TechnoOptis RD-80SA Luminance Colorimeter

High-speed luminance colorimeter for LCD and LED evaluation. Measures response time, flicker, chromaticity, and luminance with 80µs speed.

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.

Luminance Colorimeter

Model:

RD-80SA

Maker:

TechnoOptis

Download Materials

Catalog DL

Features

￭ 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.

Principal use

￭ 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.

Specifications

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

(*1) For standard illuminance A.
(*2) For standard illuminance A., Auto-Range.
(*3) For a combination of the standard source A and the colored glass.
(*4) Standard illuminant A, Auto range, SINGLE mode, 2σ.
(*5) It takes a oscilloscope to measure the response time and the cross-talk.
(*6) SINGLE mode,Y-filter, Range-4, Auto calibration OFF.
(*7) The response speed is the time required for the analog output of the instrument to reach 90% of the peak value when measuring an LED driven by a square wave from a function generator.

[Note]
This product is adjusted to provide 1,000mV at measurement range 5 for 200 cd/m² of standard illuminant A.
The upper limit of each measurement range is 3.4V.

Measurement Area

Measurement distance [mm]	350	500	1000	5000	10000
Measurement distance [mmφ]	10	15.4	32.8	169	341

(*) The measurement distance is the distance from the tip of the metal fixture on the instrument of the objective lens.

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

(*) Above figure is design reference value, measurement range may change slightly according to the machining precision of the ND filter.

Adjustment function on body

1. Range adjustment → Adjustment over and under range voltage level.
￭ Upper range： Approx. 2.0 – 3.4V * Default 3.3V.
￭ Under range： Approx. 0.0 – 1.2V * Default 0.03V.
2. PMT sensitivity adjustment → Adjustable sensitivity of PMT.
￭ Adjustable range： Approx. 0.0 – 1.0V * Recommend： Approx. 0.3 – 0.5V.
Default setting　： 200cd/m² (for standard illuminant A )　Analog output 1.00V ± 0.05V.
3. Analog offset adjustment → Adjustable analog output offset.
￭ Adjustable： ±1.0V *Default： 0.05V (Dark).

Inquiry