Abstract: A display system comprises illumination means for providing a light beam; at least one color channel, each color channel being adapted for providing at least part of the light beam to a spatial light modulator panel comprising at least a first and a second zone; the spatial light modulator panel being for selectively modulating an impinging beam of light to form an image light beam. The display system further comprises splitting means for splitting the at least part of the light beam so that a split light beam is provided on the spatial light modulator panel, the split light beam comprising at least a first and a second sub-beam, and driving means for driving the first and second sub-beams such that the first sub-beam scrolls over the first zone and the second sub-beam scrolls over the second zone. A corresponding method to the display system is provided.

Abstract: In one aspect, the present invention relates to a stereoscopic projection system including a projection device with at least one filter which filters a parameter of the light in a color selective manner. The at least one filter which filters a parameter of the light in a color selective manner has a spectral characteristic for transmitting light in a first wavelength band or set of wavelength bands and for reflecting light in a second wavelength band or set of wavelength bands. The projection device includes a device, such as e.g. a rotating wheel or a sliding filter, for fast synchronized switching between light in different wavelength bands or sets of wavelength bands.

Abstract: An imaging system (100) for displaying color images is described. The imaging system (100) comprises an illumination source (102) for generating an illumination beam, an illumination splitting means (106) typically for generating different primary color illumination beams and a plurality of image modulators (104a, 104b, 104c). The illumination splitting means (106) comprises a dynamic selecting means (108) adapted for, for a single color image to be imaged, subsequently generating different sub-sets of primary color sub-beams from said illumination beam and directing these sub-sets of primary color sub-beams to a static selecting means (110).

Abstract: A system and method for reducing speckle and smearing phenomena caused by a coherent light source. The light beam from the coherent light source is preferably refracted by a rotating refractive element. The refracted beam is focused and projected through a light valve by a plurality of optical components. The rotation of the refractive element causes the beam to scroll across the surface of a light receiving element, which reduces the smearing effect. The rotation of the refractive element also causes the propagation path of the beam to vary, causing rays of the light beam to undergo relative phase shift, varying the interference pattern on the light receiving element, resulting in a reduction in the appearance of the speckle phenomenon.

Abstract: Embodiments of the present invention are directed to a system and method for reducing speckle phenomenon caused by a coherent light source. Particular embodiments of the present invention are directed to a system and method for temporally varying the interference pattern generated by a coherent light source to homogenize the speckle pattern so that the speckle phenomenon is less observable. In accordance with an exemplary embodiment, an oscillating refractive element may be disposed within an optical system to create a temporally variable phase shift in the lights rays emanating from a coherent light source to eliminate static interference patterns on a light receiving element, reducing the speckle phenomenon.

Abstract: A display system in accordance with embodiments of the present invention comprises illumination means (108) for providing a light beam; at least one colour channel (R, G, B), each colour channel being adapted for providing at least part of the light beam to a spatial light modulator panel (39) comprising at least a first and a second zone; the spatial light modulator panel (39) being for selectively modulating an impinging beam of light to form an image light beam. The display system further comprises splitting means (37) for splitting the at least part of the light beam so that a split light beam is provided on the spatial light modulator panel (39), the split light beam comprising at least a first and a second sub-beam, and driving means (408) for driving the first and second sub-beams such that the first sub-beam scrolls over the first zone and the second sub-beam scrolls over the second zone. The present invention also provides a corresponding method.

Abstract: A dimming system (300) for dimming electromagnetic radiation intensity of a radiating unit, such as e.g., an optical system. The dimming system (300) is adjusted to provide a constant electromagnetic radiation intensity over the cross-section of the impinging electromagnetic radiation beam by providing at least two dimming units (320, 330) each having a spatially variable position-dependent dimming behavior, such that the degree of dimming for the whole cross-section can be chosen to be a fixed selectable dimming factor. The dimming units (320, 330) may be based on spatially variable position-dependent dimming devices based on transparent substrates having a coating with a position-dependent varying transmission/reflection coefficient, on spatially variable position-dependent diffusing devices or on polarizer devices.

Abstract: An imaging system (100) for displaying colour images is described. The imaging system (100) comprises an illumination source (102) for generating an illumination beam, an illumination splitting means (106) typically for generating different primary colour illumination beams and a plurality of image modulators (104a, 104b, 104c). The illumination splitting means (106) comprises a dynamic selecting means (108) adapted for, for a single colour image to be imaged, subsequently generating different sub-sets of primary colour sub-beams from said illumination beam and directing these sub-sets of primary colour sub-beams to a static selecting means (110).

Abstract: In one aspect, the present invention relates to a stereoscopic projection system including a projection device with at least one filter which filters a parameter of the light in a color selective manner. The at least one filter which filters a parameter of the light in a color selective manner has a spectral characteristic for transmitting light in a first wavelength band or set of wavelength bands and for reflecting light in a second wavelength band or set of wavelength bands. The projection device includes a device, such as e.g. a rotating wheel or a sliding filter, for fast synchronized switching between light in different wavelength bands or sets of wavelength bands.

Abstract: The invention describes a dimming system (300) for dimming electromagnetic radiation intensity of a radiating unit, such as e.g. an optical system. The dimming system (300) is adjusted to provide a constant electromagnetic radiation intensity over the cross-section of the impinging electromagnetic radiation beam by providing at least two dimming units (320, 330) each having a spatially variable position-dependent dimming behavior, such that the degree of dimming for the whole cross-section can be chosen to be a fixed selectable dimming factor. The dimming units (320, 330) may be based on spatially variable position-dependent dimming means based on transparent substrates comprising a coating with a position-dependent varying transmission/reflection coefficient, on spatially variable position-dependent diffusing means or on polarizer means.

Abstract: A projection system with improved contrast comprises a light source for emitting a bundle of light, a spatial light modulator for modulating light emitted from the light source, and aperture stop means arranged between the light source and the modulating device for limiting the bundle of light to be incident on the spatial light modulator. The aperture stop means comprises an optical component making use of refraction and internal reflection, such as for example a prism. Such optical component can easily be used in environments subject to high temperatures, and in environments where the optical component has to withstand large amounts of infrared and ultraviolet radiation.