CN101907759B - High-precision focusing component used for infrared lens - Google Patents
High-precision focusing component used for infrared lens Download PDFInfo
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- CN101907759B CN101907759B CN2009100849652A CN200910084965A CN101907759B CN 101907759 B CN101907759 B CN 101907759B CN 2009100849652 A CN2009100849652 A CN 2009100849652A CN 200910084965 A CN200910084965 A CN 200910084965A CN 101907759 B CN101907759 B CN 101907759B
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Abstract
The invention discloses a high-precision focusing component used for an infrared lens. The high-precision focusing component comprises a substrate, a focusing mechanism and an auxiliary calibration mechanism; a focusing nut of the focusing mechanism is fixedly arranged outside a focusing barrel and is movably arranged in an inner cavity of the substrate; a focusing gear is fixed on the focusing nut; a limiting block is fixedly arranged on the focusing gear; a motor is fixed on the substrate; a pinion is fixed on an output shaft of the motor and is engaged with the focusing gear; a pressure spring of the auxiliary calibration mechanism is sleeved on a bearing frame and is positioned in a bearing pressure base; a bearing is positioned on the upper part of the bearing frame through a pin; and the bearing pressure base is fixed on the substrate. The high-precision focusing component has the advantages that: the focusing mechanism, and the auxiliary calibration mechanism used for adjusting optical axis offset are arranged, so that the optical axis offset in the focusing process can be effectively reduced, the focusing quality can be improved, and the use is convenient by controlling the motor to perform electric focusing through a switch and by adjusting the arrangement angle of the whole auxiliary calibration mechanism and the pressure of the pressure spring.
Description
Technical field
The present invention relates to optical gauge, particularly a kind of high-precision focusing component that is used for infrared lens.
Background technology
The focusing component of infrared lens normally utilizes the rectilinear motion that is transformed into lens by the helical motion of manual adjustments, realize the focusing process to camera lens, also have to adopt motorized adjustment, but the precision of focusing is all lower usually.Simultaneously, in the focusing process, the axis that is moved lens can not remain intact with the optical axis of whole camera lens fully and overlap, and upwards produces very big skew in the footpath of design optical axis, and just can not adjust after assembling again.The infrared lens product high for precision prescribed just can only screen, and product qualified rate is low, causes serious waste, wastes time and energy, and is unwell to large-scale production.In addition, because the restriction of level of processing at present, be difficult to make the processing of part can reach a desirable precision and guarantee that its optical axis has a small side-play amount.At present, infrared imagery technique is growing, and is more and more higher to the requirement of imaging; light shaft offset amount in the focusing process is required more and more accurate; especially in the Military Application product, the structure of common lens focusing component is difficult to satisfy this high precision, requirement of massive production.Therefore the focusing component of conventional lenses also is difficult to satisfy market and user's demand at present.
Summary of the invention
The objective of the invention is to overcome the defective that existing technology exists, a kind of focusing accuracy height is provided, can effectively reduce light shaft offset amount in the focusing process, the high-precision focusing component that is used for infrared lens easy to use.
For achieving the above object, the high-precision focusing component that is used for infrared lens provided by the invention, comprise matrix, the inner chamber of described matrix is equipped with focusing drawtube, described focusing drawtube internal fixation is equipped with mobile lens, described matrix is provided with gathering sill and feather key, described feather key is arranged in described gathering sill and is fixedly mounted on the described focusing drawtube, also include focus adjusting mechanism and be used to regulate the auxiliary aligning gear of light shaft offset amount, wherein: described focus adjusting mechanism comprises motor, motor fixing plate, pinion wheel, focusing gear, focusing nut, pressure ring and limited block; The inner face of described matrix is provided with the internal thread that matches with the external thread of described focusing nut, described focusing nut is movably arranged in the inner chamber of described matrix, the outer face of described focusing drawtube is provided with the external thread that matches with the internal thread of described focusing nut, described focusing nut is movably arranged on the outside of described focusing drawtube, and described focusing gear is fixed on the described focusing nut by described pressure ring; Described limited block is fixedly mounted on the outer rim of described focusing gear; Described motor is fixed on the described matrix by described motor fixing plate, and described pinion wheel is fixed on the output shaft of described motor and with described focusing gear and is meshed; Described auxiliary aligning gear is installed on the described matrix.
