Abstract: A projection apparatus projects an image on a screen based on input data including information on absolute luminance. The projection apparatus includes: a peak luminance value acquisition unit configured to acquire a peak luminance value on the screen when the projection apparatus projects an image on the screen at a maximum output gradation value; a reference luminance value setting unit configured to set a reference luminance value to be higher than the peak luminance value; a relation information setting unit configured to set, based on the reference and peak luminance values, relation information indicating a relation between an output gradation value and a light output value for displaying an output image; an output gradation value setting unit configured to set an output gradation value based on the input data and the relation information; and an output control unit configured to output an image based on the output gradation value.

Abstract: A projection system can include a projector, a screen, a spine, a base, a projector shroud, and a shelf. In some embodiments the spine is made of steel piping. In some embodiments, the spine is hollow and can accommodate a first cable. In some embodiments the screen is an ALR screen. In some embodiments, the system utilizes an ultra-short throw projector lens. In some embodiments, the base is a steel plate. In some embodiments, the projector system includes a counterbalance. In some embodiments, the projector shroud and/or shelf is/are configured to increase ventilation and/or act as heat sink(s). In some embodiments, the projection system includes a remote-control extender.

Abstract: A display system defining an expected position for a user with respect to a screen having first and second segments positioned so as to never simultaneously fall at least partially within a targeted field of view when the user is at the expected position, the system comprising: an image generator paired with a first projector covering the first segment and a second projector covering the second segment, the image generator being configured to generate a first image to be projected on the first segment and a second image to be projected on the second segment; a first module for determining that the first segment falls at least partially within the targeted field of view; and a second module for controlling hardware resources of the image generator to prioritize the generation of the first image when the first segment falls at least partially within the targeted field of view.

Abstract: An optical deflection apparatus includes an optical deflection part configured to deflect light incident on a reflection surface by swinging the reflection surface about a swing axis, and a light transmission plate configured to transmit the light deflected by the optical deflection part, wherein an inclination angle of the light transmission plate with reference to a reference surface is equal to or greater than twice a maximum swing angle of the reflection surface with reference to the reference surface.

Abstract: A method for controlling a laser pointer projection of a pet companion robot device to interact with a pet includes the steps of: determining a focal length 1 of the camera; determining a height difference ?y between the at least one laser pointer steering motors of the laser pointer and the camera; determining a horizontal viewing angle ? of the camera, a corresponding horizontal viewing range is (??/2, ?/2); determining a vertical viewing angle ? of the camera, a corresponding vertical viewing range is (??/2, ?/2); determining whether the touch screen of the wireless remote-control device is touched; when the touch screen of the wireless remote-control device is touched, determining the corresponding coordinates (i, j); calculating an angular difference ?? between the camera and the at least one laser pointer steering motors; and calculating a horizontal steering motor rotation angle ?x; calculating a vertical steering motor rotation angle ?y.

Abstract: An optical element includes a first light-transmissive member made of a first resin and having a first surface having an aspheric shape and a first joint surface provided on the side opposite from the first surface, a second light-transmissive member made of a material different from the material of the first light-transmissive member and having a second joint surface, and a first joining member and a second joining member that join the first joint surface and the second joint surface to each other. The first joining member is made of a silicone adhesive and disposed in the smaller one of effective diameter regions of the first light-transmissive member and the second light-transmissive member. The second joining member is made of an adhesive having adhesiveness higher than the adhesiveness of the silicone adhesive and is disposed outside the first joining member and outside the smaller effective diameter region.

Abstract: A control device configured to communicate with a first projector which projects a first image in a first projection area, and a second projector which projects a second image in a second projection area having a first overlap area overlapping the first projection area to make the first projector and the second projector perform an edge blending process includes a reception section for receiving input of designation information including a direction in which an overlap width, a generation section for generating first overlap information including information representing first side in the first overlap area and information representing the overlap width of the first overlap area, and second overlap information including information representing second side in the first overlap area and the information, and a transmission section for transmitting the first overlap information to the first projector, and the second overlap information to the second projector.

Abstract: A method for projecting onto a real workpiece an image calculated on the basis of a digital mockup recorded on a digital information server associated with the real workpiece, for the viewing of the workpiece under augmented reality, comprises the following steps: capture by a camera of the image of the real workpiece, real-time alignment of the reference frame associated with the digital mockup with the reference frame of the video capture system and the reference frame of the real workpiece, comprising a step of reprocessing of the image calculated as a function of the topology of the digital mockup and as a function of the orientation of the projection means with respect to the real workpiece.

Abstract: A laser source includes a light-emitting assembly, a phosphor wheel, a converging lens group, and a combining component. The combining component is disposed between the light-emitting assembly and the converging lens group. The combining component has a plurality of light reflecting regions and a plurality of laser transmitting regions, and the plurality of light reflecting regions and the plurality of laser transmitting regions are alternately arranged. The plurality of laser transmitting regions are configured to transmit the laser beam emitted by the light-emitting assembly, and the plurality of light reflecting regions are configured to reflect a laser beam reflected by the laser-reflecting region of the phosphor wheel and a fluorescent beam excited by the fluorescence-exciting region of the phosphor wheel toward a beam outlet of the laser source.

