CN109188651B - Refractive high-resolution star sensor optical system - Google Patents
Refractive high-resolution star sensor optical system Download PDFInfo
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- CN109188651B CN109188651B CN201811139563.3A CN201811139563A CN109188651B CN 109188651 B CN109188651 B CN 109188651B CN 201811139563 A CN201811139563 A CN 201811139563A CN 109188651 B CN109188651 B CN 109188651B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
Abstract
The invention relates to a refraction type high-resolution star sensor optical system, and belongs to the technical field of optical systems. The technical problem of poor imaging quality caused by large distortion values of an optical system of the star sensor in the prior art is solved. The optical system comprises window glass, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged on the same optical axis along the light propagation direction, wherein the first lens, the second lens and the third lens are positive meniscus lenses, the fourth lens is a negative meniscus lens, the fifth lens is a biconcave lens, the sixth lens is a negative meniscus lens, the seventh lens is a biconvex lens, adjacent surfaces of the sixth lens and the seventh lens are fixed together to form a cemented lens, and the eighth lens is a positive meniscus lens. The optical system has the characteristics of large view field, wide spectrum, low distortion and high resolution.
Description
Technical Field
The invention belongs to the technical field of optical systems, and particularly relates to a refraction type high-resolution star sensor optical system.
Background
The star sensor is a gesture sensor with higher measurement precision in an aircraft control system and plays an important role in satellite gesture control. With the rapid development of microsatellite technology in recent years, particularly the research and the application of autonomous navigation star sensors are increasingly wide, the star sensors gradually develop to the trend of large field of view, light weight and high precision.
At present, the key technologies of the star sensor mainly comprise an optical system development technology, an image processing technology, star map matching and the like. The design of the optical system is an important part in the development process of the star sensor, and the star sensor optical system has the following characteristics due to different imaging targets and different requirements on image quality: (1) Imaging the star point target, wherein the imaging details are not required, but the accuracy of the centroid position of the image point is ensured; (2) The energy center error of the diffuse spots of each spectrum is required to be within a specified range and is generally not more than one tenth of the size of a pixel; (3) On the premise of meeting the imaging quality, the number of optical parts is as small as possible so as to facilitate processing and assembly; the axial and radial dimensions of the lens are minimized to reduce the volume and mass of the star sensor. The design difficulty is to ensure excellent star image quality.
At present, the star sensor optical system mainly comprises the following components: a double Gaussian structure non-image space telecentric optical system composed of nine spherical lenses, a non-image space telecentric optical system composed of seven non-cemented spherical lenses and a non-cemented image space telecentric optical system. However, the imaging quality of the existing star sensor optical system is not high due to the fact that the distortion value is large.
Disclosure of Invention
In view of the above, the invention provides a refractive high-resolution star sensor optical system for solving the technical problem of low imaging quality caused by larger distortion value of the star sensor optical system in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows.
The invention provides a refraction type high-resolution star sensor optical system, which comprises window glass, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged on the same optical axis along the light propagation direction;
the first lens, the second lens and the third lens are positive meniscus lenses, the fourth lens is a negative meniscus lens, the fifth lens is a biconcave lens, the sixth lens is a negative meniscus lens, the seventh lens is a biconvex lens, adjacent surfaces of the sixth lens and the seventh lens are fixed together to form a cemented lens, and the eighth lens is a positive meniscus lens.
Further, the window glass is made of SILICA, the curvature radius of the front surface and the back surface is infinite, and the thickness is 4 mm-4.2 mm.
Further, the material of the first lens is HF2, the curvature radius of the front surface and the back surface is 54 mm-58 mm and 510 mm-590 mm, the thickness is 7 mm-8 mm, and the distance between the first lens and the window glass is 0.5 mm-0.6 mm.
Further, the second lens is made of HF2, the curvature radiuses of the front surface and the rear surface are respectively 37 mm-42 mm and 140 mm-160 mm, the thickness is 7.1 mm-7.9 mm, and the distance between the second lens and the first lens is 0.3 mm-0.5 mm.
