CN102662206B - Angle reflector and angle reflector array - Google Patents
Angle reflector and angle reflector array Download PDFInfo
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- CN102662206B CN102662206B CN201210163336.0A CN201210163336A CN102662206B CN 102662206 B CN102662206 B CN 102662206B CN 201210163336 A CN201210163336 A CN 201210163336A CN 102662206 B CN102662206 B CN 102662206B
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- angle
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Abstract
The invention provides an angle reflector and an angle reflector array. The angle reflector is of a tetrahedral structure made of K9 glasses, and comprises four fixed points, an incident plane and three side faces, wherein the three side faces are respectively provided with a reflecting film, and form a preset angle; when being incident from a direction vertical to the incident plane, light is projected to the first side face at the included angle of 54.7 degrees, is projected to the second side face at the included angle of 54.7 degrees after being totally reflected through the first side face, is projected to the third face at the included angle of 54.7 degrees after being totally reflected through the second side face, and is ejected from the direction vertical to the incident plane after being totally reflected by the third side face. The embodiment of the invention also provides the angle reflector array, which comprises six angle reflectors, wherein the six angle reflectors form a regular hexagon; and no gap exists among the six angle reflectors, so that the effective reflection area of the reflector array is favored to be increased.
Description
Technical field
The present invention relates to spationautics field, refer to especially a kind of corner reflector and reflector array as Technique in Rendezvous and Docking pulse code passive optical sensor.
Background technology
Technique in Rendezvous and Docking refers to that two or more spacecrafts are in orbit by preposition and time junction (intersection), the thru-flight course of action of then structurally link into an integrated entity (docking).
In immense universe, wanting to allow two aircraft be docking together is accurately very difficult problem.Existing spatial intersection technology is to adopt docking pulse code passive optical sensor.Existing docking pulse code passive optical sensor is made up of the main mounting box of sensor and cooperative target two parts, and wherein the main mounting box of sensor is arranged on pursuit spacecraft, and cooperative target is arranged on passive space vehicle.
In the time of docking, send pulse laser by the main mounting box of sensor and irradiate cooperative target, and by camera to its imaging, by analysis of image data and in advance known cooperative target mounting means draw relative position and the deflection angle of pursuit spacecraft with respect to passive space vehicle.And corner reflector is the fundamental element that forms cooperative target, the general corner reflector using more than four, is arranged in array format according to certain mode, for pulse code passive optical sensor, it is detected.
This shows, the structure of corner reflector has directly caused the accuracy of docking.And the structure of existing corner reflector can not meet the demands.
Summary of the invention
The above-mentioned defect and the problem that exist for existing corner reflector, the object of the embodiment of the present invention is to propose the more rational corner reflector of a kind of structure and reflector array.
In order to achieve the above object, the embodiment of the present invention has proposed a kind of corner reflector, and described corner reflector is the tetrahedral structure that K9 glass is made, and comprises four fixed points O, A, B, C,, comprise plane of incidence ABC and three side AOB, BOC, AOC; Described three side AOB, BOC, AOC are respectively equipped with reflectance coating; And described three side AOB, BOC, AOC become preset angles, when incident ray is during with direction incident perpendicular to incident surface A BC, to project on the AOB of side with 54.7 ° of angles, and after carrying out total reflection, side AOB projects on the BOC of side with 54.7 ° of angles, and it is upper to project side AOC with 54.7 ° of angles after the BOC total reflection of side, and penetrate with the direction perpendicular to described incident surface A BC after the AOC total reflection of side.
As technique scheme preferably, the reflection critical angle of described K9 glass is 41.8 °.
As technique scheme preferably, described reflectance coating is silver-plated film.
As technique scheme preferably, the length of side of described four faces is 35mm.
In order to achieve the above object, the embodiment of the present invention has also proposed a kind of reflector array, comprises six foregoing corner reflectors, forms a regular hexagon, between six corner reflectors, there is no gap.Thereby be conducive to increase the specular cross section of reflector array.
As technique scheme preferably, the corresponding fixed point of described six corner reflectors is set together to form described reflector array.
The embodiment of the present invention has proposed a kind of corner reflector and reflector array can obtain the reflected energy that improves large observation scope, increase effective clear aperture, improve the field angle of cooperative target, reduce the angle of divergence of light beam, in the situation of same specular cross section, reduce to greatest extent array area occupied and weight, made the picture of cooperative target on CCD camera texts more easy to identify.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the corner reflector of the embodiment of the present invention;
Fig. 2 is the light path principle figure of the corner reflector of the embodiment of the present invention;
Fig. 3 is the structural representation of the reflector array of the embodiment of the present invention;
Fig. 4 is the imaging effect figure of light while vertically injecting corner reflector as shown in Figure 1;
Fig. 5 is the imaging effect figure of corner reflector while turning over 20 ° of angles.
Embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
First embodiment of the invention has proposed a kind of corner reflector, and as shown in Figure 1, described corner reflector is the tetrahedral structure that K9 glass is made to its structure, comprises four fixed points O, A, B, C, comprises plane of incidence ABC and three side AOB, BOC, AOC; Described three side AOB, BOC, AOC are respectively equipped with reflectance coating; And described three side AOB, BOC, AOC become preset angles, in the time making incident ray with direction incident perpendicular to incident surface A BC, to project on the AOB of side with 54.7 ° of angles, and after carrying out total reflection, side AOB projects on the BOC of side with 54.7 ° of angles, and it is upper to project side AOC with 54.7 ° of angles after the BOC total reflection of side, and penetrate with the direction perpendicular to described incident surface A BC after the AOC total reflection of side.
