Abstract: A light source device includes: a phosphor unit that is provided with a phosphor; an excitation light source that supplies excitation light that excites the phosphor; a reducing optical system that reduces the luminous flux diameter of the excitation light; and a light condensing optical system that condenses, on the phosphor unit, excitation light for which the luminous flux diameter was reduced by the reducing optical system. The reducing optical system includes: a plurality of lenses including two lenses having positive power; and a lens-moving section that moves the lens back and forth along the direction of the optical axis. The lens is disposed on the excitation light source side, and has a lower power than the lens. The refractive index of the lens is equal to or smaller than the refractive indexes of the other lenses of the reducing optical system.

Abstract: An image display device includes a display unit that includes a plurality of display lines, an image data input unit that receives image data including data for each display line, and an image data transmission switching circuit that transmits the image data to the display unit.

Abstract: A parent device which is a liquid crystal monitor device serving as a reference for adjusting the backlight distributes, through communication, a backlight-setting value indicating luminance of a backlight to an child device which is a liquid crystal monitor device receiving adjustment of the backlight. A processing unit in the child device obtains a correction value from the backlight-setting value of the parent device received by a reception unit and a backlight-setting value input to an adjustment switch by the user. When the reception unit has received a new backlight-setting value of the parent device, the processing unit obtains the backlight-setting value of the child device from the new backlight-setting value and the correction value and instructs a backlight control circuit to light a backlight based on a lighting period corresponding to the obtained backlight-setting value.

Abstract: A cooling structure includes a phosphor unit, air-blowing systems that cause cooling air to flow, and a duct structure. The phosphor unit includes a substrate and a phosphor that is formed on the substrate and that emits fluorescent light when irradiated with excitation light. The duct structure guides the cooling air blown from the air-blowing systems to the phosphor unit.

Abstract: A correction coefficient calculation unit includes: a reference image output unit that generates a reference image; a profile receiving unit that receives image information and printing information, the image information indicating a color characteristic related to an image to be displayed on a display unit, the printing information indicating a color characteristic related to a printing device; and a reference image division unit that creates printing characteristic data that associates the reference image with the reference image that has undergone color conversion based on the printing information and the image information.

Abstract: A method of simulating how output video from a video instrument that presents video appears under a given viewing environment includes: inputting an environmental illuminance in a viewing environment in which output video is viewed; inputting a set condition with regard to the video instrument, the set condition including at least optical output; and calculating and outputting, by using the environmental illuminance and the set condition, a video contrast based on a ratio between an illuminance of the output video and the environmental illuminance at a video formation plane on which the output video is formed.

Abstract: An identifier control device includes: a cumulative transmission and reception initiation control unit that instructs a plurality of controlled devices, via a network, to initiate cumulative transmission and reception; a distance determination command transmission unit that transmits to each of the plurality of controlled devices via the network a distance determination command; a distance recognition unit that determines the distances on the network with respect to the respective plurality of controlled devices, based on response signals transmitted by the respective plurality of controlled devices after the accumulation time has elapsed from when each of the plurality of controlled devices receives the distance determination command; and an identifier control unit that sets to each of the plurality of controlled devices, via the network, an identifier for each of the plurality of controlled devices determined based on the determined distances on the network.

Abstract: A light source device includes: a phosphor rotating body on which a phosphor that is formed on a surface and that is used in a rotating state with an axis of rotation that is perpendicular to the surface; a first excitation light source that generates first fluorescent light by irradiating first excitation light upon a first position that is separated from the center of rotation on the surface; a detection light generation unit that irradiates detection light upon a second position that is separated from the center of rotation on the surface and that differs from the first position; an optical detection unit that supplies a detection signal corresponding to emission light emitted from the phosphor rotating body in response to the detection light; and a control unit that receives the detection signal and controls the intensity of the first excitation light on the basis of the detection signal.

Abstract: A display device includes: a display panel that displays an input video signal; and a video recording and reproduction unit that records and reproduces a video picture to be displayed on the display panel. The video recording and reproduction unit includes an image-size setting unit that reduces a size of a screen of the input video signal according to a multi-display configuration.

Abstract: A display device includes a display which is configured to display an image; a backlight which is turned on in the rear face of the display; a storage unit which is configured to store luminance characteristics at the center of the display; an optical sensor which is configured to measure luminance in the periphery of the display; and a signal processing unit which is configured to correct the measured value measured with the optical sensor in the periphery of the display based on luminance characteristics stored in the storage unit, thus controlling the luminance of the display based on the corrected measured value.

Abstract: Display apparatuses which constitute a multi-display system each display a partial picture corresponding to a picture position set in the display apparatus. When each display apparatus is instructed to change the picture position and is notified about a picture position to be changed via operation input means, the display apparatus exchanges pieces of picture position information with a display apparatus displaying a partial picture corresponding to the picture position to be changed and swaps the picture positions of the display apparatuses.