Further, the material of the third lens is HZLAF52, the curvature radius of the front and back surfaces is 24 mm-28 mm and 46 mm-52 mm, the thickness is 6.2 mm-6.6 mm, and the distance between the third lens and the second lens is 0.4 mm-0.6 mm.
Further, the fourth lens is made of HLAF4, the curvature radiuses of the front surface and the rear surface are respectively 55 mm-60 mm and 15 mm-20 mm, the thickness is 3.1 mm-3.3 mm, and the distance between the fourth lens and the third lens is 0.9 mm-1.2 mm.
Further, the fifth lens is made of HZF3, the curvature radiuses of the front surface and the rear surface are respectively-57 mm to-53 mm and 48mm to 55mm, the thickness is 3mm to 3.4mm, and the distance between the fifth lens and the fourth lens is 4.7mm to 4.9mm.
Further, the sixth lens is made of HZF3, the curvature radiuses of the front surface and the rear surface are respectively 130 mm-150 mm and 20 mm-26 mm, the thickness is 3 mm-3.3 mm, and the distance between the sixth lens and the fifth lens is 2.2 mm-2.5 mm.
Further, the seventh lens is made of HZLAF52, the curvature radiuses of the front surface and the rear surface are respectively 20 mm-26 mm and-70 mm-66 mm, the thickness is 8.2 mm-8.4 mm, and the distance between the seventh lens and the eighth lens is 2.8 mm-3 mm.
Further, the eighth lens is made of HZLAF52, the curvature radius of the front and back surfaces is 50 mm-55 mm and the curvature radius of the front and back surfaces is 210 mm-230 mm, the thickness is 16.4 mm-16.5 mm, and the distance between the eighth lens and the image plane is 18mm.
Compared with the prior art, the invention has the beneficial effects that:
the refraction type high-resolution star sensor optical system provided by the invention has the characteristics of large view field, wide spectrum, low distortion and high resolution, and can realize that the dispersion circle of each view field is controlled within 8 mu m, 80% of energy of the whole view field is concentrated in a circle with the diameter of <12 mu m, and the distortion in the whole view field is better than 0.2%.
Drawings
Fig. 1 is a schematic diagram of a refractive optical system of a high-resolution star sensor according to the present invention, in the diagram, 1, window glass, 2, a first lens, 3, a second lens, 4, a third lens, 5, a fourth lens, 6, a fifth lens, 7, a sixth lens, 8, a seventh lens, 9, and an eighth lens.
FIG. 2 is a graph showing the energy concentration of a refractive high-resolution star sensor optical system according to the present invention.
Fig. 3 is a dot column diagram at the image plane of the refractive high-resolution star sensor optical system provided by the invention.
FIG. 4 is a graph showing the transfer function values of each field of view of the refractive high-resolution star sensor optical system according to the present invention.
FIG. 5 is a graph showing distortion values of each field of view of a refractive high-resolution star sensor optical system according to the present invention.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in fig. 1, the refractive high-resolution star sensor optical system of the present invention includes a window glass 1, a first lens 2, a second lens 3, a third lens 4, a fourth lens 5, a fifth lens 6, a sixth lens 7, a seventh lens 8, and an eighth lens 9, which are sequentially disposed on the same optical axis along the light propagation direction.
Wherein the first lens 2, the second lens 3 and the third lens 4 are positive meniscus lenses, the fourth lens 5 is a negative meniscus lens, the fifth lens 6 is a biconcave lens, the sixth lens 7 is a negative meniscus lens, the seventh lens 8 is a biconvex lens, adjacent surfaces of the sixth lens 7 and the seventh lens 8 are fixed together to form a cemented lens, and the eighth lens 9 is a positive meniscus lens.
