Control switch apparatus operable by an object placed adjacent t

Details Control switch apparatus operable by an object placed adjacent t Control switch apparatus operable by an object placed adjacent t

1997-10-02

1999-11-02

Lefkowitz, Edward

Communications: electrical

Visual indication

Audio responsive lamp

3405453, 3406861, 3406866, 34082519, 250221, 2502221, 250229, 315155, G08B 500

Patent

active

059778784

ABSTRACT:
A "no touch", two state switch is controlled by light emitted thereby which is reflected back to the switch to actuate or deactuate the switch when reflected by a hand or other object spaced from but adjacent to the switch.

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patent: 5763872 (1998-06-01), Ness

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