Abstract: A projecting system includes a light source for emitting light, a color temperature detecting device for detecting a color temperature value of the light emitted from the light source, a control device for storing a plurality of selectable pre-determined color temperature values therein for a user to select a pre-determined color temperature value, an adjusting device, and a light-modulating device. The adjusting device is disposed in a light path associated with the light source. The control device is configured for controlling the adjusting device to adjust transmittance of the light transmitted therethrough so as to adjust the color temperature value of the light to the selected pre-determined color temperature value. The light-modulating device modulates the light to create an image.

Abstract: A display device is revealed. The display device includes a laser source for emitting a laser beam, a pre-optics for processing the laser beam, a light scan member such as a MEMS mirror for converting the processed laser beam into a scanning light beam, and/or a corresponding post-optics. A switch-control beam splitter is disposed on the light path of the laser beam, after the light scan member so as to divide the scanning light beam into a reflected light beam and a transmitted light beam. They are two different light paths and generate a virtual image as well as a real image respectively.

Abstract: An image display apparatus includes a reflection-type image display device providing partial images that constitute an image frame by reflecting light irradiated from a light-emitting unit, and a distributive projector unit displaying the image frame by discretely projecting the partial images onto different positions.

Abstract: An image display apparatus includes an LD for emitting and modulating visible light, an optical scanning device for two-dimensionally scanning the light from the Ld on a screen in synchronism with the LD, an imaging device for picturizing an image of the image displayed on the screen, and an image processor for judging presence or absence of the pointing element such as a finger or fingers which is/are used to point out an optional position on the image based on temporal change of the image picturized by the imaging device. Even when the finger or fingers of a person is/are used as the pointing element, it is possible to judge the presence or absence of the pointing out of the image by the finger or fingers. Thereby, a number of components can be reduced.

Abstract: The invention comprises a system for displaying image elements for an aircraft seat. The system comprises a seat element with a projection device, and comprises an imaging region for imaging an image element. The image projection device is designed such that the image element can be projected on the imaging region.

Abstract: There is provided an optical engine of a projection system comprising: a lamp irradiating light; an illumination unit provided with a plurality of lens through which the light is passed; a composition unit separating and composing the light to form an image signal; an engine base provided with the illumination unit and the composition unit on a top portion thereof; a reinforcing part which is made of a high intensity material and which is provided between the composition unit and the engine base to prevent a deformation of the composition unit; and a projection lens projecting light composed in the composition unit to the screen. Therefore, it is possible to stably embody a high definition image in the optical engine of the projection system.

Abstract: A projection apparatus (10) has an LC modulator panel (60) with photoresponsive layer, segmented into at least first, second, and third portions, each spatially separated. An image writing section (120) forms a first, second, or third image within the corresponding portion of the LC modulator panel by scanning successive lines of image writing light to energize the photoresponsive layer (316). The image writing section has at least one grating electromechanical system for modulating incident emission from a narrow-band light source (70) by providing diffracted and non-diffracted orders and a scanning element for directing a line of light thus formed toward the LC modulator panel to energize the photoresponsive layer. An illumination section (130) directs first, second, and third illumination beams for modulation by the respective portions of the LC modulator panel.

Abstract: Provided are an illumination system capable of eliminating laser speckle and a projection system employing the illumination system. The illumination system includes a laser light source having at least one laser, and a first diffractive optical element to divide a laser beam emitted from the laser light source into a plurality of partial beams and to time-average the partial beams through a periodical movement to eliminate speckle. Accordingly, the illumination system can eliminate speckle of the beams emitted from the laser light source and the projection system employing the illumination system can achieve a high quality image.

Abstract: A projection apparatus (10) has an LC modulator panel (60) with photoresponsive layer (316), segmented into a first, second, and third portion, each spatially separated. An image writing section (120) forms a first, second, or third image within the corresponding portion of the LC modulator panel by scanning successive lines of image writing light to energize the photoresponsive layer. The image writing section has at least one grating electromechanical system for modulating a narrow-band light source (70) by providing diffracted and non-diffracted orders and a scanning element (98) for directing a line of light toward the LC modulator panel to energize the photoresponsive layer. An illumination section (130) directs the illumination beams for modulation by the LC modulator panel. Polarizing beamsplitter (24r, 24g, 24b), polarize and direct the illumination beams toward the LC modulator panel and directs modulated light toward projection lens (32).

