Note: Fast compact laser shutter using a direct current motor and three-dimensional printing

We present a mechanical laser shutter design that utilizes a direct current electric motor to rotate a blade which blocks and unblocks a light beam. The blade and the main body of the shutter are modeled with computer aided design (CAD) and are produced by 3D printing. Rubber flaps are used to limit...

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Bibliographic Details
Published in:Review of scientific instruments 2015-12, Vol.86 (12), p.126105-126105
Main Authors: Zhang, Grace H, Braverman, Boris, Kawasaki, Akio, Vuletić, Vladan
Format: Article
Language:English
Subjects:
CAD
COMPUTER-AIDED DESIGN
DIRECT CURRENT
ELECTRIC MOTORS
ENGINEERING
FAILURES
Flaps
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Light beams
OSCILLATIONS
Performance degradation
Rubber
Scientific apparatus & instruments
SHUTTERS
Three dimensional printing
VELOCITY
Vibration
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Summary:We present a mechanical laser shutter design that utilizes a direct current electric motor to rotate a blade which blocks and unblocks a light beam. The blade and the main body of the shutter are modeled with computer aided design (CAD) and are produced by 3D printing. Rubber flaps are used to limit the blade's range of motion, reducing vibrations and preventing undesirable blade oscillations. At its nominal operating voltage, the shutter achieves a switching speed of (1.22 ± 0.02) m/s with 1 ms activation delay and 10 μs jitter in its timing performance. The shutter design is simple, easy to replicate, and highly reliable, showing no failure or degradation in performance over more than 10(8) cycles.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4937614