Abstract: A security device includes: an elongate focusing structures array, the elongate axes are aligned along a first-direction, the elongate focusing structures parallel to one another periodically along a second-direction is orthogonally to the first-direction, each elongate focusing structure having an optical footprint of different elongate strips will be directed to the viewer in dependence on the viewing angle, the centre line of each optical footprint parallel with the first-direction; image elements-array overlapping the array of elongate focusing structures, the image elements-array representing elongate image slices of at least two respective images, each image slice including one or more image elements, and at least one image slice of each respective image in the optical footprint of each elongate focusing structure.

Abstract: An automated lenticular photographic system includes an interface that permits a user to upload image files and image processing and printing equipment that is in communication with the interface for receiving the uploaded image files and processing the uploaded image files to create an interlaced print image file that is used to produce an interlaced print sheet containing interlaced print images. A pair of registration marks is formed on the interlaced print sheet outside of borders of the interlaced print images to assist in aligning the interlaced print sheet with a lenticular lens sheet. A registration system detects whether the lenticular lens sheet is off-centered and skewed relative to the interlaced print sheet.

Abstract: An optical member includes: a total reflection mirror including a reflection surface for reflecting a laser beam; a filter including a partially transmissive surface for passing therethrough a part of the laser beam and reflecting the remaining part of the laser beam, the partially transmissive surface being located so as to be opposed to the reflection surface ; and a diffraction grating into which the laser beam enters, for diffracting the incident laser beam to enter the total reflection mirror or the partially transmissive filter.

Abstract: An automated lenticular photographic system includes an interface that permits a user to upload image files and image processing and printing equipment that is in communication with the interface for receiving the uploaded image files and processing the uploaded image files to create an interlaced print image file that is used to produce an interlaced print sheet containing interlaced print images. A pair of registration marks is formed on the interlaced print sheet outside of borders of the interlaced print images. The system also includes a processing station where the interlaced print sheet is aligned with a lenticular lens sheet with a registration system that detects whether the lenticular lens sheet is off-centered and skewed relative to the interlaced print sheet. The system also includes means for controllably adjusting the position of the lenticular lens sheet relative to the interlaced print sheet until proper registration between the lenticular lens sheet and the interlaced print sheet is achieved.

Abstract: An illuminating unit and a display apparatus including the illuminating unit are provided. The illuminating unit generates and emits light to a display element of the display apparatus, and includes a light source; a uniformizing unit which uniformizes light from the light source and includes a plurality of uniformizing lenses arranged on an optical path; a condensing unit which condenses light from the uniformizing unit to emit the light to the display element and includes a plurality of condensing lenses sequentially arranged on the optical path, and the uniformizing unit and the condensing unit are arranged based on a width of one of a plurality of cell lenses forming the uniformizing lens and a width of an image displayed in the display element.

Abstract: A projection-type display apparatus that projects an image on a screen and performs image display includes at least one laser source that emits a coherent light beam, an illuminating optics that propagates the light beam emitted from the laser source into a predetermined optical path to guide the light beam to the screen, a reflective optical modulator that forms the image to be displayed on the screen on an illuminated surface illuminated by the light beam guided by the illuminating optics, and a projection optics that magnifies and projects the image formed on the illuminated surface of the reflective optical modulator on the screen. The illuminating optics includes a diffusion device, which diffuses the propagated light beam, and is arranged on a light propagation path near a conjugated position with the reflective optical modulator.

Abstract: An image adjusting device and method for image projection in an aircraft, in which vibration-induced excursions between a projection device and an associated projection surface are offset via the corresponding acquisition of position-time states in such a way that an image displayed on a display surface remains essentially unchanged.

Abstract: A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image.

Abstract: A video projector includes a reduced size spatial light modulator (400) that spatially modulates light from a light source (502) according to only a portion (e.g., ½) of a video frame at a time. A beam steerer (508, 600, 1600) steers spatially modulated light from the spatial light modulator to a correspond region (e.g., upper half, lower half) of a projection screen/surface (512) and one or more lenses (506, 510, 702, 802, 1002, 1008, 1100, 1300, 1502) insure that the spatially light modulator (400) is imaged onto the projection screen/surface (512).

