Virtual image instrument panel display
CA 2102166 A1 · Owner: Hughes Aircraft Company · Inventors: Cook, Lacy G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A virtual image instrument panel display (20) has a display source (22) and reflective elements (24 26). The, display source (22) generates a beam (28) including an image to be viewed. The reflecting elements (24 26), receive the beam and provide a virtual image of the image of the beam. The virtual image is focused on a viewing plane at a predetermined and substantial virtual distance away from the user to enable easy eye focus transition between the virtual image and distant objects. The folded nature of the optical system provides for a compact package suitable for installation in an automotive dashboard.
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 November 1, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 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.