Irises, Apertures & Shutters

See YouTube video below for setup instructions. The 3501 Optical Chopper provides rock-solid stability and flexibility because its chopping frequency is phase-locked to its own internal frequency synthesizer. It comes... Read More

The 75150 Apex Optical Chopper System gives you a range of chopping frequencies from sub-Hz to 3 kHz. An LCD on the chopper's controller displays the chopping frequency. 1.5-Inch Series female and male flanges let you... Read More

The ID-1.0 Iris Diaphragm uses 14 leaves to provide a continuously variable 1.5 to 25 mm aperture for applications including setting the numerical aperture of a lens, controlling or measuring the intensity of a ... Read More

The M-SV-0.5 Compact Adjustable Width Slit provides precise micrometer-driven adjustment of two blades centered equally about a 12.7 mm through-hole. The slit width ranges from fully closed to 5 mm and is designed so ... Read More

The 50075 Optical Shutter isn’t just a shutter, it also serves as an exposure control device and a high speed chopper. This bi-stable system changes state when the polarity of the 5 VDC driving voltage is changed. It ... Read More

The M-ID-1.0 Iris Diaphragm uses 14 leaves for a 1.5 to 25 mm aperture range. Designed for smooth adjustment and the best possible aperture shape, each iris consists of an array of curved, spring-steel leaves whose ... Read More

The ID-0.5 Iris Diaphragm uses 10 leaves to provide a continuously variable 1 to 11 mm aperture for applications including setting the numerical aperture of a lens, controlling or measuring the intensity of a diffuse ... Read More

The SV-0.5 Compact Adjustable Width Slit provides precise micrometer-driven adjustment of two blades centered equally about a 1/2 inch (12.7 mm) through-hole. The slit width ranges from fully closed to 0.20 inch (5 ... Read More

The M-ID-1.5 Iris Diaphragm uses 18 leaves for a 2.4 to 41.3 mm aperture range. Designed for smooth adjustment and the best possible aperture shape, each iris consists of an array of curved, spring-steel leaves whose ... Read More

The ID-1.5 Iris Diaphragm uses 18 leaves to provide a continuously variable aperture for applications including setting the numerical aperture of a lens, controlling or measuring the intensity of a diffuse beam, or ... Read More

The 70277 Beam Aperture Disk is a 1.0 inch (25.4 mm) diameter aluminum disc with a 0.1 inch circular opening. Beam Aperture Disks are useful for limiting the angular aperture entering a detector or monochromator. Use ... Read More

The 75158 Enclosed Chopper System is a better choice if you're mounting the chopper in an optical system; you can couple the chopper head directly to other instruments via the 1.5 Inch Series male flange. When ... Read More