This instrument is a precision white spectrophotometer using an integrating sphere type spectrophotometer based on the D-0° method of the vertical light receiving method of the diffuse illumination system. It is characterized by instant measurement and printing out.
- Spectroscopic measurement 380 to 780 nm (measurement at 10 nm intervals)
- Chromaticity diagram, spectral curve, spectral reflectance by liquid crystal color display
- ISO R457 "whiteness" by C light 2 degree field of view
- WB=0.847Z According to JIS P8123
- Measurement of ISO R557 "Opacity"
[Summary]
This instrument was designed based on the German-made Ellefo upright spectral reflectometer. The "diffuse lighting → 0 degree light receiving" method has the advantage that there is no variation in the measured values depending on the vertical or horizontal direction of the paper, and because the measurement window faces downward, dust does not enter the integrating sphere, preventing it from getting dirty.
Adjustment and inspection are accurate according to ISO/TC6 STFI-IR3 REFERENCE STANDARD and NIST standards.
【composition】
(1) Integrating sphere spectrophotometer body
(2) Control and data processing unit
WINDOWS specification personal computer
Liquid crystal color display/color printer
- Measurement method: JIS-P8148, reflected light d-0° method, transmission 0°-0 method
- Measurement method....Spectroscopic method using a diffraction grating (grating)
- Measurement method: Spectral method using a diffraction grating (grating)
- Detection element: Silicon photodiode array 31-channel type
- Illumination conditions: Integrating sphere (150 mmΦ) method/Diffuse illumination → 0 degree light reception (d-0 degree method)
- Light source: Halogen lamp, 12V100W, 2,000H
- Measurement area... Reflection measurement 30mmΦ・Transmission measurement 30mmΦ
- Reproduction method: 20 measurements with standard white standard deviation within 0.02
- Dimensions......W400 x D520 x H460 (Weight 20kg)
[Measurement part]
- Calibration method: automatic standard adjustment/automatic zero point adjustment
- Operation switch: ZERO. CAL. MEAS.
- I/O interface: RS232C 9600pbs
[Temperature/humidity conditions]
- 15-30°C 20-80% (no condensation)
[Working voltage]
- AC100V 50/60Hz about 200VA
【Display method】
- Display data: colorimetric data from LCD color display
- Chromaticity diagram, spectral curve, spectral reflectance
- Print....print out with a color printer
【Measurement item】
- ISO R457 "Whiteness" (by C light 2 degree field of view)
- WB=0.847Z (JIS P8123)
- WH=100[(100−L) 2 +(a 2 +b 2 )] 1/2
- Measurement of opacity, yellowness, fluorescence whiteness (3.388Z-3Y)
- Tristimulus values X, Y, Z xy L*a*b* ΔL*Δa*Δb*ΔE
- Spectral reflectance, spectral transmittance, spectral curve
【accessories】
- Standard white board ................................1 piece
- Absorbing cylinder (for zero point)..................1 piece
- Opacity black plate......................................1 piece
- Spare light source lamp (12V100W)..........1
- Spare fuses.................................2
- Connection cable..................................1 set
- Recording paper............................ 1 case
- Instruction manual ................................1
