random pattern generator (rpp) industrial (ils) … · compact (cl) random pattern generator (rpp)...

SERIES POWER (mW) WAVELENGTHS (nm) PATTERNSFOCUS AND DOF PERFORMANCE TYPE FEATURES

STREAMLINE (SL)

COMPACT (CL)

RANDOM PATTERN GENERATOR (RPP)

INDUSTRIAL (ILS)

FIRELINE (FL)

TELECENTRIC (TLP)

OPTIONS

1 to 250 405, 450, 520, A, B, C, D, E, F Uniform line, multi-line, Superior beam shaping Separate driver 635, 660, 690, single dot, multi-dots, Rugged and Reliable electronics 785, 808, 830 custom patterns Custom-ready Micron Focus dot matrix External focusing Cosine Correction

1 to 120 405, 450, 520, A, B, C, D, E, F Uniform line, multi-line, Compact, 10 mm OD Separate driver 635, 660, 690, single dot, multi-dots Externally Focusable electronics 785, 808, 830 dot matrix Cosine Correction

Eye Safe 450, 520, 660, 830 A, C, D, Random matrix of dots Up to 100 000 Random Custom FOV or 3B Dots Custom Number Standard version or of Dot Eye safe Custom patterns

500 to 3,000 405, 450, 520, A, C, D, Uniform line, multi-line Compact Size Separate driver 640, 808, 785, Thermally Electrically electronics 810, 830 Cooled Time counter Cosine Correction

1,500 to 670, 680, 690, 808 A, C, D, Uniform line, multi-line High Power up to 15W Time counter 15,000 Thermally Electrically Cosine Correction Cooled

1 to 250 405, 450, 520, Micro focus constant Ultra thin uniform line Constant line thickness Power and Frequency 635, 660, 690, along the entire line at modulation 785, 808, 830 focal plane High Uniformity and line straightness

STRUCTURED LIGHT AND LASER BEAM SHAPING SOLUTIONS

COMPACT LASER MODULEHigh performance, high reliability with superior beam shaping capabilities in a self contained compact laser module for demanding industrial applications.

FEATURES Compact, 10mm Diameter

Externally focusable

Superior beam shaping

High Pointing stability

ESD & Over temperature protected

Up to 2 year warranty

APPLICATIONS Industrial Inspection

Machine Vision

Positioning

56,2 mm

Ø 10 mm

DIODE MODEL FOCUSING & DOF CONFIGURATION AND CONSTANT

WAVELENGTH DIODE WAVELEGNTH OPERATING TYPE A TYPE B TYPE C TYPE D TYPE E BAND (nm POWER (mW) TOLERENCE (nm) CURRENT2 (mA) KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF

4051 35 +5/-5 35 0.68 0.80 1.65 4.74 0.28 0.13 0.98 1.69 2.39 10.00

635 5 +5/-5 50 0.79 0.70 2.58 7.44 0.45 0.22 1.15 1.47 3.75 15.67

10 +8/-4 55 0.96 1.02 2.58 7.44 0.54 0.32 1.39 2.15 3.75 15.67

640 25 +3/-10 80 0.96 1.02 2.29 5.86 0.54 0.32 1.39 2.15 3.33 12.35

45 +5/-5 100 0.96 1.02 2.06 4.73 0.54 0.32 1.39 2.15 2.99 9.98

650 5 +10/-5 48 0.73 0.56 2.38 6.09 0.41 0.18 1.05 1.19 3.46 12.84

10 +10/-5 55 0.73 0.56 2.26 5.46 0.41 0.18 1.05 1.19 3.27 11.51

660 35 +5/-10 90 0.95 0.96 2.52 6.84 0.53 0.30 1.37 2.02 3.66 14.41

50, 100 +5/-5 120,160 1.52 2.47 2.14 4.92 0.85 0.41 2.20 5.22 3.11 10.37

690 35 +5/-10 95 1.15 1.36 2.62 7.10 0.47 0.23 1.66 2.87 3.80 14.96

50 +10/-10 150 1.09 1.22 2.11 4.63 0.44 0.20 1.58 2.57 3.07 9.75 785 75, 120 +10/-10 150, 200 1.57 2.23 2.83 7.25 0.64 0.37 2.28 4.71 4.11 15.27 830 50 +10/-10 115 1.19 1.21 3.00 7.66 0.67 0.38 1.73 16.14 4.35 16.141 6V operation

