Abstract: Provided is an excitation light synthesizing unit capable of emitting, in one direction, excitation light incident from a plurality of difference directions. The excitation light synthesizing unit includes polarization splitter film (15), first and second ¼ wavelength plates (13 and 14), and reflection member (19). Polarization splitter film (15) transmits excitation light that is P-polarized light while reflecting excitation light that is S-polarized light. First and second ¼ wavelength plates (13 and 14) are arranged on the path along which first excitation light (L1), which is directed toward polarization splitter film (15), travels. Reflection member (19) disposed between first and second ¼ wavelength plates (13 and 14). Reflection member (19) reflects second excitation light (L2) incident via polarization splitter film (15) toward polarization splitter film (15). Reflection member (19) includes hole (20) formed to pass first excitation light (L1).

Abstract: A display apparatus includes: a display panel which has a display surface; an apparatus base to which the display panel is attached; a detecting unit which has a detecting surface disposed so as to face a region to be inspected being a part of the display surface, the detecting unit detecting by means of the detecting surface, light emitted from the region to be inspected, and outputting a detection result; and a case which supports the detecting unit, and is attached to a peripheral area of the region to be inspected.

Abstract: A projector includes an illumination optical system, an image formation element that spatially modulates light from the illumination optical system, and a projection lens that projects the spatially modulated light. The illumination optical system includes a light source that emits light of a first wavelength, a fluorophore unit including a reflection region reflecting the light of the first wavelength and a fluorophore region including a fluorophore emitting fluorescent light of a wavelength that differs from the first wavelength by irradiation of the light of the first wavelength, a first optical element reflecting a first linearly polarized light and allowing a second linearly polarized light to pass through the first optical element, and a second optical element provided on a light path between the first optical element and the fluorophore unit which changes a polarized state of irradiated light.

Abstract: A projection type display device includes projection means that projects an input image, representing an object on a background and that corresponds to an input video signal, onto a projection surface on which a user writes information, and processing means that, upon receiving a photographing instruction, stops projection by the projection means and photographs the projection surface to generate a photographed image, and detects the difference between the color of the background in the input image and the color of the projection surface in the photographed image, to generate a corrected image by correcting the color of the input image or the photographed image so as to reduce the difference, and generates a recorded image by superimposing the corrected image on the remaining input image or the photographed image.

Abstract: A display device includes a display panel body that has a display surface emitting light, and a brightness sensor unit that is fixed on the display surface of the display panel body and includes a brightness sensor detecting a brightness of the light from the display surface.

Abstract: When assigning display IDs to displays which form a multi-screen system, the displays are arranged such that short distance radio communication is possible and an ID setting apparatus which can perform the short distance radio communication is employed. After each display ID is set in the ID setting apparatus, the ID setting apparatus and each of the displays are placed near each other in a contactless manner so as to transfer the display ID set in the ID setting apparatus to the display and assign the display ID to the display.

Abstract: An image display method implemented in a projector that includes first to third display elements each of which spatially modulates incident light to display an image, synthesizes the images displayed by the first to third display elements, and projects the synthesized image.

Abstract: To control a laser used as a light source according to an input image, while satisfying a safety standard, a projector includes lasers provided for each of a plurality of colors, a dichroic mirror that synthesizes laser beams emitted by the lasers, an LCOS panel that modulates synthesized light by the dichroic mirror, and a projection lens that projects the light modulated by the LCOS panel. A processor determines rate of power of the laser beams according to the image signal, determines, according to the rate of the power, an upper limit value of the power of the projected laser beam in each color to the extent that the upper limit value satisfies a safety standard, and adjusts the laser beam in each color emitted by the corresponding laser so as to prevent the projected light beam in each color from exceeding the upper limit value.

Abstract: The purpose of the present invention is to provide a device that is small in size and low noise, in which heat from a light emitting element such as an LD or an LED is efficiently dissipated. A light source device includes a first light emitting element, a base plate, and an air flow device for sending out air. The base plate, which is thermally connected to the first light emitting element, has a flat surface formed around the first light emitting element to face the emitting direction of light output from the first light emitting element. The air flow device generates a flow of air toward the flat surface of the base plate in a direction perpendicular to the flat surface.

Abstract: An electronic device information read/write mechanism includes an RF tag attached to a metal frame at the upper portion of a liquid crystal display panel packed in a packaging box. The RF tag stores the internal information concerning the liquid crystal display panel. The packaging box is partially opened to expose the RF tag to the outside, and then an external reader/writer is moved close to the RF tag, and therefore the external reader/writer reads or writes the internal information stored in the RF tag without powering on the liquid crystal display panel.

