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Spectroradiometer SR-UL2

It can be measured the range of lower luminance than SR-UL1R.

Outline

This product moves up sensitivity and measuring speed compared with current model SR-UL1R.
This SR-UL2 is the measuring instrument suitable for measuring Mega-contrast FPD, whose measuring range from 0.0005 to 300,000 cd/m² and lowest measurable luminance up to 0.0005cd/m².
The measuring time is about 17sec at 0.005cd/m², which is the fastest level in the measuring instrument field.
This product can be used for not only design and development department but also quality control in the production line.

Features

■ Ultra-low luminance measurement.(0.0005 cd/m² or more)
■ High sensitivity and wide dynamic range.(0.0005 – 300,000cd/m²)
■ Luminance and chromaticity in small area can be measured without attachment lens.
■ The stable measured value are obtained even when measuring frequency light source.
■ Communication between the SR-UL2 and PC is accelerated with USB and STB command.
■ Application soft CS-900A is standard accessories.

Principal use

■ A various of flat panel display, FPD related materials.
■ Outdoor billboard, Digital signage.
■ Automobile instrument panel, audio, lamp and operating panel.
■ Traffic sign, Traffic light.
■ Generic illumination, Special illumination.

Specifications

Photo detector Electronically cooled linear CCD
Dispersing element Diffraction grating
Optical system Object lens : f= 82mm F2.5, Eyepiece lens : 5° view field
Measurement angle 2°/1°/0.2°/0.1° Selectable (Electric motor drive)
Minimum measurement area  2°: 10.0 mmφ
 1°: 4.99 mmφ
0.2°: 1.0 mmφ
0.1°: 0.5 mmφ
Measurement distance 350mm – ∞ (Distance from metallic tip of objective lens)
Spectral bandwidth 5 – 8nm *Half bandwidth
Wavelength 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
Calculation 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°
Range of guaranteed illuminance accuracy(*1) (*2)  2°:0.0005 – 3,000 cd/m2
 1°:0.0015 – 9,000 cd/m2
0.2°:0.0375 – 70,000 cd/m2
0.1°:  0.15 – 300,000 cd/m2
Accuracy in luminance(*1) ±2% or less
Accuracy in chromaticity (*1) ±0.002
Repeatability in 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
Repeatability in 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 error Luminance 1% or less
Spectral radiance 2% ore less (400 – 780nm)
0easurement 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, DC12V
Power consumption Approx. 36W
Use conditions Temperature: 5 – 30℃, Humidity: 80%RH or less
(No condensation)
Outer 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

Measurement area: mmφ
Measurement
angle
Measurement distance [mm] *
350 500 800 1000 2000
10.0 15.1 25.4 32.2 66.4
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 : Tripod 5N
■ Tripod : Tripod-SR
■ Fine Control Table : S-4
■ Neutral Density Filter : ND-10/100
■ Illuminance Adapter : ZV-30

75-1, Hasunuma-cho, Itabashi-ku, Tokyo, 174-8580, Japan
TEL: +81-3-3558-2642, FAX: +81-3-5392-4992
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