Abstract: The present invention provides an imaging system of a photo-curing 3D printing device. The imaging system comprises a light source, a liquid crystal panel, a first polarized light filter, a second polarized light filter, a focusing lens array, a projection lens, and a controller. The imaging system is characterized in that the focusing lens array is disposed on a light incoming side of the liquid crystal panel; each focusing lens of the focusing lens array is corresponding to each pixel of the liquid crystal panel; each focusing lens can gather light beams irradiating to the corresponding pixels, so that the light beams penetrate a light transmission region of the pixels as much as possible. A deflection lens is arranged on a light outgoing side of the liquid crystal panel; the deflection lens can deflect around at least one rotation axis perpendicular to an optical axis of the imaging system, so as to finely tune positions of images of the light beams projected to the surface of a light-sensitive material.

Abstract: A light splitting apparatus includes a first glass substrate, a second glass substrate and a third glass substrate. The first glass substrate guides a first color light beam of incident light to a display device, and changes a polarization direction of a first intermediate light beam of the incident light to produce a second intermediate light beam. The first color light beam is polarized a first polarization direction. The second intermediate light beam includes a second color light beam polarized in a second polarization direction and a third color light beam. The second glass substrate guides the second color light beam polarized in the second polarization direction to the display device, and changes a polarization direction of the third color beam to a third polarization direction. The third glass substrate guides the third color light beam polarized in the third polarization direction to the display device.

Abstract: A heat transport device includes a loop heat pipe configured in the form of a loop, and a control unit configured to control an amount of heat generated by a heat generating part when the loop heat pipe starts up. The loop heat pipe includes an evaporating unit configured to receive heat of a heat generating part as a cooling target and evaporate a hydraulic fluid, a condensing unit configured to radiate heat and condense vapor obtained by evaporation of the hydraulic fluid, a vapor pipe which connects the evaporating unit and the condensing unit to each other, and a liquid pipe which connects the condensing unit and the evaporating unit to each other.

Abstract: A device for the emission of light, in particular for the generation of an image, the device including at least one light source, at least one heat sink, a diffusor for diffusing and homogenizing the light emitted from the light source and comprises a thermal conduction device, is provided herein. The light source is constructed to be thermally coupled to a heat sink. The thermal conduction device is also constructed to be thermally coupled to a heat sink so that heat generated by the light source is transmitted to the thermal conduction device and from the thermal conduction device to the heat sink. The thermal conduction device is additionally constructed as a diffusor for diffusing and homogenizing the light emitted from the light source.

Abstract: The projection display apparatus according to the present disclosure includes: a light source part; a color separating mirror that separates light emitted from the light source part into a first color light and a second color light; a first light modulation element that modulates the first color light; a second light modulation element that modulates the second color light; a color combining prism unit that combines the first color light modulated by the first light modulation element and the second color light modulated by the second light modulation element; and a projection unit that projects combined light emitted from the color combining prism unit. The color combining prism unit includes four prisms and has two air gap faces that totally reflect or transmit light depending on the angle of incidence.

Abstract: An ultrathin LCD module and a liquid crystal display are provided. The ultrathin LCD module has a printed circuit board, a liquid crystal panel connected with the printed circuit board through at least one flexible circuit board, and an array light source of light emitting diodes disposed between the printed circuit board and the liquid crystal panel, which has a plurality of light emitting diodes and a substrate to carry the light emitting diodes. A projection of the flexible circuit board projected on the substrate is not overlapped with the light emitting diodes.

Abstract: An illumination device 11 has: a light source 1 for emitting polarized light having a Gaussian beam profile and including a first polarized light component and a second polarized light component orthogonal to each other; and a spiral phase element for imparting a phase modulation amount which increases for each predetermined step amount along a circumferential direction about an optical axis OA to the first polarized light component of transmitted polarized light from the light source 1 and making the beam profile of the first polarized light component a Laguerre-Gaussian beam profile, and forming a composite beam having a top-hat-shaped beam profile in which the second polarized light component of the transmitted polarized light from the light source 1 and the first polarized light component having a Laguerre-Gaussian beam profile are synthesized.

