Unmounted Iris Diaphragms
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) … Read more →
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Min. Aperture
Any
Max. Aperture
Any
Outer Diameter
Any
Number of Leaves
Any
Temperature
Any
or
82
catalog variants — refine the spec to narrow it down.
| SKU | Outer Diameter · Max. Aperture · Number of Leaves · Min. Aperture · Temperature · Group | |
|---|---|---|
| 992-1177-H | 117 mm·75 mm·18·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1177-HT | 117 mm·75 mm·18·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1177-N | 117 mm·75 mm·18·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1258-H | 125 mm·85 mm·18·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1258-HT | 125 mm·85 mm·18·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1258-N | 125 mm·85 mm·18·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1359-H | 135 mm·98 mm·20·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1359-HT | 135 mm·98 mm·20·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1359-N | 135 mm·98 mm·20·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1601-H | 160 mm·113 mm·20·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1601-HT | 160 mm·113 mm·20·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-1601-N | 160 mm·113 mm·20·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-2512-H | 25 mm·12 mm·12·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-2512-N | 25 mm·12 mm·12·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-2915-H | 29 mm·15 mm·12·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-2915-N | 29 mm·15 mm·12·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-3922-H | 39 mm·22 mm·14·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-3922-N | 39 mm·22 mm·14·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-4830-H | 48 mm·30 mm·14·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-4830-HT | 48 mm·30 mm·14·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-4830-N | 48 mm·30 mm·14·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-6940-H | 69 mm·40 mm·14·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-6940-HT | 69 mm·40 mm·14·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-6940-N | 69 mm·40 mm·14·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-9460-H | 94 mm·60 mm·16·0 mm·up to 400°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-9460-HT | 94 mm·60 mm·16·0 mm·up to 1000°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 992-9460-N | 94 mm·60 mm·16·0 mm·up to 250°C·Zero Aperture Iris Diaphragms (992 Series) |
Out of stock
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| 993-1005-AR | 10 mm·5 mm·8·0.5 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1005-N | 10 mm·5 mm·8·0.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1075-H | 100 mm·75 mm·20·4 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1075-N | 100 mm·75 mm·20·4 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1207-AR | 12 mm·7 mm·8·0.5 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1207-N | 12 mm·7 mm·8·0.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1398-H | 130 mm·98 mm·20·4 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1398-N | 130 mm·98 mm·20·4 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1482-N | 14 mm·8.2 mm·8·0.8 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1488-N | 14.8 mm·8 mm·9·1 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1513-H | 150 mm·113 mm·20·6 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1513-N | 150 mm·113 mm·20·6 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1610-N | 16 mm·10 mm·10·1 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1612-H | 165 mm·120 mm·18·6 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1612-N | 165 mm·120 mm·18·6 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1912-AR | 19.8 mm·12 mm·11·1 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1912-H | 19.8 mm·12 mm·11·1 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-1912-N | 19.8 mm·12 mm·11·1 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-2214-AR | 22 mm·14 mm·10·1 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-2214-N | 22 mm·14 mm·10·1 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-2415-H | 24 mm·15 mm·12·1 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-2415-N | 24 mm·15 mm·12·1 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-2818-AR | 28 mm·18 mm·12·1 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-3020-AR | 30 mm·20 mm·12·1.2 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-3020-H | 30 mm·20 mm·12·1.2 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-3020-N | 30 mm·20 mm·12·1.2 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-3322-N | 33 mm·22 mm·14·1.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-3725-N | 37 mm·25 mm·15·1.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4027-AR | 40 mm·27 mm·12·1.5 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4027-H | 40 mm·27 mm·12·1.5 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4027-N | 40 mm·27 mm·12·1.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4330-H | 43 mm·30 mm·14·1.5 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4330-N | 43 mm·30 mm·14·1.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4934-AR | 49 mm·34 mm·14·2 mm·up to 180°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-4934-H | 49 mm·34 mm·14·2 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-5036-N | 50 mm·36 mm·16·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-5337-N | 53 mm·37 mm·16·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-5842-H | 58 mm·42 mm·18·2.5 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-5842-N | 58 mm·42 mm·18·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-6040-H | 60 mm·40 mm·12·2.5 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-6040-N | 60 mm·40 mm·12·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-6445-H | 64 mm·45 mm·14·2.5 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-6445-N | 64 mm·45 mm·14·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-7050-N | 70 mm·50 mm·18·2.5 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-8260-H | 82 mm·60 mm·17·4 mm·up to 400°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 993-8260-N | 82 mm·60 mm·17·4 mm·up to 250°C·Iris Diaphragms with retainer (993 Series) |
Out of stock
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| 994-1508-N | 15 mm·8 mm·9·1 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-1585-N | 15.5 mm·8.5 mm·9·1 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-2214-N | 22 mm·14 mm·10·1 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-3118-N | 31 mm·18 mm·11·1.5 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-4027-N | 40 mm·27 mm·12·1.5 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-4830-N | 48.5 mm·30 mm·10·1.2 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-6040-N | 60 mm·40 mm·12·2.5 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-7050-N | 70 mm·50 mm·18·2.5 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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| 994-8260-N | 82 mm·60 mm·17·4 mm·up to 250°C·Screwed Iris Diaphragms (994 Series) |
Out of stock
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No catalog variant matches your exact spec. Add it to your cart as a quote request — sales will confirm price and lead time within 1 business day.
Specifications
Classification
| Type | iris-diaphragm |
Description
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)
All Zero Aperture iris diaphragms (992 series) contain two layers of leaves with a gap between them.
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.
