Patent ID: 6367972
Filing Date: 2002-04-09
Classification: G01J

Abstract:
A non-contact temperature sensor comprising:a holder serving as a light conducting portion for guiding infrared rays incident from a first opening at one of opposing ends; a plastic film arranged at a second opening of the other end of said light conducting portion, the plastic film having a first side facing the first and second openings and a second side, opposed to the first side; a cover for sealing the second opening at the other of the opposing ends of the holder so as to provide a space between the cover and said plastic film; an infrared ray detecting heat-sensitive element formed on the second side of said plastic film, facing the space between the cover and the plastic film, for detecting the infrared rays incident from said first opening; and a temperature compensating heat-sensitive means arranged in the vicinity of the holder, for detecting the temperature of said holder, both the infrared ray detecting heat-sensitive element and the temperature compensating heat-sensitive means are connected to a wiring pattern formed also on the second side of the plastic film.