Abstract: Assay devices, systems, methods, and kits useful for detection of analytes in a bodily fluid sample, such as saliva, are disclosed herein. Assay devices may include a fluid sample collector and an assessment unit to which the fluid sample collector couples. The fluid sample collector may include a cap with a plunger and absorbent member that collects a bodily fluid sample. Insertion of the plunger into the assessment unit during coupling provides pressure-driven fluid flow through a filter rapidly delivering bodily fluid filtrate to one or more test panels which provide the assay result. In embodiments, an on-board light source enables a user to readily detect changes in a test panel indicative of the presence of an analyte thus providing an opportunity for obtaining rapid results with improved confidence.

Abstract: A method and system for mastering and distributing enhanced color space content for different display devices (target color space) having display capabilities beyond that of CRT color space. The content creator(s) establishes base or reference color space and enhanced color space data for each target color space. The enhanced color space data is stored as metadata and transmitted over an enhanced color channel separately from the base/reference color space. Both the base/reference data and metadata are encoded before transmission and decoded on the consumer side either by a separate decoder or a display device having an integrated decoder. In other aspects of the invention, auxiliary data relating to the target color space, such as, for example, brightness, luminance, contrast and other display settings can be transmitted over the enhanced color channel and decoded to control the target color space settings (i.e., display settings).

Abstract: The disclosed embodiments relate to a system and method for optical calibration of a picture modulator. More specifically, there is provided a video unit (10) comprising a modulator (18) configured to modulate a projection lens assembly (16) between a first position and a second position, a photodiode assembly (22) configured to produce a first voltage corresponding to a first pixel pattern generated when the projection lens assembly (16) is in the first position and to produce a second voltage corresponding to a second pixel pattern when the projection lens assembly (16) is the second position, and a video control system (26) configured to adjust the location of the second position based on the first and second voltages.

Abstract: The invention concerns a display apparatus with an imager illuminated by an illumination system and with an imaging system projecting an image on a viewing screen, wherein the brightness of the image on the imager has a variation over a given direction, and wherein the illumination system has light controlling elements for controlling the light distribution over the given direction.

Abstract: The invention relates to a method of illuminating an imager for projecting images, implementing light-emitting diodes of different colours, the diodes being designed to provide a beam illuminating the imager. According to the invention, for a set of at least one image, the method comprises: a step for receiving each image of the set; a step for determining a colour base dependent on the set of at least one image, called a secondary colour base; and a step for dynamically controlling the diodes according to said secondary colour base. The invention also relates to a system implementing the method and a projector comprising such a system.

Abstract: The disclosed embodiments relate to a system and method for generating images. There is provided a method comprising directing light through a projecting lens (28) at a first pixel position (60a) on a screen (32), and shifting the projecting lens (28) such that the light is directed on at a second pixel position (66) on the screen (32), wherein the second pixel position (66) is diagonally offset from the first pixel position (60a).

Abstract: The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) comprising a first component (30) configured to create a first beam of light with a first polarity, a second component (40) configured to create a second beam of light with a second polarity subsequent to the creation of the first beam of light, and a third component (42) configured to allow the first beam of light pass through it without a change of polarity and to change the polarity of the second beam of light to the first polarity.

Abstract: The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) may comprise a plurality of light emitting diodes (40a, 40b, and 40c) disposed in an annular formation (41) and configured to produce light (44), a reflector configured to reflect the produced light from at least one of the plurality of light emitting diodes (40a, 40b, and 40c), and a plurality of optical components disposed in an annular formation, wherein each of the optical components corresponds to one of the light emitting diodes (40a, 40b, and 40c), wherein each of the optical components is configured to focus the produced light at the reflector.

Abstract: A light projection system projects an image comprising a matrix of light pixels having modulated luminance. The projection system includes a first imager configured to modulate a light band on a pixel-by-pixel basis proportional to gray scale values provided for each pixel of the image to provide a first output matrix. A second imager is positioned and configured to receive the first output matrix of modulated pixels of light and modulate the individual modulated pixels of light from said first imager on a pixel-by-pixel basis proportional to a second gray scale value provided for each pixel of the image.