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Distance from laser [mm]

Beam size at focus Depth of focus

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LONG RANGE

LASER DIODE MODELS AND FOCUSING OPTIONSAt Osela we provide many different focusing options giving you the flexibility to choose the one that best suits your application. The Compact laser is free focusable externally without removing any optics. From the graphs below, note the beam size and Depth of Focus (DOF) values and then multiply by the K constants for the laser diode model and focus option of choice (A, B, C, D or E).

Example: From the graphs at 400 mm working distance, Focus = 140µm, DOF = 36 mm. Than for Laser Model 660 nm 130 mW the line thickness at focus for OPTION A will be 212um (i.e.140 um x 1.52). Its depth of focus will be 88.92mm (i.e. 36mm x 2.47).

MODULATION The Compact laser can be modulated by an external 0 to 5V TTL signal via the white wire. The “T” type modulation is the default input for the Compact laser module.

D (Option)

0 2 4

100%

80%

60%

40%

20%

0%

MODULATION CODE ON OFF

TTL (default) T 0 to 0.5V 0.7 to 5V Reverse TTL RT 0.7 to 5V 0 to 0.5V

Optional: Linear power adjustment on fourth wire, option “D”.

MECHANICAL SPECIFICATIONS

SPECIFICATIONSBore sight (mrad) < 3 mradWavelength Drift ≈ 0.25 nm/ degCPointing Stability < 6 µrad/°CRise/Fall time < 5µ sec, 100% modulation depth (10 Kohm impedance)Protections (Built in) ESD, Over voltage (up to 30 VDC), Over-temp Shutoff (> 45 deg C)Long term Power stability (8 hours) < 3 %, 2 minute warm up timeOperating Voltage 5 ± 0.5VDC (5 to 24 optional)Working Temp Range -10 to to +45 °C (housing)Weight < 20 gPower Supply Cable 18 inches 3 conductors with flying leads

Voltage

Powe

r

OSELA inc. 1860, 32nd Avenue, Lachine, QC, H8T 3J7 Canada [email protected] 514 631.2227 osela.com

COMPACT SINGLE LINE GENERATOR

-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1

1

0.8

0.6

0.4

0.2

0

Normalized Fan angle

Relat

ive in

tens

ity

Relative intensity distributionFan angle defined at 80% intensity clip level

Max deviation ∆ Line shapeBest linear fit

FIG 1 - INTENSITY DISTRIBUTION ALONG THE LINE FIG 2 - LINE STRAIGHTNESS

SPECIFICATIONS

SPECIFICATIONS VALUES

Uniformity Imax – Imin 20% (typical) (line intensity distribution along the line)1 Imax +Imin

Relative intensity clip that defines the fan angle 80%

Contained energy Energy in fan angle In the fan angle total energy ≥95%

Line Straightness ∆ ≤0.1% (deviation from the best linear fit) L (line lenght)

Fan angle 1 to 90° 2

Fan angle tolerance +1.0/-0.5° (FA <30 °) (line diverging angle from the exit of the laser housing) +1.5/-0.5° (FA ≥30°)

1 Uniformity and straightness are measured at 80% of the fan angle.2 Available Fan Angle (°) 1, 5, 10, 15, 20, 30, 38, 45, 60, 75, 90 custom upon demand.