Abstract: An electronic device casing can be used in a projector and includes a first casing member and a second casing member. The first casing member includes a first side wall. The first casing member and the second casing member are engaged with each other to form an internal accommodating space. The second casing member includes a second side wall. The first side wall and the second side wall are oppositely disposed to form a narrow passage therebetween. The internal accommodating space is connected to an external space of the electronic device casing through the narrow passage. The narrow passage has a non-straight traveling path. Furthermore, the electronic device can includes an air flow bypass passage near the narrow passage.

Abstract: Provided are a projection type display device and an operation assistance method that enable an operator to enjoy an operation assistance function even in the case of occurrence of abnormality in an optical modulation unit or an image information input unit during operation of a vehicle. A system control unit 47 of a HUD, if sensing abnormality in an optical modulation device 44 and a drive unit 45, stops a light source unit 40 and, furthermore, in the case of image information generated by a projected image information generation unit 52 including image information that calls attention of the operator to the front field of view, displays an alert image based on the image information on a liquid crystal display device 61 in a meter cluster.

Abstract: The first light flux control member comprises: a concave first entrance surface, facing the plurality of light-emitting elements; and a first exit surface, and an outer exit surface. The second light flux control member controls and causes the light exiting from the first light flux control member to become oriented in the direction along the first central axis. In addition, when f represents the focal distance of the first light flux control member, and d represents the distance between the first central axis and the optical axis in the light-emitting element farthest from the first central axis, the surface light source device satisfies ?0.6<d/f<0.

Abstract: In the backlight unit, the polarizing plate causes light oscillating in a direction orthogonal to the reference oscillation direction transmit to the quarter wavelength plate among beams of the light incident from the light collecting member, with the oscillation direction of the light transmitting through the liquid crystal panel as the reference oscillation direction, and reflects light oscillating in the reference oscillation direction from a side of the micromirror array toward the liquid crystal panel. The quarter wavelength plate converts the light incident from the polarizing plate side and transmitting to the side of the micromirror array into the first polarized light, and converts the first polarized light reflected by the mirror array and transmitting toward the polarizing plate into the second polarized light oscillating in a direction identical to the reference oscillating direction.

Abstract: A backlight unit for a holographic display is provided. The backlight unit includes: at least one light source; at least one input coupler; a light guide panel (LGP) that guides light; a first holographic element on a first surface of the LGP; and a second holographic element on a second surface of the LGP, wherein the at least one input coupler is configured to uniformly transmit rays emitted from the at least one light source toward the first holographic element through the LGP, and the LGP is configured to transmit the rays incident from the at least one input coupler toward the first holographic element, and the first holographic element redirects the rays toward the second holographic element, the redirected rays being substantially parallel to one another, and the second holographic element emits rays incident from the first holographic element toward an outside of the LGP.

Abstract: A monocular stereoscopic camera according to the present invention uses a macro lens capable of performing proximity expansion shooting as a third image formation lens assembly or a telephoto lens having, in combination with a second image formation lens assembly, the characteristics of a macro lens. Thus, the monocular stereoscopic camera has an advantage in that the camera can use various first image formation lens assemblies, reduce a vignetting phenomenon, reduce the entire length thereof, remove n adjustment parameter, which is repetitive and replaceable, from among parameters requiring adjustment of an optical axis, and distinguish a parameter to be adjusted during shooting and an adjustment parameter which may be fixed during shooting once after adjustment, from each other. Thus, the camera can be easily and simply manipulated and operated and has a simple structure.

Abstract: The present invention provides interactive glasses including a frame, a lens, and a positioning unit, a processing unit and a display unit all fixed to the frame. The positioning unit is used for obtaining location information of current location of the interactive glasses; the processing unit is used for obtaining a relative location relation between the current location and a target location and the information of a route from the current location to the target location according to the location information of the current location and the target location; and the display unit is used for displaying image information of the route from the current location to the target location. Accordingly, the present invention further provides a navigation system. The interactive glasses can provide route from the current location to the target location for users to enable users to reach the target location quickly.

