Reflectance PhotoMeter

A reflectometer analyzes color and gloss by measuring the intensity of light reflected from the surface of a sample. It uses a standard light source to illuminate the sample, and a detector captures the reflected light, converting it into an electrical signal. This signal is then processed to display colorimetric values. It is used for product color quality control and production process monitoring in industries such as coatings, inks, and plastics.
Selection
When selecting a reflectometer, consider factors such as measurement geometry, aperture size, instrument repeatability, and the functionality of accompanying software. Choose an appropriate model based on the surface characteristics of the sample, and pay attention to the ease of calibration and long-term stability of the instrument to ensure it meets daily testing requirements.

Terms

Standards

Instruments

With 45/0 reflectance and hiding power test function, repeability 0.2%, repRoducibility 0.5%, automatic calibration and correction of black and white board values, support USB data transmission and statistical mode.

$ 646.00

Made of high-quality non-fluorescent paper, does not contain Fluorescent Whitening Agent, black reflectance < 1, white reflectance 80 +/- 2, Laminating design enhances anti-Curl ability, test area of 0.1 square Meters.

$ 89.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

$ 88.00

Using non-fluorescent paper substrate, white reflectance 80 +/- 2, black reflectance < 1, Laminating design enhances Curl resistance, 0.1 square Meter standard area is suitable for spreading rate testing.

$ 91.00

Made of non-fluorescent paper, does not contain Fluorescent Whitening Agent, the black part reflectance is less than 1, the white part reflectance is 80 +/- 2, the surface is smooth and anti-Curl, and the test area is 0.1 square Meters.

$ 91.00

Measurement accuracy of +/- 1, resolution 0.1, support USB and Bluetooth data output, using Photocell, photovoltaic cell technology for reflectance detection, suitable for a variety of material surface analysis.

$ 517.00

White part reflectance 80 +/- 2, black part reflectance less than 1, surface smoothing anti-Curl, suitable for 0.1 square Meter spreading rate test, wettability is good for checking.

$ 89.00

Adopt 45/0 lighting mode, the measurement diaMeter is Φ 20mm, Repeatability Delta R0.1 or less, intelligently store the calibrated value, no need to calibrate frequently, compact and portable can directly measure reflectance value.

$ 490.00

Using 450nm Illuminant and 7 * 14mm elliptical measurement aperture, can accurately measure transparency and surface reflectance, support USB and Bluetooth data output, suitable for a variety of material detection.

$ 517.00

Measurement time is only 1.5 seconds, Repeatability is less than R0.1, which can measure a variety of whiteness indicators and reflectance, and is suitable for the analysis of fluorescent whitening samples.

$ 800.00

Colorimetric analysis is achieved using a pre-measurement design, which reacts with nickel to form a blue complex. Measurement range covers 0.00 to 7.00 g/L, and it is suitable for a variety of Photometer instruments.

$ 540.00

Adopt 45/0 geometrical optics structure, repeability accuracy Delta E * ab within 0.04, equipped with large integrating sphere and 3.5 inch Touchscreen, support Light spectrum reflectance Linear dispersion display and color scheme function.

$ 2623.00

Intelligent storage calibrated value, no need to calibrate frequently; Compact and portable, one-handed operation; accuracy up to 1%, Repeatability 0.2%; Long life Illuminant, Good Stability; Built-in rechargeable battery, can be used for a long time.

$ 351.00

Measurement range of 0.00~ 3.00 mg/L using Nessler method, adding 4 drops of Reagent each time can quickly react to color rendering, compatible with direct reading of Photometer, providing 100 stability testing.

$ 212.00

Black part reflectance is less than 1, white part reflectance is 80 +/- 2, Laminating design enhances anti-Curl ability, size 145 × 262mm is suitable for spreading rate testing.

