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US 5,914,488 AGranted
Infrared detector
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTakanori Sone
Life of this patent
Estimating the term…
Abstract
An infrared transmission window 4 is placed on the front of a light reception part 2 formed on a substrate 1 with a cavity 3 between and is bonded to the substrate 1 in airtight relation on a bond face in the range surrounding the light reception part 2, whereby the transmission window 4 is fixed and the cavity 3 is evacuated of air.
Claims4
An infrared sensor comprising:
- a substrate formed with an infrared sensing array of a bolometer system;
- a positive temperature coefficient thermistor bonded to said substrate;
- and
- a vessel being made up of a cap with an infrared transmission window and a stem for fixing said substrate and said thermistor within said vessel, said vessel being evacuated of air, wherein a sudden resistance change temperature range of the positive temperature coefficient thermistor is 40 to 90.degree. C.
1 more element
An infrared sensor comprising:
- a substrate formed with an infrared sensing array of a bolometer system;
- a vessel being made up of a cap with an infrared transmission window and a stem for fixing said substrate within said vessel;
- and
- a positive temperature coefficient thermistor disposed on a bottom of the stem, said vessel being evacuated of air.
1 more element
An infrared detector comprising:
- a substrate having first and second faces;
- and
- an infrared sensing array of a bolometer system as a light reception part formed on the first face of said substrate;
- wherein an infrared transmission window is placed on a front of the light reception part with a cavity therebetween and is bonded to said substrate formed with the light reception part in airtight relation on a bond face completely surrounding the light reception part so that the transmission window is fixed and the cavity is evacuated of air;
- and
- wherein a positive temperature coefficient thermistor is bonded to the second face of said substrate and a sudden resistance change temperature range of the positive temperature coefficient thermistor is 40 to 90.degree. C.
3 more elements
Dependencies are inferred from the claim text.