The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1993
Filed:
Nov. 13, 1991
Applicant:
Inventors:
Hiroto Shibuya, Tokyo, JP;
Kouichi Kitagata, Tokyo, JP;
Assignee:
Kabushiki Kaisha Topcon, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356-5 ; 356-4 ;
Abstract
This invention concerns a light wave distance meter which comprises a telescope unit supported on a framework such that the unit can rotate about a horizontal axis. This unit being provided with a telescope having a target in its line of sight, with an analog photoemitter which directs modulated light emitted by an optical device at the target, and with an analog photodetector which receives modulated light reflected from said target so as to measure the distance to said target.