High quality aspherical focusing lenses Optical glass flat convex lenses Semiconductor laser diode spot spots

 
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Color classification:
16mm glass 400-700nm coating 18 no. 16mm glass 700-1100nm coating 19 no. 6.33mm G2 focal length 4.05mm 21 no. 5mm glass 14mm focal length 22 no. 6mm glass 25mm focal length 23 no. 3mm glass focal length 2mm 24 no. 6mm glass 11mm focal length 25 no. 6mm glass 19mm focal length 26 no. 3mm glass focal length 6mm 31 no. 8mm glass focal length 4mm 400-470nm coating
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