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Compact Resonant Scanner

Features and Advantages

  • ONE FIXED FREQUENCY from the range of 100 Hz to 3,000 Hz
  • Scan angle up to 60° peak-to-peak optical
  • Mirror size up to 20x20mm
  • Vertical or horizontal mounting
  • Small size and 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)
  • Mirror position output available
  • Glass mirrors with enhanced aluminum coating are standard, coating for IR and UV optional1
1 Available on special order

Product Options

100 to 1,500 Hz scanner.
1,600 to 3,000 Hz scanner.
  • Description
  • Drawings
  • Documents

The SC-10 type scanners are low cost, compact size components especially suited for high volume OEM and custom industrial applications.

The fixed frequency resonant optical scanner is an electromagnetically driven moving mirror device, which deflects a light beam with a sinusoidal motion. The mirror assembly is attached at the center of a spring. The scanning frequency range of the SC-20 type scanner is from 10 Hz to 1.5 KHz, fixed at any one value within the range. The scan angle is inversely proportional to the frequency, and is a function of the mirror size.

High device "Q" insures frequency stability, low reaction forces and low electrical drive power. High flexural stiffness provides good resistance to shock and vibration, as well as low wobble and good scan repeatability. Resonating at the natural frequency makes the device an excellent candidate for long life operation for a multitude of applications that require good imaging with minimal distortion. The scanners can easily be incorporated in small size and portable instruments. Glass mirrors are standard. Metal mirrors, gratings, lenses or other optical attachments are available as special order. Also available are mirrors for UV-IR-VIS applications.

The scanners require only minimal power. Since they are components that have no wearing parts, they provide excellent repeatability and long life. The scanners are used in varying applications including:
Surface and quality inspection
Barcode scanners
Pattern forming and recognition
Biomedical imaging
Non-impact printing

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 configurations and elements other than mirrors (e.g.: gratings, prisms, lenses etc.) are available as a special order. Drive electronics with different packaging, regulation and power supply options are available.

For large volume OEM manufacturing we would consider providing free information to build your driver, incorporate it within your drive electronics or build it to your desired size. Special pricing for OEM applications.

ONE FIXED FREQUENCY from the range of 100 to 3,000 Hz. The following should serve as guidelines only.


SCAN ANGLE (P-P deg opt)MIRROR SIZE (mm)FREQ. (Hz +/-10%)


SCAN ANGLE (P-P deg opt)MIRROR SIZE (mm)FREQ. (Hz +/-10%)
40°6 dia or 6x61,600
30°6 dia or 6x62,200
25°6 dia or 6x63,000

TYPE [SC-10]; MIRROR SIZE [mm]; ANGLE [P-P Deg. optical]; FREQUENCY [Hz]
Example: PART NO. SC10-10×10-30-400. This part number specifies the model SC-10 scanner, a 10mm square mirror, a 30° peak to peak optical scan angle and a 400 Hz operating frequency.

TYPE [SC-10-HF]; MIRROR SIZE [mm]; ANGLE [P-P Deg. optical]; FREQUENCY [Hz]
Example: PART NO. SC10-HF-6×6-25-3000.. This part number specifies the model SC-10-HF scanner, a 6mm square mirror, a 25° peak to peak optical scan angle and a 3000 Hz operating frequency.