LED illumination control systems and methods

    公开(公告)号:US09857060B2

    公开(公告)日:2018-01-02

    申请号:US15089486

    申请日:2016-04-02

    申请人: Wing Kong Lo

    发明人: Wing Kong Lo

    摘要: An illumination apparatus has a circular base plate and a plurality of tracks arranged radially about the base plate. LED modules are disposed upon the tracks, and transmission members coupled to the LED modules move the LED modules along the tracks. A distance measurement sensor is mounted on one side of the base plate, and is used to measure a distance value of an illuminated object. A processor is configured to determine a desired radius value for the plurality of LED modules based on the distance value and move the transmission members according to the desired radius value.

    Apparatus and method for adjusting screen luminance of spliced display device

    公开(公告)号:US09739453B2

    公开(公告)日:2017-08-22

    申请号:US15073279

    申请日:2016-03-17

    发明人: Fan Yang Xiao Zhang

    摘要: According to embodiments of the present disclosure, an apparatus for adjusting the luminance of a screen of a spliced display device may include: an adjustment module configured to control rotation of a light-emitting unit within a backlight module in the spliced display device within a range; a collection module configured to collect a plurality of pieces of luminance information of a spliced screen of the spliced display device when the light-emitting unit is rotated at various angles; and a processing module configured to calculate a ratio between a minimum luminance value and a maximum luminance value for each piece of the luminance information, determine a maximum value among a plurality of the ratios and a specific angle of rotation of the light-emitting unit corresponding to the luminance information having the maximum value, and rotate the light-emitting unit at the specific angle of rotation by controlling the adjustment module.