Apparatus for imaging exit spots of a laser array

US5818546A · kind A · utility

Assignee

• Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventors

• Hans Opower · Krailling, DE
• Uwe Becker · Stuttgart, DE
• Uwe Brauch · Heitersheim, DE

Key dates

• Filing date: Aug 7, 1995
• Grant date: Oct 6, 1998
• Expiry date: Aug 7, 2015

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N9/3129
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

In order to improve an apparatus for generating an image in an image plane that is visible, in particular, for a human eye, comprising a radiation source which generates an image via an optical projection means by building up at least one row of image spots during an image build-up cycle by illuminating individual, adjacently located image spots and periodically repeating the image build-up cycle, so that it is possible to generate images as simply and, therefore, also as inexpensively as possible, it is suggested that a row of light sources comprising a plurality of semiconductor emitters be provided for the illumination of the image spots of the row of image spots, that the optical projection means associate each exit spot for the radiation of each semiconductor emitter with at least one of the image spots and that the optical projection means simultaneously image the exit spots of all the semiconductor emitters of the row of light sources onto the image spots associated therewith.