Optical Galvanometers

  • Update:May 07, 2020
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The exceptional dynamics OSSL Series scanners are the result of years of experience in developing and manufacturing scanners scan systems and scan solutions for industrial use.

We are promoting laser lamps, galvos, marking heads, green laser pointers etc till the stock is sold out. Pleasee click here.

1. OSJC Series Galvanometer Optical Scanners

OSJC series galvanometer scanners are designed by adopting the magnet-moving structure, combining the most advanced international photoelectric sensor technology and the PDM control mode, and using the military-grade processes and technologies.

Model OSJC-2203 & OSJC-8330

Part number

OSJC-2203

OSJC-8330

Speed

 

 

Marking Speed (1), mm/s

7000

1000

Positioning Speed, (1), mm/s

12000

1000

Writing Speed (2), (cps)

520

125

Step Response Time(1% of full scale), us

285

940

Step Response Time(10% of full scale), us

890

1500

Tracking Error Time, us

≤160

≤440

Precision and Error

 

 

Linearity

99.9%

99.9%

Repeatability (RMS), urad

<8

<8

Gain Error, mrad

<5

<5

Zero Offset, mrad

<5

<5

Long-term Drift Over 8 Hours, mrad

<0.5

<0.5

Scale Drift, ppm/oC

<40

<40

Zero Drift, urad/ oC

<15

<15

Scan Mirror Damage Threshold

 

 

K9 Mirror, J/cm^2

9.1

9.1

Silicone Mirror, J/cm^2

10

10

Laser Wavelength (3), nm

10600/1064/355

10600/1064/355

Power and Signal

 

 

Input Voltage, VDC

±15

±15

RMS Current, A

2

2

Interface Signal (Digital)

XY2-100

XY2-100

Interface Signal (Analog), V

±5

±5

Peak Current, A

8

8

Position Signal Input Resistance, kΩ

10±1%

10±1%

Machinery Scan Angle (4), o

±15

±15

Working Current, Temperature, Dimension

 

 

Working Temperature, oC

0--45

0--45

Storage Temperature, oC

-10--+60

-10--+60

Suitable Laser Beam Size, mm

10

30

Galvanometer Scanner Dimension (DXL), mm

D22X35.4+D31X17.6

D38X81.5+D47X20.5

Galvanometer Scanner Weight, g

120

750

Note: The above data are tested after 30 min warm-up.

  1. With F-theta objective, F=160mm, marking 2mm height single character
  2. With F-theta objective, F=160mm, marking 1mm height single character per
  3. second Special wavelength coating film can be customized
  4. If any special requirement, customization is available.

Model OSJC-8220

Working Temperature

0-45℃

Linearity

99.9%

Setting Time

≤0.8ms

Scale Drift

<40PPM/℃

Zero Drift

<15μRad./℃

Long-term Drift Over 8 Hours

<0.5mRad

RMS Current

3.5A

Peak Current

20A(Max)

Maximum Scan Angle

±15°

Storage Temperature

-10 to +60℃

Resolution

12μrad

Repeatability

8μrad

Input Aperture

20.0mm

Beam Displacement

26mm

Motor Weight

280g

Frequency

≤500Hz

Servo Driver Board Specification

Input Voltage

±24VDC

 

Interface Signal

Digital

XY2-100

Analog

±5V, ±10V

Analog Signal Input Resistance

200KΩ±1%(Differential input)

Position Signal Input Resistance

1KΩ±1%

Position Signal Input Scale Factor

0.33V/°

Position Signal Output Scale Factor

0.33V/°

Working Temperature

0-45℃

Dimension(DXL)

D28X60+D36X19mm

2. OSST Series Galvanometer Optical Scanners

Part number

OSST8162

OSST8161

OSST8063

Optical apertures supported, two-axis, diameter

8mm

10mm

12mm

Response time

0.2ms at 5mm beam

0.45ms at 10mm beam

0.6ms at 12mm beam

Max mechanical rotation angle

±20-30°

±20°

±20°

Linearity

99.9%, over ±20°

99.9%, over ±20°

99.9%, over ±20°

Average current

0.9A

0.9A

1.5A

Peak current

5A

5A

10A

Coil resistance

3Ω±10%

1.8Ω±10%

2Ω±10%

Coil inductance

180μH ±10%

280μH ±10%

260μH ±10%

Operation temp

0-40 oC

0-40 oC

0-40 oC

Weight

80g

105g

180g

Dimension

D15x31+D15.4x11mm

D22X36+D31x8.6+D21x9mm

D22x36+D31x8.6+D21x9mm

Axis diameter

2.1mm

2.1mm

2.1mm

Drive board

Matched

Matched

Matched

Application

Laser show, stage lighting

Super speed fly marking

Laser marking, rapid prototype, trimming, radar etc.

