Patent
Laser image display, and optical integrator and laser light source package used in such laser image display
Tetsuro Mizushima,Ken'ichi Kasazumi,Tatsuo Itoh,Tomoya Sugita,Kazuhisa Yamamoto,Shinichi Kadowaki +5 more
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TLDR
In this paper, a laser image display consisting of a laser light source emitting laser light, a beam deflector element for receiving laser light and deflecting its advancing direction, an optical integrator for receiving and guiding the deflected laser light to output from its outputting end face, a false surface light source element for scattering the deflection laser light.Abstract:
A laser image display comprising a laser light source emitting laser light, a beam deflector element for receiving laser light and deflecting its advancing direction, a beam deflecting element control section for controlling the degree of deflection performed by the beam deflector element, an optical integrator for receiving and guiding the deflected laser light to output from its outputting end face, a false surface light source element for scattering the deflected laser light, and a modulation element for receiving and modulating the laser light scattered by the false surface light source element.read more
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References
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Patent
Laser projection display system
TL;DR: In this article, a display apparatus, including a laser light source for emitting a light beam, a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics for shaping the expanded laser beam to provide uniform illumination of the spatial modulator.
Patent
Speckle-free display system using coherent light
TL;DR: In this paper, a speckle-free display system using coherent light is described, where the light is directed through a spinning diffusing element to illuminate a spatial light modulator.
Patent
Speckle suppressed laser projection system using RF injection
James E. Roddy,William R. Markis +1 more
TL;DR: In this article, a system and method for reducing or eliminating the speckle intensity distribution of a laser imaging system was proposed, where a radio frequency signal is injected into a semiconductor laser light source for a projection system, and optical feedback is used to induce the laser light sources to blend together on a projection surface.
Patent
Speckle suppressed laser projection system with partial beam reflection
James E. Roddy,William R. Markis +1 more
TL;DR: In this paper, a system and method for reducing or eliminating the speckle intensity distribution of a laser imaging system was proposed, where a radio frequency signal is injected into a semiconductor laser light source for a projection system (10) to create different patterns that blend together on a projection surface (19).
Patent
Two-dimensional image forming device
TL;DR: In this article, a two-dimensional image forming device doubling as a lighting device is proposed, where a rotation mechanism for rotating the light source (1) is provided so as to change its light outputting direction.