Method and arrangement for optically representing information
AssigneeM A N Systemelektronik GmbH
InventorsBernd Brauer, Michael Schluter
Life of this patent
Estimating the term…
Abstract
A method and an arrangement for optically representing information on a transparent projection surface using several projection modules and using through-light projection. The method and arrangement are both cost effective and ensures that an observer viewing even a large display of information is provided with a bright, contrast, homogeneous image. Each projection module is formed of a light source with a divergent beam radiating through a controllable light valve and a projection surface arranged behind it. The distance between the light valve and the projection surface is chosen in such a way that the image parts projected by adjacent modules border gaplessly to each other on the projection surface.
Claims2
An arrangement for optically representing information, the arrangement comprising:
- a plurality of light sources producing a diverging light beam;
- a plurality of controllable light valve means, each of said light valve means controlling passage of said diverging light beam from a separate one of said plurality of light sources through said each light valve means to form a respective image part;
- a projection surface arranged on a side of said plurality of light valve means diametrically opposite said plurality of light sources, said projection surface being spaced from said plurality of light valve means by a chosen distance such that edges of said image parts formed by adjacent light valve means abut each other on said projection surface;
- a mask extending from each of said plurality of light sources to said projection surface.
Dependencies are inferred from the claim text.