Laser underwater camera image enhancer
CA 2547665 C · Owner: Her Majesty In Right Of Canada As Represented By The Minister Of National Defence · Inventors: Mathieu, Pierre; Forand, Luc; Fournier, Georges
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus to obtain images of a target by an underwater video camera in a waterproof container wherein the target is illuminated by a laser beam. The shutter of the video camera is kept closed until a laser pulse has covered the distance to the target and nearly back to reduce the effect of reflection of the laser pulse by particles in the water. A holographic beam shaper in the path of the laser beam before a diverging lens is used to provide a 4 by 3 aspect ratio the same as the camera to illuminate the target.
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 April 18, 2006 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.