Motion detector with external range adjustment

Details Motion detector with external range adjustment Motion detector with external range adjustment

1996-08-09

1998-05-26

Glick, Edward J.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250353, G08B 13193, G08B 1319

Patent

active

057570043

ABSTRACT:
A motion detector with a lens-sensor mounting and adjustment arrangement that permits a user to adjust the effective range of the motion detector without altering the sensor's sensitivity settings. The mounting arrangement provides for relative movement of the sensor in relation to the lens matrix through an adjustment accessible to a user from outside the motion detector housing. In a disclosed embodiment a sensor is mounted on a printed circuit board that is disposed to slide on elongate rails. An expansible actuator assembly includes a threaded traveling member coupled to a threaded drive member, one end being accessible through the motion detector housing for engagement by a user and the other end being coupled to the printed circuit board so as to actuate movement of the sensor with respect to the lens.

REFERENCES:
patent: 5103346 (1992-04-01), Chang
patent: 5434764 (1995-07-01), Lee

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