Abstract: A laser module includes an encapsulating support, at least one laser, a sealing gasket, and a pressing plate. Each laser includes a supporting plate and a laser body that is fixed to the supporting plate. The supporting plate is fixed on the encapsulating support, and a surface of an end of the laser body away from the supporting plate is a light exit end face. The sealing gasket is located on a surface of the supporting plate close to the light exit end face, and the sealing gasket has a first opening at a position corresponding to the laser body. A pressing plate is located on a surface of the sealing gasket away from the supporting plate; the pressing plate is fixedly connected to the encapsulating support, and the pressing plate has a second opening at a position corresponding to the first opening.

Abstract: The present disclosure describe embodiments of a laser projection apparatus. The apparatus includes: an apparatus housing, a laser source system, an optical illumination system and a lens system. The laser source system includes: a first laser assembly configured to emit a first laser beam, a second laser assembly configured to emit a second laser beam and a third laser assembly configured to emit a third laser beam; a first laser combining lens configured to reflect the third laser beam; a second laser combining lens configured to transmit the second laser beam and reflect the third laser beam; and a third laser combining lens configured to transmit the first laser beam and reflect the second and third laser beams. The optical illumination system is configured to modulate laser beams to generate a modulated beam. The lens system is configured to project the modulated beam onto a projection screen.

Abstract: A laser projection device includes: a laser light source, including three laser assemblies emitting lasers of different colors; a laser light source driving unit, including: a display control circuit; three power supply driving assemblies connected to the three laser assemblies; and three laser driving assemblies connected to three power supply driving assemblies, where the display control circuit is configured to transmit an enabling signal corresponding to each laser assembly to a corresponding power supply driving assembly when transmitting a PWM signal corresponding to the each laser assembly; each power supply driving assembly is configured to load a driving voltage to a corresponding laser driving assembly according to voltage of a received PWM signal, when a received enabling signal is at active potential; and each laser driving assembly is configured to drive a corresponding laser assembly to emit light according to the driving voltage.

Abstract: A projection display system includes a control assembly, an optical path changing device, a light source assembly, a digital micromirror device, and a projection lens. The control assembly is configured to determine whether a resolution of an image to be projected is greater than a preset resolution. If the resolution of the image to be projected is greater than the preset resolution, the control assembly divides the image to be projected into N sub-images, wherein N is greater than or equal to 2. For each sub-image: the control assembly is further configured to determine a first signal, a second signal, and a third signal according to the sub-image, send the first signal to the light source assembly, send the second signal to the digital micromirror device, and send the third signal to the optical path changing device. The projection lens is configured to project the N sub-images at different times.

Abstract: A projection screen includes a screen board, a connecting cloth, a screen frame, and at least one connecting member. The screen board has a first surface and a second surface opposite, the screen board has a light receiving region and an edge region surrounding the light receiving region. At least one edge of the connecting cloth protrudes from a corresponding edge of the screen board, and at least a portion of the second surface of the screen board located in the edge region is connected to the connecting cloth. The screen frame has a hollow structure, an orthographic projection of the screen board on a plane parallel to the first surface is located within an outer border of an orthographic projection of the screen frame on the plane. The at least one connecting member connects at least one edge of the connecting cloth to the screen frame.

Abstract: The present disclosure describes a laser assembly. The laser assembly includes a support comprising at least one mounting groove. The laser assembly includes at least one laser mounted in the at least one mounting groove in a one-to-one correspondence. Each of the at least one laser includes a light emitting component configured to emit a light beam. A beam-shaping component is disposed at a light path of the light emitting component. The beam-shaping component includes a light incident surface disposed close to the light emitting component, the light incident surface is configured to transmit the light beam emitted from the light emitting component toward an opening of the mounting groove, and the light incident surface is configured to change a divergence angle of the light beam along at least one of a fast axis direction or a slow axis direction of the light beam.

Abstract: Provided are a screen frame and a laser projection display device. The screen frame includes a plurality of side frames that are connected end to end, where a joint of each two of the plurality of side frames is provided with at least two connectors and receiving grooves corresponding to the at least two connectors in a one to one manner, and the at least two connectors have inserting portions extendable into the receiving grooves, at least one inserting portion of the inserting portions is provided with a telescopic engaging member, and a side wall of a receiving groove which is corresponding to an inserting portion having the engaging member is provided with a receiving hole corresponding to the engaging member; the engaging member is configured to extend into the receiving hole for positioning; and the inserting portions are connected to side walls of the receiving grooves by fasteners.

Abstract: Embodiments of the present disclosure describe a laser projection apparatus. The laser projection apparatus includes a laser source system, an optical engine, a lens system that are sequentially connected in a laser beam propagation direction, a plurality of circuit boards, a first heat dissipation system, and a second heat dissipation system. The first heat dissipation system is configured to dissipate heat of a first laser assembly in the laser source system, the optical engine, and the plurality of circuit boards, and to make airflow sequentially flow through the above components to form a first heat dissipation path. The second heat dissipation system is configured to dissipate heat of a second laser assembly in the laser source system, the lens system, and the plurality of circuit boards, and to make airflow sequentially flow through the above components to form a second heat dissipation path.

Abstract: The present disclosure describes embodiments of a laser projection apparatus. The laser projection apparatus includes: an apparatus housing, a laser source system disposed in the apparatus housing, and the laser source system including a first laser outlet; an optical engine disposed in the apparatus housing, and the optical engine including a second laser inlet and a third laser outlet, and the second laser inlet being connected to the first laser outlet; a lens system disposed in the apparatus housing, and one end of the lens system extending to the third laser outlet; and at least one circuit board. The lens system and the optical engine are disposed along a first direction of the apparatus housing to divide space in the apparatus housing into a first region and a second region. The first region is at a first side of the lens system and the optical engine, and the laser source system is in the first region.

