Overview
LEXT™ OLS5100 3D Laser Scanning Microscope
Laser Microscope for Material Analysis
Smart Workflow, Faster Experiments
Built for failure analysis and material engineering research, the OLS5100 laser microscope combines exceptional measurement accuracy and optical performance with smart tools that make the microscope easy to use. Precisely measure shape and surface roughness at the submicron level quickly and efficiently to simplify your workflow with data you can trust.
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Easier Material Engineering and Failure Analysis ExperimentsThe Smart Experiment Manager makes your submicron 3D observation and failure analysis experiment workflows simpler by automating previously time-consuming tasks.
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Guaranteed Measurement Accuracy
LEXT microscope objectives deliver highly accurate measurement data. Paired with the Smart Lens Advisor, you can acquire accurate data you can be confident in.
- Guaranteed measurement accuracy*
- Renowned Olympus optics reduce aberration to capture the correct shape of your sample throughout the entire field of view
- Smart Lens Advisor helps you choose the right objective lens for your roughness measurement

Easy Laser Scanning MicroscopyUsing the microscope is easy for novice and experienced users thanks to thoughtfully designed software.
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Service and Support You Can TrustFrom calibration to training, we offer a broad portfolio of services to help you maintain optimal device performance. Evident service contracts are:
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Software
Simple Material Engineering and Failure Analysis Experiment Management
Managing experiment conditions when testing new materials is complicated, so the OLS5100 laser microscope’s Smart Experiment Manager simplifies the process by automating key steps, such as creating the experiment plan.
- Complete your measurement tasks up to 30% faster*
- Scan plan is autopopulated with data as it’s acquired
- Don’t waste time transcribing data—the software does it for you
*Compared with OLS5000
Easy Experiment Condition Data Organization
You can click on each cell in the experiment plan, and the software will automatically generate a file name that contains the evaluation conditions for easy record keeping. Each file contains the associated images and data.

Find Data Problems Easily
A color map helps you understand your experiment data and verify that no data are missing and there are no errors. If there’s a problem, you can find and fix it earlier in the process.

Choose the Right Objective Lens
The Smart Lens Advisor helps you choose the right objective lens for your surface roughness measurement application. Enter some basic information—such as the field of view and the lens you want to use—and the Advisor will tell you how suitable it is for the application.
Easy Data Acquisition
Experienced and novice users alike can acquire data quickly and easily with the Smart Scan II feature. Place the sample on the stage, press the start button, and the microscope does the rest.


