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:
Feb. 24, 1981
Filed:
May. 29, 1979
Bor-Uei Chen, Northridge, CA (US);
Hughes Aircraft Company, Culver City, CA (US);
Abstract
Apparatus is provided comprising a laser source, a collimating lens, a focussing lens and a detector array disposed along an optical path. A surface acoustic wave transducer is disposed between the collimating and focussing lenses and is adapted to modulate laser light provided by the laser source as a function of the amplitude and frequency of energy applied to the transducer. In accordance with the invention, a 90.degree. Bragg diffraction grating disposed between the collimating lens and the transducer, is adapted for transmitting light of a predetermined frequency and predetermined polarization along the optical path. A specific embodiment incorporates the components on an integrated circuit chip.