Topcon SR-3AR
Spectroradiometer
NEW PRODUCT ALERT – As of February 2022, the Topcon SR-3AR has been replaced by the SR-5 Series. Please visit the SR-5 Series Product Page to learn more.
The SR-3AR Spectroradiometer is the first instrument in Topcon’s line of spectroradiometers. The SR-3AR provides increased color accuracy (±0.002 xy) and guaranteed accuracy luminance measurements down to 0.1 cd/m2
The four standard apertures (2° / 1° / 0.2° / 0.1°) are automatically selectable by the control panel or through the USB / RS-232 remote interfaces allowing you to optimize the measurement spot size (also a function of working distance) and the minimum measurable luminance level (larger apertures can measure lower levels).
Features
Measure low luminance with accuracy
Measures luminance and color as low as 0.1 cd/m2 with high accuracy
Luminance, spectral distribution, and CCT measurements
Supports Luminance, Spectral Distribution, CIE1931 and CIE1976 chromaticity coordinates, Tristimulus value XYZ, CCT and Deviation, CIE1976 L*a*b*, Eab*± , CIE1976L*u*v* Euv*±
Four apertures available
Four (4) apertures 0.1°/0.2°/1°/2° enable you to measure luminance from small to wide area without attachment lens
Applications
Luminance, Chromaticity, and Color Temperature measurement of LCDs, CRTs, OLEDs, LEDs, etc
Transmittance of LCD polarizing plates & filters
Luminance and color measurement of various light sources
Step it up
For increased luminance sensitivity, faster measurements, and equal color accuracy, consider the Topcon SR-UL1R, and SR-UL2 Spectroradiometers. These ultra-sensitive instruments provide greater sensitivity for measuring low luminance levels with full spectral analysis. The SR-UL1R and SR-UL2 offer guaranteed luminances of 0.001 and 0.0005 cd/m2 respectively.
Specifications
| Parameter | Aperture | |||
|---|---|---|---|---|
| 2° | 1° | 0.2° | 0.1° | |
| Optical System | Objective lens: f=82mm F2.5 Eyepiece lens: View field 5°, Diopter adjustment range ±5 diopter |
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| Measurement Distance | 350mm – Inf. | |||
| Luminance Range cd/m2 | 0.1 ~ 3,000 | 0.3 ~ 9,000 | 7.5 ~ 70,000 | 30 ~ 300,000 |
| Spectral Range | 380 ~ 780 nm range @ 1 nm resolution | |||
| Luminance Accuracy | ±2% (for standard illuminant A) | |||
| Color Accuracy | ±0.002 in 1931 CIE x,y Space | |||
| Spot Size at 1m | 32.2 mm | 16.1 mm | 3.2 mm | 1.6 mm |
| Min. Spot Size at 35cm | 10 mm | 5 mm | 1 mm | 0.5 mm |
| Dimensions | Approx 406mm (L) x 150mm (W) x 239mm (H) | |||
Ordering Information
The base unit model number is SR-3AR and includes:
- Instrument with standard lens
- AC adapter
- Lens cap
- Hard shell carrying case
- Manual
- USB Cable
- CD containing CS-900A software
See the SR-3AR Brochure for available options. Popular options include:
- AL-6 and AL-11 adapter lenses (for reducing the measurement spot)
- Tripod and fine adjustment stand (gimbal)
- Fiber optic probe
If you can’t find what you are looking for, contact us for info on Topcon options and accessories.