Surveying instrument

Details Surveying instrument Surveying instrument

1992-02-19

1993-06-01

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

2502032, 2502061, 2502062, 356141, 358125, 358126, G01B 1126, G01J 120, H04N 5225

Patent

active

052164802

ABSTRACT:
A surveying instrument comprising optical system means having an optical axis to be coincided with an object to be observed, positional deviation detecting means for detecting the deviation of said optical axis with respect to the object and either means for displaying the detection result of said positional deviation detecting means or means for driving said optical system according to the detection results of said positional deviation detecting means so as to bring said axis in coincidence with the object. According to the present invention, an observer can achieve surveying operation over watching the display, and thus easy and accurate operation is possible.

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patent: 4682218 (1987-07-01), Kaneko
patent: 4712915 (1987-12-01), Kosakowski et al.

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