Abstract: A heliostat optimized to be positioned near a skylight or other aperture is disclosed. The heliostat comprises a plurality of reflective elements arranged in a substantially planar array, each element being mounted so as to be rotatable about a longitudinal axis of rotation. A first motor rotates the array about an axis substantially perpendicular to the plane of the array; and a second motor rotates the reflective elements about their respective axes of rotation. A processor provides control signals to operate the first motor as required to orient the array such that the respective axes of rotation of the reflective elements are substantially perpendicular to an azimuth to the sun and to operate the second motor as required to rotate the reflective elements about their respective axes of rotation to position the reflective element to reflect the sun's light to a target area.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: A projector includes a light exit adjustment mechanism that adjusts (sets) a light exit angle to be used for each of component light fluxes IL that exit from self-luminous devices disposed in a plurality of positions in a light emitter and a circuit apparatus that is a light controller that controls a light exit position and the light exit angle of each of the component light fluxes IL that exit out of the light exit adjustment mechanism in accordance with a projection area PD that is irradiated with the component light fluxes IL having passed through the light exit adjustment mechanism. Under the control of the circuit apparatus, the light exit adjustment mechanism allows the component light fluxes that form image light to exit from a plurality of positions at angles different from each other to perform simultaneous or concurrent projection on the projection area.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: A projector laser light source includes two laser point sources, two lens groups, a color wheel, a reflector, a yellow reflector, a green reflector, and an integration rod. The color wheel includes a yellow phosphor layer, a reflective layer, and a green phosphor layer. The integration rod collects light focused on a third position. The positions of yellow phosphor layer and the reflective layer respectively correspond to a fourth position in a first timing and a second timing. Laser emitted by the laser point sources is focused on the third position and the fourth position by two optical Fourier transforms performed by the lens groups, and the laser point sources and the lens groups are combined with the specially designed optical configuration of the green phosphor layer, the reflector, the yellow reflector, and the green reflector. Therefore, two sets of three primary light sources are focused on the third position.

Abstract: A color splitting/combining prism splits apart illumination light from a projector and combines together projection light from the projector. A part of the illumination light that is not used as the projection light passes through the color splitting/combining prism as OFF-light via an image display element in a direction different from the projection light. The color splitting/combining prism includes a dichroic film of which a cutoff wavelength, at which the dichroic film exhibits a transmittance of 50% when splitting two different colors between reflection and transmission, is provided in a wavelength range in which wavelength separation is possible for all of the illumination light, the projection light, and the OFF-light that are incident at different incidence angles respectively.

Abstract: A system for dynamically projecting a logo onto a surface includes a light source, moveable lenses, and an actuator. The light source emits light toward the surface. The lenses are positioned with between the light source and the surface, with each lens having multiple transparent portions configured to permit some of the emitted light to pass through the lens in a corresponding light pattern. Each corresponding light pattern forms a different part of the logo. The actuator moves the lenses with respect to the emitted light in response to a control signal to thereby cause projection of the logo onto the surface. A vehicle includes a body having a door, road wheels in contact with a road surface, and the system which projects the logo onto the road surface proximate the door. The controller may be programmed to execute a method for projecting the logo.

Abstract: A display device is provided. The display device includes a projection lens, a Fresnel lens, an angle magnifying screen, a vertical diffuser and a first micro-deflector. The projection lens is configured to provide an original image. The first micro-deflector is provided between the Fresnel lens and the angle magnifying screen, and the angle magnifying screen is provided between the first micro-deflector and the vertical diffuser. The first micro-deflector is configured to redirect the original image into a first perspective image and a second perspective image. A perspective direction of the first perspective image differs from a perspective direction of the second perspective image.

Abstract: An image projection device includes: an image generating unit that includes an optical modulation element generating an image using light emitted from a light source; an illumination optical unit that includes one or more optical elements guiding the light emitted from the light source to the image generating unit; a projecting unit that projects the image generated by the image generating unit; a first control unit that performs control to move the image generating unit movable with respect to the illumination optical unit; and a second control unit that performs control to move an illumination area indicating an area illuminated with the light guided to the image generating unit by the illumination optical unit according to a movement amount of the image generating unit.

