Abstract:
Techniques for rich color image processing are disclosed. The techniques include using as array of tunable optical filter elements (304) to define pixels of an image. The tunable optical filter elements are adjusted during an image dwell time to control the color filtering of the individuals pixels. Exemplary embodiments for image capture (300) and projection (700) are illustrated.
Abstract:
At least first and second narrowband beams of light (208 1 , 210 1 and 212 1 ), respectively of different wavelengths, are concurrently directed onto a modulator (220, 500) respectively at first and second angles of incidence.
Abstract:
A projection system is provided, comprising three discrete monochromatic light sources for sequentially providing monochromatic beams of blue, green and red light to a single imager, which modulates the light on a pixel-by-pixel basis to form a matrix of modulated light pixels. Each of the monochromatic light sources has a switching rate consistent with a refresh rate of the projection system for generating sequential, discrete monochromatic beams of light. The monochromatic matrices of modulated light are combined to form a full color viewable image.
Abstract:
An image projection system and method are presented to project an image on at least one of first and second projection planes. The system comprises a light source system including one or more light source assemblies operable to generate light of one or more predetermined wavelength range; a spatial light modulator (SLM) system including one or more SLM units operable to spatially modulate input light in accordance with an image to be directly projected or viewed; and two optical assemblies associated with two spatially separated light propagation channels, respectively, to direct light to, respectively, the first and second projection planes with desired image magnification. The system is configured to selectively direct the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of the two channels associated with the first and second projection planes, respectively.
Abstract:
A multi-array spatial light modulating (SLM) device and methods of fabricating such a device. The multi-array SLM device includes a number of addressable arrays of elements, and each of the addressable arrays is capable of modulating light to generate an image.
Abstract:
The invention relates to a device for generating an image for projection, the device comprising a light source, a light source drive unit, electro-optical light modulation means including color scanning means for simultaneously generating scrolling image parts of different colors, image projection means for projecting the image by using said scrolling image parts and a projection drive unit for controlling said image projection means by a control signal including the image data to be projected. In such devices, a UHP lamp is often used as a light source. Therein, a pulse on the lamp current is used to shape the electrodes in such a way that the lamp arc remains in a stable position. In order to reduce or completely avoid the generation of interference patterns, resulting from the use of such lamp current pulses, it is proposed according to the present invention to provide an interference cancellation circuit for pre-correcting said control signal, such that interferences between said light source and said light modulation means leading to visible interferences in the projected image are suppressed.
Abstract:
The invention relates to a flat display screen for displaying an image using a plurality of pixels which are arranged in a matrix-shaped manner and which are supplied with light from semiconductor light sources (12, 13, 14) via optical waveguides (4, 16), whereby the light can be modulated between the light sources (12, 13, 14) and the pixels (1) for generating an image. In order to provide such a flat display screen whose construction is versatile and variable, the invention provides that the end viewing surface of the display screen is comprised of a plurality of display modules (6) which are similar to one another. A group of pixels (1) is combined in each of said display modules. The display modules (6) are each separately connected to semiconductor light sources (12, 13, 14), said sources separately belonging to each display module (6), via flexible or partially flexible light waveguides (4, 16). In addition, a light modulator device (17) is connected in the light waveguides (4, 16) which lead to each display module (6).
Abstract:
A system and method for projecting a color image is disclosed. The system includes a light dispersing system arranged in the path of a composite light beam for separating the composite light beam into spatially separated component beams, an image display arranged in the path of the component beams for producing modulated component beams, and a beam merging system producing a second light beam by merging the modulated component beams. The method includes producing spatially separated component light beams, directing the spatially separated component light beams to the surface of an image display, modulating display cells of the image display, and producing modulated component light beams.