Model

2 inch

3 inch

4 inch

6 inch

Dimensions (mm)

50.8*50.8

76.2*76.2

152.4*152.4

152.4*152.4

Main area shape

square

square

circle

circle

Main area size (mm)

38*38

60*60

∅95

∅140

Alignment area size (mm)

45*45

67*67

∅102

∅148

Adapt to the size of the interferometer

4 inch / 6 inch

4 inch / 6 inch

4 inch / 6 inch

4 inch / 6 inch

Adapt to interferometer types

Fizeau interferometer，Michelson interferometer

F#

0.7 / 1.0 / 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 10.0

Reference light

parallel light

Working wavelength

Conventional 632.8nm, can be customized according to customer wavelength

accuracy

RMS better than 6nm

CGH inclination angle

Regarding the+1 degree of X

Structural accessories

Six dimensional adjustment frame+adapter frame

Six dimensional adjustment frame