ELECTRO-OPTICAL PRODUCTS CORPORATION
	88-65 76th Avenue • Glendale, NY 11385, USA • Tel: 718-997-8100 • Fax: 718-997-8102 • www.eopc.com

High Frequency Optical Scanners

		SC-30 DESCRIPTION CAD DRAWINGS

FEATURES AND ADVANTAGES ONE FIXED FREQUENCY from the range of 200 Hz to 16 kHz Mirror size 25×25mm Scan angle to 30° peak to peak optical Small size/lightweight Low power drive electronics Rugged, no wearing parts Maintenance free High reliability Withstands shock and vibration High frequency stability (to 0.005%) High/low temperature operation1 Vacuum operation (to 10-10 Torr)1 Jitter free operation No radiated electromagnetic interference (EMI) Reference signal available Glass mirrors are standard, metal mirrors, prisms or lenses optional1 1 Available on special order

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The SC-30 type scanners are small size, long life, beam steering components which combine precision, accuracy, and excellent repeatability with high speed to generate, follow and control optical patterns. A scanner of this type operates at ONE FIXED FREQUENCY from the range of 200Hz to 16KHz. While frequency is fixed, scan amplitude can be modulated. Scan rating can be doubled by scanning in both directions.

High speed resonant scanners are used for raster scanning in both projection and data-acquisition applications. The 16KHz scanner is most suitable to meet the line-scan high-resolution display requirements for TV and HDTV. The 8KHz scanner with simultaneous bi-directional scanning will produce the same number of scan lines per frame (page) rate, and the same pixel placement accuracy. The resonant scanner oscillates with a sinusoidal motion, tuned to resonate is opposite phase. Operating at the frequency of 16KHz, 8KHz, or 4KHz eliminates external vibration (mass balance is achieved when the torsional motions set up an equal and opposite torque that cancel out at the torsion rod-housing attachment. Resonant scanners offer low cross-axis wobble. Scan-to-scan repeatability is well below 1 arc second PTP optical. A feedback amplifier, supplied separately, controls the mirror angle and provides a reference signal. Special drivers are available to lock the scanner to a stable source (external clock). The SC-30 is a good candidate for X,Y raster scan systems and systems locked in a master/slave mode.

Operation at resonant frequency is sustained by a feedback amplifier type ED driver or the AGC driver, using the scanner as a frequency source. The AGC driver also provides a higher amplitude stability (0.01%) and a position output signal. The PLD-1S driver will phase lock the scanner to an external clock signal. The PLD-2S driver will phase lock two scanners as a "master/slave" scanning system and the PLD-2SXY driver will phase lock two scanners as an "X-Y" scanning system.

Special vane configurations, modulating waveforms and shapes are available as a special order (consult EOPC). Drive electronics with different package, regulation and power supply options are available. Special pricing is also available for OEM applications.

ORDERING INFORMATION: