Distance-measuring system

Details Distance-measuring system Distance-measuring system

2007-03-27

2007-03-27

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S004010, C356S004020, C356S004030

Reexamination Certificate

active

10837765

ABSTRACT:
A distance-measuring system, which comprises a light source unit for emitting a distance-measuring light, a photodetection optical system having a photodetection optical axis, a projecting optical system having a projecting light optical axis and for projecting the distance-measuring light from the light source unit to an object to be measured and for guiding the distance-measuring light reflected from the object to be measured toward the photodetection optical system, and an internal reference optical system for guiding the distance-measuring light from the light source unit to the photodetection optical system as an internal reference light, wherein the light source unit can emit two distance-measuring lights with different spreading angles, and one of the light source unit and the projection optical system has a decentering member for decentering the distance-measuring light with respect to the projecting light optical axis.

REFERENCES:
patent: 5532813 (1996-07-01), Ohishi et al.
patent: 5703677 (1997-12-01), Simoncelli et al.
patent: 2002/0105631 (2002-08-01), Nonaka et al.
patent: 2000-088566 (2000-03-01), None

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