Abstract: With the purpose of controlling a light source to appropriately reduce the brightness of reflected light at the time of starting projection according to the conditions under which a projector is being used, the projector includes a solid-state light source unit that emits light, a power supply unit that supplies driving electric power to the solid-state light source unit, an image display device that modulates the light emitted from the solid-state light source unit according to an image signal and that projects the modulated light onto a projection surface, and a detection unit that detects the intensity of the ambient light of the projection surface.

Abstract: Image display devices that can eliminate image deterioration that occurs due to a pixel scanning sequence are provided. A detection section identifies a moving region contained in an image corresponding to an input image signal composed of a plurality of frames and detects a moving distance and a moving direction for and in which the moving region moves. A correction section corrects the image signal based on a detected result of the detection section and the scanning sequence in which individual pixels in the moving region are scanned. A drive section scans the plurality of pixels in the scanning sequence based on a corrected image signal that is an image signal corrected by the correction section and draws a corrected image corresponding to the corrected image signal.

Abstract: A projector has a light source, image forming units, a projection lens, a first optical system and a second optical system. The image forming units form image light by adjusting, on a per-pixel basis, the intensity of light emitted by the light source. The projection lens projects the image light formed by the image forming units to the outside. The first optical system guides light of a first wavelength emitted by the light source to the projection lens, and the second optical system guides light of a second wavelength emitted by the light source to the projection lens. The f-number of the first optical system is higher than the f-number of the second optical system.

Abstract: A light source device includes a holder for holding a lamp unit, a duct member placed over the holder, a flow path formed between the holder and the duct member, a plurality of port groups disposed in the holder, each port group including ports for connecting the inside of a reflector of the lamp unit to the flow path, and a plate member disposed in each port group and configured to selectively open/close ports included in each port group. The plurality of port groups is located around the center axis of a light-emitting tube of the lamp unit, and the plate member rotates under its own weight to open some of the ports included in the port group while closing the other ports.

Abstract: A display device includes: a display monitor; a control board which drives the display monitor; a chassis which is provided between the display monitor and the control board. The chassis includes a conductive material, and has a surface on a side of the display monitor. The display device further includes: a wiring line which is provided along the surface of the chassis; and a clamper which fixes the wiring line to the chassis. The clamper includes a clamp section pressing the wiring line, and leg portions fixed to the chassis. The chassis includes a recessed section at a position where the clamper is fixed. The recessed section is indented towards a side of the control board and accommodating the wiring line.

Abstract: A projection display device having a plurality of light sources and including a plurality of light sensors installed in association with the light sources, respectively, and a controller for controlling amounts of lights emitted from the light sources depending on corresponding output signals from the light sensors to keep constant a ratio of the amount of light emitted from the light sources. The controller controls each light sources used in control signals whose frequencies are different from each other.

Abstract: An image display apparatus has an A/D converter for sampling an analog video signal whose signal level changes at a frequency higher than the frequency of a synchronizing signal, based on a reproduced dot clock, and converting the sampled analog video signal into a digital video signal, a clock adjusting circuit for generating a clock in synchronism with the synchronizing signal, delaying the phase of the clock according to set delays, and outputting the delayed clock as the reproduced dot clock, a controller for dividing an area of an image displayed based on the converted digital video signal, into a plurality of image areas defined by display lines in a horizontal direction, and establishing different delays for the divided image areas, and a delay evaluating circuit for converting differential data between adjacent signal levels on the display lines for the respective image areas, into absolute values and accumulatively adding the absolute values, thereby producing accumulated sums.

Abstract: The image projection apparatus of the present invention includes a light source that outputs coherent light; a phase modulator that performs phase modulation on the light output from the light source to create a Fourier transform image; an amplitude modulator that performs amplitude modulation on the Fourier transform image in accordance with an image signal; a projection optical system that projects the light that has been amplitude modulated, and a controller that divides the image represented by the image signal into a plurality of divided images, determines the target luminance value of each of the areas of the Fourier transform image that is divided corresponding to the division of the image, based on the image signal, and outputs phase data indicating the amount of phase modulation so as to make the luminance value of each area of the Fourier transform image acquire the target luminance value of the associated area.

Abstract: A lighting device includes: a phosphor wheel; a color-combining prism including dichroic surfaces, the film surfaces of these dichroic surfaces being disposed to cross a center ray of luminous flux of fluorescence emitted from the phosphor wheel and to be orthogonal to a plane that contains the center ray; a blue laser; a red laser; and excitation light sources. When viewed from the direction perpendicular to the plane, the blue laser, red laser, and excitation light sources are arranged on one side of the center ray of the luminous flux of the fluorescence.