High angular resolution sensor专利检索-光学编码器传感器与探测器专利检索查询-专利查询网

High angular resolution sensor

阅读：389发布：2023-01-15

专利汇可以提供High angular resolution sensor专利检索，专利查询，专利分析的服务。并且A system for determining the direction from which an illuminating laser beam is received. A cylindrical optical system focuses a laser beam from the field of view as a sharp line image at its focal plane. An encoder plate having a plurality of encoder tracks of differing resolution is located at the focal plane with the tracks positioned perpendicular to the line image. An array of radiation detectors nonfocused radiation passed by the plurality of tracks. The output of the array is a digital word representing the position of the line image on the encoder plate which in turn defines the position of the laser source in the field of view.，下面是High angular resolution sensor专利的具体信息内容。

权利要求

1. A system for detecting the direction from which incident radiation is received from over a given field of view, and comprising: a. a cylindrical optical system for gathering radiation from the relatively wide field of view and for directing the radiation back to a focal plane as a sharp line image with the position of the line image in said focal plane being dependent upon the direction from which the radiation is received; b. encoder means positioned substantially at said focal plane, said encoder means having a plurality of code tracks for selectively passing radiation in dependence upon the position of said line image relative to said code tracks; c. a plurality of detectors, at least one for each said code track, for detecting nonfocused radiation selectively passed by said code tracks, whereby said plurality of detectors will not be damaged by focused radiation and whereby the outputs of said plurality of detectors are representative of the position of said line image relaTive to said encoder means which in turn defines the direction from which the incident radiation is received.

2. A system as set forth in claim 1 wherein said plurality of code tracks form a Gray code.

3. A system as set forth in claim 1 wherein each of said plurality of detectors includes a linear detector extending the entire length of the code track from which it is to detect radiation.

4. A system as set forth in claim 1 wherein each of said plurality of code tracks have alternating radiation opaque and radiation transmissive areas.

5. A system as set forth in claim 1 wherein: a. said cylindrical optical system and introduces particular aberrations into said line image; and b. said encoder means includes a compensated encoder means constructed to compensate for said particular aberrations in said line image.

6. A system as set forth in claim 5 wherein asaid compensated encoder means is constructed with said cylindrical optical system which is utilized to form an image of an uncompensated encoder means having a plurality of uniformly accurate code tracks onto said compensated encoder means, whereby said cylindrical optical system will form an image on said compensated encoder means having particular aberrations which are characteristic of said cylindrical optical system.

7. A system as set forth in claim 6 wherein said plurality of code tracks form a Gray code.

8. A system as set forth in claim 7 wherein each of said plurality of code tracks have alternating radiation opaque and radiation transmissive areas.

9. A system as set forth in claim 8 wherein each of said plurality of detectors includes a linear detector extending the length of the code track from which it is to detect radiation.

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