Infra-red coupling mechanism for a light projector

Details Infra-red coupling mechanism for a light projector Infra-red coupling mechanism for a light projector

1990-09-04

1993-01-05

Lazarus, Ira S.

Illumination

Light source and modifier

Adjustable or repositionable light source or light source...

362269, 362285, 362287, 362418, F21V 2100

Patent

active

051764423

ABSTRACT:
A light projector is presented including a wireless power coupling mechanism and infra-red communications coupling mechanism which provide a portion of the projector with the capability of complete full-circle rotation about its pan-axis. A stationary base is provided which includes a first transmitter and receiver means for transmitting control signals to and receiving information signals from a second transmitter and receiver means on the rotating portion of the projector. A pan-axis shaft includes the second transmitter and receiver means for transmitting information signals to and receiving control signals from the transmitter-receiver means on the stationary base, and is operative to rotate the rotatable portion of the projector. The infra-red coupling mechanism and wireless power coupling mechanism eliminate the need for hard-wiring between the base and rotating portion of the projector, greatly facilitating continuous and efficient motion thereof.

REFERENCES:
patent: 3842403 (1974-10-01), Konopka
patent: 3924120 (1975-12-01), Cox, III
patent: 4320385 (1982-03-01), Bleiweiss et al.
patent: 4598345 (1986-07-01), Kleeman
patent: 4797795 (1989-01-01), Callahan
patent: 5031082 (1991-07-01), Bierand

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