Abstract: A gradation correction map generating unit generates a gradation correction map based on a brightness unevenness map, a rotation unevenness map, and a second gamma characteristic. The brightness unevenness map indicates a correspondence relation between a plurality of positions in a screen of a display unit, and uncorrected brightness values, the uncorrected brightness values being brightness values at time of performing no correction when the display unit is installed at a predetermined angle. The rotation unevenness map indicates a correspondence relation between the plurality of positions or other plurality of positions, and differences in brightness values corresponding to a rotation angle of the display unit. The second gamma characteristic indicates a correspondence relation between a brightness value at a specific position in the screen, and a gradation of an image signal.

Abstract: A color conversion data generation device includes: an acquisition unit that acquires end point correction values for correcting a color of at least one end point of a RGB color space; an end point color correction value generation unit that corrects the color of the at least one end point using the acquired end point correction values, to generate end point color correction values; a normalization unit that normalizes an intermediate color in the RGB color space using a normalization coefficient; an interpolation unit that interpolates the normalized intermediate color using the generated end point color correction values by means of same interpolation characteristic as that of a 3D LUT circuit, to generate temporary correction values; and an inverse normalization unit that inverse-normalizes the generated temporary correction values using an inverse normalization coefficient defined according to the normalization coefficient, to generate correction values of the intermediate color.

Abstract: A display apparatus includes a sight line detection sensor that detects a sight line of a user; a distance measurement sensor that measures a distance between a display panel and a user; and a control unit that determines a control region set in separate light emitting parts arranged on the display panel, where an amount of light emission is controlled in the control region, based on the sight line detected by the sight line detection sensor and the distance measured by the distance measurement sensor. Typically, the control unit determines the control region in a manner such that the longer the distance measured by the distance measurement sensor, the smaller the control region, and the shorter the distance measured by the distance measurement sensor, the larger the control region.

Abstract: A projector includes: a plurality of image-forming units each including an image forming surface provided with a plurality of micromirrors; a plurality of reflecting units that are provided so as to respectively reflect the plurality of image beams formed by the image-forming units; a beam-combining unit that receives the plurality of image beams via the plurality of reflecting units and emits a combined image beam in which the plurality of image beams are combined such that the propagation directions coincide; and a projection unit that projects the combined image beam emitted from the beam-combining unit. At least two of the image-forming units are arranged such that the image-forming surface of each image-forming means lies in the same plane.

Abstract: A projection type display apparatus includes: a semiconductor laser element that outputs laser light based on supply of current; a digital mirror device (DMD) that modulates the light output from the semiconductor laser element and emits the modulated light; a projection lens that projects the incident light via the DMD; a drive unit that drives the semiconductor laser element and includes a current detection unit for detecting the current value of the current flowing through the semiconductor laser element; and a controller that, when the current value detected by the current detection unit becomes greater than a first threshold, controls driving of the DMD so that the light output from the DMD will not be incident on the projection lens, and when the current value detected becomes greater than a second threshold greater than the first threshold, causes the drive unit to cut off the supply of current.

Abstract: A backlight device includes a plurality of light sources that emit light of different colors from each other, a plurality of color sensors that receive mixed-color light including light emitted from the light sources to detect light emission states of the light sources, a temperature sensor that measures a temperature in a proximity of the plurality of light sources, a brightness conversion unit that separates the mixed-color light to obtain a detection value for each of the light sources by converting values indicating the detected light emission states, and a calculation unit that corrects the obtained detection value by using information indicating a relationship between the measured temperature and a correction value, the calculation unit determining drive values for the light sources based on the corrected detection value.

Abstract: A light source device capable of improve energy efficiency is provided. A light source device includes a yellow phosphor that emits yellow fluorescence excited by exciting light, a red laser light source that emits red laser light, a first light combining unit that generates first composite light by combining the emitted yellow fluorescence with the emitted red laser light, a blue laser light source that emits blue laser light, and a second light combining unit that generates second composite light by combining the combined first composite light with the emitted blue laser light.

Abstract: A projection type display apparatus includes illumination unit that emits a plurality of color lights having a predetermined polarization direction, a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively, a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights, a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction, and a correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light incident on the synthesis unit into linearly polarized light.

Abstract: The present invention realizes both a laser light source that, despite the use of a plurality of laser diodes and transmission through a modulator that allows transmission of a specific orientation of linearly polarized light, is free from the occurrence of uneven luminance or uneven color, and a projector device that uses this laser light source. The laser light source is provided with a plurality of laser diodes that are mounted on a substrate and that emit linearly polarized light in the same direction. The plurality of laser diodes are arranged such that the orientation of the emitted linearly polarized light is different for each laser diode.