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:
Mar. 02, 1999
Filed:
Apr. 01, 1997
Applicant:
Inventors:
Satoru Nakamura, Tokyo, JP;
Shinichi Suzuki, Tokyo, JP;
Takayuki Sensui, Tokyo, JP;
Takayuki Ito, Tokyo, JP;
Hirofumi Matsuo, deceased, late of Saitama-ken, JP;
Tatsuo Gotoh, Tokyo, JP;
Yasuo Nakamura, Tokyo, JP;
Assignees:
Asahi Seimitsu Kabushiki Kaisha, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G01B / ;
U.S. Cl.
CPC ...
359426 ; 359429 ; 356375 ;
Abstract
An automatic focus detecting telescope which offers easy maintenance and which, when applied to a surveying instrument such as an auto-level, provides easy detachment and attachment of an optical horizontal compensation system. Even if the optical horizontal compensation system is detached, no readjustments are required for the automatic focusing apparatus and the eyepiece optical system.