Optics: measuring and testing – Angle measuring or angular axial alignment – Automatic following or aligning while indicating measurement
Reexamination Certificate
2006-07-04
2006-07-04
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Angle measuring or angular axial alignment
Automatic following or aligning while indicating measurement
C356S141100, C356S004010, C356S005010
Reexamination Certificate
active
07072032
ABSTRACT:
The present invention comprises an illumination portion (11), a light receiving portion (12), disposed in the surveying machine body (8), having an image sensor (27) for receiving a reflection light image (MO) of the measurement light, arithmetic means (38) for calculating a position in an area of the image sensor (27) for the reflection light image (MO) from a reflector (2), and a rotation mechanism for rotating the surveying machine body (8) so as to position the reflector (2) on a light receiving optical axis of the light receiving portion (12) based on the position obtained by the arithmetic means (38), and the light receiving portion (12) is provided with a light receiving sensor (47) having a smaller area than the area of the image sensor (27) on the light receiving optical axis in a conjugated position with the image area (27), and the arithmetic means (38) distinguishes the reflector2based on an output of the light receiving sensor (47).
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Kumagai Kaoru
Saito Masahiro
Yamaguchi Shinji
Chapman and Cutler LLP
Kabushiki Kaisha Topcon
Ratcliffe Luke D.
Tarcza Thomas H.
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