Illumination – With container
Patent
1990-09-06
1992-02-18
Lazarus, Ira S.
Illumination
With container
362310, 362362, 356243, F21V 3300
Patent
active
050899414
ABSTRACT:
A flux containment device entraps an unneeded portion of the radiated ene emitted by a reference source lamp so that a determinable amount of radiation is projected to electro-optical sensors for calibration purposes. A double-walled, concentric can-shaped enclosure, provided with a nonreflective coating on its inside surfaces, has an aligned calibration optical axis aperture for projecting the determinable amount of radiation and a diametrically opposed light trap opening to accommodate a light trap that eliminates unwanted reflections. The double walls are held apart by nonconductive spacers to avoid unwanted heat transfer. A fan forces cooling air through an appropriately located vent hole in the can-shaped enclosure to avoid direct impingement on the lamp. One end of the can-shaped enclosure is provided with a disc-shaped baffle having appropriate spacing and openings to permit the flow of cooling air from the fan and the opposite end is appropriately shaped to accommodate a mounting surface, such as, for example, a lathe bed bench structure.
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patent: 3413066 (1968-11-01), Biber et al.
patent: 3610737 (1971-10-01), Bender
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patent: 3699471 (1972-10-01), Mulready et al.
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patent: 4344668 (1982-06-01), Gunther et al.
patent: 4634854 (1987-01-01), Wirick
patent: 4641933 (1987-02-01), Blom
patent: 4772102 (1988-09-01), Fergason et al.
Fendelman Harvey
Hagarman Sue
Keough Thomas G.
Lazarus Ira S.
The United States of America as represented by the Secretary of
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