Transmittance Meter

The Transmittance Meter is a transmission spectrophotometric instrument designed to measure material transmittance and color characteristics under 0° illumination conditions. The system enables accurate evaluation of optical transmission and color properties, making it ideal for industrial inspection, optical material analysis, and process control applications.

The Type I Transmittance Meter integrates a halogen light source with a high-precision spectrometer. By comparing the optical signals before and after transmission through the sample, the system accurately calculates the material's transmittance. An integrated signal-processing algorithm enhances measurement stability, ensuring consistent and reliable optical characterization of samples.

<0.3 %

Repeatability Error
<2 s

Single-point measurement time
0.005

Chromaticity Accuracy

Advantages
Applications
Specifications
Application Solutions

Advantages

Custom Measurement Modes for Multiple Applications

Supports customizable measurement modes to adapt to different testing scenarios.
Simple Interface with Transmittance and CIE Data Output

The intuitive software interface outputs transmittance and CIE chromaticity data for professional analysis.
Fast Measurement with Plug-and-play Trigger

Measurement time <2 s, with external trigger interface for plug-and-play operation and system automation.
Adjustable Structure with Custom Fixture Design

An external module allows adjustment of the lens-to-sample distance for easier system setup. Custom fixtures support various sample types.
Low-maintenance Design with NIM Verification

Simple and reliable structure ensures low maintenance cost. Verified by the National Institute of Metrology (NIM) for measurement reliability.
Non-contact Measurement for Sample Protection

The non-contact measurement design prevents damage or contamination to the sample.

Applications

Flat optical material measurement
Cover Glass Measurement
Lens Testing

Specifications

Product Model

Transmittance Meter

Illumination Angle
Output Probe
Spot Size
Detector
Detection Range
Wavelength Repeatability
Stray Light
Repeatability Error
Sample Type
Measurement Time
Calibration Reference Standard
Standard Illuminants
Tristimulus Values (CIE 1931 X, Y, Z) Accuracy
Chromaticity (CIE 1931 x, y) Accuracy
LAB Color (CIE 1976 L*, a*, b*)
Spectral Data Output
Color Data Output
Operating Temperature
Humidity

Transmittance Meter
- Illumination Angle
  
  0° (normal incidence)
- Output Probe
  
  Collimator
- Spot Size
  
  ≥ 1.2 mm
- Detector
  
  Thin back-illuminated CCD
- Detection Range
  
  380 ~ 1100 nm (200 ~ 1100 nm optional)
- Wavelength Repeatability
  
  ± 0.2 nm
- Stray Light
  
  0.05 %
- Repeatability Error
  
  < 0.3 %
- Sample Type
  
  Glass samples, mirror-coated samples
- Measurement Time
  
  Single-point measurement time < 2 s
- Calibration Reference Standard
  
  Fully polished BK7 optical glass
- Standard Illuminants
  
  A, C, D65 standard illuminants optional
- Tristimulus Values (CIE 1931 X, Y, Z) Accuracy
  
  Better than ±0.10
- Chromaticity (CIE 1931 x, y) Accuracy
  
  Better than ±0.005
- LAB Color (CIE 1976 L*, a*, b*)
  
  L ± 2.0, a*, b* ± 0.8
- Spectral Data Output
  
  T% vs. wavelength
- Color Data Output
  
  Tristimulus 1931 X,Y,Z; Tristimulus 1964 X,Y,Z; CIE 1931 x,y; CIE 1976 L*, a*, b*; CIE 1976 L*, u*, v*
- Operating Temperature
  
  0 ~ 35 °C
- Humidity
  
  Relative humidity < 90% (non-condensing)

Application Solutions

Consumer Electronics

With deep expertise in lasers, JPT provides advanced optical calibration and inspection systems for electronics. Combining optical design, vision algorithms, and motion control, we deliver intelligent, high-precision solutions that empower the industry.

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Transmittance Meter

Advantages

Applications

Specifications

Application Solutions

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