Image sensing apparatus utilizing pixel-shifting
CA 2246404 A1 · Owner: Canon Denshi Kabushiki Kaisha · Inventors: Shimada, Koichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Two plane parallel plates, orthogonally intersecting each other, are provided in front of a CCD device. The plane parallel plate is supported by its two ends which are deviated from an optical path. Each end of the plane parallel plate includes an armature made of soft electromagnetic iron, and two electromagnets are provided in the optical axis direction while, sandwiching each armature. By the on/off state of the two electromagnets, the armature can control the optical device in three angled positions, thus the optical device can have three shift positions with respect to the optical axis. Therefore, by virtue of the optical devices, an optical path can be determined by selecting a shift …
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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
- Filed August 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2020.
- 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.