Abstract: Embodiments of the present application relate to a projection apparatus. The projection apparatus includes: a projection apparatus body; a projection unit, disposed on the projection apparatus body, and configured to project a projection picture; and an adjustment unit, disposed on the projection apparatus body and being movable relative to the projection apparatus body, wherein in response to moving to a first position relative to the projection apparatus body, the adjustment unit is configured to bear exit light from the projection unit, and adjust a projection direction of the exit light. The adjustment unit bears exit light from the projection unit and adjusts the projection direction of the exit light, such that a projection direction of the projection picture is adjusted.

Abstract: Embodiments of the present disclosure, relating to the technical field of projection, provides a projection device. The projection device includes: an imaging module, configured to project images; a position adjustment module, connected to the projection module, and configured to adjust a position of the projection module; a controller, connected to the projection module and the position adjustment module, and configured to control the projection module to project images, and control the position adjustment module to adjust the position of the projection module.

Abstract: The present disclosure provides a projection apparatus. The projection apparatus includes: a projection body, a rotation platform, wherein the projection body is rotatably connected to the rotation platform; a first drive device, arranged on the projection apparatus and configured to drive the projection body to rotate relative to the rotation platform; a base, wherein the rotation platform is rotatably connected to the base; a second drive device, arranged on the base and configured to drive the rotation platform to rotate relative to the base; and a controller, arranged on the projection apparatus and configured to control the first drive device and the second drive device.

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: 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 planar surfaces.

Abstract: The present disclosure provides a projection lens and a projector. The projection lens includes: a first lens, a second lens, a third lens, a triple-cemented lens, a fourth lens, a prism, and a DMD chip that are successively disposed along an optical axis from an image side to an object side; wherein the first lens has a negative focal power, the second lens has a negative focal power, the third lens has a positive focal power, the triple-cemented lens has a positive focal power, and the fourth lens has a positive focal power.

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 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: 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: 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: The application provides a battery management method and a power supply system. The battery management method includes: providing the power supply system comprising a power supply device and a plurality of battery systems connected in parallel, the power supply device electrically configured to control the charging or discharging of each of the plurality of battery systems connected to each of the plurality of battery systems; detecting an actual voltage of each battery system; controlling the start of battery systems with a low actual voltage for charging or discharging; and controlling the start of battery systems with a high actual voltage after the actual voltage of each battery system is balanced. The battery systems are directly controlled by the power supply device when connected in parallel to the power supply system, such that unlimited capacity expansion may be realized without redesigning the battery systems or adding a BMS.

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.