-1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 1.2

1.5

1

0.5

0

-0.5

-1

-1.5

ORDERING CODE CL - XXX - XXX - X X - XX - XXX-XX - XXXXX

Wavelength Diode Power Electronic Focusing Option Fan Angle Multi beams Option

see table see table T A 1, 5, 10 (Optional) SD:

RT B 15, 20 Refer to the Separate

D C 30, 38 Multi-dots and Driver

D 45, 60 Multi-Lines 24V

E 75, 90 page

FIRELINE LASERTEC High Power Direct Semiconductor pattern generator provides high reliability with superior beam shaping for high signal to noise industrial applications.

FEATURES High Power, up to 15 Watt



High pointing and focus stability

Integrated monitoring and modulation features

APPLICATIONS 3D Machine Vision

Outdoor Industrial Inspection

Rail and Road Inspection


MODULATION

S

RS FUNCTION CODE ON OFF

TTL T 0 to 2V 3V to 5V Reverse TTL RT 3V to 5V 0 to 2V

The Fireline can be modulated by an external 0 to 5V signal on PIN#2 of DB15 Connector. The S type modulation comes by default.

Note: One modulation input needs to be selected, S (default), RS, T or RT

0 1 2 3 4

100%

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0%

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LONG RANGE

LASER DIODE MODELS AND FOCUSING OPTIONSAt Osela we provide many different focusing options giving you the flexibility to choose the one that best suits your application. The Fireline laser is free focusable externally without removing any optics. From the graphs below, note the beam size and Depth of Focus (DOF) values and then multiply by the K constants for the laser diode model and focus option of choice (A, C, or D).

Example: From the graphs at 400 mm working distance, Focus = 140μm, DOF = 36 mm. Then for Laser Model 808nm 10W the line thickness at focus for OPTION A will be 124.6um (i.e. 140 um x 0.89). Its depth of focus will be 21.24mm (i.e. 36mm x 0.59).

DIODE MODEL FOCUSING & DOF OPTIONS AND CONSTANT

WAVELENGTH DIODE WAVELEGNTH TYPE A TYPE C TYPE D (nm) POWER (W) TOLERENCE (nm) KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF

670 1.5 ± 10 0.68 0.42 0.39 0.13 0.99 0.89 5 ± 3 0.89 0.59 0.50 0.19 1.29 1.25 808 8 ± 3 0.89 0.59 0.50 0.19 1.29 1.25 10 ± 3 0.89 0.59 0.50 0.19 1.29 1.25 12 ± 3 0.83 0.51 0.47 0.16 1.20 1.08

FIRELINE SINGLE LINE GENERATOR

-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1

1

0.8

0.6

0.4

0.2

0


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SPECIFICATIONS

DB - CONNECTOR


Uniformity Imax – Imin ≤30% (line intensity distribution along the line)1 Imax +Imin (≤25% (typical)

Relative intensity clip that define the fan angle 80%


Line Straightness ∆ ≤0.1% (deviation from the best linear fit)1 L (line lenght)


+1.0, -2° FA <60 °

1 Uniformity and straightness are measured at 80% of the fan angle.2 Available Fan Angle (°) 10, 15, 20, 30, 38, 45, 60, 75, custom upon demand.

-1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 1.2

1.5

1

0.5

0

-0.5

-1

-1.5

5

10 615 11

1

1. GND 2. Modulation3. Laser diode current monitoring4. Laser power monitoring5. Laser diode temperature monitoring

6. NC7. NC8. NC9. Heat sink Temperature monitoring 10. TEC Voltage monitoring

11. Current/Voltage monitoring12. Laser diode temperature adjusted monitoring13. SDA 14. SCL 15. GND} I²C Bus


ORDERING CODE FL - XXX - XXX - X X - XX - XXX-XX

Wavelength Diode Power Electronic Focusing Option Fan Angle Multi beams

see table see table S A (Optional)

