CN102162899B - Integral double-lens focusing device - Google Patents
Integral double-lens focusing device Download PDFInfo
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- CN102162899B CN102162899B CN2011101375966A CN201110137596A CN102162899B CN 102162899 B CN102162899 B CN 102162899B CN 2011101375966 A CN2011101375966 A CN 2011101375966A CN 201110137596 A CN201110137596 A CN 201110137596A CN 102162899 B CN102162899 B CN 102162899B
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- lens adjustment
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Abstract
The invention provides an integral double-lens focusing device. A lens adjustment frame is fixed on a lens adjustment base; a pair of internal sliding core and external sliding core which is in two-dimensional sliding fit with each other are arranged inside the lens adjustment frame; the diameter position of the internal sliding core is riveted with two dump bolts serving as guide supports; a large lens adjustment internal cylinder and a small lens adjustment internal cylinder which are used for assembling and fixing lenses are arranged in the corresponding internal sliding core; the two lens adjustment cylinders are in sliding fit with each other; and a pair of sliding sleeves inside which compression springs are arranged are arranged inside the two adjacent sides of the lens adjustment frame respectively, and a high-precision knob fine tuning mechanism is arranged in the middle of the other two adjacent sides of the lens adjustment frame respectively to realize the fine tuning of the lenses in the two-dimensional direction. The centers of optical axes of the two lenses are kept concentric all the time in the fine tuning process. The integral double-lens focusing device has the advantages of effectively realizing respective focusing and matched focusing of the double lenses, controlling the precision of manual focusing to be below 0.01mm and even lower, realizing the precise adjustment of the whole lens group device in the two-dimensional direction and controlling the precision to be below 0.05mm.
Description
Technical field
The present invention relates to a kind of lens focusing device, particularly a kind of integral type double lens focus control.
Background technology
Being one in the optical system mid-focal length and often using, also is a parameter the most basic.In debuging process, requiring must be accurate, definite.And lens are formed the basic element of character of optical system, and the focal length of lens or lens combination must become the important parameter of confirming its object-image relation.Simultaneously, whether the focal length of lens is accurate, and the accuracy with the overall focal length that directly has influence on whole optical system this shows, the accurate adjusting of the focal length of lens is very important.
At present; Common both at home and abroad lens focusing device or have the lens adjustment rack of focusing function; Mostly be fixing single lens, can realize the focal length one dimension regulatory function of single lens, then; The device or the adjustment rack of a plurality of identical functions are connected together linearly, to realize the design function of whole optical system.But more deep along with correlative study, people are strict all the more to the accuracy requirement of the focal length of lens in the optical system, and this makes the drawback of traditional one dimension focus adjusting mechanism display gradually.Mainly show:
Conventional lenses focus control focal length precision is not high, and optical axis center is unstable, behind particularly a plurality of combination of lensess; Optical axis center is difficult to fix more, in the adjustment process, and lens of every adjusting; Other lenses also must be adjusted again successively, has increased unnecessary workload virtually.In addition, on the adjusting bracket or the fixed form of adjusting gear, what have can not be completely fixed, and in a single day fixing of having just can not be regulated once more, and the work limitation is bigger.
Summary of the invention
For addressing the above problem, the purpose of this invention is to provide a kind of integral type double lens focus control, be beneficial to realize two lens are regulated respectively independently, thereby guaranteed the accuracy requirement of whole optical system focal length.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts provides a kind of integral type double lens focus control; Fixed lens adjusting bracket on the lens adjustment seat; Lens adjustment frame inside is provided with interior sliding core that two dimension is slidingly matched, sliding core outward, and riveted two dump bolts in interior sliding core diameter position support as guiding; Accordingly be provided with to install and fix in second lens that second lens use and regulate tube in interior sliding in-core one side; In sliding in-core opposite side be provided with to install and fix in first lens that first lens use and regulate tube, regulate in first lens that to regulate between the tube in tube and second lens be to be slidingly matched relatively, regulating a periphery threaded engagement in first lens has first lens to regulate tube outward; Regulating a tube periphery threaded engagement in second lens has second lens to regulate tube outward, outside first lens, regulates outer Monday of the side of regulating tube outside the tube and second lens and is respectively equipped with the adjusting handle; In middle part, the adjacent both sides of lens adjustment frame, be separately installed with the sliding sleeve that a pair of inside is provided with stage clip, respectively adorn a fine setting screw, cooperate with vernier adjustment knob and form micromatic setting, keep two lens axis centres at middle part, the in addition adjacent both sides of lens adjustment frame.Vernier adjustment knob contacts with outer sliding core.
Effect of the present invention is to use this device not only can effectively realize twin-lensly focusing respectively and cooperating focusing; And the precision that makes manual focusing is controlled at below the 0.01mm; Even it is higher; And can also realize the accurate adjusting on the two-dimensional directional of whole lens combination device, precision can be controlled at below the 0.05mm.
Description of drawings
Fig. 1 double lens focus control of the present invention schematic appearance;
Fig. 2 double lens focus control of the present invention front view;
Fig. 3 double lens focus control of the present invention left view;
Fig. 4 double lens focus control of the present invention cut-open view.
Among the figure:
1. cover plate 2. pins 3. lens trim rings 4. first lens 5. first lens are regulated tube outward
6. interior sliding core 7. lens adjustment framves 8. lens adjustment seats 9. sliding sleeves
10. regulate tube 13. second lens in stage clip 11. outer sliding core 12. first lens
Regulate tube 16. adjusting handles outward 14. regulate tube 15. second lens in second lens
17. fine setting screw 18. vernier adjustment knobs
Embodiment
In conjunction with accompanying drawing and embodiment integral type double lens focus control structure of the present invention is explained.
The structure of integral type double lens focus control of the present invention is, fixed lens adjusting bracket on the lens adjustment seat, and lens adjustment frame inside is provided with the inside and outside sliding core that a pair of two dimension is slidingly matched; In two dump bolts of sliding core diameter position riveted, support as guiding, in interior sliding core 6, be provided with small one and large one two more accordingly and install and fix the lens adjustment inner core that lens are used; Be slidingly matched relatively between two lens adjustment tubes, promptly two lens are relative, and can control relative distance; Two lens adjustment tubes, one end outer rim has machining screw, pitch 0.1mm, in addition; Every lens adjustment tube outside all is provided with gathering sill; After inserting relatively, the dump bolt of riveted on interior sliding core can slide along the gathering sill direction, guaranteed that thus the glide direction of lens when adjustment is the radial direction in strict accordance with device or system optical axis.
In order to realize converting circumference into rectilinear motion; Be respectively equipped with a lens adjustment urceolus in the outside of two lens adjustment inner cores; Have in two urceolus and the corresponding machining screw of lens adjustment inner core, pitch 0.1mm, and; In order to be easy to manual adjustment, be provided with a little adjusting handle near the position in the outside at each lens adjustment urceolus.Simultaneously; In order to realize for the optical system two-dimensional adjustment of method phase direction radially; Lens adjustment device of the present invention is separately installed with the sliding sleeve that stage clip is equipped with in a pair of inside in the inside on the adjacent both sides of lens adjustment frame; At middle part, the in addition adjacent both sides of lens adjustment frame a high-precision knob micro-adjusting mechanism is installed respectively, is realized the fine setting on the lens two-dimensional directional.The optical axis center of two lens remains with one heart in trim process.
