Abstract: A color wheel comprised of two or more interference filters deposited on or bonded to a substrate 30 without the use of a frame or spokes. Filters 32, 34, and 36 preferably abut and are typically made from multiple layers of materials having different indices of refraction. The color wheel does not require extensive machining or balancing, and is very optically efficient because the duration of single color light periods is maximized. The color wheel does not have a frame or spokes and is therefore more aerodynamically efficient resulting in less work required to spin it and less wind noise.

Abstract: A tapered-shaped rotatable frame with at least three filter windows, with at least three filters installed on it, a lens stand which includes a supporting means to rotatably support the frame. The angle between the supporting means and the frame's surface is supplementary to the angle between the supporting means and the frontal surface of the lens.

Abstract: The invention relates to an optical computing element for use in an optical computer utilizing computing light rays having a plurality of wavelength components. The optical computing element comprises a photo-chemical hole burning element which functions as a wavelength selecting filter of the computing light rays. Therefore, the optical computer using the photo-chemical hole burning element of the invention can perform arithmetic operations by taking advantage of differences in optical wavelength. The computer can efficiently perform bulky arithmetic processing, and can also speedily perform arithmetic operations through simultaneous parallel processing for information.

Abstract: A color filter in accordance with the present invention comprises an activated film layer (2) arranged on a transparent substrate (1), said activated film layer (2) having a color pattern formed thereon by permeating a dye thereinto, and a thin metal film pattern (3) formed on a portion, of said activated film layer (2), which requires the formation of a black mask. Accordingly, the color filter integrated into various display devices such as a liquid crystal display is capable of displaying an image having a high contrast.

Abstract: An apparatus receptive of illumination light from an illumination light source for providing a color image on a projection lens includes three displays responsive to a video signal for modulating incident lights to display respective component images, a first dichroic layer for separating the illumination light into a first component light and a first mixed light of different wavelength regions to give the first component light to one of the displays, a second dichroic layer for separating the mixed light into second and third component lights of different wavelength regions to give the second and third component lights to other two of the displays respectively, a third dichroic layer for synthesizing, out of the first, second and third information lights from the displays, the first and second information light, and a fourth dichroic layer for further synthesizing the light synthesized by the third dichroic layer with the third information light.

Abstract: The color filter according to the present invention contains black matrix formed by polyimide, which contains light shielding pigments such as carbon black, triiron tetraoxide, etc. instead of the black matrix used in the past, which is formed by metal thin film such as chromium on glass substrate. Epoxy type silane coupling agent is mixed with polyimide precursor composition, and this is coated on a glass substrate and then imidized. Thus, the color filter is provided with black matrix having high bonding strength with glass substrate.

Abstract: This specification discloses an objective lens disposed forwardly of a prism block for dividing light into a plurality of color components, the objective lens having an optical filter differing in spectral transmission factor between the central area thereof and the marginal areas thereof, this filter being given the characteristic that one of the marginal areas transmits much of magenta light therethrough and the other marginal area transmits much of green light therethrough, thereby suppressing the coloring of a blurred image based on the light incidence angle dependency of the color dividing surface of the prism block.

Abstract: A filter conversion device is employed in an optical system that is operative to locate one of a plurality of color filter units in an optical path frame member and is provided to support a plurality of filter units and is arranged so as to be movable in a predetermined plane between a light sending element and a light receiving element. Mechanisms for controlling the frame member to move horizontally and vertically in the plane are also provided. Thus, the desired filter unit is located in the optical path without requiring a large space for movement.

Abstract: The expanded-range image digitizing apparatus utilizes a light-attenuating layer in concert with solid-state light detectors of limited dynamic range to provide a means for digitizing wide-dynamic-range images. The light-attenuating layer is placed in close contact with an image-containing medium. The light-attenuating layer is comprised of groups of regions replicated throughout the light-attenuating layer where each region in a group attenuates light passing through to a different degree and each group is the same in size and shape as a picture element of the image being digitized. When the image-containing medium is illuminated, the emerging light power from one of the regions of a group is of the proper magnitude to cause an associated detector to respond within its dynamic range. The emerging light power from the corresponding picture element of the image is then determined by multiplying the detected light power by the attenuation factor of the region producing the proper detector response.

Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on a transparent electrically conductive layer provided on an outermost surface of a substrate having an alignment film, and exposing the photosensitive coating film to light through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being repeated for the respective patterns of different degrees of light transmittances in sequence of difference in light transmittances to form different colored layers, respectively; and (Z) transcribing the colore

Abstract: A method for producing a color filter involves the steps of: (A) forming a photosensitive coating film on a transparent electrically conductive layer formed on a surface of a transparent substrate, and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the transparent electrically conductive layer, and electrodepositing a colored coating on the exposed transparent electrically conductive layer for forming a colored layer thereon; and (C) repeating the step (B) for the respective patterns of different degrees of light transmittances in sequence of difference in transmittances for producing different colored layers, respectively.

Abstract: A curvilinear motion type optical filter driving mechanism, comprising a lens-house, a filter holder, a motor, a driven gear, and a driving gear. The filter holder has an optical filter mounted thereon at the front and disposed in a curvilinear direction, and a rack at the back. Rotating the motor causes the drive gear to carry the optical filter, via the driven gear and the rack, to make a curvilinear motion over the lens of the lens-house.

Abstract: A filter is formed on a substrate, such as a solid state imager, by providing successively on the substrate a layer of an absorber material, a layer of a barrier material, and a layer of a photoresist material. The photoresist is patternwise exposed and developed, thereby baring regions of the barrier layer underlying selected regions of the photoresist layer. The coated substrate is reactive ion etched under a first set of etching conditions to etch away the bared regions of the barrier layer and to bare but not substantially etch the underlying regions of the absorber layer, and then reactive ion etched under a second set of etching conditions, thereby etching away the remaining regions of the photoresist layer and the bared regions of the absorber layer, so forming a filter on the substrate. To form multi-colored filters, the process may be repeated with a different dye, or additional dyes may be deposited by other processes, such as that described in U.S. Pat. No. 4,808,501.

Abstract: A filter lens device for an optical color scanner comprising a lens, at least three filters and a driving member to drive the filters to line up with scanned data and optical detectors wherein an entire document is scanned completely for each color to be reproduced. A position detecting member detects the relative positions between the filters and optical detectors, a position controlling member controlling the driving member such that the filters are moved in sequence to scan the document.

Abstract: A process of making opaque grid lines for a color filter array element comprisinga) exposing to light through a negative grid pattern a photo-hardenable element comprising a support having thereon a coating comprising a water-soluble polymer; a water-soluble dichromate salt; and up to 1 g/m.sup.2 of a black pigment, black dye or dyes providing an opaque color, or a precursor thereof;b) washing the element with a solvent to remove the unexposed areas of the element, leaving a grid line pattern of hardened polymeric substance on the element; andc) drying the element to produce open cells on the support divided by opaque lines of the hardened polymeric substance greater than 0.3 .mu.m in height above the support.In another embodiment of the invention, the above dichromate salt coating does not contain any black pigment or dye, and the grid pattern is dyed black before the drying step.

Abstract: A light source apparatus for separating a white light into light components of a plurality of colors, includes a white light source and at least two dichroic mirrors. Each mirror selects a light with a particular wavelength band from a visible light so as to transmit the light with the selected wavelength band therethrough. The mirrors reflect light with a wavelength band other than the selected wavelength band so that the transmitted wavelength bands of the mirrors are different from each other. The mirrors are arranged opposite to each other with respect to the white light source. The apparatus also includes condenser lenses which are combined with each of the dichroic mirrors. The light reflected by each of the dichroic mirrors is returned to the white light source.

