Apparatus emitting an electromagnetic radiation, in particular i

Details Apparatus emitting an electromagnetic radiation, in particular i Apparatus emitting an electromagnetic radiation, in particular i

1988-11-22

1990-05-01

Berman, Jack I.

Radiant energy

Radiant energy generation and sources

With radiation modifying member

2505051, 2504931, 350628, 350630, F21J 712

Patent

active

049221078

ABSTRACT:
This invention relates to an apparatus emitting infrared radiation which comprises a plane source of infrared rays and a reflector. In order to avoid the problem due to captive rays and to multiple reflections, the cross section of each half-reflector located on one side of the plane of symmetry has the form of an arc of ellipse whose two foci are respectively constituted by the first end of the plane source and the first end of the target which are both located on the other side of the plane of symmetry, this arc of ellipse extending between the second end of the plane source and the point of intersection of the ellipse with the direct ray going from the first end of the plane source to the second end of the target.

REFERENCES:
patent: Re17038 (1928-07-01), Ballman
patent: 3449561 (1969-06-01), Basil
patent: 3827059 (1974-07-01), Rambauske
patent: 3923381 (1975-12-01), Winston
patent: 4003638 (1977-01-01), Winston
patent: 4066887 (1978-03-01), Levis
patent: 4114592 (1978-09-01), Winston
patent: 4129115 (1978-12-01), Wyatt
patent: 4130107 (1978-12-01), Rabl et al.
patent: 4327969 (1982-05-01), Giutronich et al.
patent: 4596935 (1986-06-01), Lumpp

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