Infrared detector
CA 1308283 C · Owner: Tajime, Toru · Inventors: Wakabayashi, Satoshi; Nonoyama, Tohru; Tajime, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is configured in that a Dewar window is formed in the shape of a spheroid, a dielectric filter is formed on a surface of the Dower window by deposition and an, infrared detection element is mounted at a position within a focal circle of the spheroid. Since a cold filter required for cooling is omitted and reduction of noise equivalent thereto is achieved, heat load for a coolant is reduced and a time needed for cooling is decreased to a great extent.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.