Two-level security lighting system

Details Two-level security lighting system Two-level security lighting system

1996-02-13

1997-01-28

Pascal, Robert

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Electric switch controlled by the radiant energy responsive...

315155, 315149, 2503381, 250238, H05B 3702

Patent

active

055980660

ABSTRACT:
A security light has a quartz-halogen lamp, a photocell, a passive infrared sensor for detecting motion external to the security light, and a circuit which causes the quartz-halogen lamp to operate at about 50% of full brightness in the absence of detection of motion at night, to operate at 95% of full brightness for a predetermined time interval in response to detection of motion at night, and to be off while the photocell is detecting daylight. A switch allows the user to select a different mode of operation which is similar except that the lamp is kept off in the absence of detection of motion at night. A user-initiated override mode is also provided, which causes the lamp to continuously operate at 95% of full brightness until the photocell detects daylight or until the user disables the override mode.

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Nippon Ceramic Co., Ltd., "PIR Passive Infrared Energy Control Switch Instruction Manual", Undated but published more than 1 year before the filing date or the parent application Ser. No. 08/282,986, filed on Jul. 29, 1994.

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