CN101387731B - Mirror inclination fine tuning mechanism - Google Patents
Mirror inclination fine tuning mechanism Download PDFInfo
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- CN101387731B CN101387731B CN200810051311.5A CN200810051311A CN101387731B CN 101387731 B CN101387731 B CN 101387731B CN 200810051311 A CN200810051311 A CN 200810051311A CN 101387731 B CN101387731 B CN 101387731B
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- wedge
- reflector
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- steel sheet
- screw
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The invention relates to a reflector inclination angle fine tuning mechanism, which comprises a reflector seat, a base, a wedge block, an elastic steel sheet, locking screws and at least 1 fine tuning screw, wherein the base is provided with a plurality of locking screws; the reflecting mirror is fixed on one surface of the reflecting mirror seat; the elastic steel sheet is positioned at the through hole on the base, one end of the locking screw penetrates through the elastic steel sheet and the through hole on the base to be fixedly connected with the reflector mirror seat, and the locking screw is fixedly connected with the elastic steel sheet; the wedge block is arranged in a wedge-shaped groove on the other surface of the reflector seat; screw holes are formed in positions, corresponding to the wedge-shaped grooves, on the periphery of the base, and one end of the fine tuning screw is screwed in the screw holes and connected with the wedge blocks. The invention has simple structure, convenient processing and manufacturing, realizes the rotation of the reflecting mirror mainly through the wedge-shaped friction pair, and has high adjustment precision and strong practicability.
Description
Technical Field
The present invention relates to a tilt angle adjusting mechanism for a reflector, and more particularly to a tilt angle adjusting mechanism for a reflector.
Background
In an optical system, it is often necessary to adjust the direction of light irradiation using a mirror, and in order to make light incident on the mirror exit in a direction required by the system, it is necessary to adjust the direction of the mirror normal. Currently, a reflector inclination angle adjusting mechanism in an optical system adjusts a reflector by adopting a manual adjusting rod to change the inclination angle of the reflector, so that the aim of adjusting the light irradiation direction is fulfilled. However, such a mirror tilt adjustment mechanism is not high in adjustment accuracy, and the accuracy is not easily maintained.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a reflector inclination angle fine adjustment mechanism capable of precisely adjusting the inclination angle of a reflector.
In order to solve the technical problems, the reflector inclination angle fine adjustment mechanism comprises a reflector seat, a base, wedge blocks, elastic steel sheets, locking screws and at least 1 fine adjustment screw; the reflecting mirror is fixed on one surface of the reflecting mirror seat; the elastic steel sheet is positioned at the through hole on the base, one end of the locking screw penetrates through the elastic steel sheet and the through hole on the base to be fixedly connected with the reflector seat, and the locking screw is fixedly connected with the elastic steel sheet; the wedge block is arranged in a wedge-shaped groove on the other surface of the reflector seat; screw holes are formed in positions, corresponding to the wedge-shaped grooves, on the periphery of the base, and one end of the fine tuning screw is screwed in the screw holes and connected with the wedge blocks.
The invention adopts the locking screw to fix the rotation center of the reflecting mirror, and adopts the elastic steel sheet to realize the locking of the reflecting mirror; the inclination angle of the reflector can be changed by adjusting the fine adjustment screw to enable the wedge block to move in the wedge-shaped groove of the reflector seat. The pitch of the fine adjustment screw or the wedge angle of the wedge block is reduced, so that the adjustment sensitivity can be improved. The invention has simple structure, convenient processing and manufacturing, realizes the rotation of the reflecting mirror mainly through the wedge-shaped friction pair, and has high adjustment precision and strong practicability.
The elastic steel sheet is isolated from the reflector seat by a first spherical washer and a first conical washer, and the first spherical washer is fixedly arranged on the reflector seat by a pin; the head of the locking screw is isolated from the elastic steel sheet by a second spherical washer and a second conical washer so as to adapt to the inclination of the locking screw.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a front view of a mirror tilt adjustment mechanism of the present invention.
Fig. 2 is a cross-sectional view taken along A-A of fig. 1.
