High-speed luminance colorimeter for LCD and LED evaluation. Measures response time, flicker, chromaticity, and luminance with 80µs speed.
U.S.-based sales, and delivery available. The RD-80SA Luminance Colorimeteris a high-speed, high-accuracy response-time and flicker measurement system designed for advanced LCD, LED backlight, and display evaluation. Featuring ultra-fast ≤80 µs analog response, the RD-80SA captures subtle temporal luminance variations, enabling precise Gray-to-Gray response-time analysis, overshoot/undershoot detection, and PWM flicker evaluation. With a measurable range of 0.1 to 10,000 cd/m² and micro flicker detection down to 0.04 cd/m², this instrument ensures accurate luminance, chromaticity, and color temperature measurement in R&D and production environments. Equipped with RS-232C, LAN connectivity, and analog BNC output, the RD-80SA integrates seamlessly into automated inspection systems, making it ideal for display manufacturers, lighting developers, and optical research applications.￭ High Sensitivity and Fast Response (≤ 80 µs) Captures rapid temporal variations in light output with high resolution. Accurately evaluates effects of PWM driving and backlight control. Supports both physical response measurement and perception-based response evaluation. ￭ Micro Flicker Detection Capability Detects minute flicker components as small as 0.04 cd/m². Complies with JIS and PSE standards for LED lighting flicker evaluation. ￭ Simultaneous Luminance and Chromaticity Measurement Measures luminance and chromaticity concurrently, functioning as a color luminance meter. Provides rapid luminance measurements in approximately one second. ￭ Stable, High-Fidelity Measurement Offers outstanding reproducibility and stability, even for low-level or fluctuating light sources. ￭ Comprehensive Connectivity Equipped with RS-232C and LAN interfaces for seamless integration with automated systems. Analog BNC output enables direct waveform observation via oscilloscope or multimeter. ￭ Precise Spot-Based Measurement Allows accurate targeting of specific areas on displays — ideal for TVs, monitors, and gaming screens.
￭ LCD Response-Time and Flicker Evaluation Quantifies brightness variations due to drive waveforms or backlight modulation to assess motion performance and image quality. ￭ LED Lighting and Backlight Flicker Analysis Evaluates luminance fluctuations caused by PWM control, improving visibility and user comfort. ￭ Panel and Module Optical Output Verification Ensures uniformity and stability in production and inspection processes. ￭ Optical Measurement and Response Analysis in Research and Education Enables detailed investigation of temporal light characteristics and emission behavior. ￭ Integration into Display Evaluation Systems Combines flicker, response, and luminance measurement functions as a core sensor within automated inspection and test platforms.
| Photo Detector | Photomultiplier tube |
| Optics | Objective Lens:f=80mm, F2.5 / Eyepiece lens:5°view field |
| Measurement angle | 2° |
| Measurement distance | 350mm – ∞ (Distance from metallic tip of objective lens) |
| Measurable range(*1) | 0.1 – 10,000 cd/m² |
| Accuracy in luminance(*2) | Within ±3% (2cd/m² or less) Within ±2% (>2cd/m²) |
| Measurable range | 8 Range (Auto range or Manual range) |
| Accuracy in chromaticity(*2) | (1) ±0.0040 (2cd/m² or less), ±0.0025 (>2cd/m² ) (2) ±0.01 (O-55,Y-48,A-73B,IRA-05,T-44 ) (*3) ±0.03 (R-61,B-46,V-44,G-54 )(*3) |
| Repeatability in luminance(*4) | 2% (2cd/m² or less), 1% (>2cd/m² ) |
| Repeatability in chromaticity(*4) | 0.003 (0.5 cd/m²≦ luminance ≦2cd/m² ) 0.002 (2cd/m² or more) |
| Analogue output voltage(*5) | Approx. 0 – +3.4V |
| Measurement time(*6) | Approx. 1.0 sec |
| Analogue output response time(*7) | 80μs or less |
| Display | Dot-matrix 20caracters x 4rows with backlight |
| Interface | RS-232C, LAN |
| Calibration standard(*1) | TechnoOptis Calibration standard (23℃±3℃, 65%R.H. or less) |
| Power supply | Dedicated AC adapter AC100V-240V, 50/60Hz |
| Power consumption | Approx. 34W |
| Use conditions | Temperature: 0 – +35℃, Humidity: 65%RH or less (No condensation) |
| Outer dimensions (W×D×H) | 130×319×201mm |
| Weight | 4.3kg |
Measurement Area
| Measurement distance [mm] | 350 | 500 | 1000 | 5000 | 10000 |
| Measurement distance [mmφ] | 10 | 15.4 | 32.8 | 169 | 341 |
Measurement Range
| Range | 1 | 2 | 3 | 4 |
| Luminance (cd/m²) | 0.1-5 | 0.5-15 | 1.5-40 | 3.5-120 |
| Range | 5 | 6 | 7 | 8 |
| Luminance (cd/m²) | 15-600 | 35-1,600 | 220-2,900 | 750-10,000 |
