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:
Feb. 06, 1990
Filed:
Jun. 23, 1988
Yuji Ooba, Tokyo, JP;
Shigeo Sugihara, Kunitachi, JP;
Tadaaki Masumori, Kodaira, JP;
Shinichi Shiwa, Yokosuka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A two-dimensional recording head is provided which controls respective windows of a liquid crystal cell array to open and close for light and can hold them in the opened and closed states. A light source is disposed at one side of the head, at the other side of which are disposed an image-forming lens system for exposing a recording medium to an image formed on the head by the opened and closed states of the windows. A controller is provided for controlling the quantity of light which is applied to the recording medium. The image is written into the head by a binary image signal and the exposure is started, with the written image held unchanged. The controller stops the exposure when the quantity of light applied to the recording medium reaches a predetermined value.