2D Luminance Colorimeter : UA-200A

Wide dynamic range from low to high luminance.
Latest model of UA series that is high accurate 2D Luminance Colorimeter.

2D Luminance Colorimeter

  • Outline
  • Features
  • Specification


2D Luminance Colorimeter UA-200A is a latest model of UA series that can measure high accuracy
the uniformity of luminance and chromaticity for FPDs, lighting, and interior panels of automobile.
 The UA-200A has achieved wide measurement range than one of conventional product.
(From 0.0005 cd/m2 to 1,000,000 cd/m2)
Also, it has a new function that is layer function and can measure from low luminance to high luminance in a lump by added layer function.

Lens angle Model name
Standard lens UA-200AS
Standard lens with
wide attachment lens
Telephoto lens UA-200AT



• High chromaticity accuracy : New developed optical filter make it possible to achieve high accuracy of within ±0.008.
• Measuring time : one sec : Optimized algorithm allows reducing measuring time. *Luminance measuring only.
• 1.4 mega pixel CCD : 1,376×1024 resolution
• Expansion of function : Available for high brightness version 10-50,000cd/m2
• 3 type lens variation : Standard, Wide, Telescopic lens


° Evaluation of luminance and chromaticity of LCD, its related materials, and OLED.
° Evaluation of light distribution of Interior panel in automobile and Car Audio.
° Evaluation of luminance and color Mura on the LED and OLED illumination.

Standard software

○The standard software can operate an instrument and collect and analyze data.
○Two type software are available for your usage.
・Standard Edition : Full function are available, including control of UA-200A
・View Edition : Viewing and analyzing are available. Can analyze measured data without an instrument.
○New functions
①Variety view function
・Focusing assist
・Multipoint extraction (Max 999 points)
②Arbitrary shape of measuring area
・Select measuring area from polygon, square, and circle.
③Multi-area correction
・Splitting into 64×64 (Max) area and applying correction factor to each area.
④Extraction and measuring of multi bright section
・Multiple bright sections are detected automatically by preset threshold.
⑤Diagonal Correction
・Correcting tilting image
・Diagonal correction is available for continuous measurement by single recipe

○View mode (Current model)
Pseudo Color View   Contour View   Split Spot
擬似カラーs.jpg   等高線ビューs.jpg   分割スポットs.jpg
The difference in luminance or color on the image is presented by using colored image.
Suited for Mura evaluation
  Indicates the luminance and color difference by using contour line.   Image is dividend with grid pattern and show value of luminance and chromaticity in each gird.

Standard Spot View   Random Spot View   Cross Section View
規格スポットs.jpg   任意スポットs.jpg   断面図ビューs.jpg
Four type of measurement according to JEITA standard (EIAJ ED-2522/ED-2710). shape and quantity of spots are changeable.   999 points at max can be placed on the image.   Measured data on the cross-section line is shown as graph. The cross-section line can be selected from cross line and diagonal line.

Color diagram View(x,y/u',v')   3D View   Histogram View
色度図ビューs.jpg   3Dビューs.jpg   ヒストグラムs.jpg
Measured data on each view can be plotted on the color diagram   Measured data show as 3D image.   Statistical graph.
Vertical axis means the frequency, horizontal axis means measured data.

Thumbnail View   Time-series graph view    
サムネイルビューs.jpg   時系列ビューs.jpg    
Measured images show as thumbnails.   Variation of measured data with lapse of time shows    

Measured data on each view can be saved as csv format.
Image on each View can be saved as BMP/JPG/PNG file.



Model type
Photo detector
1.4 million-pixel CCD
Objective lens
Standard lens:f=8.0mm 、 Wide lens:f=5mm
Telescopic lens : f=35mm
Effective pixels
Data bit
Luminance measurement
linearity *1,*2
±2%  (1cd/m2 over)
±3% (0.005~1cd/m2)
accuracy 1 *1,*2
±0.003  (1cd/m2 over)
±0.005  (0.005~1cd/m2)
accuracy 2 *2
uniformity *1,*3
Luminance:0.3% (1cd/m2 over)*5、0.5% (0.005~1cd/m2)*5
Luminance:0.001  (1cd/m2 over)*4
Chromaticity:0.002  (0.005~1cd/m2 )*4
Measurement time
Luminance:Fastest about 1 sec  100cd/m2
(include communication time)
Luminance & Chromaticity : Fastest about 3 sec 100cd/m2
(include communication time)
 Stability *1,*2
Repeatability *1,*2
Luminance:±3% (Tempreature : 0~40℃)
Humidity characteristic
Luminance:±3% (Humidity: 85%R.H. and below、No condensation)
LAN (Gigabit Ethernet)
Power supply AC 100V~240V (50/60Hz) / Dedicated AC adapter
Use conditions Tempreature:0℃~40℃
Humidity:85%R.H. and below、No condensation
Outer dimensions (W×D×H)
3.9kg (UA-200AS)
4.12kg (UA-200AWS)
4.45kg (UA-200AT)

*1 : Standard sources A
*2 :Center of the CCD
*3 :evaluated on the center of the CCD
*4 :Max - Min
*5 from 10 times continuous measurement
*6 : with combination of standard illuminant and color glass filter
*7 : Our specification LED panel of RGBW


Measurement field

UA-200AS:Standard lens
Measurement distance
300 500 1000 1500 2000 2500
inch 9.6 15.3 29.6 43.8 58.0 72.4
Horizontal(mm) 195.1 311.1 603.1 893.1 1181.7 1474.3
Vertical(mm) 145.2 231.5 448.8 664.6 879.4 1097.1

UA-200AWS:Standard lens with wide attachment lens

300 500 1000 1500 2000 2500
inch 15.5 24.6 47.4 70.0 92.8 115.7
Horizontal(mm) 315.9 501.4 966.1 1426.3 1890.9 2357.4
Vertical(mm) 235.1 373.1 719.0 1061.4 1407.2 1754.3

UA-200AT:Telephoto lens

400 500 1000 1500 2000 2500
inch 5.1 5.7 8.9 12.0 15.3 18.6
Horizontal(mm) 103.0 116.3 180.8 245.2 311.6 378.0
Vertical(mm) 76.6 86.6 134.6 182.5 231.9 281.3

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

Operating condition

Windows 7 Ultimate(32bit/64bit)
Windows 7 Professional(32/64bit)
Windows 8 Pro(32/64bit)
Windows 10 Pro(32/64bit)
Intel Core i5 (4 Core 2.8GHz) or more
4GB or more
HDD 1GB or more
Gigabit Ethernet :1 port
*when conducting color correction, the UA-200 require RS-232C serial or USB 1.1
Display 1024×768 or more
1677 million color (32bit) or more
CD-ROM drive

Product configuration

  • UA-200A main body
  • AC adapter
  • LAN cable
  • Apprication CD-ROM (Apprication software/Instructions manual/SDK file)
  • Lens cap
  • Carrying case 

Available Accessories

  • Wide attachment lens :AL-UA3(for UA-200AS)
  • Wide attachment lens :AL-UL4 (for UA-200AT)
  • ND filte for telephoto type(10x / 100x)
  • Tripod :Tripod 5N
  • Fine control table   :S-4