The base member is provided with {TAIL ~ a step or slope portion}, or a cut away portion, formed at {HEAD ~ its laser light emission end}, whereby the laser unit can be made compact and the distance between the semiconductor laser tip and the laser driving circuit can be shortened 
The base member is provided with { TAIL ~ a step or slope portion } , or a cut away portion , formed at { HEAD ~ its laser light emission end } , whereby the laser unit can be made compact and the distance between the semiconductor laser tip and the laser driving circuit can be shortened
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH