Blue Light White Index Meter

The blue light whiteness meter evaluates whiteness by irradiating the sample with 457 nm blue light and measuring the intensity of the reflected light. It is used for whiteness testing of materials such as paper and coatings, reflecting the material's ability to reflect blue light.
Selection
When selecting, pay attention to matching the measurement aperture with the sample size, and ensure the calibration plate comes with a traceability certificate. Choose automatic measurement mode to reduce errors, with a repeatability index of less than 0.5%. Select corrosion-resistant housing materials to suit the laboratory environment.

Terms

Instruments

It can measure the blue light diffuse reflection factor R457, analyze the fluorescent whitening agent, and print the results directly with a built-in micro-printer, repeatability error ≤ 0.1, support Opacity and light absorption coefficient measurement.

$ 1348.00

The three-in-one optical path design can simultaneously measure the transmittance of blue light at 430nm, purple light at 395nm and visible light, and the test aperture Φ 1mm is suitable for large thickness materials. Real-time dynamic self-Adjustment ensures accurate data.

$ 373.00

R457 blue light whiteness measurement, Indication Error +/- 2.5, repeatability error ≤ 0.3, equipped with 10V/30W halogen tungsten lamp light source to ensure stable reflection performance detection.

$ 687.00

Geometry conditions were observed using d/o illumination, and the diaMeter of the diffuse sphere was 150mm, which can measure the diffuse reflection factor of blue light and the fluorescence whiteness, and support Multi-ParaMeter analysis such as Opacity and light scattering coefficient.

$ 1300.00

R457 blue light whiteness formula, Measurement range 0~ 199.9%, resolution 0.1, Basis Weight measurement of whiteness of fluorescent whitening objects and paper Opacity, suitable for a variety of materials surface flat samples.

$ 332.00

With high color rendering index CRI = 98 and dual light source design, it provides a variety of color temperature options such as D65, D50, TL84, etc. With light source Timer, uniform lighting and convenient lamp replacement.

$ 783.00

With three light source system, color rendering index up to 98, all metal structure with three drawer, table size 1350 * 900mm, in line with ISO3664 international standards.

$ 2365.00

Using R457 whiteness formula, blue light whiteness and fluorescence whiteness can be measured simultaneously, Repeatability ≤ 0.3, Operating temperature 5~ 35 ℃, optical path design is simple to ensure measurement accuracy and Repeatability.

$ 432.00

In line with ISO3664 international standards, color rendering index of 98, support multi-light source switching, all-metal structure to ensure stability and durability, inclined table in line with visual observation habits.

$ 1913.00

Adopt D65 light source in line with ISO3664 international standards, color rendering index up to 98, equipped with 36W lamp and light source Timer, all-metal structure to ensure stability and durability, inclined table in line with visual observation habits.

$ 1655.00

Repeatability of 0.2 for measurement of diffuse reflection factor using 457 nm blue wavelength can detect Fluorescent Whitening Agent and calculate fluorescence whiteness value, which is suitable for surface whiteness analysis of various materials.

$ 554.00

The three-in-one optical path design can simultaneously measure four sets of data, the test aperture of 1.3mm supports small-size material detection, with Automatic calibration and large-capacity storage functions. Measurement accuracy of +/- 2% ensures stable and reliable results.

$ 361.00

With CRI = 98 high color rendering index and 6500K color temperature, lamp with Timer, all-metal structure, large folio size for easy operation, can be hung and installed to ensure accurate Color comparison.

$ 719.00

It can measure the blue light diffuse reflection factor (R457) and fluorescence whiteness, use d/o illumination observation geometry conditions, test hole diaMeter 30mm, can analyze whether the material contains fluorescent whitening agent and measure a variety of Optical inspection coefficients.

$ 1348.00

Equipment provides a variety of standard illuminant options, maximum support three Illuminant, high CRI = 98, with Illuminant Timer, uniform lighting, easy to operate, suitable for Color Comparison.

$ 848.00

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