As shown in Figure 4; Integral type double lens focus control of the present invention; Fixed lens adjusting bracket 7 on lens adjustment seat 8; Lens adjustment frame 7 inside are provided with interior sliding core 6 that two dimension is slidingly matched, sliding core 11 outward, and two dump bolts of interior sliding core 6 diametrical position riveteds support as guiding; A side is provided with and regulates tube 14 in second lens that install and fix second lens, 13 usefulness in interior sliding core 6 accordingly; In in the sliding core 6 opposite sides be provided with to regulate in first lens that install and fix first lens, 4 usefulness and regulate in tube 12, the first lens that to regulate between the tube 14 in tube 12 and second lens be to be slidingly matched relatively, regulating tube 12 periphery threaded engagement in first lens has first lens to regulate tins 5 outward; Regulating tube 14 periphery threaded engagement in second lens has second lens to regulate tube 15 outward, outside first lens, regulates outer Monday of the side of regulating tube 15 outside tube 5 and second lens and is respectively equipped with and regulates handle 16; In middle part, lens adjustment frame 7 adjacent both sides, be separately installed with the sliding sleeve 9 that a pair of inside is provided with stage clip 10; Respectively adorn a fine setting screw 17 in middle part, position, adjacent both sides in addition at lens adjustment frame 7; Be combined with vernier adjustment knob 18 with fine setting screw 17 and form micromatic setting; Keep first lens 4 and second lens, 13 2 lens axis centres, vernier adjustment knob 18 contacts with outer sliding core 11.
Regulating in said first lens in tube 12 and second lens is to be slidingly matched relatively between the adjusting tube 14; In first lens, regulate to regulate on tube 14 outer walls in tube 12 and second lens and be respectively equipped with two gathering sills; In first lens, regulate tube 12 inwalls and be provided with half gathering sill; Regulate tube 14 outer wall gathering sills in second lens and insert adjusting tube 12 half gathering sills in first lens; In be respectively equipped with on the mutual perpendicular diameter position of sliding core 6 and be used to the pin 2 that leads and support, said pin 2 slides along being located at the gathering sill of regulating tube 12 outer walls in first lens.
Integral type double lens focus control of the present invention; After mounting hole on the scioptics adjusting bracket 7 is fixed on described double lens focus control in the middle of the optical system; Can the lens axis center be overlapped with the light path center through regulating two-dimentional vernier adjustment knob, regulate outward in tube 5 and first lens through adjusting handle 16 rotations first lens again and regulate the focusing that tube 12 is accomplished first lens 4.The lens axis center remains with light path light axis and coincides in the focusing process.The precision of focusing can be controlled in the 0.01mm.
Earlier two are regulated outward in tube 5 and first lens in the adjusting tins 12 according to first lens 4 of the selected diameter 15mm of light path design needs and second lens 13 double lens focus control first lens of packing into.Lens adjustment seat 8 is provided with two mounting holes, and available two M4 screws are fixed on whole device in the middle of the light path system that needs focusing.Note the lens axis center parallelly during installation, after installing, this double lens focus control optical axis center accurately is fixed to the light path light axis center through regulating two two-dimentional vernier adjustment knobs 18 with light path light axis.Alternately regulate one by one respectively during adjusting, till reaching ideal position.More than work to accomplish and to begin later focusing; In second lens, regulate tube 15 sides outside adjusting tube 14 and second lens and all be provided with the locking jackscrew near lens adjustment frame 7; The focusing of second lens 13 relies on the interior adjusting tube of rotation second lens 14 and second lens to regulate tube 15 outward and realizes; Earlier back-out the fixing and locking jackscrew before beginning to focus with allen key; Move again and regulate handle 16, make second lens 13 second in regulate tube 14 and second lens and regulate the focusing that tube 15 rotations realize second lens 13 outward, move to direction when regulating tins 15 lens when turning clockwise outside second lens away from lens adjustment frame 7; Otherwise then move to the direction near lens adjustment frame 7, moving range is 0～12mm.During adjusting, two lens should be regulated respectively, when the focal length of lens produces a desired effect, stop to regulate, and with allen key the jackscrew that back-out before are locked once more, and so far, whole device focusing process finishes.