Abstract: An illumination system designed to remove laser speckle and a projection system including the same. The illumination system includes a laser light source having at least one laser, a diffractive optical element to divide a laser beam emitted from the laser light source into a plurality of sub-beams and to periodically move in such a way as to temporally average the speckle of the laser beam, and an optical fiber bundle including a plurality of fibers with the same length to divide the sub-beams into smaller sub-beams. The illumination system divides the laser beam emitted from the laser light source into sub-beams and temporally or spatially averages the sub-beams, thereby effectively reducing or removing laser speckle. The projection system employing the illumination system can provide improved image quality.

Abstract: A projection-type display device 1 including a light source 10, an optical integrator 20, dichroic mirrors 30 and 35, a reflecting mirror 36, a relay optical system 40, parallelizing lenses 50B, 50G and 50R, liquid crystal light valves 60B, 60G and 60R, incident side lenses 70B, 70G and 70R, a light-synthesizing cross dichroic prism 80, a relay lens 90, an emergent side lens 95, a liquid crystal light valve 100 and a projection lens 110, and liquid crystal light valve 100 is provided in the rear stage of liquid crystal light valves 60B, 60G and 60R.

Abstract: Disclosed herein is a display device using a single-panel diffractive light modulator. The display device includes a light source unit, a condensing unit, an illumination unit, a diffractive light modulator, a projection unit, a filter unit, and a distortion correcting means.

Abstract: An arc lamp system includes an arc lamp, having a life span, a power supply, and a power control servo. The power supply is electrically coupled to the arc lamp and configured to provide power thereto, and the power control servo is coupled to the power supply, and configured to cause the power supply to provide lower power to the arc lamp at a beginning of the life span, and to provide greater power to the arc lamp toward an end of the life span.

Abstract: The invention provides a two-panel color management system for projection display applications, wherein color sequencing is accomplished using achromatic beam switching and static color separation. In a preferred embodiment, a liquid-crystal polarization switch alternates a polarization of an input light beam between two orthogonal states. A polarization beam splitter directs the beam comprising three primary color components alternately along a first and second paths, wherein first and second different secondary color filters are disposed for forming first and second secondary colored beams, each having two different primary color components. A dichroic color separator alternately receives the first and second secondary colored beams, separates their primary color components and directs them to first and second imager panels. A beam combiner combines the first polarized primary color beam from the first imager and the second polarized primary color beam from the second imager to form a projection beam.

Abstract: At least one exemplary embodiment is directed to a projector which includes several optical elements, reflective devices and beam splitters, arranged to reduce back reflection effects. At least one exemplary embodiment includes a mirror, two beam splitters, three reflection devices, and two optical elements affecting polarization of incident light upon the optical elements.

Abstract: The present invention relates to an illuminator (10, 30, 40) comprising a spatial light modulator (14) including an array of elements (16) each adapted to selectively transmit incoming light without altering the direction of the light, or alter the direction of incoming light; a lamp (12) arranged to illuminate the modulator; a lens (20, 42) for directing unaltered light from the modulator onto an illumination surface (24); and means for forwarding essentially all light altered in direction by the modulator towards the illumination surface.

Abstract: Projection assemblies are provided herein for use in a display system. According to one exemplary embodiment, the projection assembly includes an illumination source and a plurality of co-planar modulator panels. A method of modulating light is also provided herein that includes generating multi-component light, splitting the multi-component light into a plurality of component beams, and modulating the component beams with a plurality of co-planar modulator panels to form a plurality of sub-images.

Abstract: Aspects of the invention can provide a projector that includes three optical modulators which modulate respectively red light, green light, and blue light, a color-synthetic optical system which synthesizes the light modulated by the three optical modulators, and a projection optical system which projects the light synthesized by the color-synthetic optical system. The color-synthetic optical system can include a first reflection film that reflects the green light, and a second reflection film that reflects the blue light, the first reflection film and the second reflection film are arranged in the shape of an X character, and a wavelength in which a reflectance factor of the first reflection film comes to 50% can be longer than a wavelength in which a reflectance factor of the second reflection film comes to 50%.

