Lamp with coating reflecting middle infrared and...

Details Lamp with coating reflecting middle infrared and... Lamp with coating reflecting middle infrared and...

2007-04-17

2007-04-17

O'Shea, Sandra (Department: 2875)

Illumination

Modifier mountable on light source envelope

C362S293000, C362S510000, C362S543000, C313S112000, C313S113000, C313S114000

Reexamination Certificate

active

10538112

ABSTRACT:
A lamp for night sight applications includes a bulb that transmits both visible and infrared light. The lamp also includes a coating that reflects middle infrared radiation and is transparent to near infrared radiation to increase output efficiency in the near infrared spectral range. There may be a second coating that blocks visible light on part of the lamp—and the second coating may be on an external bulb, while the first coating is on an internal bulb. The lamp is preferably used as a vehicle headlamp with a reflector that reflects near infrared radiation and is transparent to visible light. The second coating and reflector may be on the lower part of the lamp.

REFERENCES:
patent: 4734614 (1988-03-01), Kuus
patent: 4774396 (1988-09-01), Salit et al.
patent: 6404112 (2002-06-01), Frings
patent: 2002/0063503 (2002-05-01), Tsuda et al.
patent: 10027018 (2000-05-01), None
patent: 418784 (1991-03-01), None
patent: 07220692 (1995-08-01), None
patent: 10 268129 (1999-01-01), None

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