Brightness measuring device for a camera and related control method
CA 2127076 A1 · Owner: Samsung Aerospace Industries, Ltd. · Inventors: Seo, Soon-Gil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A brightness measuring device for a camera including a device for activating the brightness measuring device. The bright measuring device includes a device for accumulating electrical energy representing the level of a detected ambient brightness of an object, a device for measuring time between when the activating device activates the brightness measuring device and when the accumulating device accumulates electrical energy to a reference level, and a device for determining a proper exposure value based on measured time.
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, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2016.
- 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.