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Unmounted Iris Diaphragms

Unmounted Iris Diaphragms

Iris diaphragms provide adjustable aperture range from zero aperture up to Ø120 mm. These continuously variable diaphragms are available with blades from springsteel, stainless steel or alloy for different optical applications and operating temperatures.

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delivery Estimated delivery time: 5 - 7 days
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Description
Min. Aperture
Max. Aperture
Outer Diameter
Number of Leaves
Temperature
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Zero Aperture Iris Diaphragms (992 Series)
Code Min. Aperture Max. Aperture Outer Diameter Number of Leaves Temperature Price Delivery Add to cart
992-2512-H 0 mm 12 mm 25 mm 12 up to 400°C Request Request
992-2512-N 0 mm 12 mm 25 mm 12 up to 250°C Request Request
992-2915-H 0 mm 15 mm 29 mm 12 up to 400°C Request Request
992-2915-N 0 mm 15 mm 29 mm 12 up to 250°C Request Request
992-3922-H 0 mm 22 mm 39 mm 14 up to 400°C Request Request
992-3922-N 0 mm 22 mm 39 mm 14 up to 250°C Request Request
992-4830-H 0 mm 30 mm 48 mm 14 up to 400°C Request Request
992-4830-N 0 mm 30 mm 48 mm 14 up to 250°C Request Request
992-4830-HT 0 mm 30 mm 48 mm 14 up to 1000°C Request Request
992-6940-H 0 mm 40 mm 69 mm 14 up to 400°C Request Request
992-6940-N 0 mm 40 mm 69 mm 14 up to 250°C Request Request
992-6940-HT 0 mm 40 mm 69 mm 14 up to 1000°C Request Request
992-9460-H 0 mm 60 mm 94 mm 16 up to 400°C Request Request
992-9460-N 0 mm 60 mm 94 mm 16 up to 250°C Request Request
992-9460-HT 0 mm 60 mm 94 mm 16 up to 1000°C Request Request
992-1177-H 0 mm 75 mm 117 mm 18 up to 400°C Request Request
992-1177-N 0 mm 75 mm 117 mm 18 up to 250°C Request Request
992-1177-HT 0 mm 75 mm 117 mm 18 up to 1000°C Request Request
992-1258-H 0 mm 85 mm 125 mm 18 up to 400°C Request Request
992-1258-N 0 mm 85 mm 125 mm 18 up to 250°C Request Request
992-1258-HT 0 mm 85 mm 125 mm 18 up to 1000°C Request Request
992-1359-H 0 mm 98 mm 135 mm 20 up to 400°C Request Request
992-1359-N 0 mm 98 mm 135 mm 20 up to 250°C Request Request
992-1359-HT 0 mm 98 mm 135 mm 20 up to 1000°C Request Request
992-1601-H 0 mm 113 mm 160 mm 20 up to 400°C Request Request
992-1601-N 0 mm 113 mm 160 mm 20 up to 250°C Request Request
992-1601-HT 0 mm 113 mm 160 mm 20 up to 1000°C Request Request
Iris Diaphragms with retainer (993 Series)
Code Min. Aperture Max. Aperture Outer Diameter Number of Leaves Temperature Price Delivery Add to cart
i 993-1005-AR 0.5 mm 5 mm 10 mm 8 up to 180°C Request Request
993-1005-N 0.5 mm 5 mm 10 mm 8 up to 250°C Request Request
993-1207-AR 0.5 mm 7 mm 12 mm 8 up to 180°C Request Request
993-1207-N 0.5 mm 7 mm 12 mm 8 up to 250°C Request Request
993-1482-N 0.8 mm 8.2 mm 14 mm 8 up to 250°C Request Request
993-1488-N 1 mm 8 mm 14.8 mm 9 up to 250°C Request Request
993-1912-AR 1 mm 12 mm 19.8 mm 11 up to 180°C Request Request
993-1912-H 1 mm 12 mm 19.8 mm 11 up to 400°C Request Request
993-1912-N 1 mm 12 mm 19.8 mm 11 up to 250°C Request Request
993-2214-AR 1 mm 14 mm 22 mm 10 up to 180°C Request Request
993-2214-N 1 mm 14 mm 22 mm 10 up to 250°C Request Request
993-2415-H 1 mm 15 mm 24 mm 12 up to 400°C Request Request
993-2415-N 1 mm 15 mm 24 mm 12 up to 250°C Request Request
993-2818-AR 1 mm 18 mm 28 mm 12 up to 180°C Request Request
993-3020-AR 1.2 mm 20 mm 30 mm 12 up to 180°C Request Request
993-3020-H 1.2 mm 20 mm 30 mm 12 up to 400°C Request Request
993-3020-N 1.2 mm 20 mm 30 mm 12 up to 250°C Request Request
993-3322-N 1.5 mm 22 mm 33 mm 14 up to 250°C Request Request
