Tunable fabry-perot interferometer and x-ray display device having such an interferometer
CA 1193852 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Adema, Cornelis L.; Pasmans, Johannes M.M.; Haisma, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
12, "ABSTRACT":, "Tunable Fabry-Perot interferometer and X-ray display device having such an interferometer". A tunable Fabry-Perot interferometer the supports of which for the two parallel mirrors consist of bundles of optical fibres and the mirrors are provided on the ends of the fibres, may be used advantageously in an X-ray display device between the display screen on which the visible X-ray image is displayed, and the television camera tube. By using the Fabry-Perot interferometer as a light attenuator in such a device the situation in which the camera tube is overdriven when making an X-ray record can be prevented by causing the reflection coefficient of the mirrors in the visible …
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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 September 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2002.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.