Detailed Description
Example 1
As shown in fig. 1 and 2, the mirror inclination angle fine tuning mechanism of the present invention comprises a base 1, a mirror base 3, a wedge block 8, an elastic steel sheet 10, a locking screw 13 and at least 1 fine tuning screw 9; the reflector 2 is pressed and fixed on one surface of the reflector seat 3 by a pressing block 4. The elastic steel sheet 10 is positioned at the through hole on the base 1, and one end of the locking screw 13 passes through the elastic steel sheet 10 and the through hole on the base 1 to be fixedly connected with the reflector seat 3. The first spherical washer 6 is fixedly arranged on the reflector seat 3 by adopting the pin 5; the elastic steel sheet 10 is isolated from the first spherical washer 6 by the first conical washer 7, and the screw head is isolated from the elastic steel sheet 10 by the second spherical washer 12 and the second conical washer 11 so as to adapt to the inclination of the locking screw 13. The reflector 2 and the reflector seat 3 can be round or polygonal, and the other surface of the reflector seat 3 can be provided with 1, 2, 3, 4 or 6 wedge-shaped grooves 14. When the number of the wedge grooves 14 is 1, the trimming screw 9 is adjusted, and one-dimensional inclination adjustment of the reflecting mirror 2 can be realized. When the number of the wedge grooves 14 is 2, the longitudinal center lines of the two wedge grooves 14 are perpendicular to each other, and the rotation center of the mirror 2 is located at the intersection of the longitudinal center lines of the two wedge grooves 14; when the number of the wedge grooves 14 is 3 or more, the positions of the wedge grooves 14 on the mirror base 3 are uniformly distributed, and the longitudinal center lines of all the wedge grooves 14 intersect at a point at which the rotation center of the mirror 2 is located; by adjusting the fine adjustment screw 9, two-dimensional inclination adjustment of the mirror 2 can be achieved. Wedge 8 is mounted in wedge groove 14; screw holes are formed in the periphery 15 of the base 1 at positions corresponding to the wedge grooves 14, and one end of the fine adjustment screw 9 is screwed into the screw holes and connected to the wedge 8.
The reflector inclination angle fine tuning mechanism mainly realizes rotation of the reflector through the wedge friction pair, and the rotation angle precision of the reflector is less than 1'.
The inclination angle fine tuning mechanism of the reflector can replace a fine tuning screw 9 by a motor, and realizes the adjustment of the inclination angle of the reflector in an electric control mode.
Wedge 8 wedge angle and trim screw 9 determination:
the fine tuning range of the reflector is required to be within + -30 'according to the position of the reflector in the light path, and the adjustment precision is less than 1'.
Where β is the adjustment accuracy of the mirror, and H is the displacement of the fine adjustment screw 9.
To achieve the accuracy of adjustment, it is actually required to reduce the displacement of the fine adjustment screw 9 to a required minute displacement in the vertical direction of the wedge 8.
Taking half the adjustment accuracy, i.e. beta=0.5 ", substituting formula (1) gives h=0.00016,
wherein: 1-is the movement amount of the wedge block in the vertical direction;
t-adjusting the pitch of the screw;
-adjusting the angle of rotation of the screw;
wedge angle of alpha-wedge block
As can be seen from the above, reducing the pitch t of the fine adjustment screw 9 and the wedge angle α of the smaller wedge can improve the adjustment sensitivity when the rotation angle of the fine adjustment screw 9 is fixed. In the present invention, the fine tuning screw 9 pitch may be selected to be t=0.75.
In order to enable the wedge angle of the wedge block 8 to be self-locked without automatically sliding out, stable adjustment is kept, and the wedge angle of the wedge block 8 should meet the self-locking condition of the inclined plane, namely, the wedge angle alpha of the wedge block 8 is smaller than or equal to the friction angle theta.
The tangent of the friction angle is equal to the coefficient of static sliding friction.
Claims (2)
1. A reflector inclination angle fine tuning mechanism comprises a reflector seat (3) and a base (1); the reflector (2) is fixed on one surface of the reflector seat (3); the device is characterized by further comprising a wedge block (8), an elastic steel sheet (10), a locking screw (13) and at least 1 fine adjustment screw (9); the elastic steel sheet (10) is positioned at a through hole on the base (1), one end of the locking screw (13) penetrates through the elastic steel sheet (10) and the through hole on the base (1) to be fixedly connected with the reflector mirror base (3), and the locking screw (13) is fixedly connected with the elastic steel sheet (10); the wedge block (8) is arranged in a wedge-shaped groove (14) on the other surface of the reflector seat (3); screw holes are formed in positions, corresponding to the wedge-shaped grooves (14), on the periphery (15) of the base (1), and one end of the fine adjustment screw (9) is screwed in the screw holes and connected with the wedge blocks (8).