Claims (2)
1. integral type double lens focus control; It is characterized in that: go up fixed lens adjusting bracket (7) at lens adjustment seat (8); Lens adjustment frame (7) inside is provided with interior sliding core (6) that two dimension is slidingly matched, sliding core (11) outward; Two dump bolts of interior sliding core (6) diametrical position riveted; Support as guiding, a side is provided with and regulates tube (14) in second lens that install and fix second lens (13) usefulness in interior sliding core (6) accordingly, and the interior opposite side of interior sliding core (6) is provided with and regulates tube (12) in first lens that install and fix first lens (4) usefulness; Regulating in first lens in the tube (12) and second lens is to be slidingly matched relatively between the adjusting tube (14); Regulating tube (a 12) periphery threaded engagement in first lens has first lens to regulate tube (5) outward, and regulating tube (a 14) periphery threaded engagement in second lens has second lens to regulate tube (15) outward, outside first lens, regulates outer Monday of the side of regulating tube (15) outside the tube (5) and second lens and is respectively equipped with and regulates handle (16); In middle part, the adjacent both sides of lens adjustment frame (7), be separately installed with the sliding sleeve (9) that a pair of inside is provided with stage clip (10); Respectively adorn a fine setting screw (17) in middle part, position, adjacent both sides in addition at lens adjustment frame (7); Fine setting screw (17) and the vernier adjustment knob (18) that cooperates are with it formed micromatic setting; Keep first lens (4) and second lens (13) two lens axis centres, vernier adjustment knob (18) contacts with outer sliding core (11).
2. integral type double lens focus control according to claim 1; It is characterized in that: regulating in said first lens in the tube (12) and second lens is to be slidingly matched relatively between the adjusting tube (14); In first lens, regulate to regulate in the tube (12) and second lens on tube (14) outer wall and be respectively equipped with two gathering sills; In first lens, regulate tube (12) inwall and be provided with half gathering sill; Regulate tube (14) outer wall gathering sill in second lens and insert adjusting tube (12) half gathering sills in first lens; In be respectively equipped with on the mutual perpendicular diameter position of sliding core (6) and be used to the pin (2) that leads and support, said pin (2) slides along being located at the gathering sill of regulating tube (12) outer wall in first lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101375966A CN102162899B (en) | 2011-05-23 | 2011-05-23 | Integral double-lens focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101375966A CN102162899B (en) | 2011-05-23 | 2011-05-23 | Integral double-lens focusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162899A CN102162899A (en) | 2011-08-24 |
| CN102162899B true CN102162899B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101375966A Active CN102162899B (en) | 2011-05-23 | 2011-05-23 | Integral double-lens focusing device |
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| CN (1) | CN102162899B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345036B (en) * | 2013-07-17 | 2015-04-01 | 中国科学院半导体研究所 | Cylindrical lens focal length adjusting device |
| CN110543062B (en) * | 2019-06-26 | 2024-02-02 | 广州长步道光电科技有限公司 | Focusing device and lens comprising same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001126305A (en) * | 1999-10-29 | 2001-05-11 | Fujitsu Ltd | Optical disk device and its lens adjusting method |
| KR100758612B1 (en) * | 2006-12-22 | 2007-09-13 | 주식회사 한광옵토 | Vari-focal lens |
| CN101419328B (en) * | 2007-10-23 | 2011-03-23 | 鸿富锦精密工业（深圳）有限公司 | Lens module, camera module and portable electronic products |
| CN101225944B (en) * | 2008-02-04 | 2010-09-29 | 北京星光影视设备科技股份有限公司 | Focusing component of zooming imaging lamp |
| CN202075486U (en) * | 2011-05-23 | 2011-12-14 | 天津港东科技发展股份有限公司 | Integral type double lens focusing apparatus |
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| CN102162899A (en) | 2011-08-24 |
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Address after: 300384 EF unit two, G block, Xinmao science and Technology Park, Huayuan Industrial Area, Nankai District, Tianjin Patentee after: East Polytron Technologies Inc of Tianjin port Address before: 300384 EF unit two, G block, Xinmao science and Technology Park, Huayuan Industrial Area, Nankai District, Tianjin Patentee before: Tianjin Gangdong Technology Development Co., Ltd. |
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