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.

Date of Patent:
Jul. 10, 1984

Filed:

May. 01, 1981
Applicant:
Inventor:

Stephen A Miller, Upland, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
3241 / ; 3241 / ;
Abstract

A method and apparatus is disclosed for the measurement of the long-term bility of photodetectors. A fiber optic star coupler divides optical flux from a source of light into highly stable proportioned light outputs. Each of the photodetectors to be tested is connected to be irradiated by one of the star coupler light outputs. Each of at least one reference photodetectors having known stabilities is connected to one of the remaining outputs of the star coupler. Resulting outputs of the photodetectors to be tested are compared against the resulting output from the reference photodetector.


Find Patent Forward Citations

Miller, Stephen. (1984). Method and apparatus for precise measurement of long-term stability of (U.S. Patent No. 4459547). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4459547

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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