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:
Jul. 01, 1980
Filed:
Jan. 02, 1979
James C North, New Providence, NJ (US);
David P Schinke, Berkeley Heights, NJ (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
A silicon photodetector capable of long wavelength response which includes means for aligning an optical fiber for edge illumination. The detector is formed in a silicon body (11 and 12) with major surfaces lying in the (110) plane. A groove (23) is etched in the body adjacent the detector to produce sidewalls (24) and an end wall (25) lying in (111) planes. The sidewalls form a v-shaped groove with a depth precisely determined by the width of the groove so that an optical fiber (26) placed in the groove is vertically aligned with the detector. The end wall is perpendicular to the surface of the body so that light from the fiber is not refracted from the plane of the detector.