Optical seat switch

Details Optical seat switch Optical seat switch

B - Operations, Transporting

60

R

340/124.4

B60R 16/02 (2006.01) B60Q 9/00 (2006.01) G07B 13/02 (2006.01) H03K 17/94 (2006.01)

Patent

CA 1254967

-15- Abstract of the Disclosure Optical Seat Switch Seat switches for detecting the presence and absence of an occupant in the seat of a vehicle are commonly used on industrial and commercial vehicles. It is desirable that the control signal produced by such seat switches be responsive only to the presence and absence of the vehicle occupant, and be relatively simple, rugged, and inexpensive. The instant invention includes an emitting device for directing a source of coded radiant energy across a vehicle seat, and a detecting device for receiving radiant energy, including a portion of the coded radiant energy in response to the seat being vacant. The detecting device produces an electrical signal in response to the received radiant energy. An electrical circuit produces a control signal only in response to the detecting device receiving the coded radiant energy.

517470

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