CN103604443A - Starlight simulator - Google Patents
Starlight simulator Download PDFInfo
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- CN103604443A CN103604443A CN201310565556.0A CN201310565556A CN103604443A CN 103604443 A CN103604443 A CN 103604443A CN 201310565556 A CN201310565556 A CN 201310565556A CN 103604443 A CN103604443 A CN 103604443A
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- convex lens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a starlight simulator which comprises a light source, a dodging device, an imaging illumination system, an optical filter, a polarizer, a liquid crystal display (LCD), a polarization analyzer, a parallel optical system and an imaging surface, wherein the light source is used for outputting a light beam; the dodging device is arranged on an emergent light path of the light beam and is used for dodging the light beam; the imaging illumination system is arranged on one side, which is far away from the light source, of the dodging device and is used for emitting the light beam according to a specified aperture; the optical filter, the polarizer, the LCD and the polarization analyzer are sequentially arranged on a light path on one side, which is far away from the dodging device, of the imaging illumination system; the parallel optical system is arranged on a light path on one side, which is far away from the LCD, of the polarization analyzer and is used for emitting the passed light beam in a high-precision parallel light form; the imaging surface is arranged on a light path on one side, which is far away from the polarization analyzer, of the parallel optical system and is used for receiving the light beam.
Description
Technical field
The present invention relates to a kind of starlight analog device, relate in particular to a kind of for the test of starlight navigational system and the starlight analog device of analogue simulation.
Background technology
Starlight sensor is navigation instrument important in satellite and airship.Starlight analog device is the main ground calibration facility of starlight sensor, at the star chart of ground simulation starry sky, for starlight sensor provides standard measuring signal.
Starlight analog device of the prior art can be subdivided into static starlight analog device and dynamic starlight analog device.Static starlight analog device has higher simulation precision, but can not realize many visual fields dynamically shows.Although dynamic starlight analog device can be realized dynamic demonstration, precision is lower comparatively speaking.
Therefore, be necessary to provide the starlight analog device of a kind of Dynamic High-accuracy space background and high precision target simulation.
Summary of the invention
In sum, the necessary starlight analog device that a kind of Dynamic High-accuracy space background and high precision target simulation are provided.
A starlight analog device, comprising: a light source, for exporting a light beam; One light uniforming device is arranged on the emitting light path of described light beam, for making described beam uniformity; One imaging illuminator, is arranged in the light path of described light uniforming device away from light source one side, for making described light beam with the outgoing of special pore size distribution angle; One optical filter, a polarizer, a LCD and an analyzer are successively set in the light path of described imaging illuminator away from described light uniforming device one side; One collimating optics system, is arranged in the light path of described analyzer away from LCD mono-side, the form outgoing for the light beam that makes to pass through with the parallel light of high precision; And an imaging surface, be arranged in the light path of described collimating optics system away from analyzer one side, for receiving described light beam.
Starlight analog device provided by the invention, by the combination of described light uniforming device, described imaging illuminator, described optical filter, the described polarizer, described LCD, described analyzer and described collimating optics system, can carry out the simulation of Dynamic High-accuracy space background and high precision target.In addition, described starlight analog device also has the features such as simple in structure and with low cost.
Accompanying drawing explanation
Structure and the light path schematic diagram of the starlight analog device that Fig. 1 provides for first embodiment of the invention.
Structure and the light path schematic diagram of the starlight analog device that Fig. 2 provides for second embodiment of the invention.
Main element symbol description
| Starlight |
100；200 |
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10 |
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11；21 |
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12 |
| |
121 |
| The first |
122 |
| The second |
124 |
| The 3rd |
126 |
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13 |
| The |
14 |
| |
15 |
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16 |
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17 |
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18 |
| The 4th |
212 |
| The 5th |
214 |
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216 |
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2162 |
| Light- |
2164 |
| Focus | f 2 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below according to Figure of description and in conjunction with specific embodiments to further statement in detail of technical scheme of the present invention.
Refer to Fig. 1, first embodiment of the invention provides a kind of starlight analog device 100, comprising: a light source 10, a light uniforming device 11, an imaging illuminator 12, an optical filter 13, a polarizer 14, a LCD15, an analyzer 16, a collimating optics system 17 and an imaging surface 18.
Described light source 10 is for exporting a light beam, and simulates the light beam that fixed star sends.Preferably, described light source 10 is a pointolite.In the embodiment of the present invention, described light source 10 is about the LED light source of 1mm for Radius.
Described light uniforming device 11 is arranged on the emitting light path of described light beam, for making described beam uniformity.Described light uniforming device 11 can be a light guide plate.Described light source 10 can be arranged on described light guide plate below or side, thereby form the light source of a straight-down negative or the light source of side entering type.In the present embodiment, form the light source of a straight-down negative.
