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Best for steep angles
No Image Stitching
Fast for large areas
No Sample Prep
Very easy to use
No Refocusing


Chromatic Confocal technique uses white light that passes through a series of lenses with high degree of chromatic aberrations. Each wavelength will focus at a different distance creating the vertical measurement range. When a surface of interest is within the measurement range a single wavelength of the white light will be in focus while all others will be out of focus.
Only the focused wavelength will pass through the pin hole filter to reach the CCD spectrometer. The physical wavelength measured corresponds to a vertical position.
HOW WE ARE DIFFERENT FROM THE OTHERS
(Interferometry, Laser Microscope, Focus-Variation)
SCANNING A COIN
50x OBJECTIVE vs HIGH SPEED SENSOR (950 μm)
LASER SCANNING
CONFOCAL MICROSCOPE
V
Laser Light Health Hazard
Need for care of reflected light
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Change in wavelength of laser light
affects results on the same sample
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Non significant "display resolution"
Height & lateral accuracy fixed by objective used
Complex accuaracy calculations
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Alpha blending algorithms to combine
layer by layer data for complex accuaracy calculation
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Limited fixed field of view
Inaccurate stitching algorithms for larger surfaces
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Data Acquisition speed 7900 Hz
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CHROMATIC
OPTICAL PROFILER
S
SAFE WHITE LIGHT
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UNIFORM BROAD WHITE LIGHT SPECTRUM
No effect of light intensity on results
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INDEPENDENT LATERAL & HEIGHT ACCURACY
Any scan area at selected height accuracy
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NO ALGORITHMS
Physical Wavelength Measured = Accurate Height
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NO STITCHING
Continuous scannign of larger surfaces
Accuracy constant across any measurement size
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50x FASTER
High Speed Sensor 384000 Hz
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LATERAL RESOLUTION vs ACCURACY


THEM
Camera pixel size or display resolution size are often used as lateral resolution to impress
clients. For these, complex algorithms used to determine what is actually in focus, gives
a very different story of actual accuracy especially on complex surfaces.
US
Chromatic Confocal lateral accuracy is determined by physics and directly related
to the spot size of the light.




EXPERIENCE THE FUTURE OF PROFILOMETRY



ST500 Profilometer
Large Area



Jr25 Profilometer
Portable



PS50 Profilometer
Compact



ST400 Profilometer
Standard



AFMPRO Profilometer
Atomic Force



JR100 Profilometer
Portable



HS2000 Profilometer
Zero Noise/Flatness



In-line Profilometer
Roughness QC



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