Method and equipment for printing 3-d stereograph
CA 2116554 C · Owner: Noritsu Koki Co. Ltd. · Inventors: Itojima, Mitsuhiko; Yamamoto, Kazuyoshi; Miyawaki, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A negative monitoring device comprising a CCD camera and a line sensor is incorporated in a 3-D stereograph printing equipment. Images on a negative are taken in the printing equipment, and then, the coordinates are designated on a TV monitor. Thus, the spatial parallax of each projected negative image is measured. When the variation of the parallax by the photographing location is small the, exposure pattern is so determined to form an image band having a band width and a band pattern which makes the photograph stereoscopic by combining the negatives having a large distance between the position. The displacement of a key subject on the main object of each negative is measured. The exposure …
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
- Filed June 29, 1993 and granted April 15, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2015.
- 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.