Abstract: A method to calibrate measurements of a test analyte in a test sample including measuring at least one test-light level responsive to reactions of at least one reagent group and at least one reactive test analyte in the test sample and measuring at least one control-light level responsive to reactions of at least one reagent group and at least one control analyte in a control sample. Each control analyte is a known amount of at least one reactive test analyte. The method further includes determining a presence of the reactive test analyte in the test sample based on the measured test-light levels and control-light levels. The reagent group and the reactive test analyte react by attaching to each other.

Abstract: A test system includes an optical medium, a binding agent capable of capturing a target complex, and a light detector. The optical medium provides a light path, and the binding agent is positioned to hold the target complex in an evanescent field created by propagation of light along the light path. The complex interacts with the evanescent field and emits light that the detector positioned to detect. The optical medium and the detector can be included in an optical integrated circuit where detected light passes through the optical medium transverse to the direction of the light path.

Abstract: A system and method for tracking an input device uses positional information of a display screen in frames of image data to determine the relative position of the input device with respect to the display screen.

Abstract: An optical device capable of illuminating visual light with adjusting color temperature after fabrication is disclosed. The optical device includes a solid state light emitter and a phosphor layer, which is formed over the solid state light emitter. The solid state light emitter, which can be a light emitter diode (“LED”), converts electrical energy to blue light. The phosphor layer subsequently converts first light with a first wavelength to second light with a second wavelength. In one example, the first light is blue light while the second light is white light. A portion of the phosphor layer is adjusted after the phosphor layer is formed for adjusting color of the white light in accordance with color quality of the light detected by a light detector.

Abstract: An optical device capable of illuminating visual light with adjusting color temperature after fabrication is disclosed. The optical device includes a solid state light emitter and a phosphor layer, which is formed over the solid state light emitter. The solid state light emitter, which can be a light emitter diode (“LED”), converts electrical energy to blue light. The phosphor layer subsequently converts first light with a first wavelength to second light with a second wavelength. In one example, the first light is blue light while the second light is white light. A portion of the phosphor layer is adjusted after the phosphor layer is formed for adjusting color of the white light in accordance with color quality of the light detected by a light detector.

Abstract: Multiple motion sensor devices are included in an imaging apparatus. One or more of the motion sensor devices captures images and at least a portion of the sensor images are then processed to determine one or more motion vectors for the processed sensor images. At least one motion vector representing an amount of motion of the imager during image capture is generated when a predetermined portion of the motion vectors match.

Abstract: A detection system. The detection system includes a substrate, a laser, and a sensor array. The substrate includes a first surface, a second surface conceptually divided into multiple areas, and a third surface. The laser is configured to emit electromagnetic radiation into the substrate and incident subsequently onto second surface areas. The sensor array is configured to capture electromagnetic radiation reflected from the second surface. If a first dielectric, having first dielectric constant, is in contact with some areas, electromagnetic radiation incident thereon experiences total internal reflection and if a second dielectric having second dielectric constant is in contact with other areas, some of the electromagnetic radiation incident thereon is reflected back into the substrate by the second dielectric.

Abstract: An optical device capable of illuminating visual light with adjusting color temperature after fabrication is disclosed. The optical device includes a solid state light emitter and a phosphor layer, which is formed over the solid state light emitter. The solid state light emitter, which can be a light emitter diode (“LED”), converts electrical energy to blue light. The phosphor layer subsequently converts first light with a first wavelength to second light with a second wavelength. In one example, the first light is blue light while the second light is white light. A portion of the phosphor layer is adjusted after the phosphor layer is formed for adjusting color of the white light in accordance with color quality of the light detected by a light detector.

Abstract: Apparatus and methods for wavelength-dependent detection are provided. A detector includes a hybrid filter having unpatterned and patterned filter layers and at least one light-detecting sensor that detects light in first and second wavelength bands from the patterned filter layer of the hybrid filter. The unpatterned filter layer passes light in two nonoverlapping wavelength bands relative to light in wavelength bands between or among the nonoverlapping wavelength bands. The patterned filter layer includes first and second regions configured respectively to pass light in the first and second wavelength bands of the nonoverlapping wavelength bands passed by the unpatterned filter layer.