RS C 15, 20 Refer to the

T D 30, 38 Multi-dots and

RT 45, 60 Multi-Lines

75 page

SPECIFICATIONSBore sight (mrad) < 3 mradWavelength Drift ≈ 0.1 nm over entire operating temperaturePointing Stability < 6 μrad/°CModulation Rise/Fall time < 10μ sec, 100% modulation depth (10 Kohm input impedance)Protections (Built in) ESD, Over voltage (up to 30 VDC), Over-temp Shutoff (> 50 deg C)Long term Power stability (8 hours) < 3 %, 2 minute warm up timeOperating Voltage 12V DCWorking Temp Range -10 to to +50 °C Weight < 1.8 kgPower Supply Cable 18 inches 3 conductors Alpha wire 5610B2001, with flying leadsESD Protection Level 4


ILS: INDUSTRIAL LASER SYSTEMTEC High Power Direct Semiconductor pattern generator provides high reliability with superior beam shaping for high signal to noise industrial applications.

FEATURES High Power in a Compact Size



High Pointing stability

Integrated monitoring and modulation features

APPLICATIONS Machine Vision

Industrial Inspection

Bio-medical


MODULATION

S



The ILS can be modulated by an external 0 to 5V signal on PIN#2 of DB9 Connector. The S type modulation comes by default.


0 1 2 3 4

100%

80%

60%

40%

20%

0%

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LONG RANGE

LASER DIODE MODELS AND FOCUSING OPTIONSAt Osela we provide many different focusing options giving you the flexibility to choose the one that best suits your application. The ILS laser is free focusable externally without removing any optics. From the graphs below, note the beam size and Depth of Focus (DOF) values and then multiply by the K constants for the laser diode model and focus option of choice (A, C, or D).

Example: From the graphs at 400 mm working distance, Focus = 140μm, DOF = 36 mm. Than for Laser Model 670nm 500 mW the line thickness at focus for OPTION A will be 133um (i.e. 140 um x 0.95). Its depth of focus will be 29.16mm (i.e. 36mm x 0.81).

DIODE MODEL FOCUSING & DOF OPTIONS AND CONSTANT

WAVELENGTH DIODE WAVELEGNTH TYPE A TYPE C TYPE D (nm) POWER (mW) TOLERENCE (nm) KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF

375 200 ±5 0.5 0.47 0.28 0.15 0.73 1 100 ±10 0.64 0.72 0.36 0.23 0.93 1.52 405 175 ±5 0.64 0.72 0.36 0.23 0.93 1.52 500 ±5 0.45 0.3 0.25 0.09 0.65 0.62 450 500 ±10 0.64 0.65 0.36 0.21 0.94 1.38 1000 ±10 0.64 0.65 0.36 0.21 0.94 1.38 488 200 ±5 0.65 0.62 0.37 0.19 0.94 1.3 5006 ±10 0.95 0.81 0.53 0.26 1.37 1.7 670 1000 ±10 0.68 0.42 0.39 0.13 0.99 0.89 1500 ±10 0.68 0.42 0.39 0.13 0.99 0.89 500 ±3 0.83 0.51 0.47 0.16 1.2 1.08 810 1000 ±3 0.83 0.51 0.47 0.16 1.2 1.08 2000 ±3 0.83 0.51 0.47 0.16 1.2 1.08 3000 ±3 0.83 0.51 0.47 0.16 1.2 1.08

ILS SINGLE LINE GENERATOR

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1

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0.6

0.4

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0


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SPECIFICATIONS

DB - CONNECTOR


Uniformity Imax – Imin ≤30% (line intensity distribution along the line)1 Imax +Imin (≤25% (typical)

Relative intensity clip that define the fan angle 80%


Line Straightness ∆ ≤0.1% (deviation from the best linear fit)1 L (line lenght)


+1.0, -2° FA <60 °

1 Uniformity and straightness are measured at 80% of the fan angle.2 Available Fan Angle (°) 1, 5, 10, 15, 20, 30, 38, 45, 60, 75, custom upon demand.