Abstract: This invention overcomes disadvantages of the prior art by providing a system and method that allows for the calibration of a display system using one or more cameras whose lenses are not modeled, or are modeled with limited accuracy, and are potentially incapable of imaging the entire projector system. The illustrative system and method generally relies on well-established models of the projectors, rather than well-established models of the cameras. Illustratively, the cameras serve mainly to map the projectors into one coordinate system, where the overlap between the projectors can be established very precisely using a camera, even if the model of the camera lens properties is not known, or known only minimally.

Abstract: The present invention discloses a restoration solution for cine film bubble and a restoration method. The restoration solution comprises 100 parts by volume of n-butanol, 60 to 120 parts by volume of lacquer thinner having 5% by mass of ethyl cellulose, 8 to 20 parts by volume of diphenyl isooctyl phosphite, 2 to 10 parts by volume of bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, and 2 to 15 parts by volume of petroleum ether. The present invention integrates micro-restoration, bubble puncture and optical filling, and effectively restores a bubble having a diameter of 0.1 mm to 1 mm generated between a film base layer and an emulsion layer of a cine film. The present invention has advantages of simple method of operation, low cost and good controllability.

Abstract: A light source device includes a light source section adapted to emit excitation light, a lens array adapted to divide the excitation light into a plurality of partial light beams, a light collection optical system adapted to collect the excitation light divided into the plurality of partial light beams, and a light emitting element adapted to emit fluorescence by being excited by the excitation light.

Abstract: Embodiments of the present invention provide an imaging system, including: a first polarization element having a first polarization direction; a second polarization element having a second polarization direction; a third polarization element, where the third polarization element has multiple areas that respectively correspond to multiple pixel positions, each area in the multiple areas consists of a first semi-area and a second semi-area; a first projection device, projecting an image onto the multiple areas by using the first polarization element and based on the multiple pixel positions; and a second projection device, projecting an image onto the multiple areas by using the second polarization element and based on the multiple pixel positions. In the embodiments of the present invention, images from multiple views may be presented, by using a polarization element, in areas corresponding to pixel positions, which, therefore, can improve imaging resolution.

Abstract: A laser light source (300), a wavelength conversion light source, a light combining light source, and a projection system. The laser light source comprises a laser element array, a focusing optical element (33), a collimation optical element (34), an integrator rod (36) for receiving and homogenizing a secondary laser beam array (382), an angular distribution control element (35) disposed on the light path between the laser element array and the integrator rod (36) for enlarging the divergence angle of the laser beam array (382) in the direction of the short axis of the light distribution, such that the rate between the divergence angle of each of the secondary laser beam that enters the integrator rod (36) in the direction of the short axis of the light distribution and the divergence angle in the direction of the long axis is greater than or equal to 0.7.

Abstract: A projector includes a projection section that projects a plurality of patterns having lightness values different from each other, an imaging section that captures an image of the plurality of patterns projected by the projection section, and a projection state adjustment section that adjusts, based on any of the plurality of patterns captured by the imaging section, a projection state in which the projection section performs projection.

Abstract: A method, system, and/or computer program product enables the sharing of an overlapping area on a shared projection. A system detects an overlapping area on a shared projection, which presents content from a first projection and a second projection. A computing device identifies any redundant resources, which perform the same function as one another, in the first projection and the second projection. A consolidated resource, which provides the same function as the redundant resources, is defined and/or created, and then displayed in the overlapping area.

Abstract: A projector includes a light detector that detects light brightness information on the brightness of light emitted from a light source and an adjuster that corrects the light brightness information detected with the light detector and adjusts the output from the light source based on the corrected light brightness information.

Abstract: An electronic device including a projection unit, an ambient light sensor and a processing unit is provided. The projection unit has a projection lens fixed on a side surface of the electronic device. The ambient light sensor is fixed on the side surface of the electronic device. The processing unit is configured to: control an average brightness of a screen projected by the projection unit as a first brightness value, and control the ambient light sensor to sense to derive a first measured brightness value; control an average brightness of the screen projected by the projection unit as a second brightness value, and control the ambient light sensor to sense to derive a second measured brightness value; calculate an ambient contrast ratio according to the first measured brightness value and the second measured brightness value; and adjust a projecting setting of the projection unit according to the ambient contrast ratio.

Abstract: This disclosure describes various modules that can provide ultra-precise and stable packaging for an optoelectronic device such as a light emitter or light detector. The modules include vertical alignment features that can be machined, as needed, during fabrication of the modules, to establish a precise distance between the optoelectronic device and an optical element or optical assembly disposed over the optoelectronic device.