Abstract: A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams.

Abstract: A reduced product height/thickness projector includes an illuminator, an electro-optic modulator, a projection system, a collector lens, and associated housing. The illuminator including a light source that emits an illumination light flux, a first lens array having a plurality of first lenslets that divide the illumination light flux from the light source into a plurality of sub-light fluxes, a second lens array having a plurality of second lenslets corresponding to the plurality of first lenslets, and a superimposing lens that superimposes the sub-light fluxes from the second lens array on an illuminated area. The central axis of the image formation area of the electro-optic modulator and the lens optical axis of the superimposing lens is shifted from the light source optical axis of the light source. The lens optical axis of the collector lens is shifted opposite from the central axis of the image formation area of the electro-optic modulator.

Abstract: Light emitted from a lamp enters a color wheel having a region for allowing a predetermined color to pass therethrough, is reflected on a mirror, and enters a DMD. After this, the light is reflected by the DMD and enters a color sensor, which then detects the color of the transmitting light. A projection apparatus automatically synchronizes the control on the rotation of the color wheel and the control on the proceeding direction of the transmitting light by the DMD, based on a color time-division pattern of the transmitting light detected by the color sensor.

Abstract: A digital image projector includes a light assembly configured to project light along a light path from at least one laser array light source, the projected light having an overlapping far field illumination in a far field illumination portion of the light path; a temporally varying optical phase shifting device configured to be in the light path; an optical integrator configured to be in the light path; a spatial light modulator located downstream of the temporally varying optical phase shifting device and the optical integrator in the light path, the spatial light modulator configured to be located in the far field illumination portion of the light path; and projection optics located downstream of the spatial light modulator in the light path, the projection optics configured to direct substantially speckle free light from the spatial light modulator toward a display surface.

Abstract: A projection image display device including a display plane for displaying an image, a projection mechanism projecting an image on the display plane, and an imaging mechanism arranged on the same side of the display plane as the projection mechanism for imaging the display plane. The imaging mechanism is arranged at a position where a position symmetric with respect to the display plane of the projection mechanism is out of the range of the field angle of the imaging mechanism. By arranging the imaging mechanism at a position where no direct reflecting light of the light source of the projection mechanism comes, it is possible to prevent generation of a hot spot.

Abstract: A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams.

Abstract: An illumination optical system includes a splitter that includes first and second beam splitters. The second beam splitter includes, on a light source side, a compression optical system for narrowing a width of an incident light and for emitting the incident light having the narrowed width, wherein the compression optical system includes, in order from the light source side to an image display element side, an optical element having a positive refractive power, and an optical element that has a negative refractive power and a concave surface at the image display element side.

Abstract: A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image.

Abstract: Improved apparatus and methods for displays are disclosed that utilize light concentration array between mechanical light modulators and the viewing surface of the display. The light concentration array includes an array of optical elements that concentrate light on respective ones of the light modulators to maximize the contrast ratio and off axis viewing of the display.

Abstract: Systems and methods are described employing a first lens array and a second lens array that are separated by one focal length that receives a plurality of colors signals from an X-prism and transmits to a condenser for overlapping lenslet images onto a display panel, such as a LCOS or LCD display panel. The first lens array includes a plurality of lenslets where each lenslet in the first lens array corresponds with each lenslet in a plurality of lenslets in the second lens array. The lenslets can be either refractive, defractive, or a combination of refractive and defractive.

Abstract: Three light sources are provided as a light source. A first light source emits a light in red, a second light source emits a light in green, and a third light source emits a light in blue. Each light source is a light source in which a plurality of LEDs (light-emitting diodes) are arranged in the same plane surface. The first light source, the second light source, and the third light source are arranged on the same plane surface. Furthermore, lines connecting the first light source, the second light source, and the third light source form a triangle. Light fluxes (primary optical axes) of each light source are parallel with each other. The first light source, the second light source, and the third light source are arranged on one piece of a cooling plate.

