1) optical glass (borosilicate) material 2) above 94% light transmittance 3) high temperature resistance 4)clear
led projector lamp glass lens(GT-Fresnel)
1)material: optical glass(borosilicate),K9,BK7,B270
2) light transmittance: 95%( coated lens can up to 97%)
3) Size:
4) shape: aspheric
5) we can make based on your samples and drawing
6) main feature
a: clear and transparent, no mould markd,no inside bubble and dirts
b: can match up all kinds of different high power led ,uniform facula,no collapsar,shadow and dark
c: adopt high precisy aspheric design and superior optical glass, strictly perform ROHS environmental standard
7) application : used in LED projector light
Fresnel lens
