Infrared rays detecting apparatus
AssigneeFujitsu Limited
InventorsYukihiro Yoshida, Hirokazu Fukuda, Hiroyuki Tsuchida, Shigeki Hamashima, Koji Hirota
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Abstract
An infrared rays detecting apparatus is disclosed wherein the area of a loop provided by an element line and a grounding line formed on an inner tube is minimized to reduce an induced electromotive force to minimize production of noises so that correct detection can be accomplished. A grounding line is interposed for each arbitrary number of element lines on a surface of the inner tube, and the element lines are individually connected to output electrodes of an infrared rays sensor of the multi-element type while the individual grounding lines are connected to a common grounding electrode of the infrared rays sensor.
Claims8
An infrared rays detecting apparatus, comprising:
- an outer tube having an infrared rays transmitting window;
- an inner tube accommodated in said outer tube;
- an infrared rays sensor of the multi-element type carried on said inner tube and having a common grounding electrode and a number of output electrodes corresponding to the number of the elements thereof;
- a plurality of element lines formed on said inner tube and each connected to a corresponding one of said output electrodes;
- a plurality of grounding lines formed on said inner tube and connected commonly to said common grounding electrode, said grounding lines being provided such that each of them is interposed between an arbitrary number of ones of said element lines and another arbitrary number of ones of said element lines;
- low temperature cooling means for cooling said multi-element type infrared rays sensor to a low temperature;
- and
- means for extracting signals from said element lines and grounding lines to the outside of said outer tube.
Dependencies are inferred from the claim text.