Described imaging illuminator 12 is arranged in the light path of described light uniforming device 11 away from light source 10 1 sides, for making the light beam of outgoing from light uniforming device 11 evenly incide LCD15 with special pore size distribution angle, certain width.In the present embodiment, described imaging illuminator 12 is for making the aperture angle of described light beam be reduced to 3 ° of left and right.Described imaging illuminator 12 is disposed with one first convex lens 122, one second convex lens 124 and one the 3rd convex lens 126 along the direction away from described light uniforming device 11.Material, specification and the spacing of described the first convex lens 122, described the second convex lens 124 and described the 3rd convex lens 126 are not limit, as long as make the aperture angle of described light beam reach a predetermined angular.In the present embodiment, the material of described the first convex lens 122 is H-ZK7, the radius-of-curvature of the incidence surface of described the first convex lens 122 is about 28.84mm, the radius-of-curvature of the exiting surface of described the first convex lens 122 is about 12.27mm, the center thickness of described the first convex lens 122 is about 15mm, and described the first convex lens 122 arrange with described light guide plate laminating; The material of described the second convex lens 124 is H-K9L, the radius-of-curvature of the incidence surface of described the second convex lens 124 is about 38.46mm, the radius-of-curvature of the exiting surface of described the second convex lens 124 is about 28.16mm, the center thickness of described the second convex lens 124 is about 10mm, and described the second convex lens 124 are about 0.1mm to the distance of described the first convex lens 122; The material of described the 3rd convex lens 126 is ZF2, and the radius-of-curvature of the incidence surface of described the 3rd convex lens 126 is about 92.2mm, the radius-of-curvature of the exiting surface of described the 3rd convex lens 126 is about 66.44mm, and the center thickness of described the 3rd convex lens 126 is about 5mm, the spacing of described the 3rd convex lens 126 and described the second convex lens 124 is about 50mm.
Described imaging illuminator 12 may further include a diaphragm 121, and described diaphragm 121 is for unnecessary light beam is kept off, thereby improves beam quality and change the illumination field of view area of light beam.Position and the diameter of described diaphragm 121 are not limit.In the present embodiment, described diaphragm 121 is arranged between described the first convex lens 122 and the second convex lens 124, and the diameter of described diaphragm 121 is about 24.4mm.
Described optical filter 13, the described polarizer 14, described LCD15 and described analyzer 16 are successively set in the light path of described imaging illuminator 12 away from light uniforming device 11 1 sides.Described optical filter 13 plays the effect of light beam being carried out to wavelength screening.Particularly, described optical filter 13 filters for other light to beyond visible ray.The described polarizer 14 is for the light beam inciding on LCD15 is polarized, and described analyzer 16 carries out analyzing for the light beam to from LCD15 outgoing, and the relative rotation of the described polarizer 14 and described analyzer 16 is fixed.Described LCD15 is for adjusting the intensity of described light beam.Spacing between described optical filter 13, the described polarizer 14, described LCD15 and described analyzer 16 is not limit, and can select according to actual needs.In the present embodiment, described optical filter 13, the described polarizer 14, described LCD15 and the basic laminating of described analyzer 16 arrange.
Described collimating optics system 17 is arranged in the light path of described analyzer 16 away from described LCD15 mono-side, for making light beam by described collimating optics system 17 with the form outgoing of the parallel light of high precision.Particularly, described collimating optics system 17 can make the precision of light beam reach in 10 〞.Preferably, described collimating optics system 17 can make the precision of light beam reach in 1 〞.Described collimating optics system 17 can be comprised of at least one convex lens.
Described imaging surface 18 is arranged in the light path of described collimating optics system 17 away from described analyzer 16 1 sides, for receiving described light beam.
Starlight analog device 100 in first embodiment of the invention can be realized the high-precision dynamic similation of luminous situation to different magnitudes, and described starlight analog device 100 also have simple in structure, be easy to miniaturization, the feature such as practical.
Refer to Fig. 2, second embodiment of the invention provides a kind of starlight analog device 200, the structure of the starlight analog device 100 in described starlight analog device 200 and first embodiment of the invention is basic identical, and difference is, the different light uniforming device 21 of described starlight analog device 200 use.
