Part 
Number

Optical 
Material

A 
(mm)

B 
(mm)

C 
(mm)

H
 (mm)

φ

Refractive 
Index 
@ 633 nm

Design
 Wavelength
 (nm)

Refractive
 Index 
@ Design WL

IB-15.0-68.7-SS

Suprasil 1

12.7

18.2

20.6

15.0

68.7°

1.45702

488

1.46301

IB-12.4-69.1-UV

Fused Silica

15.0

15.0

17.0

12.4

69.1°

1.45702

800

1.45332

IB-13.0-60.6-SF10

N-SF10

15.0

15.0

15.1

13.0

60.6°

1.72314

800

1.7113

IB-21.6-60.6-SF10

N-SF10

25.0

25.0

25.2

21.6

60.6°

1.72314

800

1.7113