Abstract: The present invention provides a measuring apparatus comprising: a light source unit; and a sensor unit configured to sense a plurality of properties to be measured with respect to an object by using light emitted from the light source unit, wherein the sensor unit comprises: a first region configured to sense a first property to be measured among the plurality of properties to be measured by sensing the light within a first wavelength range; and a second region configured to sense a second property to be measured among the plurality of properties to be measured by sensing the light within a second wavelength range that is different from the first wavelength range.

Abstract: Provided is an image projection apparatus including: one or more light sources; one or more illumination optical systems; a first reflection-type light valve group including three light valves and being configured to modulate incident light based on first image information; a second reflection-type light valve group including three light valves and being configured to modulate incident light based on second image information; a first prism-type photosynthesizing member having a function of synthesizing, on one optical axis, light that is reflected by the first reflection-type light valve group; a second prism-type photosynthesizing member having a function of synthesizing, on one optical axis, light that is reflected by the second reflection-type light valve group; and a prism-type beam splitter configured to synthesize, on one optical axis, light that has been reflected by the first reflection-type light valve group and light that has been reflected by the second reflection-type light valve group.

Abstract: A visual angle regulator of a Liquid Crystal Display (LCD) is arranged between an LCD panel and a backlight. When the visual angle regulator is applied with a voltage, the LCD is in a narrow visual angle mode. When the visual angle regulator is not applied with a voltage, the LCD is in a wide visual angle mode, which allows the LCD to have the wide visual angle mode and the narrow visual angle mode.

Abstract: An illumination optical system illuminates an image display element and includes a first lens array configured to divide light emitted from a light source, a second lens array configured to receive light from the first lens array, and a condenser optical system configured to guide light from the second lens array to the image display element, and a conjugate point of the image display element is located between an incident surface of the first lens array and an incident surface of the second lens array.

Abstract: A system for producing an output light beam of a given spectrum is provided. The system comprises: a light source; a separator configured to separate an input light beam, from the light source, into a retained light beam directed along a first path and an excess light beam directed along a second path, based on wavelength of the input light beam; an optical power shifter positioned to intercept the excess light beam, the optical power shifter configured to convert the excess light beam into a power-shifted light beam comprising at least some wavelengths and/or power red-shifted relative to the excess light beam; and a combiner positioned to intercept both the retained light beam and the power-shifted light beam, the combiner configured to combine the retained light beam and the power-shifted light beam onto a common path to produce the output light beam.

Abstract: A projection image display device includes: a light source that emits a blue illumination light; a phosphor that produces, in a region irradiated by the blue illumination light, a yellow illumination light including a component in a red band and a component in a green band from a portion of the blue illumination light and that reflects the blue illumination light and the yellow illumination light; and a filter that reflects a portion of the blue illumination light reflected by the phosphor toward the phosphor. The filter reflects the portion of the blue illumination light so as to be imaged at a position displaced from a region on a phosphor surface irradiated by the blue illumination light, and the phosphor produces a yellow illumination light also from the blue illumination light reflected by the filter.

Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a ?/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The ?/4 compensation layer includes a first ?/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second ?/4 compensation pattern which extends in the first direction adjacent to the first ?/4 compensation pattern and overlaps the first right-handed circularly polarizing portion.

Abstract: The present application discloses a liquid crystal display panel having a plurality of pixels for image display, each of which includes a subpixel region and an inter-subpixel region.

Abstract: According to the invention, there is provided a mirror with an image display function including, in this order: an image display device; a ¼ wavelength plate; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a cholesteric liquid crystal layer, and the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region. The mirror with an image display function of the invention is capable of displaying a bright image.

Abstract: A light source is provided which comprises an LED array containing a plurality of LEDs, and a lens array containing a plurality of lenslets. The lens array is aligned with the LED array such that one lenslet is disposed over each LED, wherein each of said plurality of lenslets comprises at least first and second sublenslets having first and second respective optical centers, and wherein at least one of said first and second optical centers deviates from the geometric center of the lenslet.

Abstract: A head-up display far projecting visual information onto a screen includes: a projector, comprising a light source and a light modulation device for generating the visual information. The projector further includes a global radiator for cooling the projector. The projector is arranged adjacent to a kinematic device. The global radiator includes at least partially a material having a thermal conductivity greater than 100 W/(mK).

