Patent Yard Sign in
Expired Canadian patentCanada

Display means for directing an image along an angularly movable axis

CA 1266177 C · Owner: Secka, Jan · Inventors: Secka, Jan

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A display means is provided for directing an image along an angularly movable axis. The display means includes a display surface arranged in a plane for displaying an image and light, source means for emitting light along an optical path comprising the optical axis for illuminating the display surface. Image movement means are provided for moving the display surface so as to swing the angularly movable axis about a rotational axis. Aperture means are provided for exposing adjacent portions of the display surface along lines of sight which for each position of, the movable axis correspond with respective adjacent portions. The aperture means include optical bundling means which …

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

  • Granted February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 9, 1986
GrantedFebruary 27, 1990
Term endedFebruary 27, 2007
Patent numberCA 1266177 C
Classification (IPC)G04B19/00 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedJuly 9, 1986Patent grantedFeb 27, 1990Term endedFeb 27, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.