Optical anti-theft system

Details Optical anti-theft system Optical anti-theft system

1995-09-01

1998-04-28

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 34082532, 3408253, 307 102, 307 104, 307 105, 70278, 235382, E05B 4902, B60R 2200, H01H 2700

Patent

active

057450455

ABSTRACT:
An optical anti-theft system incorporates a member having a plurality of reflective surfaces. The plurality forms a pattern corresponding with the security code. The system additionally incorporates a base for receiving the member. The base incorporates a light source for generating a light beam to illuminate the plurality of reflective surfaces, and a light detector for sensing the illuminated plurality of reflective surfaces and for initiating a security function in response to the sensed illuminated plurality of reflective surfaces having the pattern.

REFERENCES:
patent: 3767002 (1973-10-01), Gillund
patent: 4298792 (1981-11-01), Granholm et al.
patent: 4645233 (1987-02-01), Bruse et al.
patent: 4673914 (1987-06-01), Lee
patent: 4749873 (1988-06-01), Mutoh et al.
patent: 4751396 (1988-06-01), Daigle et al.
patent: 5043593 (1991-08-01), Tsutsumi et al.
patent: 5119065 (1992-06-01), Wiehagen
patent: 5280267 (1994-01-01), Reggiani
patent: 5394135 (1995-02-01), Stadler

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