Security sensor with built-in sight

Details Security sensor with built-in sight Security sensor with built-in sight

1997-05-28

1998-09-22

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340501, 340693, G08B 13183

Patent

active

058120580

ABSTRACT:
A security sensor equipped with a sighting device in which respective optical axes of a beam projector and a beam receiver can be adjusted easily and quickly. The beam receiver A includes an adjustment (50) for adjusting the optical axis, a mirror-equipped sighting device (C) having a viewing window (12) through which viewing is possible from a lateral side of the beam receiver (A), a light emitting element (8) and a mirror (14) accommodated therein for presenting an image of the beam projector (B), and a lamp control (6) for changing a status of the light emitting element (8) in correspondence with the amount of light received from the beam projector (B).

REFERENCES:
patent: 3752978 (1973-08-01), Kahl, Jr. et al.
patent: 5334972 (1994-08-01), Sugimoto et al.
patent: 5596310 (1997-01-01), Itoh

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