Abstract: The invention relates to an image display device comprising at least three light panels for emitting at least three light beams having different colors, combination means which are rigidly connected to a frame for combining the three light beams to a combined light beam for projection on a screen, positioning means for spatially positioning the three light panels and fixation means for fixing a position, adjusted with the aid of the positioning means, of the individual light panels with respect to the combination means, wherein the positioning means comprise three plate-shaped elements for each light panel, which elements are oriented at right angles to the associated light panel and are each rigidly connected to the frame along a connecting edge, and are each pivotally connected to the associated light panel at a distance from the connecting edge.

Abstract: An installation structure for a camera includes a frame having an installation hole, and a bolt having a through hole therein. The bolt passes through the installation hole and fixed to the frame. A camera body is fixed to the frame through the bolt, and a cable of the camera passes through the hollow screw portion. The bolt may be integrally formed with the camera. Further, the camera may be fixed with the bolt via a variable angle installation member to adjust a viewing angle of the camera.

Abstract: An image projector system includes a light source, a light-modulating device, and a projector lens set. The light source includes a rectangular housing formed with a light-transmissive output port and at least four light-transmissive input ports, at least four light emitting diode modules, and a mirror set mounted in the housing for directing light beam outputs of the light emitting diode modules that are transmitted into the housing through the light-transmissive input ports to pass through the light-transmissive output port for processing by the light-modulating device. The light beam output of each of the light emitting diode modules has a wavelength band within a range of from 400 to 700 nanometers, that is different from the other light emitting diode modules and that has a center wavelength spaced apart from that of the other light emitting diode modules by at least 20 nanometers.

Abstract: A color wheel module for an image display device prevents the motor from being damaged during balancing processes. The color wheel module includes a spindle, a motor, a carrier, a connection ring and a color wheel. The motor drives the spindle to rotate. The carrier is mounted onto the spindle and is driven by the spindle for rotation. The color wheel includes a plurality of color filters bonded onto the connection ring, and then the bonded color filters and the connection ring are mounted onto the carrier. Thus balancing of the color wheel may be done before it is mounted on the carrier to avoid damaging the spindle and the motor resulting from adding or removing substance during the balancing process.

Abstract: The invention relates to a device for adjustment of a line sensor in a film scanner. A glass disk is arranged between each emitting surface of a color separator and the respective line sensor. Said disk may be rotated in two directions, out of a plane lying perpendicular to the beam direction, such that the light emitted from the glass disc is displaced, depending on the angle of the rotation.

Abstract: A lens barrel is associated with a frame body of a camera for advancing and retracting movements along an optical axis direction. A film accommodating chamber is located on the side outward from the lens barrel with respect to a direction normal to the optical axis direction. A motor is secured to the frame body, mechanical power of the motor being transmitted to the lens barrel via a gear train to move the lens barrel along the optical axis direction. The motor is located within a space defined by the lens barrel and the film accommodating chamber, such that an output shaft extends in a plane normal to the optical axis. The frame body has a path for insertion of a motor securing tool.

Abstract: It is an object to obtain a light source device and a projection type display device in which a fragment can be completely enclosed therein even if a discharge lamp bursts during lighting. During normal lighting of a discharge lamp (1), an internal space of a light source device (10) and an external space are spatially connected to each other through a vent hole (43) formed on a cutoff valve mechanism (45) and a vent hole (100) formed on a concave reflecting mirror (4). Cooling air is introduced and discharged between the internal space and the external space so that the discharge lamp (1) is cooled down. When the discharge lamp (1) bursts during lighting for some reason, a very strong impulsive pressure wave is generated in a moment of the burst. The pressure wave presses a movable valve (41) provided in the cutoff valve mechanism (45) through the vent hole (100).

Abstract: A camera, used with photographic film, has a body having an exposure support surrounding an exposure opening. The body defines an encoder light path. An encoder is mounted in the body in alignment with the encoder light path. The encoder has an axis of rotation. The encoder has a marker occupying part of the encoder light path. The marker has a pair of subunits. The subunits are opposed relative to the axis of rotation. A drive is coupled to the encoder. The drive selectively rotates the encoder about the axis of rotation between a primary position and a plurality of secondary positions. The subunits are both disposed in the encoder light path in all of the positions.

Abstract: An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.

Abstract: An electromagnetic actuator for driving the shutter of a camera includes a rotor (10) magnetized with the N and S poles, and first magnetic pole parts (21, 31) and second magnetic pole parts (22, 32) that are disposed to face the outer circumferential surface of the rotor (10) and generate mutually different magnetic poles when an electric current is applied to the coil (40), in which an output pin (11) of the rotor (10) is magnetized with one of the N and the S poles and forms a projection that projects outward in the radial direction, and, in the vicinity of the first magnetic pole part (31), an auxiliary magnetic pole piece (33) is provided that is disposed near the output pin (11) serving as a projection when the rotor (10) is located at an initial position and that generates the same magnetic pole as the first magnetic pole part (31) in a current-running state. Therefore, a maintaining force can be raised especially in a current-stopped state, and a driving force can be raised.