Typically, the material of the window glass 1 is SILICA, the radius of curvature of the front and rear surfaces is infinite, and the thickness is 4 mm-4.2 mm; the material of the first lens 2 is HF2, the curvature radius of the front surface and the back surface is 54 mm-58 mm and 510 mm-590 mm respectively, the thickness is 7 mm-8 mm, and the distance between the first lens 2 and the window glass 1 is 0.5 mm-0.6 mm; the material of the second lens 3 is HF2, the curvature radius of the front surface and the back surface is 37 mm-42 mm and 140 mm-160 mm respectively, the thickness is 7.1 mm-7.9 mm, and the distance between the second lens 3 and the first lens 2 is 0.3 mm-0.5 mm; the material of the third lens 4 is HZLAF52, the radius of curvature of the front surface and the rear surface is 24 mm-28 mm and 46 mm-52 mm respectively, the thickness is 6.2 mm-6.6 mm, and the distance between the third lens 4 and the second lens 3 is 0.4 mm-0.6 mm; the fourth lens 5 is made of HLAF4, the curvature radius of the front surface and the back surface is 55 mm-60 mm and 15 mm-20 mm respectively, the thickness is 3.1 mm-3.3 mm, and the distance between the fourth lens 5 and the third lens 4 is 0.9 mm-1.2 mm; the fifth lens 6 is made of HZF3, the curvature radiuses of the front surface and the rear surface are respectively-57 mm to-53 mm and 48mm to 55mm, the thickness is 3mm to 3.4mm, and the distance between the fifth lens 6 and the fourth lens 5 is 4.7mm to 4.9mm; the sixth lens 7 is made of HZF3, the radius of curvature of the front surface and the rear surface is 130 mm-150 mm and 20 mm-26 mm respectively, the thickness is 3 mm-3.3 mm, and the distance between the sixth lens 7 and the fifth lens 6 is 2.2 mm-2.5 mm; the seventh lens 8 is made of HZLAF52, the curvature radiuses of the front surface and the rear surface are respectively 20 mm-26 mm and-70 mm-66 mm, the thickness is 8.2 mm-8.4 mm, and the distance between the seventh lens 8 and the eighth lens 9 is 2.8 mm-3 mm; the eighth lens 9 is made of HZLAF52, the front and back surfaces have curvature radii of 50-55 mm and 210-230 mm respectively, the thickness is 16.4-16.5 mm, and the distance between the eighth lens 9 and the image plane is 18mm.
The optical path trend of the refraction type high-resolution star sensor optical system is that light enters the optical system through the window 1, firstly passes through the first lens 2, the second lens 3, the third lens 4, the fourth lens 5, the fifth lens 6, the sixth lens 7 and the seventh lens 8 in sequence, and finally is imaged on an image plane through the eighth lens 9. The lenses function as follows:
the first lens 2 acts to eliminate system spherical aberration;
the second lens 3 acts to eliminate system spherical aberration;
the third lens 4 functions to eliminate system spherical aberration;
the fourth lens 5 functions to eliminate system coma and astigmatism;
the fifth lens 6 functions to eliminate system coma and astigmatism;
the sixth lens 7 functions to eliminate system chromatic aberration;
the seventh lens 8 functions to eliminate system chromatic aberration;
the eighth lens 9 functions to eliminate system curvature of field and distortion.
The invention is further illustrated below with reference to examples.
Example 1
The technical indexes are as follows: the aperture of the entrance pupil is 35mm; designing wavelength of 550-850 nm; a reference wavelength of 700nm; a field angle of 21 ° (circular field of view); a focal length 59.587mm; energy concentration 80% energy is concentrated in a circle with a diameter of 20 μm; the distortion is less than 0.2%.
The refractive high-resolution star sensor optical system was designed, and parameters (radius, thickness, material, etc.) of each optical element are shown in table 1.