Abstract: A two-stage light projection system is provided for projecting an image comprising a matrix of light pixels having modulated luminance. A first imager is configured to modulate a light band on a pixel-by-pixel basis proportional to gray scale values provided for each pixel of the image to provide a first output matrix. A second imager is positioned and configured to receive the first output matrix and modulate the individual modulated pixels of light from the first imager on a pixel-by-pixel basis proportional to a second gray scale value provided for each pixel. A relay lens system having a single-gauss lens set and a mirror positioned at the system stop focuses the modulated light output from the first imager on a pixel-by-pixel basis onto the corresponding pixels of the second imager.

Abstract: The invention relates to a light valve system that enhances the contrast ratio for light and dark video images and reduces contouring artifacts. The light valve system comprises a color selection device configured to temporally attenuate component color bands of light to correspond with a video input signal. A first polarizing beam splitter configured to polarize the component color bands into oppositely polarized components, and a microdisplay configured to receive at least one of the oppositely polarized components for forming a projected light matrix.

Abstract: A stereoscopic projection system is provided having two channels, each having two LCOS imagers that modulate light on a pixel-by pixel basis. A first polarizing beam splitter is configured to direct light of a first polarization onto a first channel first stage LCOS imager and direct light of a second polarization, opposite the first polarization, onto a second channel first stage LCOS imager. A relay lens system directs the output of the first stage imagers into a second polarizing beam splitter. The second polarizing beam splitter is configured to direct light of the second polarization onto the first channel second stage LCOS imager and direct light of the first polarization onto the second channel second stage LCOS imager.

Abstract: A pivotally adjustable shield includes a first member having substantially planar front and rear surfaces and an edge portion integral therewith. The shield further includes a second member having substantially planar front and rear surfaces and an edge portion engageable with the edge portion of the first member. An elongated pin is positioned through a plurality of apertures of the first and second members. An arm brace is connected to the first member and extends rearwardly therefrom and a hand bar is connected to the second member and extends rearwardly therefrom. A Velcro patch or clip is affixed to the second member and a firearm holster is connectable thereto.

Abstract: A liquid crystal display projection system, comprising: a source of a repetitive three color sequence of light; first and second imagers responsive to the same drive signal; at least a first polarizing beam splitter for separating said repetitive three-color sequence of light into a P polarized three color sequence of light and an S polarized three color sequence of light, said S polarized three color sequence of light illuminating said first imager and said P polarized three color sequence of light illuminating said second imager; a first filter for removing P polarized light directed to said first imager; a second filter for removing P polarized light reflected from said second imager, and, said at least first polarizing beam splitter combining said light reflected from said first imager and said light filtered by said second filter as an output.

Abstract: A liquid crystal display projection system for pictures that can be viewed stereoscopically, comprising: a source of a repetitive three color sequence of light; first and second imagers responsive to respective drive signals representative of the same picture from different angles of view; at least a first polarizing beam splitter for separating said repetitive three-color sequence of light into a P polarized three color sequence of light and an S polarized three color sequence of light, said S polarized three color sequence of light illuminating said first imager and said P polarized three color sequence of light illuminating said second imager; a first filter for removing P polarized light directed to said first imager; and, a second filter for removing P polarized light reflected from said second imager, wherein said light reflected from said first imager and said light filtered by said second filter form a stereoscopic image when viewed through respective P and S polarizing lenses.

Abstract: The invention concerns a display apparatus with an imager illuminated by an illumination system and with an imaging system projecting an image on a viewing screen, wherein the brightness of the image on the imager has a variation over a given direction, and wherein the illumination system has means for controlling the light distribution over the given direction.

Abstract: A method for recovering polarization comprises the steps of: guiding light having first and second polarizations in a forward direction along a light path; passing the guided light having the first polarization out of the path; reflecting the light having the second polarization backwardly and forwardly along the light path; transforming the reflected light during the reflecting step to have the first polarization; and, passing the light transformed to the first polarization out of the path, enabling more of the light having the first polarization to be passed out of the path. The method can be implemented with a light integrator, a reflecting polarizer, at least one reflective surface that further reflects the reflected light back toward the reflecting polarizer and a quarter wave plate positioned in the light path. The method and apparatus can be used in an illumination system for a liquid crystal display imager.