Optionally, the light beam shaping module further comprises at least one first aspheric collimating lens with a large numerical aperture, which lens is disposed on the light path running from {TAIL ~ the light source} to {HEAD ~ the cylindrical lens} 
Optionally , the light beam shaping module further comprises at least one first aspheric collimating lens with a large numerical aperture , which lens is disposed on the light path running from { TAIL ~ the light source } to { HEAD ~ the cylindrical lens }
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 OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD