Abstract: The present disclosure provides a dual reflective micro projection optical engine. The dual reflective micro projection optical engine includes a light source and a DMD chip, and a collimating light-combining module, a fly-eye lens, a reflective mirror, a diopter prism, a prism assembly, and a projection lens that are successively disposed in a light exit direction of the light source.

Abstract: The present disclosure provides a dual reflective micro projection optical engine. The dual reflective micro projection optical engine includes a light source and a DMD chip, and a collimating light-combining module, a fly-eye lens, a diopter prism, a reflective mirror, a relay lens, a prism assembly, and a projection lens that are successively disposed in a light exit direction of the light source, wherein a light incident surface and a light exit surface of the diopter prism are freely-curved surfaces.

Abstract: Embodiments of the present disclosure, relating to the field of micro projector engines, provide a micro projection optical engine with a compact layout, small size, and convenient portability. The micro projection optical engine includes a light source and a DMD chip, and a collimating light-combining module, a fly-eye lens, a relay system, a first triangular prism, a second triangular prism, and a projection lens that are successively disposed in a light exit direction of the light source.

Abstract: Embodiments of the present disclosure, relating to the field of micro projector engines, provide a micro projection optical engine with a compact layout, small size, and convenient portability. The micro projection optical engine includes a light source and a DMD chip, and a collimating light-combining module, a fly-eye lens, a relay system, a curved prism, a triangular prism, and a projection lens that are successively disposed in a light exit direction of the light source.

Abstract: Embodiments of the present disclosure, relating to the field of micro projector engines, provide a micro projection optical engine with a compact layout, small size, and convenient portability. The micro projection optical engine includes a light source and a DMD chip, and a collimating light-combining module, a fly-eye lens, a relay system, a first triangular prism, a compensation lens, a second triangular prism, and a projection lens that are successively disposed in a light exit direction of the light source.

Abstract: A method for adjusting a projection picture includes: receiving a first image, captured by a first imaging module, of a position where the projection picture is located, and a second image, captured by a second imaging module, of surroundings of a projection device; identifying, based on the first image, whether a projection shade is present within a projection range of a projecting module; identifying position information of a projection shade in response to the projection shade being present; identifying, based on the second image, movable directions and movable distances of the projection device; and controlling, based on the position information of the projection shade and the movable directions of the projection device and the movable distances in the movable directions, the position adjusting module to adjust the projection device, such that the projection device escapes from the projection shade and a complete projection picture is acquired.

Abstract: Embodiments of the present disclosure provide an unmanned store. The unmanned store includes a projection device, a rotation device, a functional keypad, and a control system. The projection device is configured to project a virtual image to a real space of the unmanned store; the rotation device is connected to the projection device, and is configured to drive the projection device to rotate such that the virtual image moves in the real space; the functional keypad includes a functional key, and is configured to send a key signal to a control system in response to the functional key being pressed; the control system is communicably connected to the projection device, the rotation device, and the functional keypad, and is configured to receive the key signal, and switch the virtual image of the projection device based on the key signal.

Abstract: Embodiments of the present disclosure relate to the technical field of projection and display, and in particular, relate to a projection device.

Abstract: The present disclosure relates to the technical field of digital projection display, and discloses a projection method and a projection apparatus. The method includes: acquiring a target object image; identifying attribute information of a target object based on the target object image; acquiring preset projection content based on the attribute information of the target object; acquiring a projection path; and projecting a projection screen based on the preset projection content and controlling the projection screen to move along the projection path. In this way, the projection is more flexible and more pertinent.

Abstract: Embodiments of the present disclosure, relating to the technical field of projection and display, provide a projection device. The projection device includes a projecting unit, a dust-proof device, and an adjusting unit. The dust-proof device includes a housing, a first light-transmissive plate, and a second light-transmissive plate. The housing is provided with a receiving chamber. The projecting unit is disposed in the dust-proof device, and the dust-proof device achieves a dust-proof function for the projecting unit. In addition, part of the projection light beam of the projecting unit may be emitted from the first light-transmissive plate of the dust-proof device to achieve projection in a first direction, and may be emitted from the second light-transmissive plate to achieve projection in a second direction.

Abstract: The present disclosure, relating to the technical field of projection and display, provides a projection device. The projection device includes: a projecting unit, configured to emit a projection screen; a direction adjusting unit; a reflecting unit, fixed to the direction adjusting unit, wherein the direction adjusting unit is configured to adjust a reflection direction of the reflecting unit; and a height adjusting unit, wherein one end of the height adjusting unit is connected to the projecting unit and the other end of the height adjusting unit is connected to the direction adjusting unit, the height adjusting unit is configured to adjust a spacing between the reflecting unit and the projecting unit, and the reflecting unit is configured to reflect the projection screen emitted by the projecting unit. With such configurations according to the embodiments of the present disclosure, a height of the projection screen is adjusted by adjusting a spacing between the reflecting unit and the projecting unit.

