146.
(11) Patent number: 2148802
(46) Date of publication: 10.05.2000
(51) Int. Cl.7: G 01 J 5/38
(21) Application number: 99101560/28
(22) Application date: 27.01.1999
(71) Applicant:
Institut fiziki poluprovodnikov SO RAN
(72) Inventor:
Bazovkin V.M.,
Kuryshev G.L.
(73) Proprietor:
Institut fiziki poluprovodnikov SO RAN
(98) Mail address:
630090, g.Novosibirsk, pr. Akad. Lavrent'eva 13, Institut fiziki poluprovodnikov SO RA
(54) DEVICE FOR DETECTION OF HEAT RADIATION
(57)
FIELD: heat vision equipment, in particular, detection of heat images of objects or measuring their temperature. SUBSTANCE: device has light absorbing plate with mirror surface, which is directed to substrate and is mounted on frontal surface of dielectric or semiconductor flat-parallel polished substrate, which is transparent to visible light. Mirror surface is mounted using structure that has member, which is made from two layers of materials with different heat expansion rates. In addition device has light source, which provides uniform illumination of coated substrate surface. Light enters frontal surface of substrate and mirror surface of light absorbing plate. Beams which are reflected from frontal surface of substrate and mirror surface of light absorbing plate interfere, so that intensity of reflected light depends on position of light absorbing plate, which depends on member, which is made from materials with different expansion rates. In addition device has photodetector, which is sensitive to visible light. Substrate, which carries light absorbing plate (or plates, in matrix design) is located in vacuum thermostat. EFFECT: decreased cost, increased sensitivity. 5 dwg.
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