Abstract: A projection lens included in a projector using laser beams as a light source is provided, the laser beams including as the light source, first blue laser light beams, second blue laser beams, first green laser beams, second green laser beams, first red laser beams, and second red laser beams, which are different in wavelength range. The projection lens has a relative maximum value of a transmittance on an optical axis between a wavelength not shorter than 645 nm and a wavelength not longer than 680 nm.

Abstract: There is provided a color sequential illumination device comprising in series: first and second light sources; a condenser lens; and a grating device. The grating device comprises at least one Bragg grating. The condenser lens directs light from the first and second sources into the grating device at first and second incidence angles respectively. The grating device diffracts light from the first and second sources into a common direction. Desirably, the Bragg gratings are Electrically Switchable Bragg Gratings. In one embodiment of the invention the light sources are Light Emitting Diodes. Alternatively lasers may be used.

Abstract: An adaptive LED multi-module headlamp with integrated dipped beam and high beam includes a dipped beam and high beam following-up adaptive beam pattern control system, a light compensation system, and a color temperature control system; the dipped beam and high beam following-up adaptive beam pattern control system comprising a LED light source module array, the LED light source module array comprising a number of LED light source modules including more than two LED light source modules parallel to each other which forming a direct light source, axes of the more than two LED light source modules paralleling with the center of vehicle body, and including more than one LED light source module arranged outside the direct light source which forming a steering light source, angle between axes of the more than one LED light source module and the center of vehicle body being acute angle, the angle between axes of the LED light module of the steering light source and vehicle body increasing in turn from inside out.

Abstract: An automated luminaire with dual over-sized graphic wheels that can be inserted and positioned into or out of the light path of the luminaire together as a unit and each graphic wheel can be rotated independent of the other wheel.

Abstract: An information processing apparatus includes an acquisition unit configured to acquire information about a projection surface on which a projection unit projects a target image, a storage unit configured to store first information indicating a first position, on the projection surface, of the target image projected on the projection surface by the projection unit in a first projection state, and a control unit configured to control a position, on the projection surface, of the target image to move from a second position on the projection surface where the target image is projected by the projection unit in a second projection state to the first position on the projection surface.

Abstract: According to the invention, there is provided a mirror with an image display function including, in this order: an image display device; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region, and the central wavelength is different from an emission peak wavelength of the image display device by 5 nm or greater. The mirror with an image display function of the invention is capable of displaying a bright image.

Abstract: The present disclosure relates to a system and method of encrypting and decrypting Optical Transport Network (OTN) payload content. A transmitter of the system includes a series of ordered encryption keys and a counter for generating an initialization vector to be combined with one of the encryption keys for encrypting the OTN payload content. A receiver of the system includes a series of ordered decryption keys and a counter for generating an initialization vector to be combined with one of the decryption keys for decrypting the encrypted OTN payload content. The system synchronizes switching, at the transmitter and the receiver, the encryption and decryption keys to the next keys in each series. The system also synchronizes the counters for generating the same initialization vector at the transmitter and the receiver.

Abstract: An illumination optical system includes: a beam splitter located near a conjugate position of a specimen and configured to split beams from a light source into a plurality of groups of beams having different splitting directions around an optical axis; a beam selector configured to select and transmit one group of beams from the plurality of groups of beams and that is rotatable with respect to the optical axis; and a ½ wavelength plate located near the beam selector and rotatable about the optical axis. The rotation angles of the ½ wavelength plate and of the beam selector about the optical axis are respectively set so that the polarization direction of the beam which has passed through the ½ wavelength plate is perpendicular to the splitting direction of the one group of beams that has been selected by the beam selector and split by the beam splitter.

Abstract: An optical light engine includes a pair of lenticular microlenslet arrays (MLAs) located on each side of a polarization converter. Non-polarized light from a source in the engine is focused by the first MLA onto cells of the polarization converter which converts the light to a common state of polarization to increase efficiency and improve contrast in the system. A half wave retarder is included on the polarization converter to change the polarization of any light that is reflected from downstream optical components to match that of the forward propagating light. The second MLA, which includes a relatively large number of microlenslet elements, collects the light from the polarization converter and homogenizes the light to be highly uniform when received at a downstream imaging panel in the light engine such as a liquid crystal on silicon (LCOS) panel.