Abstract: A projector has an illumination system, an electro-optical modulator, a projection optical system, and a scanning system. The illumination system has a light source, a first lens array, a second lens array, a polarization conversion element and a superposing lens. The polarization conversion element includes a polarized light separating element and a phase plate. The polarized light separating element includes a plurality of polarized light separating prisms each of which has a polarized light separating surface and a reflection surface. The plurality of polarized light separating prisms are arranged along the one direction, and polarized light separating surfaces in the polarized light separating prisms at both ends of the polarized light separating element in one direction are constituted so as to reflect the luminous flux involving the second polarized light component in a direction approaching the illumination optical axis.

Abstract: A projector includes an illuminating device having a light source device, a first lens array having plural first small lenses, a second lens array having plural second small lenses corresponding to the plural first small lenses, and a superposing lens; an electro-optic modulator, and a projection optical system. A conjugate point of an image forming area in the electro-optic modulator is located on the light source device side or the projection optical system side from the vertex of a lens curved surface in each first small lens of the first lens array. An eccentric amount of each second small lens in the second lens array is adjusted such that each principal ray of the partial light beam passing through each first small lens in the first lens array passes an approximately central portion of the image forming area on the image forming area of the electro-optic modulator.

Abstract: A multi-trail spot click-event detection method is disclosed, which uses a camera to capture a plurality of consecutive images from a display screen. The camera is connected to a host and sends the consecutive images to the host for determining if a click-event occurs. Firstly, pixels of each difference image with the brightness difference in a pre-determined range are selected to form blobs. Next, possible spots of the blobs in each difference image are found. Then, the possible spots found are assigned to a specific trail. Finally, when a spot of the specific trail is absent at a next time point immediately after the spot is presented, occurrence of a click-event is detected.

Abstract: A liquid crystal panel unit (2) includes, on its side from which light enters, a micro-lens substrate (1) having: a first micro-lens array including a first lens (5) for converging, for converging, on aperture sections (17R•17G•17B) of respective picture elements in a liquid crystal display element, the plurality of the light beams whose respective incident angles are different from one another; and a second micro-lens array having a second lens (7) for collimating principal rays of the respective light beams. The second lens (7) is substantially trapezoid so that the lens includes slanted surfaces (7b•7b) directing its convex parts towards the light incident side. With this configuration, it is possible to realize a single-panel mode color-filterless projection-type liquid crystal display device with high light-using efficiency at a low cost, without deteriorating the light-using efficiency.

Abstract: The disclosed embodiments relate to a system and method for generating images. There is provided a method comprising directing light through a projecting lens (28) at a first pixel position (60a) on a screen (32), and shifting the projecting lens (28) such that the light is directed on at a second pixel position (66) on the screen (32), wherein the second pixel position (66) is diagonally offset from the first pixel position (60a).

Abstract: The present invention relates to a color separating-combining optical system of a configuration having a separating optical system which separates light from a light source into a plurality of color spectrums; a combining optical system which combines light spectrums from a plurality of image display elements illuminated by the respective color spectrums; a filter which transmits a color spectrum of a specific wavelength band out of the plurality of color spectrums separated by the separating optical system; and a plurality of polarizing elements each disposed on the light entrance side of the plurality of image display elements, the polarizing elements being adapted to analyze the corresponding color spectrums incident to the respective image display elements. The color separating-combining optical system is further characterized in that the filter is placed apart from the polarizing element corresponding to the color spectrum transmitted by the filter.

Abstract: A film having a high transmittance and matt property is disclosed which has, on a transparent support 1, a hard coat layer 2 incorporated therein particles 4 of a particle size of 1.0 to 10 ?m that is larger than the layer thickness thereof, and a low-refractive-index layer 3 having a refractive index of 1.45 or less and covering said hard coat layer, wherein a haze value is 1.0% or more, and a total transmittance of light is 93.5% or more. The film having a high transmittance can prevent occurrence of unevenness of display due to thermal expansion of a light-tuning film and occurrence of unevenness of brightness peculiar to the light-tuning film.

