Iris diaphragm M-DI47 series

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. All three sizes available have multiple spring-steel leaves to provide a circular opening and mount directly to optical posts and pillars. •Three 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 Features Wide Range of Possible Aperture Sizes M-DI47 Series Iris Diaphragms feature an easy-to-grip housing 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. Three models are available with aperture size ranges 5.0 mm to 49 mm and 7.0 mm to 73 mm. Irises mount directly to Metric optical posts and pillars with an M4 threaded stud. 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.