Abstract: Provided is a forming apparatus including an ejection unit that has an ejection surface from which a droplet of a light curing forming liquid is ejected toward a base surface of a forming base plate and that moves relatively to the forming base plate, an irradiation unit that irradiates the forming liquid ejected on the forming base plate with an irradiation beam to cure the forming liquid and that is provided such that an incident plane defined by an optical axis of the irradiation beam and the base surface intersects with the ejection surface, and a P-polarizing unit that is provided in the irradiation unit and that adjusts the irradiation beam to match P-polarized beam parallel to the incident plane.

Abstract: An imager system and a display system for a vehicle are provided. The imager system includes at least one imager configured to capture a multi-focus image having depth data. The display system includes at least one display assembly configured to display a multi-focus image having depth data.

Abstract: A projection display device includes a plurality of reflective liquid crystal panels, a plurality of polarizers, and a combining optical system. The combining optical system includes a first incident surface to which first color light emitted from a first reflective liquid crystal panel and reflected by a combining surface of the combining optical system is incident and a second incident surface to which second color light emitted from a second reflective liquid crystal panel and passing through the combining surface is incident. The polarizes include a first polarizer, which reflects the first color light to the first incident surface, and a second polarizer which reflects the second color light to the second incident surface. An alignment direction of the liquid crystal of the first reflective liquid crystal panel is orthogonal to an alignment direction of the liquid crystal of the second reflective liquid crystal panel.

Abstract: A light source device includes a light source array including at least one light emitting part, a collimating optical system that receives a light beam bundle emitted from the light source array, a first lens array including a plurality of first small lenses that receives the light beam bundle having passed through the collimating optical system, and a second lens array that is disposed in a subsequent stage of the first lens array and includes a plurality of second small lenses corresponding respectively to the first small lenses. The planar shape of the light emission area of the light emitting part has a short-side direction and a longitudinal direction. The planar shape of the second small lens has a longitudinal direction. The short-side direction of the light emission area crosses the longitudinal direction of the second small lens.

Abstract: The cooling device of the present disclosure has a thermally conductive base that is thermally connected to a heat-generating section, a heat pipe section embedded in the base, and a fin section that has a plurality of fins and is connected to the base in a way that the fin section covers the heat pipe section.

Abstract: The present invention provides a laser spot light with twinkling function including a laser head, a body case defining an opening, a heat radiator supporting the laser head and fixed within the body case, a light baffle configured between the opening and the laser head, a first grating has a star pattern configured between the light baffle and the laser head, a second grating has a pattern of figures configured between the first grating and the laser head, a motor, a gearbox driven by the motor and configured to drive the light baffle to rotate or translate. The light baffle defines a plurality of through holes. The laser spot light of the invention utilize a motor driving a light baffle to rotate or translate, such that the static light spots generated by the first grating are blocked and unblocked alternately, resulting a lot of twinkling light spots.

Abstract: An image reading device, which is included in an image forming apparatus, includes a first transparent body, a second transparent body, a holding body, and a reading body. The second transparent body is disposed separated from and inclined at a predetermined angle to the first transparent body. The holding body holds the first and second transparent bodies. The reading body moves in a sub-scanning direction along the first and second transparent bodies. The holding body includes a flat face and a frame-shaped face. The flat face is contiguous to the first transparent body on a same plane and smoothly connected with the second transparent body. The frame-shaped face projects outwardly beyond the second transparent body facing the reading body. The reading body moves and contacts the first transparent body and the holding body, and moves with a gap relative to the second transparent body.

Abstract: A light-emitting diode (LED) projector includes an LED display panel and a projection lens arranged in front of LED display panel and configured to collect and project light emitted by the LED display panel. The LED display panel includes an LED panel and a micro lens array arranged over the LED panel. The LED panel includes a substrate, a driver circuit array on the substrate and including a plurality of pixel driver circuits arranged in an array, and an LED array including a plurality of LED dies each being coupled to one of the pixel driver circuits. The micro lens array includes a plurality of micro lenses each corresponding to and being arranged over at least one of the LED dies.

