| CPC G01S 17/894 (2020.01) [G01S 7/484 (2013.01); G01S 7/4863 (2013.01); H01L 28/10 (2013.01); H01S 3/00 (2013.01)] | 7 Claims |
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1. A laser emitting module, comprising at least two groups of laser emitting circuits, wherein each group of the laser emitting circuits comprises one charging energy storage circuit and a plurality of energy releasing circuits, at least two of the plurality of energy releasing circuits each includes a plurality of lasers and a plurality of energy releasing switches, the plurality of energy releasing switches and the plurality of lasers are connected in parallel in one-to-one correspondence, and the charging energy storage circuit is triggered at intervals to charge and work by a corresponding charging signal; any one of the plurality of energy releasing circuits comprises an energy releasing switch and at least one laser connected in series, and the energy releasing circuits are triggered to connect by a corresponding discharge signal, to drive the at least one laser in the energy releasing circuits to emit a laser pulse toward a corresponding field of view; and when the laser emitting module continuously emits laser pulses, two adjacent laser pulses are triggered to be emitted by different groups of the laser emitting circuits;
at least one laser emitting board, wherein when a group of the laser emitting circuits comprises multiple energy releasing circuits, the multiple energy releasing circuits being located on the same laser emitting board or different laser emitting boards;
lasers are arranged on the laser emitting board corresponding to staggered optical emitting angles,
wherein the at least one laser emitting board comprises a first side surface and a second side surface that are arranged oppositely; and
for each of the at least one laser emitting board, a binding region is arranged in at least one of an edge region of the first side surface and a same edge region of the second side surface, and the plurality of lasers are sequentially bound at intervals to the binding region along a vertical region corresponding to a field of view;
a fixing bracket configured to fix and install a plurality of the laser emitting boards, wherein the fixing bracket comprises a plurality of fixing portions arranged oppositely and a connecting portion vertically connected to the plurality of fixing portions; and
a plurality of limiting portions are oppositely arranged on the plurality of fixing portions respectively, the plurality of limiting portions are arranged parallel to the connecting portions sequentially at intervals, and the limiting portions oppositely arranged are configured to limit and install one of the plurality of the laser emitting boards.
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