High speed retardation measurement system
RE-200
for low retardation measurement"
- Optical film
- retardation film
- ellipsoidal film
- retardation plate
- polarizing film
- function added polarizing film
- Retardation（ρ[deg.], Re[nm]）
- Principal axis azimuth（θ[deg.]）
- Ellipticity（ε）/Azimuth（γ）
- 3D refractive index（NxNyNz）
- Low (residual) retardation measurement from 0 nm
- High-speed retardation (Re.) measurement and optical axis simultaneous detection
- （Processing in less than 0.1 seconds, the fastest in the world）
- High repeatability due to no drive
- Easy to measure with few parameters to set
- Various wavelengths other than 550 nm are available
- Rth measurement and omni azimuthal measurement are available
- （Requires optional auto-rotating tilt unit)
- Combined with a tensile tester, it is possible to evaluate the photoelasticity simultaneously with the polarization characteristics of the film
- (This system is custom made.）
Spectroscopic Characterization Instrument About the High speed retardation measurement system RE-200
High quality control of Optical axis! 3σ≦0.02° for low retardation measurement
Measurement Items
Retardation
（ρ[deg.], Re[nm]）
Principal axis azimuth
（θ[deg.]）
Ellipticity（ε）/Azimuth（γ）
3D refractive index
（NxNyNz)
Measurement Targets
Principle
What is RE-200?
RE-200 is available to measure phase difference (retardation) and principal axis azimuthwith high speed and high accuracy due to combine a polarization measurement module composed of a photonic crystal element (polarization element) and a CCD camera with transmissive polarization optics. Since the polarization intensity pattern is acquired with one shot of the CCD camera, there is no mechanism for rotating the polarizer, and the whole system has a compact configuration, so stable performance can be maintained even for a long time continuous measurement.
Ellipticity（ε）and Azimuth（γ） are calculated by Fitting and Fourier transform algorithm.
Specifications
Options
Rth measurement and omni azimuthal measurement are available
※ Auto-rotating tilt unit（Rotation：180°, Tilt：±50°）
Auto-rotating tilt unit
Measurement Examples
Viewing angle improvement
film A
Viewing angle improvement
film B
Contact
Please feel free to contact us with any inquiries or requests.
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