2. The mirror tilt angle fine tuning mechanism according to claim 1, wherein a first spherical washer (6) and a first conical washer (7) are adopted to isolate the elastic steel sheet (10) from the mirror base (3), and the first spherical washer (6) is fixedly arranged on the mirror base (3) by a pin (5); the head of the locking screw (13) is isolated from the elastic steel sheet (10) by a second spherical washer (12) and a second conical washer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051311.5A CN101387731B (en) | 2008-10-22 | 2008-10-22 | Mirror inclination fine tuning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051311.5A CN101387731B (en) | 2008-10-22 | 2008-10-22 | Mirror inclination fine tuning mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101387731A CN101387731A (en) | 2009-03-18 |
| CN101387731B true CN101387731B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810051311.5A Active CN101387731B (en) | 2008-10-22 | 2008-10-22 | Mirror inclination fine tuning mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN101387731B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859015B (en) * | 2010-07-09 | 2012-01-25 | 皇明太阳能股份有限公司 | Shape regulating device and regulating method thereof of unit reflecting mirror |
| CN102253441B (en) * | 2011-01-15 | 2014-09-03 | 合肥市百胜科技发展股份有限公司 | Light source reflector |
| CN102662224A (en) * | 2012-05-04 | 2012-09-12 | 中国科学院长春光学精密机械与物理研究所 | Flexible focusing lens support component of space optical remote sensor |
| CN103091815A (en) * | 2013-01-07 | 2013-05-08 | 四川大学 | Michelson interferometer stationary mirror friction wheel safety adjusting screw |
| CN103487911B (en) * | 2013-10-11 | 2015-10-28 | 复旦大学 | From axle optical element precision positioning adjusting gear |
| CN104570273A (en) * | 2013-10-24 | 2015-04-29 | 张家港恩达通讯科技有限公司 | Optical adjustment structure |
| CN103926673B (en) * | 2014-03-27 | 2016-07-06 | 中国科学院长春光学精密机械与物理研究所 | A kind of adjusting process of multi-faceted atmospheric remote sensing ultraviolet imager reflection axicon lens |
| CN104977690A (en) * | 2015-06-24 | 2015-10-14 | 中国科学院西安光学精密机械研究所 | Space pitch and azimuth two-dimensional micro-adjustment tooling |
| CN106950691B (en) * | 2017-03-20 | 2019-11-29 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | A kind of optical path compensation device |
| CN107907979A (en) * | 2017-11-17 | 2018-04-13 | 北京长峰科威光电技术有限公司 | A kind of space optical axis offset method of refrigeration mode infrared thermal imaging camera lens |
| CN108169871B (en) * | 2017-12-18 | 2020-05-05 | 中国航空工业集团公司洛阳电光设备研究所 | Method for assembling and adjusting forehead reflector |
| CN109962032B (en) * | 2017-12-25 | 2021-05-14 | 长春长光华大智造测序设备有限公司 | Precise leveling adsorption table |
| CN108227175B (en) * | 2018-03-16 | 2024-02-20 | 南通斯密特森光电科技有限公司 | Astronomical telescope with adjustable main reflector |
| CN111219570A (en) * | 2018-11-27 | 2020-06-02 | 西安华科光电有限公司 | Angle adjusting mechanism of optical instrument |
| CN110596848A (en) * | 2019-10-22 | 2019-12-20 | 中国科学院上海光学精密机械研究所 | Vibration-proof two-dimensional optical adjusting frame and using method |
| CN113933989B (en) * | 2021-12-16 | 2022-03-15 | 北京瑞控信科技有限公司 | Two-dimensional quick reflector and locking structure thereof |
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2008
- 2008-10-22 CN CN200810051311.5A patent/CN101387731B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001013440A (en) * | 1999-06-28 | 2001-01-19 | Ricoh Co Ltd | Polygon scanner |
| CN2479528Y (en) * | 2001-06-08 | 2002-02-27 | 王兴华 | Focusing device of scanning apparatus for medical infrared thermal imaging dianostic system |
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| CN101387731A (en) | 2009-03-18 |
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