B270/optical glass/White glass/Coloreless optical glass
standard :According to customer 's request

B270/optical glass/White glass/Coloreless optical glass
 standard :According to customer 's request

 type    Thickness      λtj(nm)    λo(nm)    Tλo(%)    K  

B270   1-5     310±10    400  ≥89.5  ≥1.0