Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1989-06-30
1990-09-11
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250226, 2505781, 350 17, 350404, G02B 520, G01J 336
Patent
active
049565559
ABSTRACT:
A multicolor focal plane array, which detects and distinguishes between incoming electromagnetic radiation within first and second bands of wavelengths, includes a substrate and a two dimensional array of detectors disposed on the substrate and responsive to electromagnetic radiation within a predetermined range of wavelengths including the first and second wavelength bands. A first multilayer thin film filter is disposed on the substrate and interposed between the incoming radiation and a first subset of the detectors in the array, while a second multilayer thin film filter is disposed on the substrate and interposed between the incoming radiation and a second subset of the detectors in the array. The first and second filters include a dielectric/thin metal/dielectric layer combination, the filters differing only in that the thickness of the dielectric layers in the first filter combination are adjusted to select the first wavelength band, while the thicknesses of the dielectric layers in the second filter combination are adjusted to select the second wavelength band. In this manner, the detectors in the first subset are made sensitive to radiation within the first wavelength band, while the detectors in the second subset are sensitive to radiation within the second wavelength band.
REFERENCES:
patent: 3962578 (1976-06-01), Roschen
patent: 3996461 (1976-12-01), Sulzbach et al.
patent: 4093353 (1978-06-01), Lang
patent: 4158133 (1979-06-01), Spaeth et al.
patent: 4253022 (1981-02-01), Allen et al.
patent: 4269481 (1981-05-01), Yeh et al.
patent: 4373782 (1983-02-01), Thelen
patent: 4522862 (1985-06-01), Bayer et al.
patent: 4547074 (1985-10-01), Hinoda et al.
patent: 4596930 (1986-06-01), Steil et al.
patent: 4645290 (1987-02-01), Walsh
patent: 4822998 (1989-04-01), Yokota et al.
Berning et al., "Induced Transmission in Absorbing Films Applied to Band Pass Filter Design", Journal of the Optical Society of America, vol. 47, pp. 230-239, 1957.
Turner, "Some Current Developments in Multilayer Optical Film", Journal de Physique et le Radium, vol. II pp. 443-460, 1950.
Deinken John J.
Glick Edward J.
Hannaher Constantine
Rockwell International Corporation
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