Title:
【発明の名称】2軸スターセンサ
Document Type and Number:
Japanese Patent JP2685849
Kind Code:
B2
Abstract:
PURPOSE:To realize a sensor with which information of starts in two directions can be obtained by respectively fitting freely openable/closeable shutters to buffles directed in two directions and providing a half mirror. CONSTITUTION:Freely operable/closeable shutters 9 and 10 are respectively fitted to buffles directed in two directions and a half mirror 11 which transmits the star light from one buffle, but reflects the star light from the other buffle is provided. Accordingly, the rays of light of stars made incident on each buffles 7 and 8 can be projected on one image pickup element 13. Therefore, for instance, the start light from one direction is blocked by closing the shutter incorporated in the buffle 7 and the other shutter 10 is opened. Then the star light from the buffle 8 incorporating the opened shutter 10 is made incident and the intensity and position of the start are detected by means of an image pickup element 13, with the data obtained by means of the element 13 being processed at an electronic circuit section 3. Then the opened and closed states of the shutters 9 and 10 are changed and similar processes are performed. When such processes are alternately performed and stars in two directions are identified, the attitude of an artificial satellite can be decided.
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Inventors:
Yamada Mitsuru
Application Number:
JP29945588A
Publication Date:
December 03, 1997
Filing Date:
November 29, 1988
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G01C21/24; B64G1/36; G01C1/00; G01S3/786; (IPC1-7): G01C1/00; B64G1/36
Domestic Patent References:
| JP63246614A | ||||
| JP59164907A | ||||
| JP62138714A | ||||
| JP616100A |
Attorney, Agent or Firm:
Hideaki Tokawa (1 outside)