Abstract: An anti-shake apparatus of a photographing apparatus comprises a movable unit, and a control apparatus. The movable unit has an imaging device, and can be moved in first and second directions. The control apparatus moves the movable unit to first, second, third, and fourth positions, and performs first, second, third, and fourth imaging operations, and a combination operation for obtaining an anti-shake image signal in which lag from hand-shake is corrected. In the first imaging operation, a first imaging position of a first photography frame in which lag corresponding to a first hand-shake quantity is corrected, is calculated, and a first image signal which is imaged at an overlapping area between an imaging field of the imaging device at the first position and the first photography frame, is obtained. In the combination operation, the anti-shake image signal is obtained by combining the first, second, third, and fourth image signals.

Abstract: A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral cross-section along the optical path, a third prism component having a second quadrilateral cross-section along the optical path, a first dichroic interface between the first and second prism components and along the third prism component and configured to reflect a first range of wavelengths of the light, and a second dichroic interface between the first and third prism components and along the second prism component and configured to reflect a second range of wavelengths of the light.

Abstract: A camera, in which it is possible to adjust the position of two mirrors easily for striking a balance between the focus detection performances in an optical viewfinder state and an electronic image display state. The optical apparatus includes a first mirror movable between a first position for an optical viewfinder and a second position for focus detection, a second mirror movable between a third position for focus detection and a fourth position where a light flux is not led to the second mirror, a first positioning member for positioning the first mirror at the second position, and a second positioning member for positioning the second mirror at the third position. The second positioning member is a member independent of the first positioning member.

Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.

Abstract: The invention concerns a display apparatus with an imager illuminated by an illumination system and with an imaging system projecting an image on a viewing screen, wherein the brightness of the image on the imager has a variation over a given direction, and wherein the illumination system has light controlling elements for controlling the light distribution over the given direction.

Abstract: A projection display comprises a display device, a projection optical system that has an aperture and is adapted to magnify and project an image appearing on the display device and a display panel including an image-formation device located near an image projected through the projection optical system for formation at a viewing pupil position of an aperture image of the projection optical system and a diffuser that has scatter action and is adapted to magnify the aperture image of the projection optical system into left and right viewing pupils. Misalignment warning pupils are adjacent to or overlap partly with the left and right viewing pupils via the display panel, and misalignment warning projectors for issuing a misalignment warning are located on the display panel and adjacent to at least one of the projection optical systems.

Abstract: In an apparatus, system, and method for generating a projected display, a light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers. The beams of individual lasers overlap and have a distribution of optical attributes selected to reduce speckle on a display surface.

Abstract: A video projector projects an image without reducing the resolution, onto the full dome surface by the use of a single-eye fisheye lens. The video projector has a single-eye fisheye lens for projecting a beam of light from an image display device onto the dome surface, a plurality of image display devices jointly uses the fisheye lens. The beams of light from the respective image display devices are combined and sent to the fisheye lens. Projected regions of images displayed on the respective image display devices correspond to certain sections of the dome surface. The projection image extends throughout the full dome surface.

Abstract: The present invention includes a light source which emits a plurality of lights having different wavelength areas, a plurality of image forming devices which are arranged on respective optical paths for the lights emitted by the light source and which are irradiated with the lights to form images via the lights, magnifying devices which process and magnify the respective images formed by the image forming devices to form magnified images, synthesizing devices placed on respective optical paths for the lights via which the magnified images are transmitted, the synthesizing devices superimposing the lights on one another to synthesize the magnified images together to form a synthesized image, and a projection lens placed on an optical path for the light formed by the synthesizing device to project the light.

Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in monochrome, color or gray scale. Edge-emitting light emitting diodes are employed, together with mutually orthogonal cylindrical lenses, to render the module with a short, slim form factor.

Abstract: The invention relates to a projection system using multiple light sources (1) at the same time. The projection system (100) comprises multiple light sources (1), a lens array system for each of the light sources (1), a condenser lens (2), an aperture means (3), a light valve assembly and a projection lens (5) to project an image. The light sources are adapted to each simultaneously illuminate the whole light valve assembly. In one aspect, the invention relates to a system and methods for allowing separately control of brightness, contrast, dichroic color shift or beam uniformity. This controlling or adjustment is performed by controlling and/or adjusting the cross-section of the illumination beam of each of the multiple light sources near the aperture of the aperture means.

