CN1949017A - Projecting optical system for dynamic angle testing device - Google Patents
Projecting optical system for dynamic angle testing device Download PDFInfo
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- CN1949017A CN1949017A CN 200610118054 CN200610118054A CN1949017A CN 1949017 A CN1949017 A CN 1949017A CN 200610118054 CN200610118054 CN 200610118054 CN 200610118054 A CN200610118054 A CN 200610118054A CN 1949017 A CN1949017 A CN 1949017A
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- refractor
- protruding
- optical system
- recessed
- curvature
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Abstract
The invention discloses dynamic goniometer projection optics. It adopts five lenses made by crown glass and dense flint glass, positive-negative-positive structure. And it has successfully applied in FY-4 high precision dynamic goniometer system in our country, gains good removing spherical aberration and coma aberration at +- nine degree visual field, 0.622 mum-0.642mum wave band, meanwhile corrects curvature of field and distortion. The optical system has simple structure of which processing, installing correction can be solved by conventional technique.
Description
Technical field
The present invention relates to optical element, system, specifically be meant a kind of projection optical system that is used for dynamic angle testing device.
Background technology
The design of projection optics is based on double gauss (double Gauss) system.The aperture of system should with leave maximum output behind the condenser and distribute and be complementary.And big visual field object lens optical projection system often exists the serious curvature of field and aberration.As United States Patent (USP) 5157553A (binocular vision system projector) and 5386312A (projection lens systems of two positive light cokes) all is typical optical projection system, adopts the lens Negative-Positive-Negative structure of 5 chips.The former adopts the heavy-lanthanide flint of high-refractivity and low-dispersion and dense flint glass to come color difference eliminating, but still has the serious curvature of field and aberration in various degree, and the heavy-lanthanide flint cost is very high simultaneously; The latter adopts flint glass and crown glass to make up and eliminates aberration, but still has the curvature of field.
In the optical projection system of big visual field, how to proofread and correct the curvature of field and seem particularly important in optical projection system with other aberration of elimination.Projection optical system will be carried out imaging in big field range at first should consider the influence to image quality of the optical system curvature of field and aberration.
Summary of the invention
Based on some problems of above-mentioned existing optical projection system existence, but the objective of the invention is to propose a kind of color difference eliminating and the projection optical system of proofreading and correct the curvature of field, thereby realize the kinetic measurement of angle in the big visual field.
Of the present invention ± 9 ° visual field projection optical system as shown in Figure 1, optical system is made up of first protruding refractor 1, second protruding refractor 2, first recessed refractor the 3, the 3rd protruding refractor 4, the second recessed refractor 5 in order from object space to image planes.
From the light beam of object space through first protruding refractor 1, second protruding refractor 2, first recessed refractor the 3, the 3rd protruding refractor 4, the second recessed refractor 5 directive image planes.Eliminate spherical aberration, coma, astigmatism by 5 refractors, proofread and correct the curvature of field, aberration, distortion simultaneously.First protruding refractor 1, second protruding refractor the 2, the 3rd protruding refractor 4, second recessed refractor 5 materials are BK7; First recessed refractor 3 materials are SF2.This optical system all adopts spherical lens, and the homogeneity of lens material, bubble degree are one-level.
The advantage of optical system of the present invention is: system architecture is simple, and processing, dress school just can solve by routine techniques, and optical system adopts two kinds of optical materials to constitute, thereby helps the stability that optical system is eliminated aberration and guaranteed temperature.
Description of drawings
Fig. 1 is the optical system structure synoptic diagram,
Among the figure: d1 is the center thickness of the first protruding refractor 1;
D2 is the spacing distance of first protruding refractor 1 rear surface and second protruding refractor 2 front surfaces;
D3 is the center thickness of the second protruding refractor 2;
D4 is the spacing distance of second protruding refractor 2 rear surfaces and first recessed refractor 3 front surfaces;
D5 is the center thickness of the first recessed refractor 3;
D6 is the spacing distance of first recessed refractor 3 rear surfaces and diaphragm 6;
D7 is the spacing distance of diaphragm 6 and the 3rd protruding refractor 4;
D8 is the center thickness of the 3rd protruding refractor 4;
D9 is the spacing distance of the 3rd protruding refractor 4 rear surfaces and second recessed refractor 5 front surfaces;
D10 is the center thickness of the second recessed refractor 5;
D11 is the spacing distance of second recessed refractor 5 rear surfaces and image planes.