Table 1 parameters of the optical elements of the optical lens group
The refractive high-resolution star sensor optical system of example 1 was characterized for energy concentration, as shown in fig. 2, where curve 1 is a (0.000) degree field energy concentration curve, curve 2 is a (0.000,4.000) degree field energy concentration curve, curve 3 is a (0.000,6.500) degree field energy concentration curve, curve 4 is a (0.000,8.500) degree field energy concentration curve, and curve 5 is a (0.000, 10.5) degree field energy concentration curve. As can be seen from FIG. 2, 80% of the energy of the full field of view of the refractive high-resolution star sensor optical system of example 1 is concentrated in a circle with a diameter <12 μm, which is greatly improved compared with other known star sensor lenses (. Ltoreq.20 μm).
The array of points at the optical system image plane of the refractive high-resolution star sensor optical system of example 1 was characterized. The device is as follows: a CCD camera with resolution of 2560×2160 and pixel size of 6.5×6.5 μm, and system resolution of up to 550 ten thousand pixels. As a result, as shown in FIG. 3, the left-hand value of the graph represents the field value, and the right-hand value represents the image plane speckle diameter. As can be seen from fig. 3, the central field point plot RMS diameter at the image plane of the optical system of the invention is <8 μm, and the edge field point plot RMS diameter is <9 μm.
The optical system of the refractive high-resolution star sensor optical system of example 1 was characterized for each field of view transfer function value. As a result, in fig. 4, curve 1 is an optical system diffraction limit transfer function curve, curve 2 is an on-axis view field transfer function curve, curve 3 is a 0.4 view field meridian transfer function curve, curve 4 is a 0.4 view field sagittal transfer function curve, curve 5 is a 0.6 view field meridian transfer function curve, curve 6 is a 0.6 view field sagittal transfer function curve, curve 7 is a 0.8 view field meridian transfer function curve, curve 8 is a 0.8 view field sagittal transfer function curve, curve 9 is a full view field meridian transfer function curve, and curve 10 is a full view field sagittal transfer function curve. As can be seen from fig. 4, the optical system at the image plane has the advantage of a high transfer function, a full field MTF (@ 77 lp/mm) >0.5. (note: camera pixel size is 6.5 μm, so the camera Nyquist frequency (highest resolution spatial frequency) is 77 lp/mm).
The distortion values of each field of view of the optical system of the refractive high-resolution star sensor optical system of example 1 were characterized. The results are shown in fig. 5, where the curve is from zero degrees to the full field of view distortion value. As can be seen from fig. 5, the optical system of the present invention has the advantage of low distortion, and the distortion is better than 0.2% in the full field of view, which is much better than the distortion value of 1% of other star sensors.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The refraction type high-resolution star sensor optical system is characterized by comprising a window glass (1), a first lens (2), a second lens (3), a third lens (4), a fourth lens (5), a fifth lens (6), a sixth lens (7), a seventh lens (8) and an eighth lens (9) which are sequentially arranged on the same optical axis along the light propagation direction; the component with optical refractive power is only the above eight lens elements;
the first lens (2), the second lens (3) and the third lens (4) are positive meniscus lenses, the fourth lens (5) is a negative meniscus lens, the fifth lens (6) is a biconcave lens, the sixth lens (7) is a negative meniscus lens, the seventh lens (8) is a biconvex lens, adjacent surfaces of the sixth lens (7) and the seventh lens (8) are fixed together to form a cemented lens, and the eighth lens (9) is a positive meniscus lens.
2. A refractive high-resolution star sensor optical system according to claim 1, characterized in that the material of the window glass (1) is silca, the radius of curvature of the front and rear surfaces is infinite, and the thickness is 4 mm-4.2 mm.
3. Refractive high-resolution star sensor optical system according to claim 1, characterized in that the material of the first lens (2) is HF2, the radius of curvature of the front and rear surfaces is 54-58 mm and 510-590 mm, respectively, the thickness is 7-8 mm, and the distance between the first lens (2) and the window glass (1) is 0.5-0.6 mm.
4. Refractive high-resolution star sensor optical system according to claim 1, characterized in that the material of the second lens (3) is HF2, the radius of curvature of the front and rear surfaces is 37 mm-42 mm and 140 mm-160 mm, respectively, the thickness is 7.1 mm-7.9 mm, and the distance between the second lens (3) and the first lens (2) is 0.3 mm-0.5 mm.
