Staggered Array of Light-Emitting Elements for Sweeping out an Angular Range

    公开(公告)号:US20170359883A1

    公开(公告)日:2017-12-14

    申请号:US15180977

    申请日:2016-06-13

    申请人: Google Inc.

    IPC分类号: H05B37/02 F21V5/04 F21V23/00

    摘要: The present disclosure relates to staggered arrays of individually addressable light-emitting elements for sweeping out angular ranges. One example device includes an astigmatic optical element. The device may also include an array of individually addressable light-emitting elements arranged to emit light towards the astigmatic optical element. The astigmatic optical element may be arranged to focus light emitted from each individually addressable light-emitting element to produce a substantially linear illumination pattern at a different corresponding scan angle within an angular range. The example device may further include a control system operable to sequentially activate the individually addressable light-emitting elements such that the substantially linear illumination pattern sweeps out the angular range. The individually addressable light-emitting elements may be staggered with respect to one another in the array such that the substantially linear illumination pattern sweeps out the angular range continuously.