Abstract: The present invention relates to a method to reduce charging effects affecting a degree of movement of at least one movable micro mirror in a spatial light modulator, said at least one movable micro mirror is electrostatically attractable to at least one electrode, including the action of attracting electrostatically said at least one micro mirror in a sequence of reversed electrical field between said micro mirror and said at least one electrode.

Abstract: The present invention relates to a method to detect at least one defective pixel in a spatial light modulator comprising numerous pixel elements. The spatial light modulator is imaged to a detector. A relayed image of a first chess-board pattern of pixels in said spatial light modulator is detected by said detector. A relayed image of a second chess-board pattern of pixels in said spatial light modulator is detected, which is inverted to the first chessboard pattern, by said detector. The relayed images of said first and second chessboard patterns are analyzed to detect differences between said detected images and theoretical images thereof.

Abstract: The present invention relates to a movable micro-element with reduced imprinting or hysteresis effect arranged spaced apart from a surface comprising at least one electrode. At least one restoring element is connected to said movable micro-element. An address electrode is arranged on said surface and capable to electrostatically attract said movable micro-element. Said address electrode is addressed to a first potential. Said movable micro-element is first set to a second potential defining a non addressed state and at a time period &Dgr;t before a predetermined pulsed signal is emitted said movable micro-element is switched from said second potential to a third potential defining an addressed state. Said movable micro-element is kept in said addressed state for a time period of &Dgr;t+&Dgr;t′. The invention also relates to a Spatial Light Modulator (SLM), an apparatus for patterning a workpiece and a method of reducing an imprinting or hysteresis effect of a movable micro-element.

Abstract: The present invention includes a method to use a phase modulating micromirror array to create an intensity only image that has high image fidelity, good stability through focus and good x-y symmetry. The method uses pixels consisting of at least one tilting mirror element and adjacent pixels tilt in different ways, but they are laid-out in a pattern that creates effective averaging between pixels with different tilt. The pattern is such that even if a single pixel creates a reflecting or scattering pattern that is asymmetric relative to the specular direction every neighborhood consists of pixels that together create symmetry. The invention allows the use of single-mirror pixels instead of multi-element pixels, thereby making manufacturing and design easier and also makes a smaller pixel size possible. Particular aspects of the present invention are described in the claims, specification and drawings.

Abstract: The present invention relates to an apparatus and method for patterning a work piece arranged at an image plane and sensitive to electromagnetic radiation. Said apparatus comprising a source for emitting electromagnetic radiation directed onto a selected object plane, a computer-controlled reticle comprising a plurality of object pixels, adapted to receive said electromagnetic radiation at said selected object plane and being capable of relaying said electromagnetic radiation toward said work piece arranged at said image plane, an optical projection system comprising a Fourier filter adapted to filter said relayed radiation in a Fourier space and a first lens arrangement adapted to create essentially parallel central axis of cones of radiation onto said image plane, where every cone of radiation in a specific image pixel in said image plane corresponds to a specific object pixel in said computer-controlled reticle.

Abstract: There is disclosed a method for preparing an alcohol-free wine product. A completely fermented wine is evaporated to produce a dealcholized wine concentrate and a vapor condensate containing alcohol and aromatic substances. The condensate is separated into a fraction comprising alcohol and aromatic substances. The aromatic substances are mixed with dealcoholized wine concentrate, fruit juice concentrate, fruit juice or water to produce an alcohol-free wine product.