Abstract: A method of forming a color filter substrate having pixels of at least two different colors by use of a negative photoresist material of the last color deposited. The negative photoresist is coated over the pixels and the exposed surface of the substrate. The back of the substrate is then exposed to a light source at a wavelength blocked by the formed pixels so that any of the negative photoresist material directly on the transparent substrate is activated by the light from the light source and remaining material is removed.

Abstract: A device for measuring the speed of the wind at medium altitude by the Doppler effect within the visible frequency range comprises a laser which emits pulses of light, a telescope which receives a scattered light and an interferometer used to measure the spectral shift of the scattered light in relation to the emitted pulse of light. The interferometer is a Fabry-Perot interferometer in which a part of one of the two mirrors of the interferometer is covered with an excess thickness of silica to form two separate filters. The spacing of the two mirrors and the excess thickness of silica are determined in such a manner that the pass bands of each one of the two filters thus constructed are centered on the flanks of the spectral distribution of the backscattered light.

Abstract: Herein is provided a color filter prepared by providing red, green and blue image elements, comprising as photosensitive resin and a pigment, and a black matrix on a transparent substrate and further providing thereon a transparent electrode layer, wherein said photosensitive resin is so formulated that it comprises a polyfunctional acrylate monomer, an organic polymer binder and a photopolymerization initiator comprising a 2-mercapto-5-substituted thiadiazole compound represented by general formulas (I) and/or general formulas (II), a phenyl ketone compound represented by general formulas (III) and 2,4,5-triphenylimidazolyl dimer composed of two lophine residues combined to each other through intermediation of a single covalent bond.A pattern having a high precision and a good surface smoothness can be obtained owing to the photosensitive resin, and a color filter having a good environmental resistance can be obtained owning to the pigment.

Abstract: A thermally-transferred color filter array element, preferably for use in a color electro-optical display device such as a color liquid crystal display device, comprising a support having thereon a polymeric dye image-receiving layer containing a thermally-transferred image comprising a repeating pattern of colorants, such as a mosaic pattern, the polymeric dye image-receiving layer having been applied to the support using screen printing.

Abstract: A thermally-transferred color filter array element comprising a transparent support having thereon a thermally-transferred image comprising a repeating pattern in a binder of colorants composed of one or more polyesters having Tg greater than about 200.degree. C. derived from one or more dibasic aromatic acids and one or more dihydroxy-phenols that contain at least one large bulky central moiety.

Abstract: A color image recording apparatus for recording a color image of an original document on a photosensitive paper using at least yellow, magenta and cyan liquid toners respectively containing yellow, magenta and cyan color materials as primary color components. At least one of the three liquid toners contains foreign color materials which are the primary color components of the rest of two liquid toners. To reproduce the color image of the original document with maximum possible fidelity, a disk-shaped rotary filter is provided for receiving imaging light separated into blue, green and red light components and changing light transmission rates passing through the filter so as to be equal to the proportion of the color material to be reproduced which is contained in the yellow, magenta and cyan liquid toners. The light transmission rates are changed each time when one of the yellow, magenta and cyan liquid toners is used.

Abstract: A color filter and manufacturing method thereof are provided which can improve the optical transmittance and diminish the dispersion phenomena due to the diffraction and reflectance of incident light. The color filter has at least two mutually different filtering characteristics respectively corresponding to the plural pixels placed in a matrix on the background substrate. The color filter includes a planarizing layer, a color filter pattern, a coloring layer and a protective layer. The method for manufacturing the color filter involves forming a planarizing layer, a color filter pattern, and a protective layer.

Abstract: The present invention is a device for generating a plurality of colors of light from a light source. The device includes a plurality of filters to separate the light at predetermined wavelengths and to recombine them at different amplitudes to generate a predetermined color hue in the visible spectrum of light.

Abstract: A color filter for use with a liquid crystal display is disclosed. The color filter has colored layers printed on a transparent substrate and first and second resin layers coated on the colored layers.