Automatic tracking apparatus for reflector

Details Automatic tracking apparatus for reflector Automatic tracking apparatus for reflector

2005-10-25

2005-10-25

Smith, R. Alexander (Department: 2859)

Geometrical instruments

Straight-line light ray type

Level

C356S139040, C250S203200

Reexamination Certificate

active

06957493

ABSTRACT:
The present invention comprises an illumination portion (11), which is disposed in a surveying machine body (8), for illuminating measurement light toward a reflector (2), a light receiving portion (12), which is disposed in the surveying machine body (8), having an image sensor for receiving a reflection light image (M0) of the measurement light illuminated toward the reflector (2), arithmetic means (37) for calculating a position in an area (Q2) of the image sensor (27) for the reflection light image (M0) from the reflector, and a rotation mechanism for rotating the survey machine body (8) so as to position the reflector (2) on a light receiving optical axis (O2) of the light receiving portion (12) based on the position obtained by the arithmetic means (37), and a light receiving area (Q3) which is a smaller area than the area (Q2) of the image sensor (27) and has the light receiving optical axis (O2) as a center is provided in the area (Q2) of the image sensor (27).

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patent: 05-322569 (1993-12-01), None

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