Described light uniforming device 21 comprises one the 4th convex lens 212, one the 5th convex lens 214 and an integrating rod 216.Described the 5th convex lens 214 are arranged in the light path of described the 4th convex lens 212 away from described light source 10 1 sides, and described integrating rod 216 is arranged in the light path of described the 5th convex lens 214 away from described the 4th convex lens 212 1 sides.Material, specification and the spacing of described the 4th convex lens 212 and described the 5th convex lens 214 are not limit, as long as make the aperture angle of described light beam reach a predetermined angle.In the present embodiment, described the 4th convex lens 212 and described the 5th convex lens 214 can make the aperture angle of described light beam reach 27 ° of left and right.Described the 5th convex lens 214 have a focus f away from a side of described the 4th convex lens 212
2.In the present embodiment, the material of described the 4th convex lens 212 is BK7, and the radius-of-curvature of the incidence surface of described the 4th convex lens 212 is about 35mm, the radius-of-curvature of the exiting surface of described the 4th convex lens 212 is about 158mm, and the center thickness of described the 4th convex lens 212 is about 7mm; The material of described the 5th convex lens 214 is ZF2, and the radius-of-curvature of the incidence surface of described the 5th convex lens 214 is about 15.65mm, the radius-of-curvature of the exiting surface of described the 5th convex lens 214 is about 29.5mm, the center thickness of described the 5th convex lens 214 is about 5mm, and the spacing of described the 5th convex lens 214 and described the 4th convex lens 212 is about 2mm.
Described integrating rod 216 is arranged on described the 5th convex lens 214 away from a side of the 4th convex lens 212, and described integrating rod 216 is for making beam uniformity and realizing beam shaping.Material and the specification of described integrating rod 216 are not limit, and can select according to actual needs.Described integrating rod 216 can be square along the shape of the xsect perpendicular to its length direction, rectangle, circle or other geometric configuratioies.In the present embodiment, the material of described integrating rod 216 is aluminium, and along the square that is shaped as perpendicular to the xsect of its length direction, described foursquare internal diameter is about 8mm * 8mm, and described foursquare external diameter is about 9mm * 9mm.Described integrating rod 216 comprises a light inlet 2162 and the light-emitting window 2164 being oppositely arranged.Described light inlet 2162 can be arranged at the focus f on the primary optical axis of described the 5th convex lens 214
2near, described light-emitting window 2164 arranges with described the first convex lens 122 laminatings.Preferably, described light inlet 2162 is arranged at described focus f
2on primary optical axis away from described the 5th convex lens 214 1 sides, and described light inlet 2162 to described focus f
2distance be about 0-8mm.Preferred, described light inlet 2162 to described focus f
2distance be about 5-8mm, thereby can make more homogenising of light beam.In the present embodiment, described light inlet 2162 is arranged at described focus f
2on primary optical axis away from described the 5th convex lens 214 1 sides, and described light inlet 2162 to described focus f
2distance be about 7mm.
Further, can between whole described the 4th convex lens 212 and described the 5th convex lens 214, one second polarizer be set, thereby realize elementary of light beam partially.
In addition, those skilled in the art also can do other and change in spirit of the present invention, and these variations of doing according to spirit of the present invention certainly, all should be included in the present invention's scope required for protection.
Claims (10)
1. a starlight analog device, is characterized in that, comprising:
One light source, for exporting a light beam;
One light uniforming device is arranged on the emitting light path of described light beam, for making described beam uniformity;
One imaging illuminator, is arranged in the light path of described light uniforming device away from light source one side, for making described light beam with the outgoing of special pore size distribution angle;
One optical filter, a polarizer, a LCD and an analyzer are successively set in the light path of described imaging illuminator away from described light uniforming device one side;
One collimating optics system, is arranged in the light path of described analyzer away from LCD mono-side, the form outgoing for the light beam that makes to pass through with the parallel light of high precision; And
One imaging surface, is arranged in the light path of described collimating optics system away from analyzer one side, for receiving described light beam.
2. starlight analog device as claimed in claim 1, is characterized in that, described light uniforming device is a light guide plate, and described light source be arranged on described light guide plate below or side.
3. starlight analog device as claimed in claim 1, it is characterized in that, described light uniforming device comprises one the 4th convex lens, one the 5th convex lens and an integrating rod, described the 5th convex lens are arranged on described the 4th convex lens away from a side of described light source, and described integrating rod is arranged on described the 5th convex lens away from a side of described the 4th convex lens; And described the 5th convex lens have a focus away from a side of described the 4th convex lens.
4. starlight analog device as claimed in claim 3, it is characterized in that, the material of described the 4th convex lens is BK7, and the radius-of-curvature of the incidence surface of described the 4th convex lens is 35mm, the radius-of-curvature of the exiting surface of described the 4th convex lens is 158mm, and the center thickness of described the 4th convex lens is 7mm; The material of described the 5th convex lens is ZF2, and the radius-of-curvature of the incidence surface of described the 5th convex lens is 15.65mm, and the radius-of-curvature of the exiting surface of described the 5th convex lens is 29.5mm, and the center thickness of described the 5th convex lens is 5mm; The spacing of described the 5th convex lens and described the 4th convex lens is 2mm.
5. starlight analog device as claimed in claim 3, is characterized in that, described integrating rod comprises a light inlet and the light-emitting window being oppositely arranged, and described light inlet is arranged near the focus on the primary optical axis of described the 5th convex lens.
6. starlight analog device as claimed in claim 5, is characterized in that, described light inlet is 5-8mm to the distance of described focus.
7. starlight analog device as claimed in claim 1, is characterized in that, described imaging illuminator is for making the aperture angle of described light beam be reduced to 3 °.
8. starlight analog device as claimed in claim 1, is characterized in that, described imaging illuminator is disposed with one first convex lens, one second convex lens and one the 3rd convex lens along the direction away from described light uniforming device.
9. starlight analog device as claimed in claim 1, it is characterized in that, the material of described the first convex lens is H-ZK7, the radius-of-curvature of the incidence surface of described the first convex lens is 28.84mm, the radius-of-curvature of the exiting surface of described the first convex lens is 12.27mm, and the center thickness of described the first convex lens 122 is 15mm; The material of described the second convex lens is H-K9L, the radius-of-curvature of the incidence surface of described the second convex lens is 38.46mm, the radius-of-curvature of the exiting surface of described the second convex lens is 28.16mm, the center thickness of described the second convex lens is 10mm, and described the second convex lens are 0.1mm to the distance of described the first convex lens; The material of described the 3rd convex lens is ZF2, and the radius-of-curvature of the incidence surface of described the 3rd convex lens is 92.2mm, the radius-of-curvature of the exiting surface of described the 3rd convex lens is 66.44mm, and the center thickness of described the 3rd convex lens is 5mm, the spacing of described the 3rd convex lens and described the second convex lens is 50mm.
10. starlight analog device as claimed in claim 1, is characterized in that, the precision of described collimating optics system reaches in 10 〞.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565556.0A CN103604443B (en) | 2013-11-14 | 2013-11-14 | Starlight analog device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565556.0A CN103604443B (en) | 2013-11-14 | 2013-11-14 | Starlight analog device |
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| CN103604443A true CN103604443A (en) | 2014-02-26 |
| CN103604443B CN103604443B (en) | 2016-06-22 |
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| CN201310565556.0A Expired - Fee Related CN103604443B (en) | 2013-11-14 | 2013-11-14 | Starlight analog device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606388A (en) * | 2016-02-14 | 2016-05-25 | 长春理工大学 | Split magnitude adjustable star map variable static star simulator having sky background |
| CN108224235A (en) * | 2018-01-04 | 2018-06-29 | 北京环境特性研究所 | Lighting device |
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| CN1912547A (en) * | 2006-08-23 | 2007-02-14 | 北京航空航天大学 | High precision low cost starlight simulator |
| CN102175262A (en) * | 2011-01-13 | 2011-09-07 | 哈尔滨工业大学 | Dynamic multi-star star chart simulator based on digital micromirror device (DMD) and simulation method thereof |
| CN102745345A (en) * | 2011-04-20 | 2012-10-24 | 北京控制工程研究所 | Ultraviolet fixed star simulator for calibrating ultraviolet navigation sensor |
-
2013
- 2013-11-14 CN CN201310565556.0A patent/CN103604443B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0589387A1 (en) * | 1992-09-21 | 1994-03-30 | Honeywell Inc. | Method and system for determining 3-axis spacecraft attitude |
| CN1912547A (en) * | 2006-08-23 | 2007-02-14 | 北京航空航天大学 | High precision low cost starlight simulator |
| CN102175262A (en) * | 2011-01-13 | 2011-09-07 | 哈尔滨工业大学 | Dynamic multi-star star chart simulator based on digital micromirror device (DMD) and simulation method thereof |
| CN102745345A (en) * | 2011-04-20 | 2012-10-24 | 北京控制工程研究所 | Ultraviolet fixed star simulator for calibrating ultraviolet navigation sensor |
Non-Patent Citations (1)
| Title |
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| 郑茹: "基于LCOS拼接技术的动态星模拟器光学系统涉及", 《中国优秀硕士学位论文全文数据库工程科技II辑》, 15 March 2013 (2013-03-15) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606388A (en) * | 2016-02-14 | 2016-05-25 | 长春理工大学 | Split magnitude adjustable star map variable static star simulator having sky background |
| CN105606388B (en) * | 2016-02-14 | 2018-05-08 | 长春理工大学 | The variable static star simulator of the split type magnitude with sky background is adjustable star chart |
| CN108224235A (en) * | 2018-01-04 | 2018-06-29 | 北京环境特性研究所 | Lighting device |
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| CN103604443B (en) | 2016-06-22 |
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