Abstract:
A color image sensor which uses a sensor array that has, as a lighting light source, 3-color light emitting elements capable of independently controlling light emitting timings respectively and at least three pixel arrays respectively constituted by a plurality of pixels, respective pixel arrays being comprising color filters having different transmitting wavelength regions from each other, and which independently controls the lighting start and lighting period of each light emitting element, whereby it is possible to prevent color misalignment in an output image signal and regulate the image signal level of each color component.
Abstract:
A light fixture converts source light from one or more solid state light emitting elements to a virtual light source output. An optical element receives and diffuses light from the solid state emitters to form a processed light for the virtual source output. The optical element forms light that is relatively uniform, for example having a substantially Lambertian distribution and/or having a maximum-to-minimum intensity ratio of 2 to 1 or less over the optical area of the virtual source. In the examples, the diffuse optical processing element comprises a cavity having at least one diffusely reflective surface, and the emitting elements supply light into the cavity at locations that result in reflection and diffusion before emission through an aperture of the cavity. The aperture or a downstream processing element appears as the virtual source of the processed light from the cavity.
Abstract:
A miniaturized fluidic spectrometer comprises a light source, a fluidic circuit having a plurality of flow channels through which an analyte flows, and a proximity detector array for detecting light from the light source transmitted through the fluidic circuit. Where the light source is broadband, a variable filter is disposed between the detector array and the fluidic circuit so that each position of the detector array is provided with a different wavelength response. The fluidic circuit is disposed in an optimized Fabry-Perot etalon. The fluidic circuit is defined in an elastomeric material and includes means for tuning the Fabry-Perot etalon by pressurization of flow channels in the elastomeric material.
Abstract:
A light fixture, using one or more solid state light emitting elements, provides an unpixelated light output. An optical element receives and diffuses light from the solid state emitters to form a processed light for output via an optical output area of the fixture. The optical element forms light that is relatively uniform, for example having a substantially Lambertian distribution and/or having a maximum-to-minimum intensity ratio of 2 to 1 or less over the optical output area. In the examples, the optical element comprises a cavity having at least one diffusely reflective surface, and the emitting elements supply light into the cavity at locations not visible through an aperture of the cavity that forms the optical output area. Hence, light from the emitting element(s) is diffusely reflected one or more times within the cavity before emission as part of the uniform light output through the aperture.
Abstract:
An interference modulator (Imod) incorporates anti-reflection coatings and/or micro-fabricated supplemental lighting sources. An efficient drive scheme is provided for matrix addressed arrays of IMods or other micromechanical devices. An improved color scheme provides greater flexibility. Electronic hardware can be field reconfigured to accommodate different display formats and/or application functions. An IMod's electromechanical behavior can be decoupled from its optical behavior. An improved actuation means is provided, some one of which may be hidden from view. An IMod or IMod array is fabricated and used in conjunction with a MEMS switch or switch array. An IMod can be used for optical switching and modulation. Some IMods incorporate 2-D and 3-D photonic structures. A variety of applications for the modulation of light are discussed. A MEMS manufacturing and packaging approach is provided based on a continuous web fed process. IMods can be used as test structures for the evaluation of residual stress in deposited materials.
Abstract:
A method for measuring the cavity length of a remote sensing interferometer by locally replicating the state of the remote sensing interferometer by way of a local interferometer. The local interferometer is produced by micro-electromechanical micro machining techniques, thus obtaining a highly accurate and reliable fiber optic sensing at a cost comparable to electronic sensing devices.
Abstract:
Spectrophotometer color measurement with a target illumination system and a reflected illumination sensing system where the target surface is variably spaced from said spectrophotometer. Color correction calibration information corresponding to color measurements for known different spacings of a test target surface from the spectrophotometer are obtained and stored. In use, the spacing of the actual target surface from the spectrophotometer is measured to provide a target spacing information signal. That signal is automatically combined with the stored color correction calibration information for the corresponding distances to provide at least partial correction of color measurement errors of the spectrophotometer for variable spacing of the target surface relative to the spectrophotometer even with low cost fixed focus optics. The spectrophotometer output can be so corrected by changing the target illumination, such as by LED pulse width changes, and/or by corrective adjustment of the measured reflectances.
Abstract:
An apparatus that directs light onto individual photodetectors in an electronic image sensor array is disclosed. In one embodiment, refractive elements are used to appropriately refract different colors of light onto matching photodetector elements for different colors. In this manner, the image sensing apparatus most efficiently directs the proper colors of light on to the proper photodetector elements.
Abstract:
An interference modulator (Imod) incorporates anti-reflection coatings and/or micro-fabricated supplemental lighting sources. An efficient drive scheme is provided for matrix addressed arrays of IMods or other micromechanical devices. An improved color scheme provides greater flexibility. Electronic hardware can be field reconfigured to accommodate different display formats and/or application functions. An IMod's electromechanical behavior can be decoupled from its optical behavior. An improved actuation means is provided, some one of which may be hidden from view. An IMod or IMod array is fabricated and used in conjunction with a MEMS switch or switch array. An IMod can be used for optical switching and modulation. Some IMods incorporate 2-D and 3-D photonic structures. A variety of applications for the modulation of light are discussed. A MEMS manufacturing and packaging approach is provided based on a continuous web fed process. IMods can be used as test structures for the evaluation of residual stress in deposited materials.
Abstract:
A sensor having an input to an interferometer. The input may receive emissions from a detected fluid. The output of the interferometer may be focused on an array of light detectors. Electrical signals from the detectors may go to a processor. The output of the processor may include a spectrum of the detected fluid. Also, the identity of the fluid may be determined.