Auto level with a laser

Details Auto level with a laser Auto level with a laser

2004-12-22

2008-10-07

Alsomiri, Isam (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C359S431000

Reexamination Certificate

active

07433022

ABSTRACT:
The auto level with a laser radiates laser light along an optical axis of a visible optical system and comprises of a visible optical system with an automatic horizontal compensation mechanism prism mirror and a beam splitter disposed between an objective lens and an eyepiece. The auto level with a laser is capable of measuring from 5 meters to 300 meters when using the laser light and 0.8 meters to infinity when using the optical sight.

REFERENCES:
patent: 3515480 (1970-06-01), Korones et al.
patent: 6441887 (2002-08-01), Kao
patent: 7012688 (2006-03-01), Northby
patent: 7177015 (2007-02-01), Ohtomo et al.
patent: 2005/0200949 (2005-09-01), Shirai et al.
patent: 2006/0039065 (2006-02-01), Dunne

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