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. 10, 1992
Filed:
Nov. 13, 1990
Applicant:
Inventors:
Hideki Imanishi, Osaka, JP;
Kenjiro Hamanaka, Osaka, JP;
Assignee:
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385120 ; 355-1 ; 385 35 ; 385147 ;
Abstract
An image transmitting element is disclosed, which comprises: a transparent substrate; photo-transmissible holes one-dimensionally or two-dimensionally formed as an array in the substrate, each of the holes having a substantially cylindrical side surface and at least two substantially semi-spherical surfaces; a photo-absorptive surface formed on at least a part of the cylindrical side surface of the photo-transmissible holes; and a transparent material with which the photo-transmissible holes are filled, the transparent material having a refractive index higher than that of the substrate.