Full color solid state laser projector system
OwnerRandall J. Knizeinventor
Life of this patent
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Abstract
This invention uses various solid-state semiconductor lasers along with frequency doublers as needed to achieve the required three-color light beam wavelengths for input to available light combiners and to a state-of-the-art scanner. The scanner projects a color laser beam to a screen or other equipment. A number of alternate solid-state laser means are described, each combination providing the required light output. Use of the described solid-state lasers instead of the commonly used gas lasers results in considerable savings in required electrical power, cooling and system size.
Claims20
A full color solid-state laser projector system comprising:
- a red solid-state laser means based upon semiconductor lasers operating to produce a light beam at a proximate 610-640 nm wavelength;
- a red light modulator means;
- said red light modulator means receiving the laser light produced by said red solid-state laser means and operating to produce a red laser beam;
- a green solid-state laser means based upon semiconductor lasers operating to produce a light beam at a proximate 510-540 wavelength;
- a green light modulator means;
- said green light modulator means receiving the laser light produced by said green solid-state laser means and operating to produce a green laser beam;
- a blue solid-state laser means based upon semiconductor lasers operating to produce a light beam at a proximate 460-480 nm wavelength;
- a blue light modulator means;
- said blue light modulator means receiving the laser light produced by said blue solid-state laser means and operating to produce a blue laser beam;
- a first combiner means and a second combiner means, and a scanner means;
- said second combiner means receiving said red and green laser beams produced by said red and green modulator means, and combining said beams to produce a red/green laser beam directed at said first combiner means;
- said first combiner means receiving said blue laser beam produced by said blue modulator means, and combining said blue laser beam with said red/green laser beam to produce a combination of red, green and blue laser light which is directed at said scanner means;
- said scanner means receiving said combination laser light and operating to produce a laser beam output for a screen or other equipment.
A full color solid-state laser projector system
- comprising:
- a red solid-state laser means based upon semiconductor lasers, having a modulating voltage/current input signal and producing a red laser beam at a proximate 610-640 nm wavelength;
- a green solid-state laser means based upon semiconductor lasers, having a modulating voltage/current input signal and producing a green laser beam at a proximate 510-540 nm wavelength;
- a blue solid-state laser means based upon semiconductor lasers, having a modulating voltage/current input signal and producing a blue laser beam at a proximate 460-480 nm wavelength;
- a first combiner means and a second combiner means;
- and
- a scanner means;
- said second combiner means receiving said red and green laser beams produced by said red and green solid-state laser means, and combining said laser beams to produce a red/green laser beam directed at said first combiner means;
- said first combiner means receiving said blue laser beam produced by said blue solid-state laser means, and combining said blue laser beam with said red/green laser beam to produce a combination of red, green and blue laser light which is directed at said scanner means;
- said scanner means receiving said combination laser light and operating to produce a laser beam output for a screen or other equipment.
Dependencies are inferred from the claim text.