Abstract: An optical device is provided. The optical device includes a fluorescent wheel, a first light source engine and a second light source engine. The fluorescent wheel includes a fluorescent powder area. The first light source engine provides a first light beam, wherein the first light beam forms a first light spot on the fluorescent powder area of the fluorescent wheel. The second light source engine provides a second light beam, wherein the second light beam forms a second light spot on the fluorescent powder area of the fluorescent wheel, and the first light spot is separated from the second light spot.

Abstract: According to the present invention there is provided a method of reducing speckle effects in a projected image which is displayed on a display surface, comprising the steps of transmitting an input light beam to a first interferometer, generating a plurality of primary transmit beams at the first interferometer using the input light beam, using the plurality of primary transmit beams to generate interference fringes at a display surface.

Abstract: An illumination apparatus includes an illumination optical system, a first light source unit that includes a first solid-state light source, a second light source unit that includes a second solid-state light source with a characteristic different from that of the first wavelength conversion element, an optical path combining system that includes a first light guide surface, and a second light guide surface. The first light guide surface viewed from an optical axis direction of the illumination optical system does not overlap the second light guide surface and is provided at a position different from that of the second light guide surface. The optical path combining system includes a first condenser optical system, and a second condenser optical system. A predetermined condition is satisfied.

Abstract: The patent discloses projection display equipment which comprises a shell and a detachable shell cover, wherein a light source device, an optical conversion device, a driver board provided with a video input interface, a power circuit board provided with a power interface, and a loudspeaker are arranged in the shell, a front air outlet and a rear air outlet are formed in the side faces of the shell, and supporting feet are arranged at the lower end of the shell; the light source device is connected with the driver board and the power circuit board through wires; the driver board and the power circuit board are connected through a wire; the loudspeaker is connected with the power circuit board through a wire; the light source device is connected with a radiator; a ventilating fan is arranged beside a light source lamp circuit board, the power circuit board and the loudspeaker.

Abstract: [Object] To obtain output light with higher quality. [Solution] Provided is a light source device including: at least one light source unit (110) that emits substantially parallel light in a predetermined wavelength band; and a light guide unit (120, 130) that guides the light from the light source unit (110) toward a light collection spot (143). The light from the light source unit (110) is sequentially reflected by a concave mirror (121) and a convex mirror (122) and is guided toward the light collection spot (143) in the light guide unit (120, 130).

Abstract: A projector includes a holding casing having a hole structure, a projection lens movably disposed through the hole structure, a containing casing detachably fixed to the holding casing for forming a containing space, an image projection module disposed in the containing space, and a flexible washer. A first engaging structure is formed on an external surface of the projection lens. The flexible washer jackets the projection lens and has first and second ring structures and a connection ring structure formed therebetween. The first engaging structure is engaged with the second engaging structure of the first ring structure for positioning the first ring structure on the projection lens. The second ring structure is clamped between the holding casing and the containing casing for sealing the containing space cooperatively with the connection ring structure and the first ring structure when the containing casing is fixed to the holding casing.

Abstract: The present disclosure relates to a method and system for optimizing a projector for projection of content. In one embodiment the method includes receiving by a processing element a plurality of test images corresponding to test patterns projected by the projector on a projection surface, where each of the test patterns include at least two points, comparing by the processing element the plurality of test images to assess one or more projector characteristics related to a distance between the two points, generating by the processing element a projector model representing the one or more projector characteristics, and utilizing the model to determine a projection path of the projector for the content.

Abstract: An embodiment provides an electronic device, including: a support arm; a base portion connected to one end of the support arm; a head portion connected to the other end of the support arm; a projector disposed within the head portion; and a projector adjustment element that adjusts an image projected by the projector; wherein a portion of the projector adjustment element is exposed on an underside of the head portion. Other embodiments are described and claimed.

Abstract: The present disclosure provides a projection image correcting method and a projection apparatus. The method includes: receiving real-time brightness values of M sub-images in a current to-be-displayed image, the real-time brightness values being acquired by a plurality of sensors arranged on a reflector which is located opposite to a projection lens, and obtaining a brightness adjusting value of a j-th sub-image in the current to-be-displayed image according to the real-time brightness values of the M sub-images. Adjustment is made, in combination with brightness adjusting values obtained from the current image to be displayed, to brightness values of each sub-image in an image to be displayed after the current to-be-displayed image, thereby making brightness of displayed images uniform, and improving the projection image quality.

Abstract: The present invention provides a performance system with a multi-projection environment including a stage installed for a performance and a plurality of projection surfaces arranged around the stage and arranged so as not to be parallel to each other, in which synchronized images are projected on the plurality of projection surfaces.

