Abstract: A prism assembly including two or more prisms, at least one of which has or more surfaces that are used for total internal reflection or partial spectral reflection of incoming light, wherein at least a part of one of the surfaces used for reflection purposes is covered with an element that is spaced apart from the surface, such that a gap is defined in between the surface and the element, and wherein the gap is sealed with a seal that is applied on one of said prisms in order to prevent contaminants from entering the gap.

Abstract: An improved architecture for a projector comprising a light source in the form of a lamp with a curved reflector with a distinctive focal distance for converging the light beam of the lamp; a so called cold mirror; an integration rod; a relay optics system consisting of a plurality of lenses followed by a light valve, wherein the architecture allows for the use of light sources with different focal distances.

Abstract: An intelligent lighting module for use in a lighting or display module system which is composed of an array of lighting modules, each of the lighting modules being provided with a display board with an array of individual pixel lighting elements and with a control board capable of controlling serial input data from a video source for displaying video as well as of controlling digital communication input data from a lighting console for creating digital lighting effects, wherein the display board includes a drive buffer and an array of pulse-width modulation (PWM) drivers which are connected to the lighting elements.

Abstract: A device for coupling the light of multiple light sources (2, 3) that substantially consists of a reflectance surface (10, 11) for one or more of said light sources (2, 3) and at least one integration rod (14) having an incident surface (15), whereby the reflectance surfaces (10, 11) are positioned in light bundles (12) emitted by the light sources (2, 3) between said light sources (2, 3) and said integration rod (14); whereby the spot of each light source (2, 3) at its focal point has a surface that is smaller than the surface of said incident surface (15); and whereby said light bundles (12) enter the integration rod (14) at different parts of its incident surface (15).

Abstract: A prism assembly for use in optical devices, which includes a total internal reflection (TIR) assembly for redirecting an incoming lightbeam, a color prism assembly for splitting the incoming lightbeam into spectral bands, and at least one reflection light valve for redirecting and recombining the spectral bands to form an outgoing lightbeam, wherein the total internal reflection assembly has a back surface and said color prism assembly has a frontal surface facing said back surface and being parallel therewith, and wherein said back surface forms an angle with a general plane defined by the incoming and the outgoing lightbeams, which is different from 90°.

Abstract: A method for controlling a lighting device that consists of at least a lighting source, a color sequential device and a single light valve consisting of an array of light processing elements that are controlled by bits, the method comprising the steps of emitting a light beam with said light source, filtering said light beam by said color sequential device to achieve a colored light beam and processing said colored light beam with a bit depth of less than 16.

Abstract: A display element consisting of a display panel on which one or more lighting modules are fastened, wherein said display element includes a mechanical mounting interface for fastening said lighting module to said display panel.

Abstract: A control system for lighting and video devices, wherein said control system includes at least one video device; at least one lighting device; and a software protocol, capable of communicating three different protocols, such as a digital video/data protocol, a common lighting protocol and a data protocol to the video and lighting devices.

Abstract: A pixel module for use in a large-area display has a cluster of sequentially interconnected similar pixel modules that are driven by a central controller. The module includes pixel elements that have a serial video data bus input, and command input lines that are electrically connected to inputs of a latch. The latch has parallel inputs and outputs which are clocked with a data dock input. Also included are a current driver device for driving the pixels, a first inverter for driving the data clock input, an address input connected to a second inverter, an EEPROM connected to the input port, and a power supply.

Abstract: A method for displaying images on a display device. The display device includes a general processing unit, a display having several display units and an individual processing unit per display unit. In order to display the images, data concerning the image to be displayed are transmitted from the general processing unit to the individual processing units in the form of a data stream, in that there is a control communication between the general processing unit and each of the individual processing units in the form of control signals. The data from the data stream are collected at every individual processing unit as a function of the control signals transmitted to the individual processing units.

Abstract: A display pixel module for use in a configurable large-screen display application, with an array of pixels (122) mounted at the front (200) of the module (120) and provided with input and output connectors (206–207), characterized in that at least some of the side walls (202) and of the upper and lower walls (203–204) are tapered inwardly, enclosing an angle (A) with the front (200) and in that it is provided with mounting means to fix the module on a mounting surface of a display.

Abstract: An improved adjustable convergence device for adjusting the position of a pixel light modulator of a projector comprising at least two such light modulators mounted on the frame of the projector, said convergence device comprising a plate assembly which is fixed on said supporting frame and which supports the light modulator to be adjusted, wherein said plate assembly is composed of at least two plate elements, respectively a plate element which is fixed to the supporting frame and a plate element on which the light modulator is fixed, whereby these plate elements are connected to each other by means of at least one elastic joint and whereby at least first self-locking adjusting means are provided for transmitting a force in an adjusting direction between these plate elements in order to adjust the relative position between said plate elements.

Abstract: Method for transmitting signals in a projection system, including the step of transmitting signals (Ra, Ga, Ba and Rb, Gb, Bb) to two or more projection elements (6 and 7), which projection elements (6 and 7) each are used for projecting a plurality of colors, at least one of these projection elements (6 and 7) having a different polarization state for at least one of the colors projected by the respective projection element (6 and 7), characterized in that the signals (Ra, Ga, Ba and Rb, Gb, Bb), supplied to said projection elements (6 and 7) for one or more colors, are swapped in order to result in a desired polarization for each of the respective colors.

Abstract: Optical projection system, comprising a projection lens, illumination optics in front of the projection lens showing a well-defined F# number, and at least one light modulator comprising a plurality of reflective elements, wherein this system shows an optical axis and wherein said illumination optics allow to project light onto the light modulator and said light modulator allows to reflect the light in a controllable manner to different directions, such that ON state light cones, in which light is projected onto the projection lens, as well as OFF state light cones can be formed, wherein said projection lens shows an F# number which is smaller than the F# number of said illumination optics, and wherein the chief ray of the incident light at the light modulator is chosen such that the direction of the chief rays of the obtained ON state light cones differ from the corresponding optical axis, so as to obtain an improved contrast.