5. The refractive high-resolution star sensor optical system according to claim 1, wherein the material of the third lens (4) is HZLAF52, the radius of curvature of the front and rear surfaces is 24 mm-28 mm and 46 mm-52 mm, the thickness is 6.2 mm-6.6 mm, and the distance between the third lens (4) and the second lens (3) is 0.4 mm-0.6 mm.
6. Refractive high-resolution star sensor optical system according to claim 1, characterized in that the material of the fourth lens (5) is HLAF4, the radii of curvature of the front and rear surfaces are 55-60 mm and 15-20 mm, respectively, the thickness is 3.1-3.3 mm, and the distance between the fourth lens (5) and the third lens (4) is 0.9-1.2 mm.
7. Refractive high-resolution star sensor optical system according to claim 1, characterized in that the material of the fifth lens (6) is HZF3, the radii of curvature of the front and rear surfaces are-57 mm to-53 mm and 48mm to 55mm, respectively, the thickness is 3mm to 3.4mm, and the distance between the fifth lens (6) and the fourth lens (5) is 4.7mm to 4.9mm.
8. Refractive high-resolution star sensor optical system according to claim 1, characterized in that the sixth lens (7) is made of HZF3, the radii of curvature of the front and rear surfaces are 130 mm-150 mm and 20 mm-26 mm, respectively, the thickness is 3 mm-3.3 mm, and the distance between the sixth lens (7) and the fifth lens (6) is 2.2 mm-2.5 mm.
9. The refractive high-resolution star sensor optical system according to claim 1, wherein the seventh lens (8) is made of HZLAF52, the front and rear surfaces have radii of curvature of 20 mm-26 mm and-70 mm-66 mm, respectively, the thickness is 8.2 mm-8.4 mm, and the distance between the seventh lens (8) and the eighth lens (9) is 2.8 mm-3 mm.
10. The refractive high-resolution star sensor optical system according to claim 1, wherein the eighth lens (9) is made of HZLAF52, the radii of curvature of the front and rear surfaces are respectively 50mm to 55mm and 210mm to 230mm, the thickness is 16.4mm to 16.5mm, and the distance between the eighth lens (9) and the image plane is 18mm.
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| CN111596532A (en) * | 2020-06-19 | 2020-08-28 | 深圳珑璟光电技术有限公司 | Double telecentric lens and digital projection photoetching system |
| CN117741926B (en) * | 2024-02-19 | 2024-04-16 | 中国科学院长春光学精密机械与物理研究所 | Inertial measurement unit strapdown star sensor and application thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085938A (en) * | 1994-06-20 | 1996-01-12 | Canon Inc | Ocular |
| JP2000121929A (en) * | 1998-10-15 | 2000-04-28 | Minolta Co Ltd | Image pickup optical system reduced in influence of ghost |
| JP2001350087A (en) * | 2000-06-08 | 2001-12-21 | Canon Inc | Automatic focusing device and camera system |
| JP2007192973A (en) * | 2006-01-18 | 2007-08-02 | Nikon Corp | Telecentric objective |
| CN101209753A (en) * | 2006-12-25 | 2008-07-02 | 北京控制工程研究所 | Star sensor system imaging structure |
| JP2008164887A (en) * | 2006-12-28 | 2008-07-17 | Fujinon Corp | Imaging lens |
| FR2972058A1 (en) * | 2011-02-24 | 2012-08-31 | Thales Sa | WIDE ANGULAR TELESCOPE WITH FIVE MIRRORS |
| CN103399392A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工业大学 | Large-viewing-field and high-precision star sensor optical system |