-1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 1.2

1.5

1

0.5

0

-0.5

-1

-1.5

5. Laser diode temperature temperature

8. External Key +

2. Modulation

9. Internal temperature

3. Diode current monitor

6. Interlock

4. Optical Power monitor

7. External Key -

1. Ground


ORDERING CODE SL - XXX - XXX - X X - XX - XXX-XX - XXXXX

Wavelength Diode Power Electronic Focusing Option Fan Angle Multi beams Option

see table see table S A 5, 10 (Optional) SD

RS C 15, 20 Refer to the

T D 30, 38 Multi-dots and

RT 45, 60 Multi-Lines

75 page

SPECIFICATIONSBore sight (mrad) < 3 mradWavelength Drift ≈ 0.1 nm over entire operating temperaturePointing Stability < 6 μrad/°CModulation Rise/Fall time < 5μ sec, 100% modulation depth (10 Kohm input impedance)Protections (Built in) ESD, Over voltage (up to 30 VDC), Over-temp Shutoff (> 50 deg C)Long term Power stability (8 hours) < 3 %, 2 minute warm up timeOperating Voltage 10 - 25V DCWorking Temp Range -10 to to +50 °C (housing)Weight < 0.75 kgPower Supply Cable 18 inches 3 conductors Alpha wire 5610B2001, with flying leadsESD Protection Level 4


1.115 ±0.01028.32 ±0.25

2.480 ±0.01062.99 ±0.25

0.2305.84 REF.

2.000 ±0.01550.80 ±0.38

0.940 ±0.01523.88 ±0.38

1.880 ±0.01047.75 ±0.25

0.3007.62 REF.

5.725 ±0.015145.42 ±0.38

0.975 ±0.01524.76 ±0.38

0.675 ±0.00517.14 ±0.13

4.375 ±0.005111.12 ±0.13

1.094 ±0.00527.78 ±0.13

2.188 ±0.00555.56 ±0.13

� 0.150 [3.8] � 0.242 [6.1] � 0.156 [4.0]4 HOLES

18" [457] POWER CABLE

EXTERNAL FOCUS

RANDOM PATTERN PROJECTORStructured lighting laser depth sensing projector, in a self contained laser module for 3D machine vision applications.

FEATURES Industrial design

Standard or eye safe version

Etched in glass diffractive optic


Up to 2 year warranty

APPLICATIONS 3D Stereo Vision

Gesture recognition

Volume measurement

Bin Picking

Depth Sensing

Palletizing

UP TO 57,446

RANDOM DOTS


WHAT IS RPP ?

Random Pattern Projector (RPP) is a divergent dot matrix pattern of NxM pixels with a ratio of bright and dark pixels

of approximately 15%. Each bright pixel is surrounded by at least 8 dark pixels with no contact between bright pixels.

The bright pixels distribution is pseudo-random and the pattern is symmetric with respect to the center. Multiple laser

projectors can be tiled to obtain a larger area while maintaining the same random pattern.

Zoom of RPP pixels structured

OPTI

CAL

MOD

ULAT

ION

ELEC

TRIC

AL/E

NVIR

ONM

ENTA

L

SPECIFICATIONS

MODULATION

S



The Streamline laser can be modulated by an external 0 to 5V extrenal signal through the white wire. The S type modulation comes by default with the Streamline Module.


