Iris Diaphragms


with snapring


with retaining ring


fully closing



Our precise components allow an exact light dosing with identical light colour temperatures, exact projection and illumination surface control and explicit focus depth setting.

Field of Application
In addition to the many applications in the optics industry, our iris diaphragms are mainly used in opto-electronics, laser and medical technology and, of course, in lighting technology.

The use of high quality materials combined with the highest standards of fabrication guarantee that our iris diaphragms provide functional reliability even when subjected to the most extreme operating conditions

At the heart of the component are hardened spring steel leaves with a burnished, reflex reducing surface. Where greater resistance to heat is required, stainless chrome nickel steel is used.

Smooth diaphragms motion is achieved by rounding the edges of the blades, which are then subjected to an exacting vibratory grinding process. Maximum surface protection of our blades against corrosion is attained by a special burnishing process. Finally, an invisible coating is laid onto the surface of the blades to further enhance their gliding smoothness.

Manufactured of a corrosion resistant aluminium alloy the casing surface gets matt black decoratively anodised.

Special orders
Both in design and manufacturing on request we can take account of specific customer requirements such as special dimensions, difficult operating conditions due to extreme temperature, special fastening elements, toothing for motor operation and other individual qualifications.

Special diaphragm series
Within the scope of our exceptionally large product range we also offer an extensive product programme of fully closing iris diaphragms.