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US 2003/0156330 A1Published application
System for projecting an image using narrow band light sources
AssigneeUnaxis Balzers Aktiengesellschaft
InventorsJohannes Edlinger, Claus Heine-Kempkens
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Abstract
The invention provides an image projection system including a first light source and a second light source. Light from the first light source is limited to a finite number of limited wavelength intervals. An imaging device is adapted for modulating light from the first and second light sources. A beam combiner is provided to combine light from the light sources and direct the combined light to the imaging device. Modulated light from the imaging device is directed to a lens.
Claims31
An image projection system comprising:
- a first light source, wherein light from the first light source is limited to a finite number of limited wavelength intervals;
- a second light source;
- an imaging device adapted for modulating light from the first and second light sources;
- a beam combiner to combine light from the light sources and direct the combined light to the imaging device;
- and
- a lens, wherein modulated light from the imaging device is directed to the lens.
3 more elements
A method of projecting an image comprising the steps of:
- transmitting light from first and second light sources;
- limiting light from the first light source to a finite number of limited wavelength intervals;
- combining light from the light sources;
- directing the combined light to an imaging device;
- the imaging device modulating light from the first and second light sources;
- and
- directing modulated light from the imaging device to a lens.
4 more elements
Dependencies are inferred from the claim text.