0 1 2 3 4

100%

80%

60%

40%

20%

0%

STANDARD EYE SAFE

Total power in the “0” order <5% <0.5%

Pattern uniformity (except “0” order) <35%

Bore sight (mrad) <3 mrad

Wavelength Drift approx 0.25 nm/ degC

Pointing Stability <6 μrad/°C

Rise/Fall time (usec) <5

Depth (%) 100

Input Impedance (Kohm) >10

Intensity Modulation Linear (≈0.5-4VDC), OPTION: TTL

Protections (Built in) ESD, Over voltage (up to 25 VDC), Over-temp Shutoff (>45 deg C)

Warm up time < 2 minute

Long term Power stability (8 hours) <+/- 3 %

Operating Voltage 5± 0.5V (4.5 to 30V with 24V option)

Operating Current <250mA, depending on diode

Working Temp Range -10 to +48 °C

Weight <0.25 Kg

Power Supply Cable Belden PN: 9533, 18 inches with flying leads

Warranty Up to 2 year

FOCUSING OPTIONSThe focusing of the laser is very important parameter as it is directly proportional to the resolution one can attain for machine vision applications. It is important to note the relationship between focus and depth of focus, the tighter the beam size at focus that can be attained the smaller the depth of focus. Depth of focus is defined as the distance where the beam size remains within 1.4 times its minimum.

At Osela we provide many different focusing options giving you the flexibility to choose the one that best suits your application. The RPP laser is focusable by the user without removing the RPP optic. From the graphs below note the beam size and Depth of Focus (DOF) values and then multiply by the K constants for the laser diode model and focus option of choice.

Example: From the graphs at 400 mm working distance, Focus = 140μm, DOF = 36 mm. Then for Laser Model 660 nm 130 mW the beam at focus for OPTION A will be an ellipse having a dimension of 212.8 by 299.6 um (i.e.140 um x 1.52, 140 um x 2.14). Its Depth of focus will be 88.92mm by 177.12 mm (i.e. 36mm x 2.47, 36mm x 4.92) respectively. Also note the beam size and depth of focus is noted for the center beam only.

DIODE MODEL FOCUSING & DOF CONFIGURATION AND CONSTANT

WAVELENGTH WAVELEGNTH OPERATING

TYPE A TYPE C TYPE D

BAND (NM) TOLERENCE (NM) CURRENT1 (MA) FAST AXIS SLOW AXIS FAST AXIS SLOW AXIS FAST AXIS SLOW AXIS

KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF KFOCUS KDOF

660 +5/-5 200 1.52 2.47 2.14 4.92 0.62 0.41 0.88 0.82 2.20 5.22 3.11 10.37

830 +10/-10 240 1.03 0.91 3.37 9.72 0.58 0.29 1.90 3.08 1.50 1.93 4.90 20.48



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LONG RANGE Depth of focusBeam size at focus

Osela offers two versions of its RPP pattern projector, the Standard (RPP) and Eye Safe (RPPES). The standard version provides you with the highest overall efficiency but with an intense central dot of < 5% thereby having a IEC60825-1 safety rating of 3B. The RPPES has slightly less overall efficiency but with the added advantage of being IEC 60825-1 Class 1 eye safe.

MODEL SAFETY CLASS CENTRAL DOT STANDARD 3B >5 mW @ 660 nm >3.64 mW @ 830 nm EYE SAFE 1 <0.39 mW @ 660nm <0.71 mW @ 830nm


ORDERING CODE SL - XXX - X X - XX - XXXXX

Wavelength Electronic Focusing Option RPP type Option

660 S A See table SD

830 RS B 24V

T C

RT D


AVAILABLE RPP MODELS

MODEL OPERATING WAVELENGTH NUMBER OF DOTS FIELD OF VIEW

STANDARD SAFE EYE RPP008 660nm 980 12° x 12° RPP009 660nm 5625 10° x 10° RPP010 830nm 980 30° x 30° RPP011 660nm 980 20° x 20° RPP013 830nm 5625 25° x 25° RPP014 RPP014ES 660nm 13 410 35° x 35° RPP015 RPP015ES 830nm 13 410 45° x 45° RPP016 RPP016ES 660nm 23 880 35° x 35° RPP017 RPP017ES 830nm 57 446 45° x 45° RPP018 RPP018ES 830nm 23 880 45° x 45°

2.68 ±0.01568.1 ±0.4

CLAMPING AREA

0.78019.8

0.750 +0.000-0.002

19.05 +0.00-0.05

ADJUSTMENT POT(OPTION)

