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Iris Diaphragms

Iris Diaphragms

Iris diaphragms are continuously variable field or aperture stops for the use in optical experiments or apparatus.

The diaphragm leaves are made of spring steel and can move smoothly within the cylindrical mount made of brass. The diaphragm opening is adjusted by means of a radial pin actuator with a small knob.

Holders are available for posts mounting in optical setups. The iris diaphragm is inserted into the holder with detached actuator pin. Then the actuator pin is refitted into the iris diaphragm through the operation slit of the holder. An adapter is supplied for mounting posts with M8 thread.

Specifications diaphragms

outer diameter
24 mm 40 mm 70 mm 100 mm
Article-No.:
MIB 024 MIB 040 MIB 070 MIB 100
maximale Öffnung [mm] 15 25 50 75
minimale Öffnung [mm] 0,8 1,2 2,0 4,0
Length [mm] 5,0 5,5 7,5 9,0
Zahl the Blätter
12 16 16 20

Specifications holder

Diameter the Blende
24 mm 40 mm 70 mm 100 mm
Article-No.:
MIF 024 MIF 040 MIF 070 MIF 100
outer diameter [mm] 32 48 82 118
Length [mm] 15 15 15 15

Prices diaphragms

order no. 1 piece in € 2-5 piece in € 6-10 piece in €
MIB 024 52.- 42.- 37.-
MIB 040 63.- 51.- 45.-
MIB 070 190.- 165.- 152.-
MIB 100 206.- 179.- 165.-

Prices Holder

order no. 1 piece in € 2-5 piece in € 6-10 piece in €
MIF 024 110.- 102.- 97.-
MIF 040 124.- 114.- 109.-
MIF 070 226.- 210.- 199.-
MIF 100 283.- 261.- 249.-