| US 7,600,893 B2 | ||
| Display apparatus, method and light source | ||
| Valerio Laino, Zurich (Switzerland); Lorenzo Occhi, Pfaffikon (Switzerland); and Christian Velez, Richterswil (Switzerland) | ||
| Assigned to Exalos AG, Schlieren (Switzerland) | ||
| Filed on May 01, 2007, as Appl. No. 11/742,710. | ||
| Prior Publication US 2008/0272379 A1, Nov. 06, 2008 | ||
| Int. Cl. F21V 1/00 (2006.01) | ||
| U.S. Cl. 362—235 [362/293] | 15 Claims |
| 1. A method of displaying an image, the method comprising the steps of:
providing a semiconductor heterostructure with a waveguide;
causing the semiconductor heterostructure to emit visible light and to amplify said visible light by stimulated emission,
thereby creating a primary light beam in the waveguide;
causing the light beam to be radiated away from the semiconductor heterostructure without any substantial light beam portions
being fed back to the semiconductor heterostructure;
modulating the light beam to yield a pre-image;
imaging the pre-image onto a full area of the image; and
wherein a plurality of pre-images is created simultaneously and wherein the pre-images are imaged onto the full area of the
image thereby creating the image.
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