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. 13, 1996
Filed:
Jun. 28, 1994
Applicant:
Inventors:
Peter R Bratt, Goleta, CA (US);
David R Nelson, Santa Barbara, CA (US);
Assignee:
Santa Barbara Research Center, Goleta, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
2503384 ; 2503381 ; 250353 ;
Abstract
Optical immersion of a semiconductor photodetector to a plano-convex lens is obtained with a spring arranged to urge the photodetector to abut the lens. To facilitate alignment of the detector and the lens, the spring defines, in one embodiment, a convex surface to abut a substrate that carries the detector. In another embodiment, alignment is facilitated by a ball positioned between the spring and the substrate. Optical noise is reduced by a dielectric between the detector and the lens, with the dielectric thickness less than 1/10 of any radiation wavelength of interest.