Abstract: Light beam focusing components direct light from the top surface of a touch screen display to one or more imagers. The imager or imagers capture one or more images of the top surface of the touch screen display. A processing unit analyzes the image or images to determine the position of an input device on or near the top surface of the touch screen display.

Abstract: A device and method for producing an enhanced color image of a scene of interest captures a grayscale image of the scene of interest using a flash of infrared light and a color image of the scene of interest without using any flash of infrared light. The grayscale information from the grayscale image and the visible color information from the color image are combined to produce the enhanced color image.

Abstract: A portable device includes a transparent surface; a microlens array having lenslets, each lenslet forming a corresponding image of an object using light received through the transparent surface; a light sensor having pixels, each pixel corresponding uniquely to one of the plurality of lenslets, to detect the formed images of the object; and a controller to use the detected images to determine a motion of the object relative to the transparent surface, and to output the detected motion to a display for use in navigating a cursor and/or a menu on the display according to the determined motion. The portable device can be used in a telephone, personal digital assistant, and/or other handheld devices which control navigation on a display included in the device or external to the device.

Abstract: In one embodiment, apparatus is provided with a display panel, a wavelength converting material, and a light source. The display panel is provided with an interface to receive control signals defining one or more primary images that are projected from the display panel. The wavelength converting material absorbs light of a first wavelength and emits light of a second wavelength. The wavelength converting material defines a secondary image that is projected from the display panel when the wavelength converting material is illuminated by the light of the first wavelength. The light source causes the wavelength converting material to be illuminated by the light of the first wavelength.

Abstract: An electronic flash, imaging device and method for producing flashes of light uses a diffractive optical element to produce a flash of light having a rectangular radiation pattern. The diffractive optical element is configured to diffract light emitted from a light source such that the radiation pattern of the light emitted from the diffractive optical element is rectangular to produce the rectangular flash of light.

Abstract: A camera flash is disclosed for producing a warm light having a desired color temperature. In one embodiment, the flash has a xenon flash component producing a light with a spectrum having a color temperature at a higher Kelvin rating than the warm light, and a light emitting diode flash component producing a light with a spectrum having a color temperature at a lower Kelvin rating than the warm light. The color temperature of the light of the xenon flash component and the color temperature of the light of the light emitting diode flash component together produce the warm light having the desired color temperature.

Abstract: Apparatus and methods for wavelength-dependent detection are provided. A detector includes a hybrid filter having unpatterned and patterned filter layers and at least one light-detecting sensor that detects light in first and second wavelength bands from the patterned filter layer of the hybrid filter. The unpatterned filter layer passes light in two nonoverlapping wavelength bands relative to light in wavelength bands between or among the nonoverlapping wavelength bands. The patterned filter layer includes first and second regions configured respectively to pass light in the first and second wavelength bands of the nonoverlapping wavelength bands passed by the unpatterned filter layer.

Abstract: A system and method for tracking an input device uses positional information of a display screen in frames of image data to determine the relative position of the input device with respect to the display screen.

Abstract: A test system includes an optical medium, a binding agent capable of capturing a target complex, and a light detector. The optical medium provides a light path, and the binding agent is positioned to hold the target complex in an evanescent field created by propagation of light along the light path. The complex interacts with the evanescent field and emits light that the detector positioned to detect. The optical medium and the detector can be included in an optical integrated circuit where detected light passes through the optical medium transverse to the direction of the light path.

Abstract: An imaging device and method for producing a flash of light utilizes pulsing of one or more color lights, e.g., red, green and blue lights, emitted from light sources to produce the flash of light. The light sources may include light emitting diode dies configured to generate different color lights.

Abstract: Apparatus and methods for wavelength-dependent detection are provided. A detector includes a hybrid filter having unpatterned and patterned filter layers and at least one light-detecting sensor that detects light in first and second wavelength bands from the patterned filter layer of the hybrid filter. The unpatterned filter layer passes light in two nonoverlapping wavelength bands relative to light in wavelength bands between or among the nonoverlapping wavelength bands. The patterned filter layer includes first and second regions configured respectively to pass light in the first and second wavelength bands of the nonoverlapping wavelength bands passed by the unpatterned filter layer.