (en) * 1985-03-20 1987-02-19 Isco-Optic GmbH, 3400 Göttingen Adjustment device for a varifocal projection lens
JP2001344806A (en) * 2000-05-26 2001-12-14 Olympus Optical Co Ltd Lens frame of optical pickup device
JP3762666B2 (en) * 2001-07-04 2006-04-05 ペンタックス株式会社 Lens optical axis adjustment frame structure
US6813093B2 (en) * 2002-02-27 2004-11-02 Olympus Corporation Lens barrel
JP3867894B2 (en) * 2001-11-08 2007-01-17 株式会社リコー Alignment device
JP3914420B2 (en) * 2001-11-26 2007-05-16 株式会社リコー Optical unit eccentricity adjustment mechanism

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7746576B2 (en) 2007-09-14 2010-06-29 Hon Hai Precision Industry Co., Ltd. Lens module
TWI468839B (en) * 2012-06-20 2015-01-11 Hon Hai Prec Ind Co Ltd Image lens fixed structure
CN105739048A (en) * 2014-12-12 2016-07-06 信泰光学(深圳)有限公司 Coaxial focusing lens group adjusting mechanism
CN106054344A (en) * 2016-08-15 2016-10-26 中山联合光电科技股份有限公司 Zoom lens device
CN108956100A (en) * 2018-08-13 2018-12-07 合肥英睿系统技术有限公司 A kind of laser calibrating equipment
CN108956100B (en) * 2018-08-13 2020-12-04 合肥英睿系统技术有限公司 Laser calibrating device
CN110161649A (en) * 2019-06-28 2019-08-23 中山联合光电科技股份有限公司 A kind of structure of quick adjusting camera lens concentricity
CN110579852A (en) * 2019-09-29 2019-12-17 腾龙光学(佛山)有限公司 Selective core-adjusting image-resolving structure and core-adjusting lens
CN110579852B (en) * 2019-09-29 2024-01-30 腾龙光学(佛山)有限公司 Selective type aligning resolution structure and aligning lens

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Owner name: XINTHAI OPTICAL (SHENZHEN) CO., LTD.

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Address before: No. 22, No. 3, south two road, Taichung District, Taichung County, Taichung County, Taichung County, Taiwan

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Termination date: 20120426