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LCD Cell Gap Measurement RETS series
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Cell gap measurement for LCD cell (Reflection type & Transmission type) and empty cell with color filter
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- Product
- Specification
- Measured Data
Product
Feature
- Polarization Optical System and Array Spectrometer
- Measures various size of samples (from 1mm optical element to 10th generation large LCD panels)
- Complying LCD production requirement for safety measure and dust prevention
Measure Item
- Filled cell gap
- Twist angle
- Rubbing angle
- Pretilt angle
- Empty cell gap
- Retardation dispersion
- Optical axis
- Ellipticity/ Azimuth angle
- Three-dimensional refractive index
- Spectrum / chromaticity
Measurement Item
- LCD Cell
- Transmission type （TFT, TN, STN, IPS, VA, OCB, ferroelectric）
- Reflection type （TFT, TN, IPS, VA） - Optical Material
- Other (retardation/ellipticity/polarization film, LC material)
Specification
Specification
| Model | RETS series | |||||||
| Sample size | 20mm×20mm ～ * | |||||||
| Measurement range (cell gap) |
0.1μm ～ several 10μm | |||||||
| Measurement reproducibility (cell gap) |
±0.005μm | |||||||
| Detector | Array spectrometer | |||||||
| Wavelength | 400nm ～ 800nm | |||||||
| Polarizer unit | Polarization optics Extinction ratio 10-5 (Glan-Thompson prism) Automatic rotation (Angle accuracy 0.1°) |
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| Spot size | φ2, φ5, φ10 (mm) | |||||||
| Tilt mechanism for optic axis | -20 ～ 45°, -45 ～ 45°ohter | |||||||
* Measures various size of samples(over 2000mm×2000mm)
Measured Data
Retardation dispersion at each wavelength and cell gap
Distribution data in the gap surface
- Product
- Specification
- Measured Data
Related Information
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Array Spectrometer MCPD-9800 |
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Goniophotometric Measurement System GP series |
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