Abstract: A scrolling device with color separation and a projection system incorporating same are disclosed. The scrolling device comprises a scrolling shaft and a plurality of dichroic mirrors that are spirally arranged as screw threads on the scrolling shaft. The scrolling device rotates around predetermined axis, and the dichroic-mirror threads can separate an incident light beams into two or more color light beams, thereby scrolling the positions of these color beams. The scrolling color beams are then transmitted to a light modulating panel in the projection system. Therefore, a single-panel projection system with color scrolling function is achieved.

Abstract: A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral cross-section along the optical path, a third prism component having a second quadrilateral cross-section along the optical path, a fourth prism component having a pentagon cross-section along the optical path, a first dichroic interface between the first and second prism components and between the third and fourth prism components and configured to reflect a first range of wavelengths of the light, and a second dichroic interface between the first and third prism components and between the second and fourth prism components and configured to reflect a second range of wavelengths of the light.

Abstract: A system, method, and apparatus for sensing an operational condition of a projection device and generating a signal to be used in the adjustment of the relative disposition of a component of the projection device, are disclosed herein.

Abstract: A projector which projects an image on a projection plane includes a projection mechanism having a first projection mode in which the image is projected on the projection plane by giving priority to color reproducibility and a second projection mode in which the image is projected on the projection plane by giving priority to brightness. The projector also includes a central processing unit. The central processing unit has a determination unit which determines a type of the image, a selection unit which selects one of the first projection mode and the second projection mode based on a determination result of the determination unit, and a control unit which controls the projection mechanism in accordance with one of the first projection mode and the second projection mode selected by the selection unit.

Abstract: A cooling system for cooling a semiconductor device including a display device provided in a projection-type image display apparatus with high cooling efficiency without sacrificing cooling performance is disclosed. The cooling system includes a radiating member provided with a convex-shaped heat-receiving portion thermally connected to a heat-generating element mounted on a printed circuit board, and a supporting member provided with an opening penetrating the heat-receiving portion, and a supporting portion for supporting the radiating member. The radiating member is integrally formed of a plurality of radiating fins, a base for supporting and fixing the plurality of radiating fins at one side thereof, and the convex-shaped heat-receiving portion disposed at a bottom face of the base, and the supporting member supports the radiating member from a bottom face of the base.

Abstract: A projection system is provided which includes a projection lens and a spatial optical modulation device (SOM) for projecting an image in response to an inputted picture signal. A control unit enables the selection, via an image adjustment menu, of at least one of a rotational deformation adjustment in which a projected image is rotated and a keystone deformation adjustment in which the projected image is deformed into a rectangle, and the control unit applies a rotational deformation adjustment and a keystone deformation adjustment to the projected image based on an item selected in the image adjustment menu in response to a deformation indication inputted from a keys/indicators unit, so as to deform the projected image.

Abstract: An optical device body (440) includes: three optical modulator holders (446) respectively holding three liquid crystal panels (441) and having cooling chambers with cooling fluid sealed therein to respectively cool the three liquid crystal panels (441) with the cooling fluid in the respective cooling chambers; a plurality of fluid circulators (448) intercommunicated with the three optical modulator holders (446) to guide the cooling fluid to the outside of the respective cooling chambers and re-introduce the cooling fluid into the respective cooling chambers; and a flow volume changer (449) disposed in a flow path of the cooling fluid and capable of changing flow volumes of the cooling fluid flown into the respective optical modulator holders (446) in accordance with heat values of the three liquid crystal panels (441).

Abstract: A projection display including first through third light source units to radiate first through third light beams having different colors, respectively, a light path combining unit to combine paths of the first through third light beams, an optical modulator to sequentially modulate the first through third light beams according to image information, and a projection lens unit to magnify and project the modulated light beams onto a screen. The light path combining unit includes first and second prisms. The first prism includes first and second incidence surfaces, through which the first and second light beams are incident, respectively, a first emission surface, and a first selective reflection surface to transmit the second light beam toward the first emission surface.

Abstract: An illumination optical system which can use light from a light source with high efficiency and can provide an illumination luminous flux with highly uniform illuminance, is disclosed. The illumination optical system illuminates an illumination surface with a generally telecentric illumination luminous flux. In light intensity distribution of illumination light on the illumination surface changing depending on a deviation angle of an incident ray with respect to a normal to the illumination surface, the illumination optical system operates the illumination luminous flux such that a ratio of angle widths at which light intensity reaches half of a peak value in each of two axis directions orthogonal to each other on the illumination surface is an aspect ratio of 2:1.