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  • Brightness Meter

    • Min. Order:  

      1

    • Place of origin:  

      China

    diffusion sphere is 150mm and diameter of the testing hole is 25mm. 3. Light absorber is provided to eliminate the effect of specular reflection. Peak wavelength of spectral power distribution of R457 whiteness optical system is 457nm and its half-width is 44nm. 4. Measure and display the whiteness, Fluorescent whiteness (whitening rate) and opacity (%) etc. digitally. 5. Indication error: 0.5% 6

    [Related Keywords : brightness meter, brightness tester, whiteness meter, blue brightness test]

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