Abstract: A reflection type projector includes a light source, a reflection type light modulating element, a projection lens, a condenser lens, and first and second adjusting mechanisms. An illumination light emitted from the light source passes through the condenser lens and enters into the reflection type light modulating element. The reflected light from the element passes through the condenser lens and is projected on the screen to form an image through the projection lens. The first adjusting mechanism adjusts the position of the projection lens along a direction perpendicular to the optical axis of the projection lens to move the position of the projected image. The second adjusting mechanism adjusts the position of the condenser lens along a direction parallel to the adjusting direction of the projection lens so that the reflected light enters into the projection lens.

Abstract: An image projector is provided with a light source and a light valve positioned downstream of the light source. An optical path is defined between the light source and the light valve. To accommodate various image viewing formats, a plurality of optical integrators is positioned between the light source and the light valve. Each of the plurality of optical integrators is movable laterally of the optical path and is positionable in the optical path. Light from the light source is transmitted to the light valve through the particular optical integrator positioned in the optical path. Each optical integrator is constructed to produce a unique display format for the light transmitted therethrough to the light valve, in order the accommodate different display formats such as standard and letter-box without wasting light.

Abstract: A photographic printer has a lamp which projects light through a cut-off filter, a filter unit, and a diffusion plate. The light travels further through a film negative, an objective lens, and to a polarizing beam splitter. The beam splitter provides the light to a spatial light modulator and to an exposing/enlarging lens. The spatial light modulator includes a light modulating layer of a homeotropically oriented nematic liquid crystal having a negative dielectric anisotropy. Layers of transparent electrodes in the spatial light modulator are provided with a predetermined voltage of a predetermined frequency. A write CRT, controlled by a controller and control unit, provides light to the spatial light modulator so that the light from the beam splitter can be modulated with an appropriate correction. The modulated light and the light from the beam splitter are made incident on a photographic color paper. The photographic printer has improved compensation for blur caused by dust on the optical path.

Abstract: In a projector having liquid crystal panels as light modulators, the liquid crystal panels are independently used for white-light modulation and colored-light modulation, respectively, so that high luminance and high resolution are compatibly attained. The projector has a liquid crystal panel which is driven by color signals, and which subjects light to colored-light modulation, and another liquid crystal panel which is driven by a luminance signal wherein a portion lower than a predetermined level is compressed by a compressing circuit, and which subjects light to white-light modulation. Modulated light outputted from the two liquid crystal panels are synthesized with each other in a polarized beam splitter, and the image of the synthesized light is formed on a screen by a lens. It is preferable that the color signal and the white signal which will be inputted to the liquid crystal panels are obtained from a composite video signal of the NTSC system.

Abstract: An image display apparatus is disclosed which includes: an optical system including a light source and at least one projection lens; a display means for forming a display image, the display means including a non-luminescent display panel and a microlens array disposed on the light-incidence side of the display panel; and at least one projection lens for projecting the display image; wherein the display panel and the microlens array are combined with each other by means of an adhesive made of a transparent material. In cases where the microlens array is provided with color filters which are arranged so as to correspond to the microlenses of this array, the image display apparatus can provide a bright display of color images with an improved contrast. Moreover, when the display panel and the microlens array are combined with each other by means of an adhesive containing spacers, the image display apparatus has a high thermal reliability.

Abstract: A method of correcting the light amount irregularities for a photographic printer in which an image displayed on a two-dimensional display unit is exposed by transmitting or reflecting the light from a light source through or from the two-dimensional display unit is disclosed. An LED light source is turned on with a predetermined driving voltage applied to all the pixels of a liquid crystal panel. The image on the liquid crystal panel is exposed for a predetermined length of time by the light transmitted through the liquid crystal panel and developed thereby to produce a photographic print. The density at a point corresponding to each pixel of the liquid crystal panel is measured. The light transmittance correction amount for each pixel of the liquid crystal panel is determined in such a manner that the density measured at each point conforms to a predetermined reference density (a minimum value of density measurement, for example).

Abstract: A high definition image projector is provided for modulating light using an acousto-optic tunable filter according to image signals and projecting the modulated light on a screen. An image is obtained by modulating a light beam by pixel units according to the image to be displayed and directly projecting the modulated light beam on the screen in corresponding pixel units. High quality images can thus be displayed on a large screen. By adopting a high-output light source, a high luminance image can be obtained.

