M-DI47 Series Optical Iris Diaphragms

These irises provide continuously adjustable apertures, as small as 5 mm or as large as 73 mm, for a variety of common optics applications such a beam alignment and attenuation. Both models available have multiple spring-steel leaves to provide a circular opening and mount directly to optical posts and pillars.

Two ranges of aperture sizes provide 5 to 73 mm iris openings
18 overlapping spring-steel leaves form a round aperture
Smooth, continuous aperture control
Mount directly to metric optical posts

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Compatibility:

	Compare	Description	Compatibility	Drawings, CAD & Specs	Minimum Aperture	Maximum Aperture	Optical Axis Height	Thread Type	Avail.	Price
		M-DI47.50Iris Diaphragm, Continuously Variable 5 to 49 mm Aperture	UNIVERSAL		5 mm	49 mm	33.5 mm	M4	In Stock	$264
		M-DI47.68Iris Diaphragm, Continuously Variable 7 to 73 mm Aperture	UNIVERSAL		7 mm	73 mm	48.5 mm	M4	In Stock	$277

Features

Wide Range of Possible Aperture Sizes

M-DI47 Series Iris Diaphragms mount directly to Metric optical posts and pillars with the M4 threaded stud (rubber cover needs to be removed). They feature an easy-to-grip housing for aperture actuation and provide continuously variable apertures for a multitude of optical applications, such as beam alignment, light attenuation, or as baffles to block spurious reflections and scattered light. Two models are available with aperture size ranges 5.0 mm to 49 mm and 7.0 mm to 73 mm.

Continuously Adjustable Aperture With Ideal Shape

For smooth adjustment and an optimal shape for the aperture opening, each iris consists of an 18 of curved, overlapping, spring-steel leaves. These leaves intersect to provide a circular opening as they adjust continuously between two supporting rings with the adjustment of a pin handle attached to the inner ring.