It is used as a standard machine for FPD and light source chromaticity of best-selling products.
This product has high chromaticity accuracy and can fill light at high speed. It is suitable for various purposes such as light source chromaticity fill light field and light source output adjustment.
In addition, color correction can be performed directly with the reference instrument spectrophotometer series and similar models, providing stable measurement quality over the long term.
The main applications of the BM-7AC are optical performance evaluation of flat panel displays, brightness, lamp chromaticity, color temperature measurement and other light sources.
High-speed measurement can be used for batch inspection on production lines. It is a very efficient equipment.
The main purpose:
FPD, optical film, LED backlight panel, light source lighting, flat panel display
Feature 1-
Brightness accuracy:The brightness accuracy can be within ±2% (when automatic, the measurement angle is 2°5cd/m2 or more, under A light source)
Feature 2-
Achieve high-speed measurement:The high-speed measurement speed of 0.5 seconds enables the mass production level of online measurement to be fully utilized.
Feature 3-
built-in interface,Equipped with USB connection interface
Feature 4-
Analog output (optional):The 3Channel analog output corresponding to X2, Y, Z can be connected to an external recorder or oscilloscope for waveform observation and recording.
Feature 5-
Dual interface options: USB and RS-232C.
Feature 6-
Analog Outputs: Optional three-channel analog outputs to X, Y and Z channels for recording and waveform observation with a recorder or oscilloscope.
| Photocell |
3-segment silicon photodiode sensing-element Silicon photodiode |
| Optical system |
For objective lens: focal length = 80mm F2.5, eyepiece lens: observation field of view 5° |
| Spectral sensitivity characteristics |
Match CIE1931 metachromatic function |
| Measuring angle |
2° /1° /0.2° /0.1° *Switchable |
| Determine distance |
350mm～∞ (distance from the front end of the objective lens metal part) |
| Measuring range |
Automatic/manual 5-segment switching |
| Measuring function(*1) |
x,y,L (x,y: chromaticity coordinates, L: brightness) and ±⊿
u', v', L (u', v': chromaticity coordinates, L: brightness) and ±⊿
X,Y,Z (X,Y,Z: tristimulus values) and ±⊿
Tc, duv, L (Tc: correlated color temperature, duv: deviation) and ±⊿
CIE1976 L*a*b*, ⊿Eab* and±⊿, CIE1976 L*u*v*, ⊿Euv*and⊿ |
| Brightness measurement range(*2) |
0.01～12,000,000 cd/m² |
| Accuracy guaranteed range(*2) |
2°: 1～30,000cd/m²
1°: 4～120,000cd/m²
0.2°: 100～3,000,000cd/m²
0.1°: 400～12,000,000cd/m² |
| Brightness ensures accuracy(*3) |
±4%: 1～5 cd/m²,
±2% : 5 cd/m² or more |
| Chroma guaranteed accuracy |
(1) dx, dy: within ±0.002(*4)
(2) dx,dy: within ±0.008(*5)
(3) dx,dy: within ±0.005 (*6) |
| Repeatability: Brightness(*7) |
1.0%: 1 – 5cd/m²
0.5% : 5 cd/m² or more |
| Repeatability: Chroma(*7) |
0.005: 1-5cd/m²
0.002: 5 cd/m² or more |
| Measurement time |
About 0.5 seconds |
| Analog output (optional function) |
- Analog voltage output: DC 0 – 3V (X2・Y・Z ratio)
- Response speed (FAST):
Range 1: About 30ms Range 2: About 30ms
Range 3: about 30ms Range 4: about 0.3ms
Range 5: about 0.3ms
|
| show |
Dot matrix LCD display 20 characters x 4 lines with lighting function |
| interface |
RS-232C, USB |
| power supply |
Special AC power adapter AC100-240V, 50/60Hz |
| power |
About 2.5W |
| Conditions of Use |
Temperature: 0 – 40℃,
Humidity: 85% RH or less (and no condensation) |
| Overall dimensions (W×D×H) |
120×325×162mm |
| quality |
3.6kg |
(*1) : ±⊿ : Difference from base value
(*2) : For standard A light source
(*3): Standard A light source, automatic range, measuring angle 2°
(*4): Standard A light source, 10cd/m² or more
(*5) : Combination of standard A light source, 100cd/m² or more, and colored glass filter
O-55, Y-48, A-73B, IRA-05, T-44, R-61, B-46, V-44, G-54
(*6) : Our company’s standard panel (RGBW)
(*7): Standard A light source, measuring angle 2°, 2σ, SLOW mode, automatic range
Measurement diameter (mm Φ)
(mmφ)
| Measuring angle |
Determine distance (*1) |
| 350mm |
500mm |
1000mm |
5000mm |
10000mm |
| 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 |
(*1) Distance from the front end of the objective lens metal part
