This product is a new top-end model in Topcon Spectroradiometer, which has capability of measuring wide dynamic range from ultra-low luminance of 0.0005cd/m² to ultra-high of 5,000,000cd/m².
Addition to the new FIX mode, the SR-LEDW calculates optimum measuring setting automatically and reduces the measuring time in continuous measurement of the same object.
This product can be used with high speed and high accuracy not only in the Design/Development department but also in quality control in production line of LED module.
FEATURES
- High sensitivity and wide dynamic range. (0.0005 – 5,000,000cd/m²)
- FIX mode allows to shorten measurement time in continuous measurement mode.
(Conventional ratio 1/2) - LED chip can be measured with ease by improving uniformity of the sensitivity.
- Capability of illuminance measurement by using the adapter. (Option)
PRINCIPAL USE
- Luminance, Chromaticity, Color rendering index and Color temperature for LED Back light, LED lighting.
- Luminance and Chromaticity of TV, PC, Tablet, Smart phone display.
- Luminance and Chromaticity of head light and interior panel of automobile.
- Used as optical characteristic evaluation sensor for system equipment.
SPECIFICATIONS
| Photo detector | Electronically cooled linear CCD |
|---|---|
| Dispersion element | Diffraction grating |
| Optical system | Object lens : f= 82mm F2.5, Eyepiece lens : 5° view field |
| Measuring angle | 2°/1°/0.2°/0.1° Selectable (Electric motor moved) |
| Measuring distance | 350mm – ∞ (Distance from metallic tip of objective lens) |
| Spectral bandwidth | 5 – 8nm *Half bandwidth |
| Spectral accuracy | ±0.3nm *Hg emission lamp |
| Wavelength range | 380 – 780nm |
| Wavelength resolution | 1nm |
| Measurement mode | Auto/Manual(Integral time/Frequency) External vertical sync signal input |
| Measurement object | Spectral radiance : W･sr-1･m-2･nm-1 |
| Measuring function | Radiance Le : W･sr-1･m-2, Luminance Lv : cd･m-2, CIE1931 chromaticity coordinates xy, CIE1976 chromaticity coordinates u’ v’, Tristimulus value XYZ, Correlated color temperature and Deviation, CIE standard observer 2°/ 10° |
| Measuring luminance range
(*1)(*2) |
2°：0.0005 – 1,500,000 cd/m2 1°：0.0015 – 4,500,000 cd/m2 0.2°：0.0375 – 5,000,000 cd/m2 0.1°： 0.15 – 2,000,000 cd/m2 |
| Accuracy : luminance(*1) | ±2% or less |
| Accuracy : chromaticity(*1) | ±0.002 |
| Repeat accuracy : luminance(*3) | 1.5% : 0.0005 – 0.005 cd/m² 0.4% : 0.005 – 0.1 cd/m² 0.3% : 0.1 cd/m² or more |
| Repeat accuracy : chromaticity(*4) | 0.005 : 0.0005 – 0.005 cd/m² 0.0015 : 0.005 – 0.1 cd/m² 0.0005 : 0.1 cd/m² or more |
| Polarization characteristics | Luminance 1％ or less Spectral radiance 2％ or less (400 – 780nm) |
| Measurement time(*5) | NORMAL Mode : Approx. 1 – 248sec HIGH SPEED Mode: Approx. 1 – 17sec |
| Interface | USB2.0 / RS-232C selectable |
| Power supply | Dedicated AC adapter AC100V-240V, 50/60Hz, DC12V36W |
| Power consumption | Approx. 36W |
| Operating conditions | Temperature: 5 – 30℃, Humidity: 80%RH or less (No condensation) |
| External dimensions (W×D×H) | 150×406×239mm |
| Weight | Approx. 5.5kg |
*1 For standard illuminance A.
*2 Measurable range in Normal and High speed mode.
*3 2σ from 10 times continuous measurement at measuring angle 2° in normal speed mode.
*4 (Max – Min) value from 10 times continuous measurement at measuring angle 2°in normal mode.
*5 Except communication time with PC.
MEASUREMENT AREA
| Measuring angle | Measuring distance [mm] * | ||||
|---|---|---|---|---|---|
| 350 | 500 | 800 | 1000 | 2000 | |
| 2° | 10.0 | 15.1 | 25.4 | 32.2 | 66.4 |
| 1° | 4.99 | 7.55 | 12.7 | 16.1 | 33.2 |
| 0.2° | 1.00 | 1.51 | 2.54 | 3.22 | 6.64 |
| 0.1° | 0.50 | 0.76 | 1.27 | 1.61 | 3.32 |
* The measurement distance is the distance from the tip of the metal fixture on the instrument of the objective lens.
ACCESSORIES
- Attachment Lens : AL-6
- Attachment Lens : AL-11
- Attachment Lens : AL-12
- Reference White Board : WS-3
- CCD Adapter : IA-2
- Fiber probe : FP-3P
- Tripod 5N : Tripod5N
- Tripod : Tripod-SR
- Fine Control Table : S-4
- Neutral Density Filter : ND-10/100
- Illuminance Adapter : ZV-30