$ 89.00

Articles

Use of Fluorescence Spectrophotometer in Measuring Excitation and Emission Spectra of Anti-Counterfeiting Fluorescent Inks
This article introduces the application of fluorescence spectrophotometry in the spectral measurement of anti-counterfeiting fluorescent inks, including instrument calibration, sample preparation, and methods for measuring excitation and emission spectra.
Spectrophotometer measures ink spectral reflectance and opacity.
This article introduces how to measure the hiding power of ink using a spectrophotometer. The instrument irradiates the ink sample, measures its reflectance within the visible light spectrum, and calculates the hiding power using the Kubelka-Munk model.
Application of Laboratory Coating Machines in the Coating of Optical-Grade PET Anti-Reflection Coatings
This article discusses the application of laboratory coating machines in the preparation of anti-reflective coatings on optical-grade PET substrates. By controlling parameters such as coating speed and gap, the coating machine enables precise adjustment of coating thickness, thereby enhancing light transmittance and reducing reflection.
UV spectrophotometer for measuring residual monomers in polymer solutions.
This article introduces a method for determining residual monomers in polymer solutions using ultraviolet spectrophotometry. The principle relies on the characteristic absorption of monomers in the ultraviolet region, calculating their content based on the relationship between absorbance and concentration.
UV-Vis-NIR spectrophotometer measures the transmittance of anti-reflection coatings.
This article introduces the method of measuring the transmittance of anti-reflective coatings using a UV-Vis-NIR spectrophotometer. The instrument is based on the Beer-Lambert law, calculating transmittance by comparing the light intensity of the sample and the reference, covering a wide spectral range from ultraviolet to near-infrared.
Gloss meter measures the surface brightness of packaging film.
This article introduces the principle and method of using a gloss meter to measure the surface glossiness of packaging films. The gloss meter quantifies the specular reflection capability of a surface in gloss units by measuring the ratio of reflected light from the sample to that from a standard plate.
Reflectometer Selection: Light Source Geometric Conditions and Contrast Ratio Testing
This article primarily discusses that when selecting a reflectometer, the geometric conditions of the light source are crucial, as they directly affect the accuracy of the measurement results.
The coating machine applies an anti-reflection coating on the surface of optical lenses.
A coating machine is a precision device used for depositing anti-reflection coatings on the surface of optical lenses. Based on the principle of light interference, it forms a thin film of specific thickness on the lens surface through physical or chemical methods to reduce light reflection and enhance light transmission performance.
Determination of Transmittance of Resin Solutions Using UV-Visible Spectrophotometer
This article introduces the method of measuring the transmittance of resin solutions using a UV-Vis spectrophotometer.
Ultrasonic thickness gauge for detecting thick coatings and composite coatings.
Ultrasonic thickness gauges measure coating thickness using the principle of ultrasonic pulse reflection, calculating the result based on the propagation time of sound waves in the material and the speed of sound. When detecting thick coatings and composite coatings, challenges such as acoustic attenuation of the material, unknown sound speed, and signal recognition at multi-layer interfaces must be addressed.
Reflectometer for measuring the hiding power of colored paint coatings
This article introduces the method of using a reflectometer to measure the hiding power of colored paint coatings. Hiding power refers to the ability of a coating to conceal differences in the underlying color. Traditional methods relying on visual judgment are prone to subjective influences, while instrumental measurement offers greater objectivity and accuracy.
Application of Gloss Meter in Gloss Measurement of Varnish Coatings
A gloss meter is used to measure the gloss of varnish coatings by detecting surface-reflected light to quantitatively assess the appearance of the coating. The measurement is based on the principle of specular reflection of light, commonly employing angles such as 20°, 60°, and 85° to correspond to different gloss ranges, and follows standard formulas for calculation.
Glossmeter 75-degree angle measurement for paper gloss
This article introduces the principle and method of measuring paper gloss using a 75-degree specular gloss meter. Gloss is defined as the ratio of the light reflected from the paper surface to that reflected from a standard reference plate, with the 75-degree angle commonly used for measuring medium to high gloss papers.
Ultrasonic Thickness Gauge Measures the Thickness of Flexible Packaging Materials
This article introduces the principles, technical points, and operational procedures for measuring the thickness of flexible packaging materials using an ultrasonic thickness gauge. It is based on the principle of ultrasonic pulse reflection, which calculates thickness by measuring the propagation time of sound waves through the material.
Coating Distinctness of Image (DOI) Meter Evaluates Surface Imaging Clarity
The Coating Distinctness of Image (DOI) meter is an optical instrument used for quantifying the imaging clarity of coating surfaces. It analyzes the reflection of standard patterns on the coating, measuring the ratio of specular reflection to diffuse reflection to obtain an objective DOI value.