R11 is the first protruding refractor 1 front surface radius-of-curvature;
R12 is the first protruding refractor 1 rear surface radius-of-curvature;
R21 is the second protruding refractor 2 front surface radius-of-curvature;
R22 is the second protruding refractor 2 rear surface radius-of-curvature;
R31 is the first recessed refractor 3 front surface radius-of-curvature;
R32 is the first recessed refractor 3 rear surface radius-of-curvature;
R41 is the 3rd protruding refractor 4 front surface radius-of-curvature;
R42 is the 3rd protruding refractor 4 rear surface radius-of-curvature;
R51 is the second recessed refractor 5 front surface radius-of-curvature;
R52 is the second recessed refractor 5 rear surface radius-of-curvature.
Embodiment
According to the optical texture of Fig. 1, we have designed a dynamic measuring angle projection optical system.Systematic technical indicator is as follows:
System's clear aperture: φ 140mm;
Relative aperture: 1:4.3367;
Focal length: 607.143mm;
Visual field: ± 9 °;
Operation wavelength: 0.622 μ m～0.642 μ m;
Optical system specific design parameter is as shown in table 1.This system's picture element is near diffraction limit, and the radius of disc of confusion is less than 4 μ m, each visual field disc of confusion size equalization; 30 lines right/millimeter MTF greater than 60%.
Table 1
| The element title | The face sequence number | Radius-of-curvature (mm) | Asphericity coefficient (e2) | Aperture (mm) | Interval or thickness (mm) | Material |
| Object plane first protruding refractor second protruding refractor first recessed refractor diaphragm the 3rd protruding refractor second recessed refractor image planes | R11 R12 R21 R22 R31 R32 R41 R42 R51 R52 | ∞ 245 1017.40 207.50 420 -900 175.39 ∞ 229.10 -366.40 -126.18 -290.40 | ∞ 190 185.2 170 158 145 130 118 135 135 126 136 193.3768 | ∞ 24.97(d 1) 10(d 2) 27.02(d 3) 23.53(d 4) 15.17(d 5) 65.19(d 6) 22.35(d 7) 27(d 8) 193.74(d 9) 16.43(d 10) 200.10(d 11) | BK7 BK7 SF2 BK7 BK7 |
Claims (2)
1. projection optical system that is used for dynamic angle testing device, comprise: protruding refractor and recessed refractor is characterized in that: optical system is made up of the first protruding refractor (1), the second protruding refractor (2), the first recessed refractor (3), the 3rd protruding refractor (4), the second recessed refractor (5) in order from object space to picture side;
From the light beam of object space through the first protruding refractor (1), the second protruding refractor (2), the first recessed refractor (3), the 3rd protruding refractor (4), second recessed refractor (5) the directive picture side;
The lens of optical system all adopt spherical lens.
2. according to a kind of projection optical system that is used for dynamic angle testing device of claim 1, it is characterized in that: the first protruding refractor (1), the second protruding refractor (2), the 3rd protruding refractor (4), second recessed refractor (5) material are BK7; First recessed refractor (3) material is SF2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610118054 CN1949017A (en) | 2006-11-08 | 2006-11-08 | Projecting optical system for dynamic angle testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610118054 CN1949017A (en) | 2006-11-08 | 2006-11-08 | Projecting optical system for dynamic angle testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1949017A true CN1949017A (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610118054 Pending CN1949017A (en) | 2006-11-08 | 2006-11-08 | Projecting optical system for dynamic angle testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1949017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012553B (en) * | 2009-09-08 | 2012-01-11 | 深圳鼎识科技有限公司 | Imaging lens for mobile reading devices |
| WO2019184367A1 (en) * | 2018-03-30 | 2019-10-03 | 浙江舜宇光学有限公司 | Optical system |
-
2006
- 2006-11-08 CN CN 200610118054 patent/CN1949017A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012553B (en) * | 2009-09-08 | 2012-01-11 | 深圳鼎识科技有限公司 | Imaging lens for mobile reading devices |
| WO2019184367A1 (en) * | 2018-03-30 | 2019-10-03 | 浙江舜宇光学有限公司 | Optical system |
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