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See all 37 Products in Family

37mm Outer Diameter, Iris Diaphragm

Stock #35-110
£42.50
Qty 1-4
£42.50
Qty 5-9
£35.70
Qty 10+
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Minimum Aperture (mm):
0.8
Maximum Aperture (mm):
25.0
Outer Diameter (mm):
37.0
Construction:
Brass Housing, Blue Tempered Steel Leaves
Lever Diameter (mm):
3.00
Lever Length (mm):
12.90
Number of Leaves:
14.00
Thickness (mm):
5.50
Type of Lever:
Pin
RoHS:
Exempt
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Product Family Description

Our standard series iris diaphragms have been specifically designed for OEM integration and general laboratory use. All offer exceptionally smooth operation over the lever travel, from maximum to minimum aperture (approximately 90°). Lever actuators are available in two styles: stainless steel “pin” or plastic “tab.” All standard series diaphragms have blued spring steel leave construction and black housing finish.

Incorporated into standard optical systems, iris diaphragms can provide control of system f/# (f/# = focal length/effective diameter), field stop diameter, and overall energy throughput. It should be noted, however, that the location of the iris is critical to how it will affect the system. For specific OEM application assistance, please contact our Applications Engineering Department.

Note: Iris Diaphragm Mounts sold separately.

Technical Information

*All dimensions in mm
Outside Diameter A Maximum Aperture B Minimum Aperture C Thickness D Stock No.
10.0 5.0 0.70 4.50 #54-352
14.8 8.00 0.70 4.50 #32-623
15.5 8.50 1.00 5.30 #42-124
19.8 12.0 0.80 5.0 #30-263
22.0 14.0 1.0 6.0 #42-123
24.0 15.0 0.8 5.0 #32-622
28.0 18.0 0.8 5.0 #32-621
30.0 20.0 0.8 5.5 #35-111
31.0 18.0 1.2 6.5 #36-623
33.0 22.0 0.8 5.5 #32-620
37.0 25.0 0.8 5.5 #35-110
40.0 28.0 1.2 5.5 #42-122
42.0 42.6 1.2 5.8 #40-997
42.0 30.0 1.0 6.0 #64-500
48.0 48.0 1.2 6.8 #40-998
48.5 30.0 1.2 7.0 #42-121
49.0 34.0 1.5 6.5 #41-972
50.0 36.0 1.5 6.0 #32-619
53.0 37.0 1.5 6.0 #32-618
55.0 41.0 1.5 6.5 #41-973
58.0 42.0 1.5 6.5 #30-118
60.0 40.0 2.5 7.8 #36-624
70.0 50.0 2.5 7.5 #32-617
77.0 59.0 7.0 8.0 #32-616
80.0 58.0 3.0 8.0 #32-615
82.0 60.0 4.0 10.1 #36-625
92.0 70.0 4.5 9.0 #32-614
100.0 75.0 4.5 9.0 #30-264
110.0 80.5 4.5 10.0 #32-613
120.0 90.0 5.0 12.0 #32-612
130.0 98.0 5.0 12.0 #32-611
140.0 104.0 5.0 11.0 #32-610
150.0 110.0 6.0 13.0 #60-644
165.0 120.0 6.0 15.0 #32-609
180.0 138.0 11.5 13.0 #32-608
208.0 158.0 11.0 16.0 #70-894
300.0 225.0 12.0 19.0 #70-895

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