The high-precision focusing component that is used for infrared lens of the present invention, wherein said auxiliary aligning gear comprises bearing wedge, bearing pin, bearing, stage clip and bearing bracket stand, wherein, the end face of described bearing wedge is provided with through hole, one end of described bearing bracket stand is provided with first groove, and the other end is provided with step and stretches out in the hole of described bearing wedge end face, and described compression spring sleeve is contained on the described bearing bracket stand, one end and described step offset, and the inner face of the other end and described bearing wedge offsets; Described matrix is provided with second groove, and described bearing places described first groove, and described bearing pin passes described bearing fixing on bearing bracket stand, places described second groove.
The high-precision focusing component that is used for infrared lens of the present invention, fixed installation is useful on each 1 pair of the switch of control described motor forward and reverse operation and diode on the wherein said matrix, and described diode and described switch and described motor electricity respectively link to each other and insert in the electric power loop of described motor.
The high-precision focusing component that is used for infrared lens of the present invention, wherein said auxiliary aligning gear is provided with a pair of, is installed in respectively on the position of 30 ° of described matrix underpart vertical axis both sides.
The high-precision focusing component that is used for infrared lens of the present invention, the internal thread of the external thread of wherein said focusing drawtube and described focusing nut adopt the bull acme thread to match.
The high-precision focusing component that is used for infrared lens of the present invention, wherein said mobile lens scioptics trim ring is fixed in the described focusing drawtube,
The high-precision focusing component that is used for infrared lens of the present invention, wherein said motor fixing plate is fixed on the described matrix by button-headed screw, plain washer, spring washer.
The high-precision focusing component that is used for infrared lens of the present invention, wherein said bearing wedge is fixed on the described matrix by second half round head screw, another plain washer, another spring washer.
The high-precision focusing component that is used for infrared lens of the present invention, wherein said switch is fixed on the described matrix by fillister head screw.
The high-precision focusing component that is used for infrared lens of the present invention, its advantage is: owing to be provided with focus adjusting mechanism and be used to regulate the auxiliary aligning gear of light shaft offset amount, carry out electronic focusing by switch control motor, can finish high-quality focusing process.Use auxiliary aligning gear, regulate whole device angle of installing and the size of adjusting stage clip pressure by it, can remedy the defective that part processing is brought, effectively reduce light shaft offset amount in the focusing process, focusing quality height uses very convenient.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, in the hope of purpose of the present invention, feature and advantage are obtained more deep understanding.
Description of drawings
Fig. 1 is used for the front view of the high-precision focusing component of infrared lens for the present invention;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is used for the vertical view of the high-precision focusing component of infrared lens for the present invention;
Fig. 4 is the B-B cut-open view of Fig. 3.
Embodiment
The Reference numeral of part is respectively: matrix-1, focusing drawtube-2, mobile lens-3, lens trim ring-4, feather key-5, focusing nut-6, focusing gear-7, pressure ring-8, limited block-9, bearing wedge-10, bearing pin-11, bearing-12, stage clip-13, bearing bracket stand-14, motor fixing plate-15, pinion wheel-16, motor-17, switch-18, diode-19, fillister head screw-20, first button-headed screw-21, first plain washer-22, first spring washer-23, second button-headed screw-24, second plain washer-25, second spring washer-26, lead 27, auxiliary aligning gear 28.
Referring to Fig. 1, high-precision focusing component of the present invention comprises matrix 1, the inner chamber of matrix 1 is movably installed with focusing drawtube 2, mobile lens 3 scioptics trim rings 4 are fixed in the focusing drawtube 2, matrix 1 is provided with gathering sill and feather key 5, and feather key 5 is arranged in gathering sill and is fixedly mounted on the focusing drawtube 2.
Be used for the embodiment of the high-precision focusing component of infrared lens in the present invention, focus adjusting mechanism and auxiliary aligning gear 28 are housed on the matrix 1.
