Infrared radiation sources, sensors and source combinations, and methods of manufacture
First Claim
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1. A narrow band incoherent radiation emitter detector comprising:
- a planar filamental emission/detection element characterized by a predetermined spectral range of emitted/detected radiation and a emission/detection width of dl/1 less than about 0.1, where 1 is the wavelength of said radiation, wherein said emission/detection width is substantially determined by surface features of said emission/detection element.
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Abstract
A blackbody radiation device (110) includes a planar filament emission element (102) and a planar detector (104) for respectively producing and detecting radiation having width dl/1 less than about 0.1 to test a sample gas, where 1 is the wavelength of the radiation; a reflector (108); a window (W); an electrical control (118); and a data output element (116).
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Citations
27 Claims
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1. A narrow band incoherent radiation emitter detector comprising:
a planar filamental emission/detection element characterized by a predetermined spectral range of emitted/detected radiation and a emission/detection width of dl/1 less than about 0.1, where 1 is the wavelength of said radiation, wherein said emission/detection width is substantially determined by surface features of said emission/detection element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15)
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13. A gas detector comprising:
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A. a planar filamental emission/detection element characterized by a predetermined spectral range of emitted/detected radiation and a emission/detection width dl/1 less than about 0.1, where 1 is the wavelength of said radiation, wherein said emission/detection width is substantially determined by surface features of said emission/detection element, said emission/detection element having an input/output axis, and B. a first reflector disposed along said input/output axis and opposite to said emission/detection element, whereby an optical path is defined from said emission/detection element to said first reflector to and back to said emission/detection element, wherein said optical path between said emission/detection element and said first reflector passes through a gas test region. - View Dependent Claims (14, 16, 17, 18, 19, 20)
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21. A gas detector comprising:
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A. a planar filamental emission element characterized by a predetermined spectral range of emitted radiation and an emission width dl/1 less than about 0.1, where 1 is the wavelength of said emission element having an output axis, wherein said emission width is substantially determined by surface features of said emission/detection element, B. a first reflector disposed along said output axis, and C. a planar filamental detection element characterized by a predetermined spectral range of detected radiation and an emission/detection width dl/1 less than about 0.1, where 1 is the wavelength of said detection element having an input axis, whereby an optical path is defined from said emission element to said first reflector and to said first detection element, wherein said optical path between said emission element and said first reflector, or between said first reflector and said detection element or both, passes through a gas test region. - View Dependent Claims (22, 23, 24, 25)
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26. A multi-wavelength radiation emitter/detector array comprising:
an array of planar emission/detection elements, each element being characterized by a predetermined spectral range of emitted/detected radiation and an emission/detection width dl/1 less than about 0.1, when 1 is the wavelength of said radiation, wherein each emission/detection width is substantially determined by surface features of each respective emission/detection element. - View Dependent Claims (27)
Specification