Abstract: A projector includes a cooling fan that discharges cooling air toward a liquid crystal panel as a target to be cooled, a liquid crystal panel frame that holds the liquid crystal panel, and a turbulence generator that is disposed at an upstream-side end portion of the liquid crystal panel in relation to the cooling air, converts the cooling air into turbulence, and causes the turbulence to flow toward the liquid crystal panel, and the turbulence generator includes an inclined section having an inclined surface and a plate-shaped protruding section formed on the inclined surface and inclined by an inclination angle with respect to a direction in which the cooling air flows into the turbulence generator.

Abstract: The optical apparatus includes multiple reflective light modulators, an illumination optical system and multiple dichroic surfaces separating a light flux from the illumination optical system into multiple color lights to introduce them to the light modulators and combining the multiple color lights reflected by the light modulators. The optical system includes a condenser lens disposed between an area in which light source images are formed and the multiple reflective light modulators. The light modulators are arranged such that their long sides are parallel to a first section, and a condition of f/D1>f/D2 is satisfied where f represents a focal length of the condenser lens, D1 and D2 represent maximum effective widths of the areas in which the light source images are formed in the first section and in a second section parallel to an optical axis and orthogonal to the first section.

Abstract: A display apparatus comprises a display panel and a reflection member. The display panel comprises an array of pixels, the array having a quadrangular shape. The reflection member is disposed in a position not to overlap at least a portion of the array when viewed in a normal direction substantially perpendicular to a major surface of the display panel, the reflection member being configured to reflect light that is emitted from the display panel in a direction slanted with respect to the normal direction. The combination of light emitted from the display panel in the normal direction and the reflected light is configured to form an image having a shape other than a quadrangular shape.

Abstract: Provided is a directional backlight unit. The directional backlight unit includes a source light unit configured to generate dot source light, a linear source light generator configured to separate a plurality of source lights, which are output in a direction vertical to a line type output surface, from the dot source light according to different grating periods and generate the separated plurality of source lights as linear source lights, and a light guide panel configured to output backlight, which has a form of flat source lights and includes the plurality of source lights, in a direction vertical to a plate type output surface according to the different grating periods. The linear source light generator includes an incident surface on which the dot source light is incident and the line type output surface on which a plurality of grating patterns having the different grating periods are provided.

Abstract: A highly-reflective liquid crystal on silicon (LCOS) panel includes pixel electrodes on a substrate, each pixel electrode having a top surface with a first reflectivity. A continuous reflective coating covers the pixel electrodes and substrate surfaces therebetween, forming a plurality of coated pixel electrodes having an enhanced reflectivity that exceeds the first reflectivity. A method for increasing pixel reflectivity in a LCOS panel includes depositing a continuous reflective coating covering both (1) a plurality of pixel electrodes on a substrate and (2) a plurality of inter-pixel substrate surfaces, and depositing a layer on the continuous reflective coating.

Abstract: This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, which is provided with a polarizing beam-splitter array in which polarizing beam splitters having polarization separation layers and reflecting prisms having reflective layers are bonded together in alternation, said polarizing beam splitters and reflecting prisms are bonded together by first adhesive layers each comprising a silicone adhesive.

Abstract: A projector includes a casing having a top plate and a bottom plate, an optical engine disposed in the casing and between the top and bottom plates, and a plurality of heat sinks disposed around the optical engine. The top plate and the bottom plate have a plurality of top holes and bottom holes, respectively. Each heat sink has a plurality of fins and a plurality of air channels formed between the fins, wherein the top holes are aligned and communicate with the bottom holes through the air channels straightly.

Abstract: An array substrate and a fabrication method thereof, and a display device and a driving method thereof are provided. The array substrate includes a gate line, a data line, and a pixel electrode disposed within a pixel region defined by the gate line and the data line intersecting with each other. The array substrate further includes an additional electrode disposed between at least two adjacent pixel electrodes.