Abstract: A display apparatus comprising a light source device, an image data processing module, a light modulation device, and an image synthesizing device. The light source device is configured to emit first light and second light. The image data processing module is configured to receive original image data of an image to be displayed, the original image data of the image to be displayed being image data based on a second color gamut range and comprising original control signal values of m colors of pixels, and the second color gamut range covers a first color gamut range and has a portion beyond the first color gamut range. The image data processing module further maps the original control signal values as m corrected control signal values and n control signal values.

Abstract: A light wavelength conversion element is configured to receive an excitation beam from a light incident side, comprising a substrate and a light wavelength conversion substance. The substrate has a surface facing the light incident side. The surface has at least one microstructure protruded toward the light incident side. The light wavelength conversion substance is disposed on the surface and covers the at least one microstructure. The light wavelength conversion substance is excited by the excitation beam and emits a conversion beam. The excitation beam forms an exciting light spot on the light wavelength conversion substance. The energy density distribution of the exciting light spot has at least one peak value. A position corresponding to the at least one peak value on the light wavelength conversion substance corresponds to a position of the at least one microstructure. Additionally, a projection apparatus is provided.

Abstract: The head-up display device includes a light source; a condensing lens; a lens array diffusing light from the condensing lens; a liquid-crystal display unit emitting light from the lens array as display light; and a reflecting member reflecting the display light emitted from the liquid-crystal display unit and projecting the display light on a windshield. The lens array has, in an emitting surface, a plurality of lens surfaces projecting toward the liquid-crystal display unit and having an aspherical sectional shape, and, in the lens surface, the curvature radius of a part emitting display light to be projected on an upper part of the windshield is smaller than the curvature radius of a part emitting display light to be projected on a lower part of the windshield.

Abstract: An illuminator includes a first laser light source section that outputs a first light flux that belongs to a first wavelength band, a second laser light source section that outputs a second light flux that belongs to a second wavelength band, a third laser light source section that outputs a third light flux that belongs to a third wavelength band and has a polarization direction different from those of the first and second light fluxes, a light combiner that combines the first, second, and third light fluxes to produce combined light, and a predetermined band retardation film on the downstream of the light combiner that changes the phase of a light flux that forms the combined light and belongs to the third wavelength band, and the polarization directions of the light fluxes contained in the combined light are aligned on the downstream of the predetermined band retardation film.

Abstract: A present disclosure relates to a projector including a light source, an excitation light source, a wavelength converter, a collimator system that parallelizes fluorescence outputted from the wavelength converter, a light separator that separates the fluorescence into second light and third light, a correction lens provided in an optical path of the second or third light, a superimposing lens, a light modulator having a plurality of pixels each including first, second, and third sub-pixels, a microlens array including a plurality of microlenses corresponding to the plurality of pixels, and a projection optical apparatus. First light is incident on a first position on the superimposing lens, the second light is incident on a second position on the superimposing lens, and the third light is incident on a third position on the superimposing lens.

Abstract: A projection display for providing virtual display images on a plurality of display planes which are offset to one another, includes a projection unit for producing a projection beam; and an optical imaging element which is designed to direct the projection beam onto a combination surface and to image, depending on the projection beam, the virtual display images into the plurality of display planes. The projection unit has a plurality of transparent display elements which are arranged so as to be spaced apart and one after the other along the beam path of the projection unit.

Abstract: A head up display mirror holder arrangement for a motor vehicle includes a picture generation unit producing a light field. A mirror reflects the light field such that the light field is visible to the driver as a virtual image. A mirror holder has two opposite ends and an activation feature. The two opposite ends are aligned along a rotational axis of the mirror. The mirror holder retains the mirror. Each of two bushings is coupled to a respective opposite end of the mirror holder. A calibration switch has minimum proximity to the activation feature of the mirror holder.

Abstract: A system is provided. The system includes a translucent display positioned such that a first face is a display face and that a second face is a projection face and at least one projector configured to project an image on the second face of the translucent display. The image is displayed on the first face. The system also includes at least one sensor configured to transmit a signal when triggered and a projector controller in communication with the at least one projector and the at least one sensor. The projector controller is programmed to receive a signal from the at least one sensor and instruct the at least one projector to project at least one image on the translucent display in response to the signal from the at least one sensor.

Abstract: A lighting unit includes a light source configured to radiate a light, a circuit board on which the light source is mounted, and multiple stages of condenser lenses configured to condense the radiation light radiated from the light source. A first-stage lens that is located closest to the light source and given a maximum positive power among the multiple stages of condenser lenses has a partition wall portion and a positioning portion. The partition wall portion partitions an accommodation space in which the light source is accommodated in a range from a composite focal point of the multiple stages of condenser lenses to the first-stage lens by projection toward the circuit board side. The positioning portion 222 is provided on the partition wall portion and positioned relative to the circuit board by concavo-convex fitting.

Abstract: A projecting apparatus and a projecting method, relates to the field of projecting technologies. The projecting apparatus includes: a light source (1), a projection film (2) and a lens (3), wherein the projection film (2) and the lens (3) are both located in a light path of the light source (1), a focal length of the lens (3) is greater than 0, and a positional relationship between the light source (1) and the lens (3) satisfies a formula: 0 ? E ? ( 2 ? 1 ? 6 D ) 0 . 8 , wherein E is a distance between the light source and the lens in centimeters; D is the focal length of the lens in centimeters, which solves the technical problem of high costs of 3D protection in the prior art, and can project a pattern on the projection film into a three-dimensional stereo image.