Abstract: The present invention comprises a polarizer adhered on a flange plate at the top end of a L-shape base, an aslant surface on one side of the base, two sleeve screws protruded from the center of the aslant surface, an air duct defined between an upper base and a lower base of a Z-shape fixed base, two slots disposed on the lower base for receiving the sleeve screws, and two fixing bolts securing the washers onto the sleeve screw to limit the fixed base on the aslant surface of the base. A supporting surface is formed at a flange disposed downward at both ends of the upper base of the fixed base for gluing a half-wave plate. An adjusting mechanism protruded from the lower side of the fixed base extends into a recess at the lower end of the aslant surface; a screw hole is disposed on a side of the base and having an adjusting slot with its end propping one side of the adjusting mechanism; and an elastic member with its ends respectively fixed to a side of the base and a hole of the adjusting mechanism.

Abstract: Disclosed is a projection type display apparatus comprising: a color light generator for generating primary color lights; three light valves for respectively modulating the primary color lights; a color synthesizer for synthesizing the primary color lights which have been modulated by the light valves, respectively; a plurality of pre-PBSs each of which is provided between the primary color light generator and the respective light valves and is for removing polarized component unnecessary for illumination of the respective light valve; a plurality of main PBSs each of which is provided at a position that is between the respective pre-PBS and the respective light valve and is between the respective light valve and the color synthesizer and is for removing polarized component unnecessary for illumination of the respective light valve and polarized component unnecessary for projection to the screen in the primary color light modulated by the respective light valve; and a plurality of post-PBSs each of which is p

Abstract: A color wheel including a motor, a color filter and a washer. The color filter is set on the motor. The washer is set both on the motor and the color filter and the color filter is set between the washer and the motor. A recess is formed between a circumferential edge of an outer surface of the washer and the color filter. In addition, the invention also provides a washer of a color wheel.

Abstract: A camera mechanism comprises a shutter blade movable to uncover and cover an exposure aperture; a primary spring connected to the shutter blade to normally move the shutter blade to cover the exposure aperture, but susceptible of becoming disconnected from the shutter blade, and a substitute spring connected to the shutter blade to alternatively move the shutter blade to cover the exposure aperture when the primary spring becomes disconnected from the shutter blade.

Abstract: A camera including a photographing optical system and a finder optical system, includes an objective optical system and an ocular optical system, the optical axes thereof being parallel with each other; a reflection surface which reflects a light bundle in the vertical direction of the camera; a reflection surface which reflects the light bundle in the horizontal direction of the camera toward an light-emitting optical axis of the ocular optical system; and a reflection surface located on the light-emitting optical axis to make a connecting optical axis coincident with the light-emitting optical axis of the ocular optical system. The connecting optical axis is inclined with respect to the horizontal direction of the camera so that the optical axes of the objective optical system and the ocular optical system are close to each other with respect to the vertical direction of the camera.

Abstract: The invention provides a liquid crystal projector which can blast an increased amount of cooling air to raise the cooling efficiency without increasing the size of an optical prism unit. The liquid crystal projector includes a dichroic prism, a base for securing the dichroic prism with a lower plate interposed therebetween, a plurality of liquid crystal panel units disposed on side faces of the dichroic prism, and a cooling fan disposed below the base. The base has air holes formed therein such that air current generated by the cooling fan is introduced to the liquid crystal panel units through the air holes to cool the liquid crystal panel units. The lower plate has inclined faces at portions thereof which oppose to the air holes of the base.

Abstract: The invention provides a camera including a hold barrel member which holds an image-taking optical unit; a barrier member, disposed on a subject side of the hold barrel member, which opens or closes a substantially rectangular opening; and a barrier driving member, disposed between the barrier member and the hold barrel member, which drives the barrier member in such a way as to rotate on an optical axis of the image-taking optical unit. In a state in which the barrier member opens the opening, the hold barrel member forms a long side part of the opening, and the barrier driving member forms a short side part of the opening.

Abstract: In a method for aiding a user to customize a motion film selection, a film clip including a video track and a sound track comprising one or more actor voice tracks and a background track is selected, the sound track is modified to remove a selected actor voice track, the film clip with the modified sound track is displayed to the user, text representative of the selected actor voice track is displayed in synchrony with selected actor voice track while displaying the film clip to the user, a new voice track generated by the user is recorded for synchronized playback with the selected actor, and a new sound track including the modified sound track and the new voice track is saved.

Abstract: A projection apparatus is disclosed which uses a light modulation element of the reflection type and can demultiplex and multiplex light appropriately. The projection apparatus includes four PBSs including an incoming PBS, a RB-PBS, a G-PBS and an outgoing PBS to demultiplex illumination light emitted from a lamp into light components in wavelength bands of blue, red and green. The illumination light in the wavelength band of green is introduced to a position at which the highest contrast is obtained, and a third liquid crystal panel is disposed at the position. The illumination light in the wavelength band of red is introduced to another position at which the second highest contrast is obtained, and a second liquid crystal panel is disposed at the position. The illumination light in the wavelength band of blue is introduced to the remaining position, and a first liquid crystal panel is disposed at the position.

Abstract: A projection type image display apparatus comprises a variable stop mechanism adapted to regulate the size of effective luminous flux diameter at a predetermined position in the optical path from an illumination optical system to a projection lens system, and image mode switching means for controlling operations of the variable stop mechanism. Respective image modes suitable for viewing in bright and dark surrounding environments are selected by switching between greater and smaller effective luminous flux diameters.