Patent ID: 8290015

Claim:
A semiconductor laser device comprising: a semiconductor laser element emitting laser light; a frame on which the semiconductor laser element is mounted; and a resin-molded portion arranged on the frame, around the semiconductor laser element, wherein: the resin-molded portion has a first part and a second part which are arranged to a first side and a second side, respectively, of an optical axis of the semiconductor laser element, the semiconductor laser element being placed between the first part and the second part; the first part has a first inner surface which faces the semiconductor laser element and a first outer surface which faces away from the semiconductor laser element; the second part has a second inner surface which faces the semiconductor laser element and a second outer surface which faces away from the semiconductor laser element; a width between the first outer surface and the second outer surface of the resin-molded portion as measured in a front part thereof is stepwise smaller than a width as measured in a rear part thereof; the frame has a part projecting frontward of a front end of the resin-molded portion; and a width of the projecting part of the frame is shorter than the width between the first outer surface and the second outer surface of the front end of the resin-molded portion.