Title: Optical switching device

Abstract: A novel electro-optical switch is shown comprising a fixedly mounted lamp, a solid state photo-responsive transistor mounted in position to receive light from the lamp for responsively switching from one state to a second state and actuation means intermediate the transistor and the lamp for obstructing the light path between the lamp and the transistor.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Wuchinich, David G. (New York, NY, US)
Tarsia, Joseph (Valley Stream, NY, US)

Application Number: 672829
Filing Date: 1976-04-01
Publication_date: 1977-09-20
Assignee: Cavitron Corporation (New York, NY)
Primary Class(es): 250/221 250/229, 250/239, 341/31
Other Classes:
US Patent Ref:

2168886	Aug, 1939	Roberts	250/221.
3603982	Sep, 1971	Patti	250/229.
3648050	Mar, 1972	Koo	250/229.
3767022	Oct, 1973	Olson	340/365.
3856127	Dec, 1974	Halfon et al.	340/365.

Other Refs:
Primary Examiner: Nelms, David C.
Assistant Examiner:
Attorney: Sperber; Philip