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:
Nov. 14, 1978
Filed:
Oct. 03, 1977
Applicant:
Inventor:
Masao Abe, Tokyo, JP;
Assignee:
Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.), Higashimurayama, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G01J / ;
U.S. Cl.
CPC ...
354 25 ; 250201 ; 356-1 ;
Abstract
A rangefinder mechanism is shown in which the scanning mirror has been reced with a movable scanning optic. The automatic rangefinder system includes a pair of optical paths one a reference path and the other a scanned path which are led to impinge upon a photosensitive surface for comparison purposes. The output of the photosensitive surface is used to adjust the main lens of the camera. Disposed in front of the movable optic is another optical movable relative thereto to coordinate with the position of the main lens of the camera as feedback and adjust the rangefinder system.