Irises, Apertures & Shutters use metal and mechanics to replicate the function of an optic. Irises, Apertures & Shutters can be used for blocking attenuating, diffracting, modulating or aligning light. Our mechanical-optics include continuously variable Iris Diaphragms which can be used for attenuating the power of a light beam or can be used as an aid for beam alignment. Fixed- and Adjustable-width Slits can be used for imaging as well as beam profiling. Beam Apertures are useful for limiting the angular aperture entering a detector or monochromator. Optical Choppers can modulate a continuous wave source for detection by pyroelectric and other detectors. Electronic Shutters are used for laser pulse gating, precise exposure control, CCD frame transfers or simply for safety and protecting detectors from saturation.
Selecting an Iris, Aperture, Chopper or Shutter
Click Irises, Apertures & Shutters to shop or browse all of our standard models, or select a product family below to learn more about our products and capabilities. We also offer a full line of standard Optics.
| Optical Shutters |
Special Features |
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Oriel Optical Shutter |
• Fast response time, <80 µs
• Vibration free
• Compact and easily mounted |
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Oriel Electronic Fast Shutters |
• Fast exposure times - as short as 2 ms
• Controlled via external TTL pulse, remote switch or RS-232
• Synchronizing output signal
• Compact size with 1.5 inch series flanges for easy mounting to detectors |
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Low Cost Electronic Shutter |
• Low speed shutter
• Timed exposures
• 1.5 inch flange mounting |
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Electronic Safety Shutters |
• Terminate beam without shutting down the system
• Usable with sources to 1000 W
• Convenient remote control switch |
| Optical Choppers |
Special Features |
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Optical Iris Diaphragms |
• Chopping is phase-locked to an internal frequency synthesizer for rock-solid stability and flexibility
• Versatile—chop at frequencies from 4 Hz to 6.4 kHz
• Lock to external references for harmonic or sub-harmonic chopping |
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Oriel Optical Choppers |
• Variable frequency, sub-Hz to 2400 Hz
• Digital display of true frequency; accurate to ±1 digit
• Dual aperture wheels for sum or different frequencies
• Phase control to a reference
• On/Off stop capability |
| Iris Diaphragms |
Special Features |
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Precision Optical Iris Diaphragms |
• Smooth, continuous aperture control
• Wide aperture range
• Compatible with Newport mounts and positioners |
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Optical Iris Diaphragms |
• Smooth, continuous aperture control
• 2.5–73 mm aperture range
• Four models
• Post mountable
• Compatible with X26 Rail System |
| Beam Apertures and Slits |
Special Features |
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Compact Adjustable Width Slit |
• Slit width from fully closed to 0.20 in. (5 mm)
• Micrometer reading corresponds to actual slit width
• Face plate and post mounting holes
• English or metric mounting thread versions |
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Slit Assemblies and Slit Holders |
• Various slit types available
• Compact rod mounted holder for each type |
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Beam Apertures for Light Sources |
• Limit angular aperture
• Attenuate beam |