| CN104503065A (en) * | 2014-12-25 | 2015-04-08 | 中国科学院长春光学精密机械与物理研究所 | Large-field-of-view small-F-number ultrahigh-resolution ultraviolet spectral imager |
| DE102016109419A1 (en) * | 2015-05-29 | 2016-12-01 | Jena Optronik Gmbh | Photographic lens, in particular measuring lens |
| CN107193112A (en) * | 2017-07-24 | 2017-09-22 | 福建福光股份有限公司 | A kind of survey of deep space navigation lens of star sensor |
| CN107462975A (en) * | 2017-08-17 | 2017-12-12 | 福建福光股份有限公司 | Star sensor optical lens for aerospace craft navigation system |
| JP2018040858A (en) * | 2016-09-05 | 2018-03-15 | キヤノン株式会社 | Optical system and optical instrument including the same |
| CN208795918U (en) * | 2018-09-28 | 2019-04-26 | 长春长光瑞实科技有限公司 | A kind of refraction type high-resolution optical system of star sensor |
| CN112817131A (en) * | 2021-03-11 | 2021-05-18 | 长春瑞实光电科技有限责任公司 | Large-view-field optical imaging lens and optical system formed by same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006184413A (en) * | 2004-12-27 | 2006-07-13 | Konica Minolta Photo Imaging Inc | Photographing optical system and imaging apparatus |
-
2018
- 2018-09-28 CN CN201811139563.3A patent/CN109188651B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085938A (en) * | 1994-06-20 | 1996-01-12 | Canon Inc | Ocular |
| JP2000121929A (en) * | 1998-10-15 | 2000-04-28 | Minolta Co Ltd | Image pickup optical system reduced in influence of ghost |
| JP2001350087A (en) * | 2000-06-08 | 2001-12-21 | Canon Inc | Automatic focusing device and camera system |
| JP2007192973A (en) * | 2006-01-18 | 2007-08-02 | Nikon Corp | Telecentric objective |
| CN101209753A (en) * | 2006-12-25 | 2008-07-02 | 北京控制工程研究所 | Star sensor system imaging structure |
| JP2008164887A (en) * | 2006-12-28 | 2008-07-17 | Fujinon Corp | Imaging lens |
| FR2972058A1 (en) * | 2011-02-24 | 2012-08-31 | Thales Sa | WIDE ANGULAR TELESCOPE WITH FIVE MIRRORS |
| CN103399392A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工业大学 | Large-viewing-field and high-precision star sensor optical system |
| CN104503065A (en) * | 2014-12-25 | 2015-04-08 | 中国科学院长春光学精密机械与物理研究所 | Large-field-of-view small-F-number ultrahigh-resolution ultraviolet spectral imager |
| DE102016109419A1 (en) * | 2015-05-29 | 2016-12-01 | Jena Optronik Gmbh | Photographic lens, in particular measuring lens |
| JP2018040858A (en) * | 2016-09-05 | 2018-03-15 | キヤノン株式会社 | Optical system and optical instrument including the same |
| CN107193112A (en) * | 2017-07-24 | 2017-09-22 | 福建福光股份有限公司 | A kind of survey of deep space navigation lens of star sensor |
| CN107462975A (en) * | 2017-08-17 | 2017-12-12 | 福建福光股份有限公司 | Star sensor optical lens for aerospace craft navigation system |
| CN208795918U (en) * | 2018-09-28 | 2019-04-26 | 长春长光瑞实科技有限公司 | A kind of refraction type high-resolution optical system of star sensor |
| CN112817131A (en) * | 2021-03-11 | 2021-05-18 | 长春瑞实光电科技有限责任公司 | Large-view-field optical imaging lens and optical system formed by same |
Non-Patent Citations (4)
| Title |
|---|
| Design of hybrid refractive-diffractive star sensor optical system with wide field and small F-number;Zehua Ma 等;PROCEEDINGS OF SPIE;120690W-1-120690W-6 * |
| 大孑L径大视场轻小型星敏感器光学系统;杨皓明 等;光学精密工程;151-154 * |
| 大相对孔径甚高精度星敏感器光学系统设计;闫佩佩;樊学武;;激光与光电子学进展(第09期);092202-1-092202-9 * |
| 轻小型星敏感器光学系统的设计;吴峰 等;光子学报;1336-1339 * |
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