Abstract: A system for solid state illumination where light from at least two assisting light sources are added to a phosphor converted light beam. To provide efficient and economical operation, different amounts of the assisting light can be added at different points in time. The overall brightness and/or the color performance of the system can be enhanced.

Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.

Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. One or more beam combiners are used to combine multiple light beams to provide a combined light beam toward to a pupil of an imaging device in a projector. Solid state light sources, such as diode lasers and light-emitting diodes (LEDs), may be used as light sources at relatively low cost and low power, and with long lifetime. In one embodiment, an optical beam combiner comprises a first reflective surface, a second reflective surface, and a transparent region disposed between the first reflector surface and the second reflective surface. In another embodiment, an optical device comprising an array of optical beam combiners is provided. In a further embodiment, light sources comprising a plurality of light-emitting devices mounted on curved surfaces are utilized in conjunction with an optical beam combiner to provide illumination for a projector.

Abstract: Projection systems and apparatuses for providing high contrast projected images with an aspect ratio different from the aspect ratio of the imager or micro-display used are provided. Light integrators having an aspect ratio equal to the aspect ratio to the desired projected image or video can be inserted into the optical train of the projection system or apparatus to illuminate only an active area equal to having an aspect ratio equal to the aspect ratio of the desired projected image or be. By reducing the illuminated area of the imager, light scattered or otherwise diverted from pixels held in the “off state” in the non-active area of imager can be greatly reduced to provide darker dark levels in the frame surrounding the project image or video.

Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.

Abstract: Projection systems and apparatuses for providing high contrast projected images with an aspect ratio different from the aspect ratio of the imager or micro-display used are provided. Light integrators having an aspect ratio equal to the aspect ratio to the desired projected image or video can be inserted into the optical train of the projection system or apparatus to illuminate only an active area equal to having an aspect ratio equal to the aspect ratio of the desired projected image or be. By reducing the illuminated area of the imager, light scattered or otherwise diverted from pixels held in the “off state” in the non-active area of imager can be greatly reduced to provide darker dark levels in the frame surrounding the project image or video.