37mm Outer Dia., AR Steel Leaves Iris Diaphragm

Standard Series

Stock #84-131 10 to 12 days
- +
Qty 1-4
Qty 5+
Volume Pricing
Request Quote
Get Product Downloads
Minimum Aperture (mm):
1.5, Typical
Maximum Aperture (mm):
Outer Diameter (mm):
Anodized Aluminum Alloy, Anti-Reflection (AR) Leaves
Full Angular Range of Lever (°):
Lever Diameter (mm):
Lever Length (mm):
Lever Position (mm):
Number of Leaves:
Operating Temperature (°C):
Pin Thread & Pitch:
M1.7 x 0.35
Thickness (mm):
Type of Lever:
Removable Pin

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 233:

Product Family Description

  • Corrosion Resistant Housing
  • High Heat Resistance
  • AR Spring Steel or Burnished Spring Steel Leaf Options Available
  • Iris Diaphragm Mounts Sold Separately

High Performance Standard Series Iris Diaphragms utilize high-quality materials combined with the highest fabrication standards to guarantee that these irises provide optimum performance reliability even under the most extreme conditions. Different leaf and aperture diameter options allow these irises to be successfully integrated into a variety of applications, including imaging and high-temperature environments. Irises with removable pins are conveniently incorporated into OEM solutions. Known pin/tab angular deviation allows upfront, accurate assessment of movement requirements. High Performance Standard Series Iris Diaphragms are constructed of a corrosion-resistant, matte finish, black anodized aluminum alloy. Custom variations will be considered for OEM quantities; please get in touch with our Sales Department for quantity discounts.

Note: Iris Diaphragm Mounts sold separately.

Technical Information

Outer Diameter A Maximum Aperture B Minimum Aperture C Thickness D Level Position E Full Angular Range of Lever F Stock No.
10mm 5mm 0.5mm 4mm 2.4mm 76° #57-573
12mm 7mm 0.5mm 4mm 2.4mm 85° #57-574
14.8mm 8mm 1mm 4.5mm 2.5mm 81° #57-580
19.8mm 12mm 1mm 4mm 2.5mm 80° #57-575
28mm 18mm 1mm 5mm 2.9mm 89° #57-576
30mm 20mm 1.2mm 5.5mm 2.9mm 90° #57-577
37mm 25mm 1.5mm 5.5mm 3mm 93° #57-582
53mm 37mm 2.5mm 6mm 3.2mm 89° #57-583
70mm 50mm 2.5mm 7mm 3.8mm 84° #57-584
82mm 60mm 4mm 8mm 4.5mm 91° #57-585
100mm 75mm 4mm 9mm 4.5mm 95° #57-586
Sales & Expert Advice
or view regional numbers
enter stock numbers to begin