LED

CABLE LENGTHS 18" STANDARDAND CUSTOM AVAILABLE

EXTERNAL FOCUS

0.750 +0.000-0.002

19.0 +0.0-0.1

CLAMPING AREA

1.43 ±0.01536.3 ±0.4

0.78019.8


1.600 ±0.01540.6 ±0.4

0.750 +0.000-0.002

19.0 +0.0-0.1

EXTERNAL FOCUS

CABLE LENGTHS 6" STANDARDAND COSTOM AVAILABLE

Standard Separate Driver

2.68 ±0.01568.1 ±0.4

CLAMPING AREA

0.78019.8

0.750 +0.000-0.002

19.05 +0.00-0.05

ADJUSTMENT POT(OPTION)

LED


EXTERNAL FOCUS

0.750 +0.000-0.002

19.0 +0.0-0.1

CLAMPING AREA

1.43 ±0.01536.3 ±0.4

0.78019.8


1.600 ±0.01540.6 ±0.4

0.750 +0.000-0.002

19.0 +0.0-0.1

EXTERNAL FOCUS

CABLE LENGTHS 6" STANDARDAND COSTOM AVAILABLE

Standard Separate Driver

(SD option)


TOP HAT BEAM SHAPERA self-contain input beam adaptable module to easily convert a laser beam to an uniform Top Hat profile.

FEATURES Laser beam size adaptable up to ±20%

Compensates for input beam tolerances

Refractive, efficiency >97%

Achromatic

Free space or fiber coupled

Suitable for custom specifications

APPLICATIONS Flow cytometry

DNA sequencing

Micromachining

Confocal microscopy

54 mm

Osela’s Top Hat Module efficiently transforms a freespace laser beam or laser beam from a fiber into a uniform slow varying profile with no high frequency noise. The Top hat module is based on all glass optics providing a Top Hat profile at the focal plane of an imaging system.

The Top Hat dimension at the image plane is directly proportional to the the effective focal length, f, of your imaging system:

Top Hat Dimension = K * F

Where F is the focal length and K is a constant for specific Top Hat model. It can be offered with an internal imaging lens (model ITH) or without (model TH) to be used with an external imaging lens system (i.e. microscope objective).

ITEM SPECIFICATION CONDITION

Input beam size 0.5 to 4.0mm At 1/e2

Input beam size adaptability ±20% From selected beam size

Operating wavelength 250 to 1300nm AR coating needs to be considered

Top Hat size constant (K) 0.001 to 0.6

Cv Uniformity

<1% for fiber version TEM00 beam

<2% for free space

Contained energy >70% Over the region of interest

Efficiency >95% <97% of diverging TH

Glass material Fused silica Other material upon demand

Imaging lens 14, 20 30, 40 60, 75, 80 or 100mm Other focal lengths upon demand

SPECIFICATIONS

Top Hat (TH) Beam Shape adaptor

External Imaging Lens

Uniform Top Hat profile

Imaged Top Hat (ITH) Beam Shape adaptor with internal imaging lens

Laser source with beam size tolerance (free space or filer)

Input Beam with ±20% beam size compensation


TOP HAT PROFILES


ORDERING CODEModel - Wavelength - Input beam size - Constant - Image lens - Option

ITH 250 0.5 0.001 14, 20, 30 FS: Free space

TH to to to 40, 60, 70 FC/APC:

1300nm 4.0mm 0.6 80, 100 Fiber input

FIBER INPUT OPTIONFC/APC FIBER

TOP HAT AXIS PROFILE,CV UNIFORMITY <1%

-150 -100 -50 0 50 100 150

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Position [um]

GAUSSIAN AXIS PROFILE

-15 -10 -5 0 5 10 15

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Position [um]

Real profiles from a 405 nm, 100 mw free spaced laser focused at 40mm

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