 

Part number

OSST8166

OSST8061

OSST3808

Optical apertures supported, two-axis, diameter

6mm

20mm

35mm

Response time

0.3ms at 5mm beam

0.7ms at 20mm beam

1ms at 35mm beam

Max mechanical rotation angle

±20°

±20°

±20°

Linearity

99.9% over ±20°

99.9% over ±20°

99.9% over ±20°

Average current

0.6A

2A

2.2A

Peak current

1.5A

15A

10A

Coil resistance

2.3Ω±10%

2.1Ω±10%

2Ω±10%

Coil inductance

420μH ±10%

360μH ±10%

260μH ±10%

Operation temp

0-40 oC

0-40 oC

0-40 oC

Weight

26g

210g

520g

Dimension

D10x16+D13x3+D15x10.5mm

D28x58+D36x15+D25x5mm

D38X76+D36x5+D25x5mm

Axis diameter

1.1mm

3.3mm

7mm

Drive board

Matched

Matched

Matched

Application

High speed fly marking, high speed marking.

Precise marking, prototype, trimming, radar.

Precise marking, prototype, trimming, radar.

Remarks:

3. OSSL Series Galvanometer Optical Scanners

The exceptional dynamics OSSL Series scanners are the result of years of experience in developing and manufacturing scanners, scan systems and scan solutions for industrial use. The motor section of each OS

SL series is ideally matched to the inertial load presented by the mirror. The optimized rotor design is largely responsible for the favorable dynamic properties and resonance characteristics. Axially pre-loaded precision ball bearings guarantee a backlash-free rotor assembly with high stiffness and low friction. Special attention has been paid to long bearing lifetimes.

The optical position detector system is characterized by high resolution, as well as good repeatability and drift values. The scanners are equipped with heaters and temperature sensors. This allows temperature stabilization for further enhancing long-term stability, even under fluctuating ambient conditions.

We provide all OSSL series scanners with suitable mirrors and mirror coatings for all typical laser wavelengths. In addition to very good reflection properties, the mirrors are also optimized with respect to inertial load, stiffness and flatness. The high quality of OSSL Series galvanometer scanners enables error-free operation in long-term and continuous use. Comprehensive measurements on custom test benches assure that the highest level of quality is continuously maintained.

Mounting

The rotationally symmetrical flange facilitates mounting. The scanner housing must be electrically insulated from the machine structure. Mirror stops are already integrated into the scanners. The mirror is directly bonded to the scanner’s shaft.

OSSL Series Galvanometer Scanners Specifications

Part number OSSL-XS OSSL-T OSSL-S OSSL-M OSSL-L
Rotor inertia 0.028 g·cm2 0.125 g·cm2 0.34 g·cm2 1.2 g·cm2 5.1 g·cm2
Torque constant 2.3 N·mm/A 5.3 N·mm/A 7.5 N·mm/A 15 N·mm/A 24 N·mm/A
Coil resistance 3.9 Ω 2.8 Ω 2.7 Ω 2.2 Ω 0.85 Ω
Coil inductance 90μH 145μH 165μH 275μH 300μH
Max. RMS current (max. case temp. 50°C) 1.8 A 2.2 A 2.5 A 3.5 A 5 A
Peak current 6 A 10 A 10 A 10 A 15 A
Weight With cable 49 g 72 g 263 g 340 g 425 g
Weight Without cable 23 g 46 g - - -
Connector SD-9 socket SD-9 socket SD-15 socket SD-15 socket SD-15 socket
Inertial Load recommended 0.02 g·cm2 0.1 g·cm2 0.35 g·cm2 1.2 g·cm2 8 g·cm2
Inertial Load maximum 0.05 g·cm2 0.5 g·cm2 1.5 g·cm2 6 g·cm2 25 g·cm2
Recommended Aperture 7mm 8.5mm 10mm 14mm 20-30mm
Step Response Time (with SSV30) 1% of full scale (settling to 1/1000 of full scale, with recommended inertial load) 0.23 ms 0.24 ms 0.25 ms 0.40 ms 0.8 ms
Dynamic Performance (with SSV30) Tracking error 0.11 ms 0.12 ms 0.14 ms 0.24 ms 0.35 ms
Recommended driver microSSV microSSV miniSSV microAIO SSV30 miniSSV SSV30 SSV30

OSSL Series Scanner Common Specifications(all angles are in mechanical degrees)