Abstract: A projection system includes a first camera that captures an image of a projection surface, a second camera that is disposed in a position different from the position of the first camera and captures an image, a first light radiator that radiates light having a first optical characteristic onto the projection surface, a second light radiator that radiates light having a second optical characteristic different from the first optical characteristic onto the projection surface, and a detection section that detects a pointing element based on a first captured image captured with the first camera, detects another pointing element based on a second captured image captured with the second camera, and detects a position at which the pointing element is pointing and a position which is located on the projection surface and at which the other pointing element is pointing based on the first and second captured images.

Abstract: Methods and systems may provide for 3D volumetric displays. Such 3D volumetric displays may include a transparent enclosed volume holding a noble gas as a gain medium. Two electrodes positioned on opposing sides of the transparent enclosed volume, may apply a voltage to excite electrons of the gain medium to an excited state. A pump laser may emit a laser beam into the gain medium at a wavelength that has an energy below an absorption line of the gain medium to allow for photon collision while also allowing the laser beam to enter the gain medium. A lens may focus the laser beam to a focused spot within the transparent enclosed volume and move the focused spot as a three-dimensionally scanned voxel to produce a 3D image.

Abstract: A projector comprises a casing, a projection lens module and a light emitting module. The casing comprises a first air inlet and an air outlet. The projection lens module is disposed in the casing and adjacent to the first air inlet. The light emitting module is disposed in the casing and adjacent to the air outlet. The casing comprises a rear cover. The rear cover comprises a second air inlet, the second air inlet corresponds to the light emitting module. A first airflow flows into the casing from the first air inlet to dissipate heat from the projection lens module and the light emitting module, and then flows out of the air outlet. A second airflow flows into the casing from the second air inlet to dissipate heat from the light emitting module, and then flows out of the air outlet.

Abstract: Apparatus and method for designing an optical extender for a vehicle heads up display (HUD). An example vehicle includes a windshield and a HUD system. The HUD system includes an image source to provide a projection image and a main mirror to project the projection image onto the windshield. The image source and the main mirror define a light path. The HUD system also includes an optical extender between the main mirror and the windshield. The optical extender has a multi-polynomial top surface that modifies light in the light path to, when the light in the light path intersects the windshield, create an optical path wherein a virtual image of the projection image is visible from an eyebox defined within a cabin of the vehicle.

Abstract: A projection device includes an illumination system, a light valve, and a projection lens. The illumination system includes a light source, a lens array, a condenser lens, and a wavelength conversion element. The light source is for providing a light beam. The lens array and the condenser lens are disposed on a transmission path of a light beam. The condenser lens is for receiving the light beam passing through the lens array and converting the light beam into a condenser light beam. The wavelength conversion element is for receiving the condenser light beam and converting at least a portion thereof into a converted light beam. The projection device and the illumination system provided by the invention can effectively improve the conversion efficiency of the wavelength conversion element and prevent the wavelength conversion element from damage, and effectively project the converted light beam generated by the wavelength conversion element.

Abstract: A projection device includes a light source, an optical engine and a controller. The light source provides a light beam according to a setting current. The optical engine includes a light combining module, an imaging module and a projection lens. The light combining module receives the light beam to generate an illumination beam. The imaging module includes a prism, a digital micromirror device and a light sensor. The prism transmits a portion of the illumination beam to the light sensor. The digital micromirror device converts the other portion of the illumination light beam into an image beam. The light sensor disposed between the prism and the digital micromirror device receives the portion of the illumination beam to generate a brightness data. The projection lens projects the image beam. The controller dynamically adjusts the setting current to calibrate a color point of the light beam according to the brightness data.

Abstract: The invention provides a lens module. The lens module is disposed on a transmission path of a beam to expand the beam. The lens module includes a first lens assembly and a second lens assembly. The first lens assembly is disposed on the transmission path of the beam, and the first lens assembly has a first equivalent focal length. The second lens assembly is disposed on the transmission path of the beam from the first lens assembly, and the second lens assembly has a second equivalent focal length. The second equivalent focal length is greater than or equal to the first equivalent focal length. The invention also provides a projection device including the lens module. The lens module and the projection device of the invention can provide a projection image with uniform color distribution.

Abstract: Both uniformity of brightness and uniformity of color of the outside world are seen via a waveguide. A video image is reflected by a partial reflection surface inside the waveguide that includes an incident surface on which video image light is incident, first and second internal reflection surfaces that propagate the video image light incident from the incident surface while totally reflecting the video image light, and are substantially parallel to each other. A plurality of partial reflection surfaces that reflect a part of the video image light propagating by being totally reflected by the first and second internal reflection surfaces, output the part of the video image light as output light from the first internal reflection surface to the outside of the waveguide, and transmit the part of the video image light being incident, and are disposed substantially parallel to each other inside the waveguide.

Abstract: In a display device, an irradiation unit includes an imaging optical system. The imaging optical system scans and irradiates a front surface of a screen with light to form an image. The light passing through the screen and output from the screen in a movement direction is incident on a projection unit as incident light. The projection unit irradiates a reflective member with the incident light to allow the reflective member to reflect the incident light to form a virtual image corresponding to the image in a target space. A locus of a focal position of the imaging optical system when the irradiation unit wholly scans the front surface of the screen is within a range between the front surface of the screen at a first position and the front surface of the screen at a second position.

Abstract: A color wheel heat dissipation device and a projection apparatus having the same are provided. The color wheel heat dissipation device includes a housing, a color wheel, a built-in radiator and a fan, wherein the housing includes a first cavity, a second cavity, and a third cavity that are mutually communicated with one another, the first cavity and the second cavity are sequentially arranged in an airflow direction; the built-in radiator is located in the first cavity; the fan is located in the second cavity; and the color wheel is located in the third cavity. The color wheel heat dissipation device and the projection apparatus having the color wheel heat dissipation device can maximally increase the heat exchange rate in the color wheel cavity, improve performance of the color wheel, reduce temperature of the color wheel, thereby achieving the purpose of improving efficiency and service life of the product.