U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Ambiance lighting system with temperature responsive variable color output

Patent 7344277 Issued on March 18, 2008. Estimated Expiration Date: Icon_subject August 29, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Inventors

Assignee

Application

No. 11214195 filed on 08/29/2005

US Classes:

362/276, Condition responsive362/96, WITH FLUID DISTRIBUTER362/231, Different wavelengths362/294, With ventilating, cooling or heat insulating means362/373, With cooling means362/488, Interior362/489, Dashboard362/547, With cooling or ventilating feature236/49.3, Electrically actuated236/94, With indicator or alarm340/461, With particular display means340/815.4VISUAL INDICATION

Examiners

Primary: Cariaso, Alan
Assistant: Spinella, Kevin J.

Attorney, Agent or Firm

International Classes

F21V 23/04
B60Q 3/02
B60Q 3/04

Abstract

An ambiance lighting system for a vehicular passenger compartment has a variable color light output which is automatically responsive to temperature changes. First and second light sources of different colors (e.g., blue and red) are positioned immediately behind the air discharge vents and are selectively energized by a control circuit so that the first light source radiates light through the vent when the temperature falls below a predetermined value and the second light sources energizes the second color of light when the air temperature rises above a predetermined value. Sensors are used to detect the temperature of air, preferably in the ducting plenum. Various control strategies can be deployed to achieve aesthetically interesting light presentations which enhance ambiance within the passenger compartment.

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