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:
Oct. 06, 1987
Filed:
Nov. 14, 1985
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350392 ; 350356 ;
Abstract
An optoelectronic shutter array element useful as a writing head for an optical printer and using a transparent ceramic substrate having an electrooptical effect, which element reduces abrupt change in the electric field strength so as to improve the stability of the permeability of the optoelectronic shutter, the element being provided on the main surface of the transparent ceramic substrate with grooves having therein the electrodes with the electrodes covering the bottom and side wall surfaces of the grooves and the main surface of the substrate in the vicinity of the grooves.