Focus adjusting mechanism comprises motor 17, motor fixing plate 15, pinion wheel 16, focusing gear 7, focusing nut 6, pressure ring 8 and limited block 9.The inner face of matrix 1 is provided with the internal thread that matches with the external thread of the nut 6 of focusing, focusing nut 6 is movably arranged in the inner chamber of matrix 1, the outer face of focusing drawtube 2 is provided with the external thread that matches with the internal thread of the nut 6 of focusing, focusing nut 6 is movably arranged on the outside of focusing drawtube 2, and focusing gear 7 is fixed on the focusing nut 6 by pressure ring 8.Limited block 9 is fixedly mounted on the outer rim of focusing gear 7.Motor 17 is installed on the motor fixing plate 15, is fixed on the matrix 1 by motor fixing plate 15 again, and pinion wheel 16 is fixed on the output shaft of motor and with focusing gear 7 and is meshed.
The embodiment that is used for the high-precision focusing component of infrared lens in the present invention, in conjunction with the accompanying drawings 2 and accompanying drawing 3, fixed installation is useful on the switch 18 of control motor 17 forward and reverse operations and diode 19 each 1 pair on the matrix 1, switch 18 adopts first button-headed screw 21, first plain washer 22, first spring washer 23 to be fixed on above the matrix 1, and diode 19 links to each other by lead 27 electricity respectively with motor 17 with switch 18 and inserts in the electric power loop of motor 17.
Referring to Fig. 2 and Fig. 4, a pair of auxiliary aligning gear of high-precision focusing component of the present invention comprises bearing wedge 10, bearing pin 11, bearing 12, stage clip 13, bearing bracket stand 14, button-headed screw 24, plain washer 25, spring washer 26 respectively.Wherein, the end face of bearing wedge 10 is provided with through hole, and an end of bearing bracket stand 14 is provided with first groove, the other end is provided with step and stretches out in the hole of bearing wedge 10 end faces, stage clip 13 is sleeved on the bearing bracket stand 14, and an end and step offset, and the inner face of the other end and bearing wedge 10 offsets.Matrix 1 is provided with second groove, and bearing 12 places first groove, and bearing pin 11 passes bearing 12, is fixed on the bearing bracket stand, places second groove.Bearing wedge 10 is fixed on the matrix 1 by second button-headed screw 24, second plain washer 25 and second spring washer 26.A pair of auxiliary aligning gear is positioned on the position of 30 ° of both sides of matrix 1 lower vertical axis.
The course of action that uses the high-precision focusing component that is used for infrared lens of the present invention to focus is:
The high-precision focusing component that is used for infrared lens in the present invention can effectively reduce focusing process light shaft offset amount, and by switch control motor, focusing quality height uses very convenient.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design proposal prerequisite of the present invention; common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (8)
1. high-precision focusing component that is used for infrared lens, comprise matrix (1), the inner chamber of described matrix (1) is equipped with focusing drawtube (2), described focusing drawtube (2) internal fixation is equipped with mobile lens (3), described matrix (1) is provided with gathering sill and feather key (5), described feather key (5) is arranged in described gathering sill and is fixedly mounted on the described focusing drawtube (2), it is characterized in that: also include focus adjusting mechanism and be used to regulate the auxiliary aligning gear of light shaft offset amount, wherein: described focus adjusting mechanism comprises motor (17), motor fixing plate (15), pinion wheel (16), focusing gear (7), focusing nut (6), pressure ring (8) and limited block (9); The inner face of described matrix (1) is provided with the internal thread that matches with the external thread of described focusing nut (6), described focusing nut (6) is movably arranged in the inner chamber of described matrix (1), the outer face of described focusing drawtube (2) is provided with the external thread that matches with the internal thread of described focusing nut (6), described focusing nut (6) is movably arranged on the outside of described focusing drawtube (2), and described focusing gear (7) is fixed on the described focusing nut (6) by described pressure ring (8); Described limited block (9) is fixedly mounted on the outer rim of described focusing gear (7); Described motor (17) is fixed on the described matrix (1) by described motor fixing plate (15), and described pinion wheel (16) is fixed on the output shaft of described motor (17) and with described focusing gear (7) and is meshed; Described auxiliary aligning gear comprises bearing wedge (10), bearing pin (11), bearing (12), stage clip (13) and bearing bracket stand (14), wherein, the end face of described bearing wedge (10) is provided with through hole, one end of described bearing bracket stand (14) is provided with first groove, the other end is provided with step and stretches out in the through hole of described bearing wedge (10) end face, described stage clip (13) is sleeved on the described bearing bracket stand (14), and an end and described step offset, and the inner face of the other end and described bearing wedge (10) offsets; Described matrix (1) is provided with second groove, and described bearing (12) places described first groove, and described bearing pin (11) passes described bearing (12), is fixed on the bearing bracket stand (14), places described second groove.