Abstract: Embodiments of the present disclosure provide a method for controlling virtual pets and a smart projection device. The method is applicable to the smart projection device. The smart projection device may project the virtual pets to the real space, display the same in a predetermined style, and may change different styles at will, such that the user may obtain the experience of raising different pets. In addition, the smart projection device may also receive the instruction information from the user, and control the virtual pets to conduct corresponding interaction behaviors according to the instruction information.

Abstract: Embodiments of the present disclosure relate to an apparatus for assembling a prism, and a production facility. The apparatus includes: a first station, configured for placement of the prism; a second station, configured for placement of a fitting body; a manipulator, configured to grasp the prism; a first drive unit, connected to the manipulator, and configured to drive the manipulator to be lifted or lowered; and a second drive unit, connected to the first drive unit, and configured to drive the first drive unit to reciprocate between the first station and the second station; a clamping device, disposed in the mounting slot of the fitting body, and configured to clamp the prism; and a controller, connected to the manipulator, the first drive unit, and the second drive unit.

Abstract: Embodiments of the present disclosure relate to the technical field of digital projection display, and disclose a dynamic projection device, a dynamic projection method, and a projector. The device includes: a projection unit configured to output a projection picture according to a projection image; a reflection unit configured to reflect the projection picture to a target projection position; an angle calculation unit connected with the reflection unit and configured to calculate a rotation angle of the reflection unit; and an image correction unit connected with the angle calculation unit and the projection unit, respectively, and configured to correct the projection image according to the rotation angle. The present disclosure adjusts the projection direction by controlling the reflection unit with simple structure and light weight, realizing convenient direction control and high-quality projection display, and covering a wide area of the projection environment.

Abstract: The present application provides a double-telecentric projection lens. The double-telecentric projection lens includes a front lens group, a rear lens group, and an equivalent prism that are successively arranged between an image side and a DMD chip; wherein the front lens group includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens that are successively arranged, and the rear lens group includes a sixth lens, a seventh lens, an eighth lens, and a ninth lens that are successively arranged, wherein the third lens and the fourth lens constitute a double-cemented lens; and the DMD chip is configured to simultaneously emit two images, wherein during simultaneous emission of the two images from the DMD chip, the simultaneously emitted two images are emitted from the double-telecentric projection lens and imaged at different positions.

Abstract: A projection optical system applicable to a head-up display device mounted on an automobile includes an image generation unit, a first reflection unit, a light splitting device, a first lens, a second reflection unit, and a second lens that are successively arranged in a light exit direction; and a controller configured to control, based on timing, an image emitted from the connected image generation unit and light exiting from the connected light splitting device; wherein the top view of the light splitting in disc shape includes transmission region and reflection region. The light exits only from the reflection region during the image generation unit emitting the first image and exits only from the transmission region during the image generation unit emitting the second image, such that the first image and the second image are emitted and imaged through the first lens and the second lens.

Abstract: The present disclosure provides a projection apparatus. The projection apparatus includes: a light supply device, including an LED lamp and a collimator fly-eye lens, wherein lamp bodies of the LED lamp are arrayed and the LED lamp is capable of simultaneously emitting red, green, and blue light rays, and the collimator fly-eye lens is capable of collimating the light ray emitted by each of the lamp bodies; an optical path conversion device, configured to convert a direction of the light rays emitted by the light supply device; a DMD device, configured to process the light rays from the optical path conversion device and feed the processed light rays to the optical path conversion device; and a projection lens device; wherein the light rays transmitted by the optical path conversion device to the projection lens device to achieve image projection.

Abstract: A projection optical system applicable to a head-up display device mounted on an automobile includes an image generation unit, a reflection unit, a double-telecentric lens, a light splitting device, and an imaging lens that are successively arranged in a light exit direction. The light splitting device needs to be arranged on an image side of the double-telecentric lens and configured to reflect a light beam for imaging in light beams emitted by the image generation unit. The double-telecentric lens is configured to adjust a size of the projection image. The imaging lens is configured to adjust a virtual image distance of the projection image and output the light beams of the projection image to achieve projection imaging.

Abstract: A projection optical system includes an image generation unit, a first reflection unit, a double-telecentric lens, a second reflection unit, and an imaging lens that are successively arranged in a light exit direction. The double-telecentric lens is configured to adjust a size of the projection image. The imaging lens is configured to adjust a virtual image distance of the projection image and output light beams of the projection image to achieve projection imaging. In the projection optical system according to the embodiments of the present disclosure, the size of the projection image is flexibly adjusted by the double-telecentric lens, and the virtual image distance of the projection image is flexibly adjusted by the imaging lens.

Abstract: Embodiments of the present disclosure relate to a smart tracking-based projection method and system. The method includes: acquiring information of a real space of a spatial information capturing unit, constructing a 3D model of the real space, and acquiring first position information of a projection picture; acquiring target image information of a target tracking unit, and acquiring second position information of a tracking target based on the target image information; acquiring a target projection region based on the 3D model and the second position information; acquiring, based on the target projection region, rotation information desired by the projection unit; and controlling, based on the rotation information, a drive unit to operate such that the projection picture reaches the target projection region.