Abstract: The present disclosure describes a laser assembly. The laser assembly includes a support comprising at least one mounting groove. The laser assembly includes at least one laser mounted in the at least one mounting groove in a one-to-one correspondence. Each of the at least one laser includes a light emitting component configured to emit a light beam. A beam-shaping component is disposed at a light path of the light emitting component. The beam-shaping component includes a light incident surface disposed close to the light emitting component, the light incident surface is configured to transmit the light beam emitted from the light emitting component toward an opening of the mounting groove, and the light incident surface is configured to change a divergence angle of the light beam along at least one of a fast axis direction or a slow axis direction of the light beam.

Abstract: The present disclosure describe embodiments of a laser projection apparatus. The apparatus includes: an apparatus housing, a laser source system, an optical illumination system and a lens system. The laser source system includes: a first laser assembly configured to emit a first laser beam, a second laser assembly configured to emit a second laser beam and a third laser assembly configured to emit a third laser beam; a first laser combining lens configured to reflect the third laser beam; a second laser combining lens configured to transmit the second laser beam and reflect the third laser beam; and a third laser combining lens configured to transmit the first laser beam and reflect the second and third laser beams. The optical illumination system is configured to modulate laser beams to generate a modulated beam. The lens system is configured to project the modulated beam onto a projection screen.

Abstract: A projector device includes a housing, an optical modulation element provided in the housing, a lens tube with lenses provided inside, and a heat conducting component. A first side wall of the housing is provided with a through hole. The lens tube is nested in the through hole, and a first end of the lens tube is located in the housing and receives lights emitted from the optical modulation element. A first end of the heat conducting component is disposed on an outer wall of a first end of the lens tube, and a second end of the heat conducting component is connected with the housing.

Abstract: Provided are an optical illumination system, and a projection device. In an example, the optical illumination system includes a DMD, a lens assembly and a RTIR assembly. The lens assembly adjusts a light beam. The RIM assembly includes a first plano-convex lens and a wedge prism. The first plano-convex lens includes a plane surface and a convex surface and is configured to refract the light beam adjusted by the lens assembly. The wedge prim includes a first side surface, a second side surface and a third side surface. The plane surface of the first plano-convex lens is glued with the first side surface of the wedge prism. The wedge prism is configured to receive and refract the light beam refracted by the first plano-convex lens through the first side surface, and the light beam refracted by the first side surface is transmitted through the second side surface.

Abstract: The present disclosure describes a laser light source. The laser light source includes first laser emitting first laser light; and a phosphor wheel comprising a plurality of regions arranged along a first circumferential direction. When the first laser light is transmitted onto the plurality of regions of the phosphor wheel, the plurality of regions of the phosphor wheel are configured to emit light comprising at least one of three colors. The plurality of regions of the phosphor wheel comprise at least one pair of first regions configured to emit light of a same color. The plurality of regions of the phosphor wheel comprise one second region spaced between each pair of the at least one pair of first regions. The light emitted from the first region and the light emitted from the second region comprise different colors.

Abstract: A laser array including at least one line of lasers. The at least one line of lasers includes a first laser and a second laser which are adjacent to each other. A first laser beam emitted by the first laser and a second laser beam emitted by the second laser are both in a first color, and the first laser beam has a wavelength less than that of the second laser beam.

Abstract: A projection equipment may including a housing arranged with a first opening and a DMD circuit board arranged with a DMD chip on a side facing the housing, where the DMD chip is arranged with an operational region and a non-operational region. The non-operational region may be located in the periphery of the operational region, and the operational region may modulate a portion of a beam that passes through the first opening when the portion of the beam irradiates onto the operational region. A first heat dissipation member may be arranged between the DMD chip and the housing such that there is a space between the first heat dissipation member and the DMD chip. The first heat dissipation member may be arranged with a second opening which provides a passage for the portion of the beam, while blocking the other portion of the beam.

Abstract: A projector device includes a housing, an optical modulation element provided in the housing, a lens tube with lenses provided inside, and a heat conducting component. A first side wall of the housing is provided with a through hole. The lens tube is nested in the through hole, and a first end of the lens tube is located in the housing and receives lights emitted from the optical modulation element. A first end of the heat conducting component is disposed on an outer wall of a first end of the lens tube, and a second end of the heat conducting component is connected with the housing.

Abstract: A laser array including at least one line of lasers. The at least one line of lasers includes a first laser and a second laser which are adjacent to each other. A first laser beam emitted by the first laser and a second laser beam emitted by the second laser are both in a first color, and the first laser beam has a wavelength less than that of the second laser beam.

Abstract: A wall-hung bracket for a projection screen is provided, including a guide rail, a slider and a lead screw. The guide rail is configured for being fixed on a wall along a vertical direction. The slider is slidingly connected to the guide rail. The slider is configured for being connected to a rear surface of a projection screen. The lead screw is provided with threads, and the lead screw is in threaded connection to the slider. When the lead screw rotates on its longitudinal axis, the slider slides in the vertical direction along the guide rail driven by the lead screw.

Abstract: A laser module includes an encapsulating support, at least one laser, a sealing gasket, and a pressing plate. Each laser includes a supporting plate and a laser body that is fixed to the supporting plate. The supporting plate is fixed on the encapsulating support, and a surface of an end of the laser body away from the supporting plate is a light exit end face. The sealing gasket is located on a surface of the supporting plate close to the light exit end face, and the sealing gasket has a first opening at a position corresponding to the laser body. A pressing plate is located on a surface of the sealing gasket away from the supporting plate; the pressing plate is fixedly connected to the encapsulating support, and the pressing plate has a second opening at a position corresponding to the first opening.