Abstract: A scrolling unit and a projection system using the same are provided. The scrolling unit is formed by spirally arranging on an outer circumferential surface of a column-like plate at least one lens cell which separates the incident light into a plurality of beams. As the scrolling unit rotates about a predetermined rotating axis, a lens array, defined by an area of the scrolling unit through which light passes, moves rectilinearly. Due to the use of the scrolling unit, a simple projection system can be obtained, and color scrolling is easily performed.

Abstract: A projection type display device includes: a light source for emitting light including multiple light components falling within different wavelength ranges; pixels for modulating the light independently; a first optical system, which receives the light from the light source and directs it toward the pixels; and a second optical system, which projects the light, modulated by the pixels, onto a projection plane. The first optical system includes an optical element for converging the light components onto mutually different ones of the pixels in accordance with their wavelength ranges. The pixels are arranged in a predetermined azimuth on a panel plane where the pixels are defined. The element has a first length in a first direction defined by the azimuth and a second length, greater than the first length, in a second direction substantially perpendicular to the first direction. The element converges the light components in the first and second directions.

Abstract: An improved system is disclosed for displaying multi-image or animated holograms, in which the light that is used to illuminate the hologram is reflected to the hologram through one or more mirrors, and the angle at which the incoming light illuminates the hologram is varied over time.

Abstract: A first positioning step positions and fixes a light focusing element and a polarization converting element. A beam introducing step introduces beams to a beam splitting element, the light focusing element and the polarization converting element. An optical image forming step detects an optical image through the above elements. An illumination-area comparing step performs an image processing on the detected optical image to compare an illumination area formed by the optical image with a designed illumination area. A beam-splitting-element position-adjusting step adjusts the position of the beam splitting element.

Abstract: A system for a reduced moiré display has a lenticular screen, a projector, and means for disturbing at least a portion of the projector to cause displacement of the projection of pixels on the screen to reduce moiré. A method for reducing moiré projects a plurality of pixels onto a lenticular screen and disturbs the projector to cause displacement of the projection of pixels to reduce moiré.

Abstract: An optical projection system that produces an image by use of a lenticular array and one or more lightvalves together with different lens filters in a variety of configurations and lenticule shapes.

Abstract: An optical projection system that produces an image by use of a lenticular array and one or more lightvalves together with different lens filters in a variety of configurations and lenticule shapes.

Abstract: A projection engine having an illuminating system comprising: a light source for illuminating light; a reflecting mirror for reflecting only light which does not pass through a hole among light emitted from the light, wherein said reflecting mirror has a hole in the center portion thereof; a parabolic mirror for returning and irradiating the light emitted from the light source and the light returned from the reflecting mirror; a flyeye lens for making light emitted from the light source and the reflecting mirror uniform so as to let light irradiated with uniform brightness; and a relay lens for transmitting light passed through the flyeye lens; a color separation/combination system for separating light from the illuminating system into R, G and B components and then combining them; an imager for affording images corresponding to the R, G and B components of light separated by the color separation/combination system; and a projection lens system for projecting light from the imager to a screen to form an image

Abstract: An enlarging unit comprises a concave Fresnel lens warped convexly toward an image forming unit side, the image forming unit is held between a light transmissible support plate warped convexly toward the image forming unit side and the enlarging unit warped convexly toward the image forming unit side, and peripheries of the support plate and the enlarging unit are fixed or semi-fixed. Thereby, deformation caused when the incident side and emission side micro-lens arrays are molded and deformation due to environmental temperature and humidity change are corrected, and both components are always maintained in close contact.