Abstract: An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based light engine, blue wavelengths may cause a predominate tint in black portions of an image (or an entirely black image is tinted blue), and the absorptive layer is calculated to absorb an amount of blue equivalent to the tint. The absorptive layer is, for example, an unbalanced magenta dichroic, or a yellow filter. The yellow filter may be placed at any point in the light chain, including input/output of a kernel, input/output of a projection lens, or portions of a light engine or display screen. An unbalanced magenta may be constructed by adding a yellow filter to an existing magenta dichroic in the kernel design.

Abstract: An optical device that includes an optical element, an imager, and a prism bracket. The optical element includes an optical element having first and second prisms coupled together. The imager is arranged adjacent to the first prism and configured to receive light from or to transmit light to the optical element, wherein the first prism is spaced between the second prism and the first imager. The prism bracket is coupled between the second prism and the first imager to hold the first imager in a desired positional alignment relative to the optical element. The optical device may further include additional sets of an optical element, imager, and prism bracket, wherein all of the sets are coupled to a color light combiner.

Abstract: The invention comprises a system for displaying image elements for an aircraft seat. The system comprises a seat element with a projection device, and comprises an imaging region for imaging an image element. The image projection device is designed such that the image element can be projected on the imaging region.

Abstract: A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a major cause of image trapezoidal distortion. The rear projection image display apparatus has a projection lens system which includes a first lens group with positive refractive power and a second lens group which further enlarges an image enlarged by the first lens group. The projection lens system enlarges and projects an image displayed on an image display device, on a transmission screen. No reflection mirror is provided between the second lens group and the transmission screen and the image enlarged by the second lens group is directly projected on the transmission screen.

Abstract: A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination light coming from the light source device into a plurality of partial light fluxes; a second lens array having a plurality of second small lenses corresponding to the first small lenses; a superposing optical system that superposes the partial light fluxes coming from the second lens array on regions to be illuminated; a color-separating and guiding optical system that separates the lights coming from the second lens array into lights in a plurality of different colors and guides the separated lights to the regions to be illuminated; a plurality of electro-optical modulation devices each of which modulates the light in the corresponding color of the lights in the plural colors separated by the color-separating and guiding optical system in accordance with image information; a color synthesizing optical system that s

Abstract: A projection apparatus including an illumination system, a light valve, a first optical element, a first projection lens, and a second projection lens is provided. The illumination system is suitable to provide an illumination beam, and the light valve is disposed on a transmission path of the illumination beam. The light valve is suitable to convert the illumination beam into an image beam. The first optical element is disposed on a transmission path of the image beam. A portion of the image beam is reflected by the first optical element, and a remaining portion of the image beam passes through the first optical element. The first projection lens is disposed on a transmission path of the image beam passing through the first optical element, and the second projection lens is disposed on a transmission path of the image beam reflected by the first optical element.

Abstract: A two-panel projection display system includes a color wheel having color filter segments that transmit light having a secondary color, namely cyan, magenta, and yellow, made up of two primary colors. A primary color separator, such as a second color wheel, a transflective dichroic beamsplitter, or a color-sensitive polarizing switch separates the secondary color beam into a first polarized primary color beam and a second polarized primary color beam, which are directed to first and second imager panels. A beam combiner combines the first polarized primary color beam from the first imager and the second polarized primary color beam from the second imager to form a projection beam. Accordingly, any two primary colors can be imaged at the same time enabling the system to be white point balanced.

Abstract: A projection display with a common light source sharing system for improved illumination uniformity is described. The common light source is coupled through a light-dividing prism to multiple integrators. Each integrator is coupled to one or more imaging devices that project image tiles to form a larger composite tiled image.

Abstract: Disclosed herein is a mobile terminal equipped with an optical modulator-based projector. The mobile terminal includes a control system, a projection control system, and an optical modulation system. The optical modulation system produces light and produces an image by modulating the produced light in response to the drive control signal from the projection control system, and scans the produced image onto an internal display unit while projecting the produced image onto the internal display unit.