993-3725-N 1.5 mm 25 mm 37 mm 15 up to 250°C Request Request
993-4027-AR 1.5 mm 27 mm 40 mm 12 up to 180°C Request Request
993-4027-H 1.5 mm 27 mm 40 mm 12 up to 400°C Request Request
993-4027-N 1.5 mm 27 mm 40 mm 12 up to 250°C Request Request
993-4330-H 1.5 mm 30 mm 43 mm 14 up to 400°C Request Request
993-4330-N 1.5 mm 30 mm 43 mm 14 up to 250°C Request Request
993-4934-AR 2 mm 34 mm 49 mm 14 up to 180°C Request Request
993-4934-H 2 mm 34 mm 49 mm 14 up to 400°C Request Request
993-5036-N 2.5 mm 36 mm 50 mm 16 up to 250°C Request Request
993-5337-N 2.5 mm 37 mm 53 mm 16 up to 250°C Request Request
993-5842-H 2.5 mm 42 mm 58 mm 18 up to 400°C Request Request
993-5842-N 2.5 mm 42 mm 58 mm 18 up to 250°C Request Request
993-6040-H 2.5 mm 40 mm 60 mm 12 up to 400°C Request Request
993-6040-N 2.5 mm 40 mm 60 mm 12 up to 250°C Request Request
993-6445-N 2.5 mm 45 mm 64 mm 14 up to 250°C Request Request
993-6445-H 2.5 mm 45 mm 64 mm 14 up to 400°C Request Request
993-7050-N 2.5 mm 50 mm 70 mm 18 up to 250°C Request Request
993-8260-H 4 mm 60 mm 82 mm 17 up to 400°C Request Request
993-8260-N 4 mm 60 mm 82 mm 17 up to 250°C Request Request
993-1075-H 4 mm 75 mm 100 mm 20 up to 400°C Request Request
993-1075-N 4 mm 75 mm 100 mm 20 up to 250°C Request Request
993-1181-AR 3 mm 81 mm 110 mm 16 up to 180°C Request Request
993-1290-AR 3.5 mm 90 mm 120 mm 20 up to 180°C Request Request
993-1398-H 4 mm 98 mm 130 mm 20 up to 400°C Request Request
993-1398-N 4 mm 98 mm 130 mm 20 up to 250°C Request Request
993-1513-N 6 mm 113 mm 150 mm 20 up to 250°C Request Request
993-1513-H 6 mm 113 mm 150 mm 20 up to 400°C Request Request
993-1612-H 6 mm 120 mm 165 mm 18 up to 400°C Request Request
993-1612-N 6 mm 120 mm 165 mm 18 up to 250°C Request Request
993-1610-N 1 mm 10 mm 16 mm 10 up to 250°C Request Request
Screwed Iris Diaphragms (994 Series)
Code Min. Aperture Max. Aperture Outer Diameter Number of Leaves Temperature Price Delivery Add to cart
994-1508-N 1 mm 8 mm 15 mm 9 up to 250°C Request Request
994-1585-N 1 mm 8.5 mm 15.5 mm 9 up to 250°C Request Request
994-2214-N 1 mm 14 mm 22 mm 10 up to 250°C Request Request
994-3118-N 1.5 mm 18 mm 31 mm 11 up to 250°C Request Request
994-4027-N 1.5 mm 27 mm 40 mm 12 up to 250°C Request Request
994-4830-N 1.2 mm 30 mm 48.5 mm 10 up to 250°C Request Request
994-6040-N 2.5 mm 40 mm 60 mm 12 up to 250°C Request Request
994-7050-N 2.5 mm 50 mm 70 mm 18 up to 250°C Request Request
994-8260-N 4 mm 60 mm 82 mm 17 up to 250°C Request Request
Unmounted Iris Diaphragms
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EKSMA Optics offers three types of unmounted iris diaphragms:

  • zero aperture iris diaphragms (992 series)
  • standard iris diaphragms with retainer (993 series)
  • standard iris diaphragms screwed (994 series)

Iris diaphragms provide a continuously variable field stop for controlling the focal length of an optical system or for adjusting the diameter of a beam. Iris diaphragms enable smooth operation over the lever travel, from maximum to minimum aperture. Lever actuators of these diaphragms are either of plastic tab or steel pin.

Each iris diaphragm consists of leaves and the case. For different applications leaves are made from either hardened spring steel, stainless chrome nickel steel or stainless steel. For producing the case, corrosion resistant aluminium alloy is used. Fine mat black look is achieved by black-anodizing its surface.

Unmounted iris diaphragms are ideal for OEM applications, please note that these diaphragms have no mounting holes and cannot be mounted directly on a rod. Diaphragms can be mounted using an appropriate mount or please have a look at our selection of mounted irises.