Surveying apparatus

Details Surveying apparatus Surveying apparatus

2007-03-06

2007-03-06

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

Reexamination Certificate

active

11146674

ABSTRACT:
A surveying apparatus includes an irradiation portion provided with an objective lens, and for irradiating a ranging light toward a measured object, a ranging portion for measuring a distance per unit time more than once based on a reflection light reflected by the measured object and entered through the objective lens, a collimation optical system portion for collimating the measured object through the objective lens, the collimation optical system portion being provided with an image processing device configured to obtain a collimation image obtained through the objective lens, and a determination device to determine whether or not a moving obstacle has passed a projection optical path of the ranging light during projecting the ranging light based on an image obtained by the image processing device.

REFERENCES:
patent: 4269491 (1981-05-01), Hagyuda et al.
patent: 5307137 (1994-04-01), Jones et al.
patent: 2004/0233414 (2004-11-01), Jamieson et al.
patent: 0 874 218 (1998-10-01), None
patent: 2000-321055 (2000-11-01), None
patent: P2000-321055 (2000-11-01), None
patent: WO 03/008909 (2003-01-01), None

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