Catalog excerpts
Laser Shutter Systems SR470 Series — Laser shutters and controllers SR470 Series Shutter Systems · Ultra-low vibration shutter head · True mechanical laser beam blocking · >10 M cycle lifetime · Microprocessor controlled timing · DC to 125 Hz · Easy to align 3 mm aperture (SR475) · GPIB, RS-232 and Ethernet · SR470 Controller ... $1200 (U.S. list) Introducing two new optical shutter systems from SRS — the SR470 Laser Shutter Controller and SR474 Four-Channel Laser Shutter Driver. These shutter systems are designed specifically to minimize vibration on your optical table. They are built around a unique shutter head design, supported by one of two available controller models. The SR470 provides timing signals to a single shutter head, while the multi-channel SR474 drives up to four shutter heads, and is controlled by external timing signals. The Shutter Head Unlike conventional solenoid based shutters, the SR475 and SR476 shutter heads contain a closed-loop DSP control system that precisely guides the shutter blade between open and closed positions, never encountering physical stops. Vibration and mechanical noise are kept to a minimum, leaving your optical table disturbance-free. The shutter blade is mounted between sapphire jewel bearings that minimize friction and result in a head lifetime in excess · SR474 Controller ... $1200 (U.S. list) · SR475 Shutter Head ... $495 (U.S. list) · SR476 Shutter Head ... $495 (U.S. list) The SR475’s unique beryllium-copper shutter blade driven with rare earth magnets Stanford Research Systems phone: (408)744-9040 www.thinkSRS.com
Open the catalog to page 1SR470 Series Laser Shutter Systems of 10 M cycles — orders of magnitude more than is typically found in shutter heads. The 3 mm clear aperture (SR475) is designed for easy alignment and is large enough to be used with common light sources. Typical rise and fall times are under 500 µs, and repetition rates from DC to 100 Hz can be used. Unlike other shutters, the SRS shutter is not duty cycle limited — you can run any duty cycle you choose. The SR476 has a 1 mm clear aperture and supports repetition rates to 125 Hz. In addition to triggered sequences, the SR470 can also act as a driver to...
Open the catalog to page 2SR470 Series Specifications SR475 & SR476 Laser Shutter Heads Display Mechanical Type Display blanking Shutter blade Clear aperture Repetition rate Exposure rise/fall time Insertion delay jitter Bearing Blade position Opening/closing bounce Operating temperature Mounting BeCu alloy, black oxide finish 0.120 in. min. diameter (SR475) 0.039 in. min. diameter (SR476) 100 Hz (SR475) >125 Hz (SR476) 500 µs typ., in full-speed (SR475) 750 µs typ., in full-speed (SR476) 10 µs rms typ. (measured at 10 Hz rep rate) Sapphire jewel bearing Closed-loop (PID) controlled. Can be operated as NO or NC....
Open the catalog to page 3SR470 Series Specifications General About the Shutter Heads Display blanking Front panel LEDs can be disabled. Interfaces GPIB, RS-232 and Ethernet. All instrument functions are controllable over the interfaces. Auxiliary I/O port Rear-panel Aux I/O, TTL level Shutter polarity “Normally Open” and “Normally Closed” states for each channel are set on rear-panel DIP switch. Power 75 W, 90 to 264 VAC, 47 to 63 Hz Dimensions 7.95" × 3.37" × 10.25" (WHL) Weight 7 lbs. Warranty One year parts and labor on defects in materials and workmanship (SR475 and SR476 shutter heads are warranted for 90...
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