Specifications
Main unit
Model | OLS5100-SAF | OLS5100-SMF | OLS5100-LAF | OLS5100-EAF | ||
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Total magnification | 54x–17,280x | |||||
Field of view | 16 µm–5,120 µm | |||||
Measurement principle | Optical system |
Reflection-type confocal laser scanning laser microscope
Reflection-type confocal laser scanning laser-DIC microscope Color Color-DIC | ||||
Measurement principle | Light receiving element |
Laser: Photomultiplier (2 channels)
Color: CMOS color camera | ||||
Height measurement | Display resolution | 0.5 nm | ||||
Height measurement | Dynamic range | 16 bits | ||||
Height measurement | Repeatability σn-1*1 *2 *5 | 5X: 0.45 μm, 10X: 0.1 μm, 20X: 0.03 μm, 50X : 0.012 μm, 100X : 0.012 μm | ||||
Height measurement | Accuracy *1 *3 *5 | 0.15+L/100 μm (L:Measuring length[μm]) | ||||
Height measurement | Accuracy for stitched image *1 *3 *5 | 10X: 5.0+L/100 μm, 20X or higher: 1.0+L/100 μm (L: Stitching length [μm]) | ||||
Height measurement | Measurement noise (Sq noise) *1 *4 *5 | 1 nm (Type) | ||||
Width measurement | Display resolution | 1 nm | ||||
Width measurement | Repeatability 3σn-1 *1 *2 *5 | 5X: 0.4 μm, 10X: 0.2 μm, 20X: 0.05 μm, 50X: 0.04 μm, 100X: 0.02 μm | ||||
Width measurement | Accuracy *1 *3 *5 | Measurement value +/- 1.5% | ||||
Width measurement | Accuracy for stitched image *1 *3 *5 | 10X: 24+0.5L μm, 20X: 15+0.5L μm, 50X: 9+0.5L μm, 100X: 7+0.5L μm (L: Stitching length [mm]) | ||||
Maximum number of measuring points in a single measurement | 4096 × 4096 pixels | |||||
Maximum number of measuring points | 36-megapixels | |||||
XY stage configuration | Length measurement module | • | NA | NA | • | |
XY stage configuration | Operating range | 100 × 100 mm (3.9 × 3.9 in.) Motorized | 100 × 100 mm (3.9 × 3.9 in.) Manual | 300 × 300 mm (11.8 × 11.8 in.) Motorized | 100 × 100 mm (3.9 × 3.9 in.) Motorized | |
Maximum sample height | 100 × 100 mm (3.9 × 3.9 in.) | 30 mm (1.2 in.) | 30 mm (1.2 in.) | 210 mm (8.3 in.) | ||
Laser light source | Wavelength | 405 nm | ||||
Laser light source | Maximum output | 0.95 mW | ||||
Laser light source | Laser class | Class 2 (IEC60825-1:2007, IEC60825-1:2014) | ||||
Color light source | White LED | |||||
Electrical power | 240 W | 240 W | 278 W | 240 W | ||
Mass | Microscope body | Approx. 31 kg (68.3 lb) | Approx. 32 kg (70.5 lb) | Approx. 50 kg (110.2 lb) | Approx. 43 kg (94.8 lb) | |
Mass | Control box | Approx. 12 kg (26.5 lb) |
*1 Guaranteed when used in constant temperature and constant-temperature environment (temperature: 20˚C±1˚C, humidity: 50%±10%) specified in ISO554(1976), JIS Z-8703(1983).
*2 For 20x or higher, when measured with MPLAPON LEXT series objectives.
*3 When measured with dedicated LEXT objective.
*4 Typical value when measured with MPLAPON100XLEXT objective, and may differ from the guaranteed value.
*5 Guaranteed under Olympus Certificate System.
** The OS license of Window 10 has been certified for the microscope controller provided by olympus. Therefore, Microsoft's license terms are applied and you agree to the terms.Please refer to the following for Microsoft license terms.
https://www.microsoft.com/en-us/Useterms/Retail/Windows/10/UseTerms_Retail_Windows_10_english.htm
Objectives
Series | Model | Numerical Aperture (NA) | Working Distance (WD) (mm) |
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UIS2 objective lens | MPLFLN2.5x | 0.08 | 10.7 |
MPLFLN5x | 0.15 | 20 | |
Dedicated LEXT objective lens (10X) | MPLFLN10xLEXT | 0.3 | 10.4 |
Dedicated LEXT objective lens (high-performance type) | MPLAPON20xLEXT | 0.6 | 1 |
MPLAPON50xLEXT | 0.95 | 0.35 | |
MPLAPON100xLEXT | 0.95 | 0.35 | |
Dedicated LEXT objective lens (long working distance type) | LMPLFLN20xLEXT | 0.45 | 6.5 |
LMPLFLN50xLEXT | 0.6 | 5.2 | |
LMPLFLN100xLEXT | 0.8 | 3.4 | |
Super long working distance lens | SLMPLN20x | 0.25 | 25 |
SLMPLN50x | 0.35 | 18 | |
SLMPLN100x | 0.6 | 7.6 | |
Long working distance for LCD lens | LCPLFLN20xLCD | 0.45 | 8.3-7.4 |
LCPLFLN50xLCD | 0.7 | 3.0-2.2 | |
LCPLFLN100xLCD | 0.85 | 1.2-0.9 |
Application software
Standard software | OLS51-BSW | |||
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Standard software | Data acquisition app | Analysis app (simple analysis) | ||
Motorized stage package application*1 | OLS50-S-MSP | |||
Advanced analysis application*2 | OLS50-S-AA | |||
Film thickness measurement application | OLS50-S-FT | |||
Auto edge measurement application | OLS50-S-ED | |||
Particle analysis application | OLS50-S-PA | |||
Experimental total assist application | OLS51-S-ETA | |||
Sphere/cylinder surface angle analysis application | OLS50-S-SA |
*1 Including auto-stitching data acquisition and multi-area data acquisition functions.
*2 Including Profile analysis, Difference analysis, Step-height analysis, Surface analysis, Area/volume analysis, Line roughness analysis, Area roughness analysis and Histogram analysis.
Olympus Laser Microscopes

OLS5100-SAF Setup Example
OLS5100-SAF
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OLS5100-EAF
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OLS5100-SMF
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OLS5100-LAF
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