Infrared radiation emitter

Details Infrared radiation emitter Infrared radiation emitter

2006-10-17

2006-10-17

Wells, Nikita (Department: 2881)

Radiant energy

Radiant energy generation and sources

With radiation modifying member

C250S50400H, C250S50400H

Reexamination Certificate

active

07122815

ABSTRACT:
An emitting source capable of radiating substantial energy in the near infrared spectrum and suitable for use in non-dispersive infrared gas analyzers or other devices is described. Operation can be steady state (DC) or pulsed at high frequency with excellent modulation characteristics. The device consists of a tungsten filament mounted across the pins of a small transistor outline header and centered at the focal point of a parabolic or other shaped reflector. The header assembly is enclosed by a resistance-welded cap and window assembly having a specially sealed sapphire or other suitable IR transmissive window. Fundamental to the operation of the inventive IR emitter is the incorporation of a getter within the header package configured to prevent oxidation degradation of the tungsten filament. An inert gas backfill limits filament evaporation and further extends apparatus lifetime.

REFERENCES:
patent: 2910606 (1959-10-01), Suter
patent: 4604680 (1986-08-01), Levin et al.
patent: 4734612 (1988-03-01), Sasaki et al.
patent: 4864180 (1989-09-01), English et al.
patent: 5438233 (1995-08-01), Boland et al.
patent: 5610469 (1997-03-01), Bergman et al.
patent: 5838016 (1998-11-01), Johnson
patent: 5838104 (1998-11-01), Rutan et al.
patent: 5939726 (1999-08-01), Wood
patent: 6469443 (2002-10-01), Bryant et al.
patent: 6472818 (2002-10-01), Ikeda et al.
patent: 6586878 (2003-07-01), Tu
patent: 6777701 (2004-08-01), Inbar

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