Patent ID: 9210388
Filing Date: 2015-12-08
Classification: G02B,H01L,H01S,H04N

Abstract:
1. A laser source module comprising: a plurality of laser sources which generate a plurality of laser beams, each including a laser having a laser chip installed on a heat sink and a lens for converting a radiated light from the laser into one of the respective laser beams; and a beam combining unit to align the laser beams from the plurality of laser sources on a single combined beam optical axis, wherein an optical axis of each of the respective laser beams in at least two of the laser sources decenter towards a predetermined orthogonal direction from the combined beam optical axis according to an operating condition of the laser sources, and wherein the lasers in the at least two of the laser sources are arranged so that the respective laser beams thereof decenter towards a same direction from the combined beam optical axis upon displacement of an emission point of the respective laser chips away from the respective heat sinks in the at least two of the laser sources.