Part 
Number

Optical 
Material


(mm)


(mm)


(mm)

H
 (mm)

φ

Refractive 
Index 
@ 633 nm

Design
 Wavelength
 (nm)

Refractive
 Index 
@ Design WL

IB-12.4-69.1-UV

Fused Silica

15.0

15.0

17.0

12.4

69.1°

1.45702

800

1.45332