Laser projector with reduced speckle

摘要

The present invention provides a light source for a projector system, and method of operating the light source as well as a projector system that provides:;i. a substantially uniform brightness across the surface of an image modulator, and;ii. at each point of the surface of the image modulator a more uniform filling of the available angular space.;Embodiments of the present invention use a laser light source for use with an image modulator, the light source emitting light with multiple wavelengths for at least one primary color and a light integrator system that for each of the wavelengths is adapted to provide:;i. a substantially uniform brightness across the surface of the image modulator, and;ii. at each point of the surface of the image modulator a more uniform filling of the available angular space.

主权项

1. A light source apparatus for use with a projector having a light modulator for receiving a plurality of light beams and for projecting the light beams towards a display, comprising:
a laser light source with multiple wavelengths for at least one primary color arranged to output a laser light beam; an integrator assembly comprising:
a first integrator and a second integrator; anda first light diffusing element, positioned in between said first integrator and said second integrator, wherein the first light diffusing element is arranged to receive a laser light and forward a plurality of light beams at a range of angles, the integrator assembly being adapted such that for each of the wavelengths:
a substantially uniform brightness is achieved across the surface of an image modulator andat each point of the surface of the image modulator a substantially uniform filling of the available angular space is achieved.