Abstract: A method of making a lenticular image product comprising: providing a plurality of frames oriented for viewing in a pre-selected direction; rotating each of said frames to a pre-selected angle relative to said pre-selected direction; digitizing each of said frames to create image elements parallel to said pre-selected direction generating a digital lenticular image by multiplexing said image elements of each of said frames; producing a viewable lenticular image from said digital lenticular image by scanning said multiplexed image elements on a recording element; associating said viewable lenticular image or a representation thereof with a lenticular lens element having an array of lenticules with parallel lenticule axis, said image elements being parallel with said lenticular axis; and creating a viewable lenticular image product by rotating said lenticular lens element so that said lenticule axis are at said preselected angle and said lenticular image is oriented in said preselected direction.

Abstract: An illumination optical apparatus has a light source for emitting illumination light, a first lens array having lens cells arranged regularly in a grid-like formation so that the lens cells of the first lens array will individually focus the illumination light incident thereon in different positions corresponding thereto, a second lens array having lens cells arranged regularly in a grid-like formation oriented in a different direction from the grid-like formation in which the lens cells of the first lens array are arranged, with the lens cells of the second lens array disposed in the positions in which the lens cells of the first lens array focus the illumination light, and a polarization separation device disposed between the light source and the second lens array so as to separate the illumination light coming from the light source in such a way that, through each of the lens cells of the first lens array, two components of the illumination light having mutually different polarization planes form two separ

Abstract: A technique for improving properties of polarizing beam splitters and polarizing conversion elements, and a projection display apparatus having high light utilization efficiency using such polarizing beam splitters are provided. A polarizing beam splitter in accordance with the present invention includes a light transmissive substrate having a refractive index ranging from approximately 1.48 to 1.58, and a polarization separating film formed on the light transmissive substrate. The polarization separating film includes a multilayered structural section formed by alternately arranging MgF2 layers and MgO layers. The polarization separating film in accordance with the present invention can improve the transmission property and the reflection property with respect to two types of polarized light.

Abstract: An image display is illuminated by a light source employing a plurality of low power light emitting devices. The lifetime and light intensity of the light sourceare increased by orders of magnitude. The illumination provided by the light source is made uniform to efficiently utilize the light source and so obtain optimum projection results.

Abstract: A method for producing lenticular images is suggested, which improves the image quality of the lenticular images. The images are written with a writing spot which is scanned over a recording material. The shape of the writing spot and at least one component of the recording material influence the image quality of the recorded image. The improvement of the present invention comprises to shape the writing spot or at least one of the contributing components of the recording material to obtain an overall response which is substantially trapezoidal. The summation of the overall responses is free from ripples and thereby improves the image quality.

Abstract: A photographic printer for making 3D pictures or animation pictures from at least two 2D images on lenticular print material. The printer uses a monitor for sequentially displaying 2D images. A projection lens is used to project the displayed 2D images onto the print material. A tilting mechanism is used to tilt the print material for changing the projection angles. In order to correct for the distortion of images projected on the print material due to tilting, the 2D images are geometrically transformed according to the tilting angles. The same printer can be used to make 2D prints on regular photographic paper. The printer can be equipped with a plurality of projection lenses with different focal lengths so that pictures of different magnification factors can be made.

Abstract: A projection exposure apparatus including a light source system, an optical integrator for forming a plurality of light source images, and a condenser optical system for illuminating a target illumination surface in a rectangular or circular arc pattern in a multiple manner. The optical integrator has, from a light source side, a first lens group which has a plurality of first lens element groups each consisting of a plurality of first lens elements, and a second lens group which has a plurality of second lens element groups each consisting of a plurality of second lens elements. The second lens elements are arranged in a one-to-one correspondence with the first lens elements, and dimensions of the lens section of the first and second lens element satisfy a predetermined relations.

Abstract: A television receiver of projection type including a color cathode ray tube having a phosphor face forming a color phosphor pattern, a projection screen, a projection lens for projecting an image on the cathode ray tube on the projection screen, and a prism plate having a plurality of prisms disposed in front of the color cathode ray tube for splitting a light path from the color cathode ray tube so as to shift the images relative to each other by a predetermined distance on the projection screen, wherein the inclination angle of each prism of the prism plate is selected different between at central portion and at peripheral portion.