SIDE-LIGHT DISPLAY ILLUMINATOR
0 Assignments
0 Petitions
Accused Products
Abstract
A light guide for illuminating a display screen, including a vertical cone-shaped entrance surface including an aperture for admitting light beams emitted by an LED, a folding mirror for reflecting the admitted light beams at an angle of approximately 90°, and for horizontally collimating the admitted light beams, a horizontal guide for guiding the reflected light beams to an exit surface, and an exit surface positioned above a perimeter of a display screen for directing the guided light towards a portion of the display screen, the exit surface being tilted vertically from the horizontal at a slight angle to direct the guided light beams towards the display, and being shaped horizontally as a concave lens to spread the guided light beams horizontally over an angular expanse of the display screen.
6 Citations
15 Claims
-
1-7. -7. (canceled)
-
8. A light transmission module for illuminating a display screen, comprising:
-
a cone-shaped entrance surface comprising an aperture for admitting visible light beams emitted by a light source; a light guide, coupled with said cone-shaped entrance, for guiding the admitted light beams to an exit surface; and the exit surface, coupled with said light guide and positioned above a perimeter of a display screen, for directing the guided light beams towards a portion of the display screen, the exit surface being tilted downward from the light guide at a slight angle, to direct the guided light beams towards the display and to illuminate a displayed image, and being shaped horizontally as a concave lens to spread the guided light beams horizontally over an angular expanse of the display screen. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
Specification