Infrared detector and drive method therefor
AssigneeNEC Corporation
InventorAkio Tanaka
Life of this patent
Estimating the term…
Abstract
A detector comprises an infrared reflection layer and a diaphragm member, the infrared reflection layer and the diaphragm member facing each other, with a space intervening therebetween, and the diaphragm member comprises an infrared absorbable layer. A signal varies a distance between the diaphragm member and the infrared reflection layer, and thus a band of an absorbed wavelength is varied. The distance is varied by a voltage applied between a first conductive layer disposed at the infrared reflection layer side and a second conductive layer disposed at the diaphragm side. In driving the detector, a surface of the diaphragm is contacted with a surface of the structure temporarily by altering a voltage applied therebetween.
Claims11
An infrared detector including an infrared reflection layer and a diaphragm member facing each other, with a space intervening therebetween, the diaphragm member having an infrared absorbable layer, wherein:
- the diaphragm member includes means for varying a distance of said diaphragm member relative to the infrared reflection layer in dependence on a wavelength of an incident infrared ray.
A method for controlling an infrared detector including an infrared reflection layer and a diaphragm member facing each other, with a space intervening therebetween, the diaphragm member having an infrared absorbable layer, comprising varying the distance between the diaphragm member and the infrared reflection layer in dependence on a wavelength of an incident infrared ray.
A method for controlling an infrared detector including an infrared reflection layer and a diaphragm member facing each other, with a space intervening therebetween, the diaphragm member having an infrared absorbable layer, comprising temporarily bringing a surface of the diaphragm member into contact with a surface of a structure of the infrared reflection layer during operation of said detector, thereby to dissipate heat accumulated within said diaphragm member.
A method for controlling an infrared detector including an infrared reflection layer and a diaphragm member facing each other, with a space intervening therebetween, the diaphragm member having an infrared absorbable layer, comprising varying the distance between the diaphragm member and the infrared reflection layer in dependence on a wavelength of an incident infrared ray, wherein a surface of the diaphragm member and a surface of a structure of the infrared reflection layer are temporarily brought into contact with each other.
Dependencies are inferred from the claim text.