Abstract: According to the present invention there is provided a method of reducing speckle in a primary light spot which is projected onto a surface by a projection device which comprises a laser, wherein a primary light spot is defined by two or more secondary light spots, the method comprising the steps of (a) consecutively providing the laser with “n” different input currents so that the laser consecutively outputs “n” different light beams, wherein each one of the “n” different light beams defines a secondary light spot on the surface, wherein “n” is an integer value greater than one; and (b) superposing the secondary light spots. There is further provided a corresponding method of projecting a pixel.

Abstract: A multi-theater light source for two or more 3D projectors positioned in differing spaces. The apparatus includes a first light source outputting light to display left eye content, and the apparatus includes a second light source outputting light for use by the projectors to display right eye content. The apparatus includes a switching device that receives the light output from the first and second light sources and switches between first and second operating states to route the left and right eye light. In the first operating state, the switching device directs the light from the first light source toward a first projector and the light output from the second light source toward a second projector. In the second operating state, the switching device directs the light output from the first light source toward the second projector and the light output from the second light source toward the first projectors.

Abstract: A light source device includes: a light source including a laser; a dispersing member disposed on a path of a laser beam emitted by the laser, and configured to disperse the laser beam into a plurality of dispersed beams with peak intensities lower than a peak intensity of the laser beam to emit the dispersed beams; and an optical component disposed on paths of the dispersed beams.

Abstract: A projection system includes a projection apparatus embodied in a housing secured to a user. The projection apparatus has a processor in data communication with a networking device, at least one input/output device, and computer memory. The computer memory includes a program with machine readable instructions that, when effected by processor, perform the following steps: (a) determine an edge of a surface to be measured; (b) project an initial image onto the surface, the initial image being based on a predetermined set of conditions; (c) determine a substantially perpendicular distance D1 between the projection apparatus and the surface; (d) determine a distance D2 between the projection apparatus and the edge of the surface; (e) calibrate the initial image based on the distances D1 and D2 determined in steps (c) and (d); and (f) project an updated image onto the surface.

Abstract: A projection-type display device includes a light source unit, an electro-optical device that modulates light emitted from the light source unit, and a projection optical system that projects the light modulated by the electro-optical device. In the electro-optical device, when a mirror that modulates light assumes an ON posture, the light from the light source unit is reflected in an ON direction toward the projection optical system and, when the mirror assumes an OFF posture, the light from the light source unit is reflected in an OFF direction different from the ON direction. An image capture element that receives incident light that has entered the projection-type display device from the outside via the projection optical system is provided in a direction in which the incident light is reflected by the mirror that assumes the OFF posture.

Abstract: An illumination device includes: an excitation light source that emits excitation light having a first wavelength; and a fluorescent member that includes a fluorescent substance that, when it is irradiated with the excitation light, emits light having a second wavelength longer than the first wavelength, transmits a part of the excitation light and reflects another part of the excitation light, and a first reflective film provided at a side of the fluorescent substance, which is opposite to an excitation light incidence side, the fluorescent member emitting multiplexed light including an excitation light component reflected from the fluorescent substance and the first reflective film and a light component emitted from the fluorescent substance.

Abstract: A superstereoscopic image retroreflecting display that enables the formation of a real image in free space includes a first light source that generates a first light output; a lenticular lens optically coupled to the first light source that, with the first light source, generates a first light output having viewing angle dependency; a first beam splitter module; and a retroreflector module opposite the first light source.

Abstract: An illumination device includes: an excitation light source that emits excitation light having a first wavelength; a fluorescent substance that, when irradiated with the excitation light, emits light having a second wavelength longer than the first wavelength and transmits a part of the excitation light, and thereby multiplexes and emits the transmitted excitation light having the first wavelength and the emitted excitation light having the second wavelength; and a driving unit that moves an irradiation position of the excitation light in the fluorescent substance with the passage of time.

Abstract: A display system that is particularly well-suited for use in providing or displaying a live cinematic performance to an audience. The system includes a first space that is directly viewable by the audience and that is illuminated with a stage lighting assembly. Human, robotic, or other physical performers are positioned in the first space and selectively illuminated by light from the stage lighting. The system includes a Pepper's ghost assembly configured to provide enhanced brightness of the projected image as background items in the Pepper's ghost assembly's space are hidden from view by the audience. The Pepper's ghost assembly may include one or more high speed projectors or other light sources, a high speed vision system, and black retroreflective material, and these components function in combination to allow the assembly to be operated to selectively light objects and people in the hidden space without projecting the background to the audience.

Abstract: A projection lens has a lens barrel holding a lens. In a case where an image forming panel is disposed to be shifted with respect to an optical axis of the projection lens, in a second part on a side to which the image forming panel is shifted with respect to the optical axis of the projection lens, there is a great increase in temperature, and in a first part on the opposite side, there is a small increase in temperature. A lens barrel heating optical section has a first mirror, condensing lenses, and a second mirror. The lens barrel heating optical section emits the redundant light, which is reflected by the color wheel, toward the first part of the lens barrel. By heating the first part through redundant light, temperature distribution in the circumferential direction becomes uniform, and deterioration in performance of the projected image is suppressed.