PRODUCTS

[Discontinued]Luminance Colorimeter : BM-5AS

Measurable weak optical signal from
ultra micro spot, high-speed, high-sensitivity

[Discontinued]Luminance Colorimeter

  • Outline
  • Features
  • Specification

Outline

Recently, luminance and chromaticity management of FDD, optical device has been increased. Especially, the needs for more measured weak optical signal and faster instrument are growing.
BM-5AS is released to meet its customer’s requirement with improvements our BM-5.
And also this product moves up sensitivity and measuring speed compared with current model BM-5

Features

Features

  • 5 steps selectable measurement angle. It can measure the object from particle area to wide area without attachment lens.
  • Built-in analog output, it can be data collect a data with a oscilloscope
  • High speed response speed 0.05ms (max).  Building up and falling down time of the flicker light can be measured using Oscilloscope.

 

Applications

  • Measurement luminance and chromaticity
    - TV, PC, Tablet, Smart phone display.
    - Ultra micro spot for automobile interior panel.
    - Fluorescent material, phosphorescence material, special light source

Specification

Specifications

Photo detector Photomultiplier tube
Optical system Objective lens : f=80mm F2.5, Eyepiece lens : View field 5°
Spectral sensitivity Similar to CIE1931 color matching function
Measurement angle 3°/2°/1°/0.2°/0.1° *selectable
Measurement distance 350mm - ∞ (distance from metallic tip of objective lens)
Measurement range Auto/Manual 5-range
Measurement range(*1) x,y,L (x,y: chromatic coordinate,L:luminance) and ±⊿
u',v',L (u',v': chromatic coordinate,L:luminance) and ±⊿
X,Y,Z (X,Y,Z: Tristimulus value) and ±⊿
Tc,duv,L (Tc: Correlated color temperature and Deviation) and±⊿
CIE1976 L*a*b*, ⊿Eab* and±⊿, CIE1976 L*u*v*, ⊿Euv*and±⊿
Range of illuminance(*2) 0.00005 - 1,200,000 cd/m²
Accuracy in luminance(*3) ±4% or less
Accuracy in chromaticity (1) dx,dy : ±0.005 or less(*3)
(2) dx,dy : ±0.01 or less (O-55,Y-48,A-73B,IRA-05,T-44) (*4)
dx,dy : ±0.03 or less (R-61,B-46,V-44,G-54) (*4)
Repeatability in luminance(*5) 2.0% : 0.005-0.025cd/m²     0.8% : 0.025 cd/m² or more
Repeatability in chromaticity(*6) 0.003
Measurement time(*7) About 2sec
Response speed NORMAL (All Range) : about 30ms
FAST Range-1: about 5ms     Range-2: about 0.5ms
Range-3: about 0.05ms     Range-4: about 0.5ms
Range-5: about 0.05ms
Analog output DC 0 - 4V (X2・Y・Z)
Display Dot-matrix 20caracters x 4rows with backlight
Interface RS-232C, USB
Power supply Dedicated AC adapter AC100V-240V, 50/60Hz
Power consumption about 20W
Use conditions Temperature : 0-40℃,     Humidity : 85% RH or less (no condensation)
Outer dimensions (W×D×H) 154×355×212mm
Weight 3.6kg


(*1) : ±⊿ : difference of standard value
(*2) : For standard illuminance A
(*3) : For standard illuminance A, Auto Rage
(*4) : with combination of standard illuminant and color glass filter
(*5) : For standard illuminance A, measuring angle 3°, 2σ, Single mode, Auto Range
(*6) : For standard illuminance A, 2σ, Single mode, Auto Range
(*7) : Single measurement mode
 

Measurement area (Diameter φ)

mmφ
Measurement
angle
Measurement distance (m) (*1)
350mm 500mm 1000mm 5000mm 10000mm
15.0 23.1 49.2 255 510
10.0 15.4 32.8 169 341
5.0 7.7 16.4 85 170
0.2° 1.0 1.5 3.3 17 34
0.1° 0.5 0.8 1.6 8 17


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

Luminance Display Range

cd/ m²
Measurement
angle
Range-1 Range-2 Range-3 Range-4 Range-5
0.00005-0.15 0.0005-1.5 0.005-15 0.05-150 0.5-1,500
0.0001-0.3 0.001-3 0.01-30 0.1-300 1-3,000
0.0004-1.2 0.004-12 0.04-120 0.4-1,200 4-12,000
0.2° 0.01-30 0.1-300 0.4-1,200 10-30,000 100-300,000
0.1° 0.04-120 0.4-1,200 4-120,00 100-300,000 400-1,200,000

 

Available Accessories

  • Attachment Lens
: AL-6 / AL-11 / AL13
  • Reference White Board
: WS-3
  • CCD Adapter
: IA-2
  • Fiber probe
: FP-3P
  • Tripod 5N
: Tripod5N
  • Tripod
: Tripod-SR
  • Fine Control Table
: S-4
  • Neutral Density Filter
: ND-10/100
  • Mesh Filter
: MF-10/MF-100