• 62-40 FOREST AVE, 2nd FLOOR, RIDGEWOOD, NY 11385 • TEL: (718) 456-6000 • FAX: (718) 456-6050 • www.EOPC.com
P.O. BOX 650441 FRESH MEADOWS, NY 11365
SC-3 Sub-Miniature Scanners


  • ONE FIXED FREQUENCY from the range of 100Hz to 1860Hz
  • Scan angle to 50° peak to peak optical
  • Mirror sizes: 5mm diameter, 6mm diameter, 7x7mm and 12x7mm
  • Scanner size (inches):
    SC-3: 0.9x0.5x0.4
    SC-3-SH: 0.55x0.5x0.4
    SC-3-HF: 0.55x0.5x0.4
  • Vertical or horizontal mounting
  • lightweight
  • Low power drive electronics
  • Rugged, no wearing parts
  • Maintenance free
  • High reliability
  • Withstands shock and vibration
  • High frequency stability (to 0.05%)
  • High/low temperature operation (cryo to 1000C)1
  • Vacuum operation to 10-10 Torr1
  • Jitter free operation
  • No radiated electromagnetic interference (EMI)
  • Position output signal available
  • Glass mirrors with enhanced aluminum coating are standard, coating for IR and UV optional1
1 Available as a special order


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optical modulators / choppers / shutters
tuning fork (fixed frequency) choppers
variable frequency choppers
choppers / shutters
rotating wheel (variable frequency) choppers

optical chopping / modulating systems
optical chopping systems locked to ext. clock
optical chopping systems locked in master/slave mode

optical SAFETY shutters
laser safety (interlock) shutters
X-Ray (interlock) shutters

optical shutters, choppers and filters
optical shutters / choppers
optical choppers / shutters
filter selectors

optical scanners and deflectors
resonant (fixed frequency) scanners
beam deflectors

optical scanning / deflecting systems
- optical scanners locked to an external clock signal
- optical scanning systems to generate
a circle or an ellipse or to lock optical scanners
in phase or out of phase

- optical scanning systems to generate
a Raster Scan or Lissajous Patterns

- X,Y raster scanning systems
- 2-axis deflectors

ED Driver
AGC Driver
PLD-1C Driver
PLD-1S Driver
PLD-2C Driver
PLD-2S Driver
PLD-2SXY Driver
PLD-XYG Driver
DCH-40 Driver
DCH-50 Driver
DCH-60 Driver
DSH-10 Driver
DSH-20 Driver
DSH-35 Driver
DSH-65 Driver

other products
Filter selectors
Rotating Wheel Optical Choppers
photo diode amplifiers
o/e and e/o converters
fiber optic multiplexers
fiber optic video links
laser vibrometers
Photodiode Transimpedance Amplifier
Analog / digital fiber links
Optical time domain reflectometers
Optical spectrum detectors
Tuneable laser sources
Variable optical attenuators
Loss test sets
Fiber optic power meters
Light sources
Visual fault locators
Video probes
Fiber identifiers

Data Sheets

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The SC-3 type sub-miniature fixed frequency resonant optical scanners is THE NON-MEMS VERY SMALL SIZE mechanical scanner available. It is an electromagnetically driven moving mirror device, which deflects a light beam with a continuous sinusoidal motion. The mirror assembly is attached at the center of a taut band spring. The scanning frequency range of the SC-3 type scanner, or of the smaller size version SC-3-SH, is from 100Hz to 1860Hz, 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. The standard operating temperature is 0°C to +55°C. Other temperature range and vacuum operation are available upon request.

High device "Q" insures frequency stability 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 which require good imaging with minimal distortion. The scanner is especially suitable for dedicated, high volume, OEM industrial applications. The SC-3 type scanner can easily be incorporated in small size and portable instruments.

The operation of the scanner at the resonant frequency is sustained by a positive feedback amplifier type ED driver or the AGC driver. The AGC driver provides a higher amplitude stability (0.01%) and a position output signal.

Applications include: Can be used as an intra cavity Q-Switch, confocal microscopy, cancer diagnosis, ophthalmic imaging, adaptive optics, X-ray technology, DNA sequencing, brain imaging, detecting cognitive recognition, dentistry, dermatology, developmental biology, NDE/NDT, oncology and high resolution imaging of optical coherence microscopy (OCM), laser scanners, image and pattern forming and recognition, high resolution printing, fluorescent microscopy, confocal microscopy, semiconductor imaging, web inspection, biomedical imaging, quality inspection, process verification, mask inspection, machine vision and outer space and environmental to name a few.

ONE FIXED FREQUENCY from the range of 100Hz to 1000Hz
The following should serve as guide lines only:
 (Hz) +/- 10% 
 SC-3-2 or SC-3-SH-2 
 6 dia
 SC-3-2 or SC-3-SH-2 
 SC-3-2 or SC-3-SH-2 
 SC-3-3 or SC-3-SH-3 
 6 dia
 SC-3-3 or SC-3-SH-3 
 SC-3-3 or SC-3-SH-3 
 SC-3-4 or SC-3-SH-4 
 6 dia
 SC-3-4 or SC-3-SH-4 
 SC-3-4 or SC-3-SH-4 
 SC-3-5 or SC-3-SH-5 
 6 dia
 SC-3-5 or SC-3-SH-5 
 SC-3-5 or SC-3-SH-5 

SC-3 size (in inches): 0.9 x 0.5 x 0.4
SC-3-SH size (in inches): 0.55 x 0.5 x 0.4
Scan frequency range: 100 Hz to 1000 Hz
Frequency accuracy: +/-10% at 25°C, closer accuracy available upon request
Scan angle: to 50° peak to peak optical as a function of frequency and mirror size.
Sizes: 6mm diameter, 7×7mm, 12×7mm
Thickness: 1.0mm, standard; other thickness values available
Flatness: 1/4 wavelength (for 6mm and 7x7mm mirrors), 1/2 wavelength for 12x7mm mirror
Surface quality: scratch and dig: 60-40.
Drive coil resistance: 950 ohms
Sense coil resistance: 950 ohms
Cable lengthof the SC-3-SH: 8 inches
Connector: female 4 pin plug on 0.1 inch centers, Molex P/N 22-01-3047 or equiv.


TYPE [SC-3 or SC-3-SH]; MIRROR SIZE [mm]; ANGLE [P-P Deg. optical]; FREQUENCY [Hz]
Example: PART NO. SC3-7x7-20-600. This part number specifies the model SC-3 scanner, a 7mm x 7mm mirror, a 20° peak to peak optical scan angle and a 600 Hz operating frequency.

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