Abstract: Color display device for projection of the type comprising a light-switching device, for example a device illuminated by successive light strips of different colors (sequential color single panel projector) in which a display device with a matrix of pixels driven by active switching elements is advantageously used for the light-switching device (based on, for example ferro-electric liquid crystal material), the drive being chosen to be such that there is no memory action to a subsequent sub-frame. Due to the voltage-independent capacitance, notably of ferro-electric pixels, a simple drive mode can be used in which a simple correction for possible capacitive effects is sufficient. Notably in a two-pole drive mode, use can be made of the relatively longer time available for (optical) reset. A combination of the two types of drive mode is possible. Compensation of DC effects within a small part of the frame period is also possible without affecting the contrast.

Abstract: A projector for use with a light source and including a shutter assembly panel having a multiplicity of pixel light valves overlying an array of interspersed shutter pixels each of which transmits only one of a plurality of colors, and a color filter disposed intermediate the light source and the planar shutter and spaced therefrom and having an array of interspersed filter pixels, each of which only transmits only one of a plurality of colors, wherein the array of interspersed filter pixels is in light and color registration with the array of interspersed shutter pixels, such that generally light of a given color impinges on a shutter area of the same color.

Abstract: The present invention relates to a video system for entertainment and game apparatus. The video system includes a data carrier on which the game is stored. Video informations (pictures) stored on the data carrier are displayed on a display unit. By a lens and projection system the picture is imaged on a curved projection screen that at least partially surrounds the player. Preferably, the video informations are stored on the data carrier in pre-equalized form so that the image projected on the projection screen is essentially free of distortion.

Abstract: Light from a light source 12 is incident to a transmission type liquid crystal display panel 11 and the light transmitted therethrough is incident to two reflecting surfaces 14a and 14b of a polygon mirror 14. A shield plate 16 is interposed between a line dividing the display surface of the liquid crystal display panel 11 into equal right and left surfaces areas and the marginal edge of the polygon mirror 14 along which its reflecting surfaces 14a and 14b adjoin. Light transmitted through the right-hand surface area of the liquid crystal display panel and light transmitted through its left-hand surface area are reflected by the reflecting surfaces 14a and 14b, respectively, and are further reflected forward by reflecting mirrors 21a and 21b for projection onto screens 17a and 17b by projection lenses 22a and 22b.

Abstract: A color liquid crystal display apparatus according to the present invention includes: a transmission type liquid crystal display device including a plurality of pixels arranged in a matrix along a first direction and a second direction perpendicular to the first direction, wherein incident light is spatially modulated by selecting one of the plurality of pixels, a white light source for emitting white light; dichroic mirrors for splitting the white light emitted from the white light source into at least three bundles of rays of different wavelength bands, the bundles of rays going out from the dichroic mirrors at different angles; lenticular lens layers provided between the liquid crystal display device and the dichroic mirrors, the lenticular lens layers converging the bundles of rays led through the dichroic mirrors onto different ones of the plurality of pixels depending on the wavelength bands thereof, wherein the lenticular lens layers includes a first lenticular lens layer and a second lenticular lens l

Abstract: An electronic transparency device is provided with a memory in which a plurality of frames of video data ("slides") can be stored. The apparatus includes a control microprocessor which can cause predefined sequences of slides to be presented on the LCD panel automatically. These slide "shows" are defined by the user using a hand held remote control unit in conjuntion with menus displayed on the LCD panel in window fashion by the microprocessor. The user can specify the duration that each slide in a sequence is to be shown, the video transition by which it is to be introduced, the degree of "windowshading" with which it is to be displayed, etc. Once a show is defined, it can be instituted and controlled from the remote control unit. Among other numerous features, the transparency also includes a pointer that can be superimposed on the display and controlled by the remote control unit. This pointer can be used to define certain portions of the screen that are to be displayed in highlighted fashion.

Abstract: An image projector apparatus for producing an image for display on a projection screen. The image projector apparatus includes a plurality of first microlenses each receiving light from a light source, a liquid crystal display having a plurality of pixels each adapted to receive light from a respective one of the first microlenses and provide respective image light therefrom in response to image information supplied thereto, a plurality of second microlenses each receiving the image light from a respective one of the pixels and projecting parallel image light therefrom, and a projection lens receiving the parallel image light from each of the second microlenses and projecting the same onto the projection screen. The projection lens may be moved or positioned such that an optical center axis thereof is offset from an image center axis of the liquid crystal display so as to eliminate or minimize a so-called keystone distortion.

Abstract: A color projection video system utilizing only a single light valve. A white light source is separated into red, green and blue bands. Scanning optics in the form of three prisms coaxially mounted for rotation cause the RGB bands to be sequentially scanned across a light valve, such as a transmission LCD panel. Prior to each color passing over a given row of panels on the light valve, that row will be addressed, by the display electronics with the appropriate color content of that portion of the image which is being displayed. The image is projected by a projection lens onto a viewing surface, such as a screen. The sequence of light bands occurs so quickly as to give the viewer an appearance of simultaneous full color.

Abstract: The present invention offers a display system for displaying information comprising a linear array of N light-emitting devices emitting light of predetermined wavelength, the devices are arranged respectively with N pixels, a stream of the information is divided into pieces each of which containing the N pixels, and the N light-emitting devices are caused to emit N light beams simultaneously in a form of array during a given period for every divided piece of the information, the every divided piece of information may correspond to one line of a frame of picture, the N light beams are intensity-modulated respectively with the divided piece of the information, the N light beams are deflected simultaneously in a direction perpendicular to a direction of the array of the N light beams, and a spatial light modulator having a photoconductive layer and a light modulation layer interposed between a pair of electrodes, the photoconductive layer is responsive to the deflected N light beams incident thereto through a fo

Abstract: A liquid crystal finder attached video camera whose liquid crystal finder is usable as a liquid crystal projector.

Abstract: A projection liquid crystal display (LCD) system includes an LCD panel including a first plurality of horizontally aligned transparent conductive scanning electrodes and a second plurality of vertically aligned transparent conductive signal electrodes disposed on opposed surfaces of the panel. Light directed onto the aft surface of the display panel is transmitted through the panel as each horizontal linear array of first scanning electrodes is turned "ON", with the horizontal linear arrays sequentially turned on for vertically scanning the display panel in a stepwise manner. Liquid crystal display backlighting is provided by a cathode ray tube (CRT) having a phosphor-bearing faceplate which emits light when energetic electrons in the form of a horizontal, linear, elongated beam are incident thereon.

Abstract: An electronic movie camera system having a projecting function as well as a view finding function.

Abstract: A projection display device capable of selectively operating in a front projection mode and a rear projection mode, comprises a projector (300) disposed in a cabinet, a rear projection screen formed in a wall of the cabinet, and a front projection screen disposed outside the cabinet. To permit selection between the front and rear projections, the projector may be detachably mounted on the cabinet: when it is mounted the image rays (110) are introduced into the cabinet for the rear projection, while when it is detached it can be used for the front projection. In another embodiment, a selective light guide directs the image rays either to the rear projection screen or to the front projection screen. In a further embodiment, the rear projection screen can change between transparent and translucent states. When it is transparent, the image rays are passed therethrough to the front projection screen.

Abstract: A method for producing a natural color display on a display panel, wherein means for reformatting video signal images for a grey-scale matrix liquid crystal or ferroelectric liquid crystal panel such that frames of image are presented sequentially in time, each frame containing the information of a particular color, and then illuminating said image with the appropriate primary color light. Such images are presented to the viewer at a rate above the color fusion frequency of the eye and thus appear as a full color image.

Abstract: A video projection system having a liquid crystal panel with a video image, a projection lamp with ON/OFF control, a zoom lens with a zoom control mechanism, a focusing lens with a focusing control mechanism, an audio system with a volume control, a projection-lamp light detector, a heat sensor, a variable-speed cooling fan, a control module having a microprocessor and a digital-to-analog converter, a display, a keypad, an alarm/annunciator, a power supply with ON/OFF control, and an infrared based remote control system able to control power ON/OFF, zoom, focus, picture, and sound volume.