Specification

Optical system	Objective lens : f=80mm F2.5 Eyepiece lens : View field 5°,Diopter adjustment range ±5 diopter
Spectral sensitivity	Similar to CIE1931 color matching function
Photodetector	Silicon photo diode (3 elements X₂,Y,Z)
Measurement angle	2°/ 1°/ 0.2°/ 0.1° (selectable)
Measurement distance	350mm to ∞ (distance from metallic tip of objective lens)
Minimum measurement area	Measurement angle 2°φ10mm Measurement angle 1°φ5mm Measurement angle 0.2°φ1mm Measurement angle 0.1° φ0.5mm
Function	Luminance, CIE1931 chromaticity coordinates xy CIE1976 chromaticity coordinates u' v', Tristimulus value XYZ, Correlated color temperature and Deviation, CIE1976 L*a*b*, Eab*±, CIE1976L*u*v* Euv*±
Luminance range for guaranteed accuracy	Measurement angle 2° 1 - 30,000cd/ m² Measurement angle 1° 4 – 120,000cd/ m² Measurement angle 0.2° 100- 3,000,000cd/ m² Measurement angle 0.1° 400 – 12,000,000cd/ m²
Accuracy	Luminance 1: ±4% (1-5cd/m²) Luminance 2: ±2% (5cd/m² or more) For standard illuminant A, auto range, Measurement angle 2° Chromaticity(xy) 1:±0.002 (10cd/m² or more) For standard illuminant A, auto range, Measurement angle 2° Chromaticity(xy) 2:±0.01 (O-55,Y-48, T-44, A-73B, IRA-05) ±0.03 (R-61, B-46, V-44, G-54) (with combination of standard illuminant and color glass filter)
Repeatability	Luminance 1 : 1% or less (1 - 5 cd/m²) Luminance 2 : 0.5% or less (5cd/m² or more) Chromaticity 1 : xy : 0.005 (1 - 5 cd/m²) Chromaticity 2 : xy : 0.002 (5cd/m² or more) For standard illuminant A, auto range, Measurement angle 2°, Slow mode
Measurement range	Auto/Manual 5 steps
Measurement time	Fast/Slow 0.5 second
Display	Dot matrix 20 characters x 4 lines with back light
Minimum luminance display	0.01cd/m²
Interface	USB 1.1/RS-232C selectable
Power supply	Dedicated AC adapter AC100V-240V, 50/60Hz
Power consumption	Approx 2.5W
Operating condition	Temperature 0℃-40℃, Humidity:85% RH or less (no condensation)
Storage condition	Temperature -20℃-60℃, Humidity:85% RH or less (no condensation)
External dimensions	Approx 325mm x120mm x 162mm (LxWxD)
Weight	Approx 3Kg (main unit only)

Measurement area (Diameter φ)

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Measurement distance (mm)
	350	500	1000	5000	10000
2°	10	15.4	32.8	169	341
1°	5	7.7	16.4	85	170
0.2°	1	1.5	3.3	17	34
0.1°	0.5	0.8	1.6	8	17

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

Luminance Display Range

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	Range 1	Range 2	Range 3	Range 4	Range 5
2°	0.01-30	0.03-90	0.1-300	1-3,000	10-30,000
1°	0.04-120	0.12-360	0.4-1,200	4-12,000	40-120,000
0.2°	1-3,000	3-9,000	10-30,000	100-300,000	1,000 -3,000,000
0.1°	4-12,000	12-36,000	40-120,000	400-1,200,000	4,000 -12,000,000