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:
Oct. 27, 1998
Filed:
May. 19, 1997
Alan R Pearlman, Newton Highlands, MA (US);
Mini-Systems, Inc., N. Attleboro, MA (US);
Abstract
An optoisolator includes one or more light-emitting diodes (LEDs) within a compartment defined by walls of photocells, where the majority of light emitted by the LED impinges directly upon a photocell and is converted to electricity with a minimum of loss. The photocells are attached together by abutting the end of one photocell to the surface of another, as in a butt joint. In one embodiment, the LEDs is inserted into an opening in the compartment and secured by filling the compartment with a light-transmissive, non-conductive material. In another embodiment, the LEDs and photocells are mounted to a substrate. Optionally, each photocell has more than one electrically-independent photosensitive surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile