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:
Aug. 15, 1989
Filed:
Mar. 25, 1988
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250578 ; 2502 / ; 358101 ; 358225 ;
Abstract
A part such as electronic parts is irradiated by diffused light and a silhouette of the parts is sensed by an image sensor, and plural optical systems are placed between the parts and the image sensor, and thereby the silhouette of the parts is divided into plural portions, moreover a shutter having plural openings is provided between the image sensor and the optical system to select one of the plural optical systems; thus one of respective silhouettes of the plural portions is sensed by the image sensor, and the portions are sensed in turn by shifting the shutter.