Optical Performance Maximum scan angle ±12°
Nonlinearity < 0.4 % ptp
Offset drift < 15μrad/K
Gain drift < 50 ppm/K
Repeatability 5μrad
Position Detector (PD) Typical PD output signal - differential mode –11μA/°
Typical PD output signal - common mode –140μA
PD supply voltage 6.5 V - 11.5 V
PD supply current 35 mA - 60 mA
Heater Heater resistance 120 Ω
Temperature sensor resistance 1000Ω@ 25°C,578Ω@40°C
Cable   0.22 m long
Installation   electrically insulated
Operating Temperature   25±20°C
Electrical Connections (with SSV30) Power supply voltage ±(15+1.5) V DC
Input signals Alternative:±4.8 V;±9.6 V; ±4.8 mA;±9.6 mA
Output signals 3 status signals, TTL level
Long-term drift over 8 hours (with SSV30) with temperature stabilization (after warm-up) < 0.6 mrad optical
without temperature stabilization <0.3mrad optical plus temperature induced gain and offset drift
Operating Temperature (with SSV30)   25±10°C

4. CTI Series Optical Galvanometers

The combination of our Moving Magnet Actuator technology and our innovative patented Advanced Optical Position Detector design offers the highest positioning speed and excellent accuracy in the smallest, lower cost closed loop galvanometers. Scanning system applications can be designed and optimized for speed, size, cost and accuracy with typical beam diameters in the 1 to 3mm range.

The Moving Magnet Scanner's Positioning Speed comes from advanced galvanometer and actuator design for the highest system resonant frequency and RMS power capability. The higher resonant frequency of our moving magnet actuator design, the intense magnetic field strength of state of the art neodymium-iron-boron magnets and our advanced servo driver options allow superior system bandwidths, step response times and repetition rates with excellent wobble and jitter performance.

Our newly patented advanced optical position detector design coupled with the positioning precision of the moving magnet actuator provides excellent repeatability and accuracy . The advanced optical position detector is designed to provide high positioning linearity, repeatability and stability over time and temperature, and lower closed loop galvo cost in the smallest, most compact package.

 Superior product lifetime and reliability result from disciplined design technique, the best in bearing technology and quality manufacturing processes and workmanship. We take great pride in the performance of our products. Our scanner designs are computer modelled and have been life-test proven to billions of cycles of operation. Our high standards of manufacturing quality guarantees the performance consistency that you need to design the high quality systems demanded in today's competitive marketplace.

Galvo Model Step Response Time with mirror Current RMS Max at 50º C Torque Constant Dyne-cm/Amp ± 10% Scale Drift ppm per °C Zero Drift µrad per °C

Beam Aperture

mm

Short Term Repeatability µrad
6200H 130us/3mm 2.3 1.2 x 104 50 15 3-7 8
6210H 100us/3mm 2.4 2.79 x 104 50 15 3-7 8
6215H 175us/6mm 4.1 3.78 x 104 50 15 3-7 8
6220H 195us/5mm 3.9 6.17 x 104 50 15 5-10 8
6231HB 210us/8mm 5.8 1.11 x 105 50 15 8-15 8
6230H 250us/10mm 7.1 1.31 x 105 50 15 8-15 8
6240H 350us/15mm 8.2 2.00 x 105 50 15 12-25 8
6870 0.7ms/15mm 5.3 1.8 x 105 50 15 12-15 8
6880 0.9ms/20mm 7.5 2.54 x 105 50 10 12-30 8
6450 2ms/12mm 1.8 .045 x 106 50 15 12 2
6650 3.5ms/20mm 2.8 0.65 x 106 50 10 20-30 1.5
6900 6ms/50mm 5 1.63 x 106 50 10 50 1.5
6400 8ms/75mm 14 4.5 x 106 50 15 75 2

Recommended Galvos by Beam Aperture

We have the widest range of galvos available in the market giving our customers the flexibility to select a galvo to optimize price, performance, and footprint requirements of their application.  Each galvo model, although ideally suited for a particular aperture, will also operate mirror sets larger and smaller than the optimum mirror set.   In some applications, the user may choose to implement a smaller, less expensive galvo to operate a larger mirror set as a cost-saving strategy while other users may opt for a galvo with "undersized" mirrors to maximize the rotor stiffness for positioning performance considerations.  The chart below lists the popular range of mirror apertures for each galvo model.  Of course, some users also go outside these ranges to fully optimize their application.

For more detailed information on CTI series galvos, please download here.

 Marking HeadsMarking Heads (LSSL),  Marking Heads (LSRM)Marking SoftwareBasics of Laser Scanning 

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