Wherein, the reflection critical angle of described K9 glass is 41.8 °.Described reflectance coating is silver-plated film.The length of side of four faces of described corner reflector is 35mm.
K9 glass is to expect with K9 the glassware of making.K9 material belongs to optical glass, and K9 expects forming by following raw material: SiO
2=69.13%B
2o
3=10.75%BaO=3.07%Na
2o=10.40%K
2o=6.29%As
2o
3=0.36%.
Its optical constant is: Abbe number=64.06, dispersion=0.00806, refractive index=1.51630.
Embodiment 2
Second embodiment of the invention has proposed a kind of reflector array, and its structure as shown in Figure 3, comprises six corner reflectors described in the first embodiment.Wherein, the corresponding fixed point of described six corner reflectors is set together to form described reflector array, and the plane of incidence is regular hexagon.
The application proves its validity by following experiment:
Shown in Fig. 4, be to adopt the laser that wavelength is 974nm, from 40 meters, vertically inject corner reflector, and use the CCD camera that focal length is 8mm to gather image, the corner reflector imaging effect figure obtaining.In figure, reflected light shared area in image can meet the demands, and the intensity profile of high light is substantially even.
Shown in Fig. 5, be to turn under these conditions 20 ° of later imaging effects when corner reflector.At this moment incident ray is no longer perpendicular to corner reflector, and therefore hot spot brightness weakens to some extent, but reflecting effect is still good, can meet the requirement of identifying by graphical analysis.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (3)
1. a corner reflector, described corner reflector is the tetrahedral structure that K9 glass is made, and comprises four fixed points O, A, B, C, comprises plane of incidence ABC and three side AOB, BOC, AOC; Described three side AOB, BOC, AOC are respectively equipped with reflectance coating; And described three side AOB, BOC, AOC become preset angles;
The reflection critical angle of described K9 glass is 41.8 °;
Described reflectance coating is silver-plated film;
The length of side of described four faces is 35mm;
It is characterized in that, when incident ray is during with direction incident perpendicular to incident surface A BC, to project on the AOB of side with 54.7 ° of angles, and after carrying out total reflection, side AOB projects on the BOC of side with 54.7 ° of angles, and it is upper to project side AOC with 54.7 ° of angles after the BOC total reflection of side, and penetrate with the direction perpendicular to described incident surface A BC after the AOC total reflection of side.
2. a reflector array, is characterized in that, comprises six corner reflectors as claimed in claim 1.
3. according to the reflector array shown in claim 2, it is characterized in that, the corresponding fixed point of described six corner reflectors is set together to form described reflector array and forms a regular hexagon, between six corner reflectors, there is no gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163336.0A CN102662206B (en) | 2012-05-23 | 2012-05-23 | Angle reflector and angle reflector array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163336.0A CN102662206B (en) | 2012-05-23 | 2012-05-23 | Angle reflector and angle reflector array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102662206A CN102662206A (en) | 2012-09-12 |
| CN102662206B true CN102662206B (en) | 2014-09-17 |
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ID=46771731
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|---|---|---|---|
| CN201210163336.0A Expired - Fee Related CN102662206B (en) | 2012-05-23 | 2012-05-23 | Angle reflector and angle reflector array |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652251B (en) * | 2014-11-20 | 2018-07-13 | 中国航空工业集团公司雷华电子技术研究所 | A kind of small-bore distributed corner reflector composite structure |
| CN105403868B (en) * | 2015-11-21 | 2018-04-17 | 葛强林 | A kind of honeycomb fashion radar corner reflector |
| CN109444821B (en) * | 2019-01-04 | 2020-10-30 | 北京环境特性研究所 | Controllable corner reflector polarizes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534313A (en) * | 2003-04-02 | 2004-10-06 | 美国微感技术公司 | Reflector for converting polarization direction of polarized light and component element thereof |
| CN101133346A (en) * | 2004-11-12 | 2008-02-27 | 皇家飞利浦电子股份有限公司 | Bright full color reflective display |
| CN101571606A (en) * | 2009-06-01 | 2009-11-04 | 浙江工业大学 | Large-size micro-prism type reflecting material die and preparation method thereof |
| CN101983343A (en) * | 2008-03-31 | 2011-03-02 | 日本电石工业株式会社 | Multi-directional cube corner retroreflective object |
-
2012
- 2012-05-23 CN CN201210163336.0A patent/CN102662206B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534313A (en) * | 2003-04-02 | 2004-10-06 | 美国微感技术公司 | Reflector for converting polarization direction of polarized light and component element thereof |
| CN101133346A (en) * | 2004-11-12 | 2008-02-27 | 皇家飞利浦电子股份有限公司 | Bright full color reflective display |
| CN101983343A (en) * | 2008-03-31 | 2011-03-02 | 日本电石工业株式会社 | Multi-directional cube corner retroreflective object |
| CN101571606A (en) * | 2009-06-01 | 2009-11-04 | 浙江工业大学 | Large-size micro-prism type reflecting material die and preparation method thereof |
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| CN102662206A (en) | 2012-09-12 |
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Granted publication date: 20140917 Termination date: 20180523 |