Abstract: The present invention provides a two-dimensional image forming apparatus which also functions as an illumination apparatus at a low cost, and enlarges the utilization range f a two-dimensional image forming apparatus to a great extent. In a two-dimensional image forming apparatus (10) which includes a light source (1), two-dimensional image forming parts (5a) to (5c), and an enlarging and projection part (6), a rotation mechanism (11) for rotating the light source so that the light emission direction is changed is provided, and the light emitted from the light source is taken out as an illumination light by changing the light emission direction of the light source.

Abstract: A display device using a light modulator and having an improved numerical aperture (NA) of an after-edge lens system is disclosed. The display device includes an illumination lens, a diffractive light modulator, an NA improvement unit, a filter system and a projection system. The illumination lens converts light into linear parallel light, and outputs the linear parallel light. The diffractive light modulator produces diffracted light beams having a plurality of diffraction orders by modulating the linear parallel light incident from the illumination lens according to an external control signal. The NA improvement unit causes + and ? diffracted light beams of the diffracted light beams to come close to each other. The filter system passes only some of the diffracted light beams having predetermined orders, therethrough. The projection system focuses the diffracted light beams onto an object and allows the focused diffracted light to scan the object.

Abstract: A display element having a plurality of pixel portions arranged two-dimensionally with a predetermined pixel pitch and a microlens array including a plurality of microlenses arranged two-dimensionally corresponding to the plurality of pixel portions on an incident side or an emission side of light with respect to the pixel portions, wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch of the plurality of microlenses is set to a pitch smaller than the lens pitch able to substantially equivalently maintain a converging efficiency of a lens of the hyperboloid of revolution and a lens of an ellipsoid of revolution with respect to the incident light and able to maintain a converging efficiency higher than the converging efficiency of the lens of the ellipsoid of revolution or wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch is 20 ?m or less; a display device; and a microlens array.

Abstract: A projector capable of adjusting brightness and brightness uniformity includes a light module, a light pipe, a first lens module, a second lens module and an image module. The light module generates a light ray. The light pipe includes an entrance and an exit. The light ray is converged onto the entrance of the light pipe and outputted through the exit of the light pipe. The first lens module has a first focal surface, which overlaps the exit of the light pipe, and receives the light ray outputted through the exit of the light pipe. The second lens module has a second focal surface and receives the light ray outputted through the first lens module. The image module is disposed on the second focal surface of the second lens module and receives the light ray outputted through the second lens module.

Abstract: The present invention relates to a rear projection type image display device comprising projection lenses (2, 3) for projecting an image displayed on an image display element onto a transmission type screen (6) on a larger scale, an optical path turn-back mirror (7) for turning back halfway a light beam projected from the projection lenses, and a drive circuit for displaying an image on the image display element, that are fixedly housed within a housing (5). When a diagonal size of the transmission type screen (6), the depth of the housing (5), and the length from a lower end of the screen (6) to a lower end of the housing (5), are assumed to be SS (inch), D (inch), and L (inch), respectively, the following conditions are satisfied: SS >40, D?SS/3.0, L?SS/10.9.

Abstract: Exemplary embodiments of the present invention provide an image display device having a functional design and accomplishing high quality and marketability to attract customers' attention. Exemplary embodiments include an independent installation type image display device including a display panel having a transmissive screen, a support frame for inclinedly supporting the display panel so that, when the image display device is erected on a horizontal floor, an angle defined between the display panel and the bottom surface is an acute angle, a projector placed below the display panel to project an image on the screen of the display panel, a storage unit which stores image data of an image to be projected and is mounted to the projector to output the corresponding image data to the projector, and an optical mechanism to direct a projection beam emitted from the projector to the screen from the rear of the display panel to form the image on the screen.

Abstract: The image display device is configured to include the light source including a plurality of semiconductor light-emitting elements, a parallelizing unit including a plurality of cell lenses arranged in a one-to-one correspondence with each of the plurality of semiconductor light-emitting elements, an image display element for forming an optical image, a pair of lens-array groups located between the parallelizing unit and the image display element, and a projection unit for enlarging and projecting the optical image formed on the image display element. Moreover, the plurality of semiconductor light-emitting elements are located at substantially focal points of the cell lenses of the parallelizing unit.

