摘要:
A light valve meant to be used in a lighting device, comprising an array of light processing elements that are arranged in an outline substantially corresponding to the overall contour of an image to be built.
摘要:
A light projection device at least comprising a light source and a light valve consisting of an array of light processing elements, wherein a lens unit is provided in between the light source and the concerned light valve.
摘要:
Digital video projection device comprising a light source (3) to produce an image building light beam (7), one or more lenses (4), a light valve (5) and a colour wheel (6), characterized in that means are provided for altering the relative position of the colour wheel (6) in view of the path of said light beam (7), between at least a first position wherein the colour wheel (6) interferes with the image building light beam (7) and a second position wherein it does not interfere with said light beam (7), such that the device can be switched between two operation modes, in particular a video mode wherein the colour wheel (6) is positioned in the path of said light beam (7) and a light mode, wherein the colour wheel is positioned in the second position and does not interfere with said light beam (7).
摘要:
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.
摘要:
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.
摘要:
An improved single light valve projection device comprising a metal halide lamp which driven by alternating current (AC); a relay-optic, consisting of an optical assembly; a single light valve element; a rotating color wheel which is positioned in between said metal halide lamp and the relay-optic and which color wheel contains at least two different color filters; and means for synchronizing the rotational speed of said color wheel, with the frequency of the alternating drive current of said metal halide lamp and with the sequence of generating the single color components by the light valve element.
摘要:
A method and apparatus is described for producing high brightness, e.g. multicolor light, whereby a region of a wavelength conversion element and a light source producing excitation light are moved relative to each other so that said region is exposed to the excitation light at different times and in a progressive movement that scans across a part of the entire surface of the wavelength conversion element. The wavelength conversion element can be cooled by air or with a liquid.
摘要:
The present invention relates to a light integrating device (10) comprising a solid light integrating device (1) with a first length (L1) and with coupled in abutment thereto by an optical coupling a hollow light integrating device (2) such that the light integrating device (10) has a second length (L2) larger than the first length (L1). The difference between the second length and the first length is in the range of 5 mm to 10 mm. No obstructions such as dirt or dust can attach to the end surface of the light integrating system (10) because the end surface is formed by a virtual surface, i.e. a surface which is not physically present. The light integrating system (10) according to the present invention may be used in projection systems, in lighting systems or in illumination systems. The present invention furthermore provides a method for generating a shaped and uniform light spot.
摘要:
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.
摘要:
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°.