Multiposition rotary switch with phototransistors

Details Multiposition rotary switch with phototransistors Multiposition rotary switch with phototransistors

1984-05-30

1986-12-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250227, 250229, G01V 904

Patent

active

046313990

ABSTRACT:
A switch including a rotor within a housing with the housing including a circular array of phototransistors. The rotor includes light transmission means such as a fiber optic which transmits light from a centrally located diode to a selected phototransistor. Each phototransistor is in circuit with a power source and with an output lead. A detent retains the rotor against undesired movement.

REFERENCES:
patent: Re30094 (1979-09-01), Beeck
patent: 4304630 (1981-12-01), Tanner
patent: 4338518 (1982-07-01), Brienza et al.
patent: 4342909 (1982-08-01), Accatino

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