Abstract: An image display apparatus according to an embodiment of the present technology includes: a light emission unit; and a polarization conversion element. The light emission unit emits image light. The polarization conversion element has an incident surface, converts a polarization state of the image light that enters the incident surface, emits the converted light as image light in an unpolarized state, and is configured such that conversion properties of the polarization state are non-uniform in the incident surface. As a result, it is possible to sufficiently depolarize the image light and display a high-quality image. In addition, it is possible to reduce uneven polarization and speckles.

Abstract: A projector is configured to, in response to a temperature detection value acquired from one or more temperature detection sensors that detect a temperature of a light source unit reaching a set value, reduce a current ratio flowing through the light source unit; and in response to the reduced current ratio falling below a first set ratio, execute a first process.

Abstract: An information processing apparatus includes a recognizer, based on captured image information generated by capturing a region on which a first image including an individual image is projected from a projector, to recognize an obstacle between the region and the projector, an identifier, when the obstacle is recognized, to identify, based on first image information indicating the first image and a recognition result by the recognizer, the individual image of which projection is blocked by the obstacle as a specific image, a decider to decide changing a first position in the region on which the specific image is projected to a second position in the region toward which projection of the specific image is not blocked by the obstacle, and a generator to generate second image information indicating a second image including an auxiliary image teaching association between the specific image located at the second position and the object.

Abstract: An extreme off-axis image projection system substantially compensates for image-quality-degrading aberrations typical to off-axis imaging systems. This is accomplished through the use of a free-form mirror in conjunction with both spherical and aspherical refractive elements and an off-axis placement of the input image source. In some embodiments, the off-axis image projection system contains a free-form mirror and a projection lens system with multiple lenses. The projection system projects light from an image source onto a surface (aka, projection surface). The projection surface is both close to the projector (in z) and extends away from the projector (in x and y).

Abstract: The invention relates to an illumination arrangement comprising a light-emitting optoelectronic element and an optical device for beam conversion of electromagnetic radiation generated by the light-emitting optoelectronic element. The light emitting optoelectronic element comprises a plurality of emission areas arranged in matrix form; and each emission region is associated with a main beam direction. At least a portion of the emission areas is arranged such that the centers of the emission areas lie on a curved surface.

Abstract: A wavelength conversion device, adapted for converting the wavelength of an incident illumination beam, includes a substrate and a wavelength conversion component. The wavelength conversion component is disposed on the substrate and includes a wavelength conversion layer and at least two wavelength conversion spoilers. The at least two wavelength conversion spoilers are disposed on the wavelength conversion layer, protrude from the wavelength conversion layer, and expose part of the wavelength conversion layer, and the height of each of the at least two wavelength conversion spoilers is less than half of the distance between the at least two wavelength conversion spoilers. The wavelength conversion device in the disclosure has good heat dissipation efficiency. A projector including the wavelength conversion device is further provided in the disclosure. Manufacturing methods of the wavelength conversion device are further provided in the disclosure.

Abstract: The present application provides an optical system and a projection device. The optical system includes a display unit, a first lens group, a second lens group and a reflector which are sequentially arranged along a light transmission direction. The first lens group has a positive focal power, the second lens group has a negative focal power, a total of focal powers of the second lens group and the reflector is positive. A distance from a side of the first lens group close to the display unit to another side of the second lens group far away from the display unit is T0, a distance from the side of the second lens group far away from the display unit to the reflector is T, and T0/T is greater than or equal to 0.8 and less than or equal to 1.1. The optical system provided by the present application is small in size and portable.

Abstract: A wavelength conversion element includes a rotatable disc, a first spoiler structure and a second spoiler structure. The rotatable disc has a supporting surface and a back surface opposite to the supporting surface. The first spoiler structure is disposed on the supporting surface and arranged along a first track surrounding a center of the rotatable disc. The second spoiler structure is disposed on the back surface and arranged along a second track surrounding the center. A centroid of at least one of the first spoiler structure and the second spoiler structure is deviated from the center. A projection device adopting the aforementioned wavelength conversion element is also provided. The wavelength conversion element of the invention can reduce the initial unbalance and the projection device of the invention can improve the durability.

Abstract: This application provides an ultra-short-throw picture and screen alignment method which includes that: a first lateral projected image and a second lateral projected image are acquired by two cameras when an ultra-short-throw projector projects a picture; image processing is performed on the first lateral projected image and the second lateral projected image to obtain a projection position in a projection area and a screen position in a screen area; and the picture is adjusted according to the screen position and the projection position, so that a position of an adjusted projection picture and a target position coincide. In this application, the projected images are acquired by the two cameras, thereby ensuring acquisition of complete images.

Abstract: A projection device, including an illumination light source, an electrochromic module, at least one light valve, and a projection lens, is provided. The illumination light source provides an illumination beam. The electrochromic module is disposed on a transmission path of the illumination beam. The electrochromic module includes at least one electrochromic element, and sequentially maintains or filters the illumination beam to provide a plurality of color beams. The at least one light valve is disposed on the transmission path of the color beams transmitted by the electrochromic module to convert each of the color beam into an image beam. The projection lens is disposed on a transmission path of the image beam to project the image beam out of the projection device. The projection device and the use method thereof provided by the disclosure may filter the color light output or the color space of a display image.

Abstract: An image display apparatus according to one embodiment of the present disclosure includes: an output section that outputs projection light along a predetermined axis; an irradiated member to be irradiated with the projection light; and a first optical member that is disposed downstream of the irradiated member on a light path of the projection light, and reflects or diffuses a portion of the projection light that has transmitted through the irradiated member.