Abstract: The present disclosure relates to a vibrating mirror adjustment apparatus, system and method, and a projector. The vibrating mirror adjustment apparatus includes: an image feature acquiring module, an image identifying module, a resolution extracting module, and a vibrating mirror control module. The vibrating mirror adjustment apparatus identifies the category of the projected image and the resolution information corresponding to the projected image based on the acquired information feature of the projected image, then identifies whether vibration of the vibrating mirror is used to improve a resolution of an image, and further automatically controls the on or off state of the vibrating mirror, such that an optimal projection display effect is achieved, and visual enjoyment of a user is greatly improved.

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.

Abstract: Embodiments of the present application relate to the technical field of projection, and in particular, relate to a projection method and a projection device. The projection method includes: acquiring a projection image and an environmental image when a screen picture is projected to a projection region, wherein the environmental image includes an image when a predetermined projection screen picture is projected to the projection region or an image when no screen picture is projected to the projection region; regulating an aperture based on the projection image and the environmental image, wherein the aperture is configured to control a light flux projected to the projection region. Therefore, by adjusting the light flux, impacts caused by the stray light may be mitigated, and a relationship between projection contrast and luminance may be better coordinated, such that the projection contrast and luminance are effectively balanced and hence projection quality is improved.

Abstract: Embodiments of the present disclosure, provide a projection image anti jitter method and apparatus, and a projector. With the projection image anti jitter method, jitter data of a projection lens is captured; jitter characteristic information and offset data are acquired by calculation; and the projection image is adjusted based on the offset data.

Abstract: Embodiments of the present disclosure provide a projector and a projection system. In the projector, a projection light source, a polarizing beam splitting prism, and a projection lens are disposed in a first direction, and the polarizing beam splitting prism is disposed between the projection light source and the projection lens; a polarized light converting component, the polarizing beam splitting prism, and an LCOS imaging chip are disposed in a second direction, and the polarizing beam splitting prism is disposed between the polarized light converting component and the LCOS imaging chip, wherein the second direction is perpendicular to the first direction.

Abstract: Embodiments of the present disclosure relate to the technical field of digital projection and display, and in particular, relate to an automatic focusing projection method and system. The embodiments provide an automatic focusing projection method, which is applicable to an automatic focusing projection system. The automatic focusing projection system includes a ranging unit, a projection unit, and a reflection unit. The method includes: acquiring a depth image from the ranging unit, and acquiring a vertical projection distance from the ranging unit to a projection plane based on the depth image; acquiring position information of a center point of a projection picture in the depth image based on an elevation angle of the reflection unit and the vertical projection distance; acquiring a projection distance between the projection unit and the projection picture based on the position information; and performing focus adjustment on the projection unit based on the projection distance.

Abstract: An unmanned store is provided. The unmanned store includes a projection device, a rotation device, a functional keypad, and a control system. The projection device may 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 may send a key signal to a control system in response to the functional key being pressed; upon receiving the key signal, the control system switches the commodity information displayed by the projection device based on the key signal.

Abstract: Embodiments of the present disclosure relate to a zooming projection method and a projector. The projector includes a focusing device and a lens movable along an optical axis. The method includes: acquiring a projection distance between the projector and a projection position; adjusting the lens to a target position for projection by the focusing device in response to the projection distance being within an optical zooming range; and scaling a projection image and projecting the scaled projection image in response to the projection distance being not within the optical zooming range.

Abstract: Embodiments of the present disclosure propose a method for controlling projection of a projection module, a projection system and a storage medium. The method for controlling projection of the projection module includes: obtaining a projection environment where the projection module is located, and determining a position of a target person according to the projection environment; and planning the best projection position in the projection environment according to the projection environment and the position of the target person. The best projection position in the projection environment is planned according to the position of the target person, so that the projection picture projected by the projection module can be adaptively changed along the position of the target person to fit with the current status of the target person to improve the perception experience of the user.

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 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 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 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: A mobile device and method for advertisement projecting. The mobile device includes: a main unit with a control circuit board; a projection module for projecting advertisement contents; a projection display window for completely displaying projection contents from the projection module, a camera module group for acquiring projection environment information in front of and behind the projection display window, and a main unit fixing device for fixing the mobile device for advertisement projecting on a mobile body. The main unit is configured to push corresponding advertisement contents which is projected by the projection module according to the projection environment information.

Abstract: A bi-directional excitation color wheel includes a first working surface and a second working surface which are of the same size, wherein the first working surface includes a first working ring and a second working ring which are concentric rings; the second working surface includes a third working ring and a fourth working ring which are concentric rings; the first working ring includes a first translucent region and a green fluorescent region, the second working ring includes a second translucent region, the third working ring includes a third translucent region, and the fourth working ring includes a fourth translucent region and a first fluorescent region; the first translucent region and the third translucent region are the same translucent region, and the second translucent region and the fourth translucent region are the same translucent region.

Abstract: A curved-surface apparatus for wavelength converting. The apparatus includes: a light source excitation unit comprising a plurality of light source exciters for emitting identical or different excited light, respectively; a wavelength conversion unit provided with annular structure; a plurality of component sets circularly disposed on a curved surface of the annular structure and divided into a plurality of component regions provided with predetermined color wavelength conversion substances; a beam splitter set configured to reflect the excited light emitted by the light source excitation unit and transmit predetermined light; a condenser lens set disposed near the wavelength conversion unit.

Abstract: A color wheel includes an inner ring, including translucent regions which are diagonally distributed; and an outer ring, including fluorescent regions and a translucent region, the fluorescent regions including green fluorescent regions and yellow fluorescent regions, the green fluorescent regions being diagonally distributed; wherein, the angles of the translucent regions of the inner ring are greater than or equal to the angles of the green fluorescent regions of the outer ring, the angle extension lines of the ring-shaped green fluorescent regions passing through the center of a circle fall within the ring-shaped translucent regions of the inner ring, such that the green light generated in the green fluorescent regions passes through the translucent regions after being reflected, and the yellow light generated in the yellow fluorescent regions is projected to a red light filter after being reflected.