2. the high-precision focusing component that is used for infrared lens according to claim 1 is characterized in that: wherein said
Matrix (1) is gone up each 1 pair of switch (18) that fixed installation is useful on the forward and reverse operation of control described motor (17) and diode (19), and described diode (19) and described switch (18) and described motor (17) be electric respectively to link to each other and insert in the electric power loop of described motor (17).
3. the high-precision focusing component that is used for infrared lens according to claim 1 and 2 is characterized in that: wherein said auxiliary aligning gear is provided with a pair of, is installed in respectively on the position of 30 ° of described matrix (1) lower vertical axis both sides.
4. the high-precision focusing component that is used for infrared lens according to claim 3 is characterized in that: the internal thread of the external thread of wherein said focusing drawtube (2) and described focusing nut (6) adopts the bull acme thread to match.
5. the high-precision focusing component that is used for infrared lens according to claim 4 is characterized in that: wherein said mobile lens (3) scioptics trim ring (4) is fixed in the described focusing drawtube (2).
6. the high-precision focusing component that is used for infrared lens according to claim 5 is characterized in that: wherein said motor fixing plate (15) is fixed on the described matrix (1) by button-headed screw (21), plain washer (22) and spring washer (23).
7. the high-precision focusing component that is used for infrared lens according to claim 6 is characterized in that: wherein said bearing wedge (10) is fixed on the described matrix (1) by second half round head screw (24), another plain washer (25) and another spring washer (26).
8. the high-precision focusing component that is used for infrared lens according to claim 7 is characterized in that: wherein said switch (18) is fixed on the described matrix (1) by fillister head screw (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100849652A CN101907759B (en) | 2009-06-05 | 2009-06-05 | High-precision focusing component used for infrared lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100849652A CN101907759B (en) | 2009-06-05 | 2009-06-05 | High-precision focusing component used for infrared lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101907759A CN101907759A (en) | 2010-12-08 |
| CN101907759B true CN101907759B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100849652A Expired - Fee Related CN101907759B (en) | 2009-06-05 | 2009-06-05 | High-precision focusing component used for infrared lens |
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| Country | Link |
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| CN (1) | CN101907759B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5935066B2 (en) * | 2011-08-25 | 2016-06-15 | パナソニックＩｐマネジメント株式会社 | Lens barrel |
| CN102707543B (en) * | 2012-05-24 | 2015-03-18 | 上海锐势机器视觉科技有限公司 | External connection control device for manual iris lens |
| CN106123925B (en) * | 2016-08-24 | 2019-01-18 | 长春理工大学 | A kind of focal plane adjustment mechanism for Dynamic Star simulator star chart display device |
| CN107345917A (en) * | 2017-07-28 | 2017-11-14 | 贵州电网有限责任公司电力科学研究院 | A kind of workpiece microscopic defect detecting system |
| CN107367830A (en) * | 2017-07-28 | 2017-11-21 | 贵州电网有限责任公司电力科学研究院 | A kind of coaxial light microscope electric micro-inching focus control of monotubular and its focus adjustment method |
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2009
- 2009-06-05 CN CN2009100849652A patent/CN101907759B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101907759A (en) | 2010-12-08 |
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