Abstract: Aspects of the invention provide a projector capable of comparatively easily achieving a contrast ratio higher than the original contrast ratio of the liquid-crystal light valve by a simple mechanism. The illumination light modulated by liquid-crystal light valves, i.e., image light, can be combined together in a cross dichroic prism, and then light intensity of suitable pixels is reduced by a proper amount by a liquid-crystal light valve, and then sent to a projection lens. The image light entering the projection lens can be projected to a projection surface. Because the light intensity of the image light formed by the liquid-crystal light valves is appropriately attenuated at suitable pixel areas by the liquid-crystal light valve, image light projection with a contrast ratio exceeding by far the contrast ratio achievable by the liquid-crystal light valves alone is possible due to cumulative light-intensity adjustment.

Abstract: A color prism capable of separating incident light into four color beams and synthesizing incident four-color beams, and a projection-type image display apparatus employing the color prism. The color prism includes: first through third triangular prisms each having two boundary surfaces which face the other two triangular prisms, and an outer surface which transmits or reflects incident light according to an incidence angle of the light; and first through third dichroic filters respectively interposed among the first through third triangular prisms and selectively transmits or reflects incident light according to wavelength so as to separate incident light into first through fourth light beams according to wavelength ranges and synthesize incident first through fourth light beams.

Abstract: A reflection type projector apparatus uses polarized beam filters that are resistant to fluctuations in incident angle as the light beam splitting elements and in which are provided for the blue color beam a blue color use liquid crystal reflection panel, a polarized beam filter, a linear polarization plate, and a ½ wavelength plate arranged at one side face of a cross prism, with a blue color beam emitted toward the blue color use liquid crystal reflection panel. The blue color beam passes through the polarized beam filter, striking the blue color use liquid crystal reflection panel, and is modulated when reflected. The blue color modulated beam is reflected toward the cross prism at the polarized beam filter, and then passes through the linear polarization plate and the ½ wavelength plate, strikes the cross prism, and is projected to the screen by a projection lens.

Abstract: This specification discloses a polarizing. element for dividing light into first and second polarized lights differing in polarized state from each other by a polarizing dividing surface, directing the first polarized light in a first direction, reflecting the second polarized light by a reflecting surface and directing it in the first direction, and varying the polarized state of at least one of the first and second polarized lights to thereby make the polarized states of the first and second polarized lights coincident with each other, characterized in that the polarizing dividing surface is disposed on one surface of a plane parallel plate and the reflecting surface is disposed on the other surface of the plane parallel plate, and the light enters obliquely from the one surface or the other surface. The specification also discloses a polarizing conversion unit provided with such polarizing element, and a projector provided with such polarizing conversion unit.

Abstract: Aspects of the invention can provide a projector can include an illumination device that outputs illumination light, a color separation system that divides the illumination light output from the illumination device into blue light, red light, and green light and guides the blue light, red light, and green light to first to third optical paths, respectively, and first to third light modulation devices disposed in the first to third optical paths to be illuminated by the blue light, red light, and green light. In the projector, a distance from the illumination device to the third optical modulation device can be longer than a distance from the illumination device to the first optical modulation device and a distance from the illumination device to the second optical modulation device, a relay system having a first lens disposed at the light incident side, a second lens disposed at the light exit side, and a third lens disposed between the first and second lenses can be provided in the third optical path.

Abstract: A projection display apparatus that is lightweight and provides bright, high quality images is provided. The projection display apparatus comprising a color separation and synthesis optical system 4, that performs color synthesis, generating an image, after separating light of the three primary colors of determined polarities into the respective three colors, and modulating those three color lights in relation to respective image signals therefor, and a projection lens 106. The color separation and synthesis optical system 4 comprises polarized light separating means 8, 9, 11 and 16 disposed in respective diagonal directions therein and reflecting spatial light modulating elements 12, 13 and 14 disposed to perform light modulation coordinated to an image signal for each respective color, for light separated according to polarization by the four polarized light separating means 8, 9, 11.

