PRODUCTS

[Discontinued]Spectroradiometer : SR-LED

Capable of direct visual measurement
for high brightness LED

[Discontinued]Spectroradiometer

  • Outline
  • Features
  • Specification

Outline

This product achieves high cost performance and is specialized in dynamic range up to 4,500,000cd/m².
It provide not only luminance and chromaticity data but also color rendering index and color temperature date with high speed and high accuracy.
This product is suited for use in design and development department, and quality control of products for LED chip and LED module.

Features

Features

  • Measuring wide-dynamic range. (1 - 4,500,000 cd/m²)
  • High cost performance. 
  • Capability of illuminance measurement by using the adapter (option)

 

Applications

  • Luminance, Chromaticity, Color rendering index and Color temperature for LED Back light, LED illuminator.
  • Luminance and Chromaticity of TV, PC, Tablet, Smart phone display.
  • Luminance and Chromaticity of head light and interior panel of automobile.

 

Specification

Specifications

Photo detector Electronically cooled linear CCD
Dispersing element Diffraction grating
Optical system Object lens : f= 82mm F2.5, Collimation lens : Range of view= 5°
Measurement angle 2°/1°/0.2°/0.1° *motor drive
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°: 1 - 1,500,000      1.0°: 3 - 4,500,000

 

0.2°: 75 - 500,000     0.1°: 300 - 2,000,000

Accuracy in luminance(*1) ±2% or less
Accuracy in chromaticity (*1) ±0.002
Repeatability in luminance(*3) 0.3%
Repeatability in chromaticity(*4) 0.0005
Polarization error Luminance : 1% or less,  Spectral radiance : 2% or less (400 - 780nm)
Measurement time(*5) NORMAL Mode: about 1 - 31sec, HIGH SPEED Mode: about 1 - 17sec
Interface RS-232C, USB 2.0
Power supply Dedicated AC adapter AC100V-240V, 50/60Hz
Power consumption about 34W
Use conditions Temperature: 5 - 35℃,  Humidity: 80%RH or less (no condensation)
Outer dimensions (W×D×H) 150×406×239mm
Weight 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 (Diameter φ)

mmφ
Measurement
angle
Measurement distance(*1)
350mm 500mm 800mm 1000mm 2000mm
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


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

Available Accessories

  • Attachment Lens
: AL-6
  • Attachment Lens 
: AL-11
  • Attachment Lens
: AL-12
  • Reference White Board
: WS-3
  • 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