Abstract: The present invention discloses a driving current correction method and apparatus for multiple laser devices, and a laser projector.

Abstract: An apparatus and a method for assembling optical module. The apparatus includes: a plurality of fixtures, an alignment mechanism, a power supply, a spectroscopic prism with a light incident surface close to the plurality of optical modules to be aligned, a first color image collecting means close to a first light emitting surface of the spectroscopic prism and a second color image collecting means with a second light emitting surface of the spectroscopic prism; the controller is configured to determine a light spot that does not meet a quality requirement according to the positions and/or sizes of the plurality of imaging light spots, and generate a corresponding aligning instruction, and determine a to-be-assembled lens necessary to be adjusted according to a color of the light spot that does not meet quality requirements, and output the aligning instruction to an alignment mechanism to adjust a position of the lens necessary to be adjusted.

Abstract: Provided are an AR display method, an AR display apparatus and an AR display device, the device including: a display assembly used for displaying a virtual content, an optical assembly, and a micro mirror array coupled to the optical assembly; the micro mirror array is located on a propagation path of light emitted from the display assembly.

Abstract: Provided are a method and an apparatus for adjusting an exposure time of a camera and a device, where the method includes: controlling the camera to collect an imaging light spot of an imaging component with a first exposure time; obtaining an energy value received when the camera collecting the imaging light spot; if the energy value is not within a set energy range, adjusting a duration of the first exposure time according to a relationship between the energy value and the energy range to update the first exposure time. The technical solution provided in the present disclosure can adjust the exposure time of the camera to a reasonable value so as to improve the accuracy and reliability of light spot analysis.

Abstract: Provided is an optical module assembly device, including: a fixing member for fixing an optical member to be assembled, a power supply component for supplying power to the optical member to be assembled, and an alignment mechanism for placing a lens to be assembled at the specified position; a beam splitting prism with an in-light surface close to the optical member to be assembled, a first image acquisition device close to a first out-light surface of the beam splitting prism and coaxial with the first out-light surface, and a second image acquisition device close to a second out-light surface of the beam splitting prism and coaxial with the second out-light surface; and a controller configured to control the alignment mechanism to adjust a position of the lens to be assembled according to the images captured by the first image acquisition device and the second image acquisition device.

Abstract: An apparatus and a method for assembling optical module is provided and the method includes: controlling an alignment mechanism holding a to-be-assembled lens to move at a preset step-size in a preset direction when an optical module to be aligned generates an image; collecting light spots of the images generated by an optical module to be aligned sequentially by an image collecting means, each time the alignment mechanism moves; selecting a light spot with a minimum size from the collected light spots, and determining a movement position of the alignment mechanism when the light spot with the minimum size is collected, as an optimal position; controlling the alignment mechanism to move to the optimal position to align the to-be-assembled lens.