Abstract: The invention provides a holder frame, optical device and projector which can prevent the substrate from deviating in position, the substrate from being compressed at the outer periphery and color unevenness from occurring. More particularly, in the four sides of a luminous-flux incident surface of a holder frame, there can be formed a plurality of cutouts extending from a vicinity of an opening to an outer edge of the luminous-flux incident surface and nearly orthogonal to a lengthwise of each side. Also, in the four sides of an accommodating surface of the holder frame, there are formed a plurality of cutouts extending from a vicinity of an opening to an outer edge of the accommodating surface and nearly orthogonal to a lengthwise of each side. The cutouts in each side of the accommodating surface of the holder frame are formed in positions between the cutouts formed in each side of the luminous-flux incident surface of the holder frame as viewed from a side of luminance-flux incidence.

Abstract: The invention provides a fixing plate, optical device and projector capable of preventing against color unevenness occurrence and pixel deviation. Specifically, in each of the four sides of a luminous-flux exit surface of a plate part of a fixing plate, there can alternately be formed a first cutout in a groove form extending from an opening toward an outer edge of the plate part and nearly orthogonal to a lengthwise of each side, and a second cutout in a groove form extending from the outer edge toward the opening and nearly orthogonal to the lengthwise of each side.

Abstract: To provide a projection type video display capable of reliably preventing a double image from being produced. A first light flux producer for producing a first light flux and a second light flux producer for producing a second light flux are arranged on the light emission side of a lamp. The light flux producer comprises a condenser lens, a rod integrator, and a pair of lenses. Lights passing through the pair of lenses are respectively refracted by condenser lenses, and are respectively introduced into first and second areas of a liquid crystal display panel in such a manner as to cross an optical surface in a color separating and mixing sector.

Abstract: To provide an image display device and a projector having a brightness or an excellent utilization efficiency of the light by improving the display performance of a moving picture.

Abstract: An optical projection system has a parallel light source for producing a parallel light beam. A first color splitter splits the parallel light beam into a first color beam and a color mixing beam. The color mixing beam includes a second color beam and a third color beam. A first both-side telecentric group is disposed on a first light path of the first color beam, so as to transform into a first light beam. A second both-side telecentric group is disposed on a second light path of the color mixing beam. A second color splitter is disposed on the second light path to split the color mixing beam into a second light beam and a third light beam. A light-combining unit receives the first, second, and third light beams and combines into a mixed beam. Then the mixed beam is projected.

Abstract: A color projection display device may include SLMs or other panels. One embodiment includes a device for displaying a color image including first and second sequences of temporally-integrateable primary color image components, the device also includes first (209) ans second (206) SLM panels (604, 606), first and second driving circuitry, and first through fourth polarizing beam splitters.

Abstract: A projection apparatus including a polarization conversion system to convert light having a first polarization component; a color recycling system, which separates the light into first and second color lights, to transmit and reflect the first and second color lights; an image forming system including a first reflective panel and a second reflective panel, which respectively modulate the first and second color lights, and a third reflective panel, which modulates the third color light; and an optical path conversion system, which splits the optical paths of fourth and fifth color lights incident from the color recycling system such that the first color light in the fourth color light is directed to the first reflective panel, the second color light in the fifth color light is directed to the second reflective panel, and the third color light in the fourth and fifth color light is directed to the third reflective panel.

Abstract: A projection system projects a pixelized color images onto a display surface. The projection system includes a light source, an interferometric modulator, and a reflective light modulator. The interferometric modulator is configured to modulate the wavelength of light and reflect modulated light toward the display surface. The reflective light modulator is disposed to receive light from the light source and selectively reflect the light toward the interferometric modulator and the display surface.

Abstract: In order to provide a liquid crystal projector that prevents the image burn-in phenomenon or image sticking in a liquid crystal projector of ferroelectric liquid crystal, and moreover, that provides a bright projected image, the polarization directions of linearly polarized light beams that are irradiated upon a liquid crystal display device are switched in synchronization with the alternate reversal of the polarity of the liquid crystal display device, whereby a negative image, which could not be displayed in the prior art, can be converted to a positive image and displayed.

Abstract: A projector for projecting an image to an external screen in which an optical unit, includes rectangular liquid crystal panels disposed such that the short sides thereof are substantially parallel with a plane including principal light beams of the respective color light beams to be composited by a prism. Transmission cables are drawn out from the short sides of the respective liquid crystal panels, and a cooling fan is disposed such that the direction of cooling air is approximately parallel with the long sides of the liquid crystal panels.