Reflection Optical DensitoMeter

A reflection densitometer calculates the density of ink or coatings by measuring the intensity of light reflected from the surface of an object. It is used in the printing and coating industries to monitor color concentration and ensure batch consistency.
Selection
When selecting, consider measurement accuracy, compatibility with industry standards, and instrument stability. Match the optical structure to the characteristics of the material being measured, and choose between portable or benchtop models based on the operating environment.

Terms

Standards

Instruments

Optical inspection with reflection dual paths, support for 360 degree swirl/spin table and 6 'cursor accuracy, high contrast ratio crystal structure observation without sample staining, infinity Optical inspection system and four hole objective converter.

$ 4024.00

Optical inspection system with infinite distance, stress-free flat-field objective, fretting grid value of 2 μ m, rotating stage with 360 ° scale, support trinocular observation and microphotography, table Travel 30 mm vertically.

$ 2784.00

With transmission and reflection dual lighting mode, support brightfield and polarized observation, objective magnification 4X-100X, pupil distance 55-75mm, hinged barrel can rotate 360 degrees freely.

$ 1721.00

Optical inspection path observation, equipped with 9.7 inch tablet imagery system, provides high contrast ratio image display, no special sample treatment can clearly show the surface morphology and structural characteristics.

$ 5234.00

With two types of reflection lighting, support for bright-field and polarized observation; equipped with 5 million pixel digital CMOS camera for autofocus and real-time video recording; magnification 40X-1600X, using infinity Optical inspection system.

$ 6178.00

Adopt all-metal sheet metal bracket structure, equipped with 36W × 4 reflection lamps and 36W × 4 transmission lamps, color rendering index CRI ≥ 95, tempered Glass and acrylic uniform plate make the light uniform and not dazzling, with rollers and adjustable support feet.

$ 1639.00

Equipped with infinity Optical inspection system and 5 million pixel CMOS camera, support single polarized, orthogonal polarized and cone light observation, converter four-hole design, condenser numerical aperture 1.25, to meet the needs of High Accuracy crystal structure research.

$ 4931.00

All-metal material structure is sturdy and durable, equipped with swirl/spin reflection plate and roller foot for easy adjustment and movement; Graphica imported lamp, color rendering index CRI ≥ 95, reflection and transmission of each 4 36W lamp to ensure uniform lighting.

$ 1187.00

Irreversible discoloration mode, 60 ℃ single temperature measurement, with directional reflection frame for low light long-distance inspection, anti-fouling waterproof protective film to ensure clear reading.

$ 89.00

After overheating, the display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate long-distance identification of low light. Size 25 * 25mm, waterproof and stain-resistant design

$ 89.00

After overheating, the display window shows white characters on a black background, and the frame adopts directional reflection technology to facilitate long-distance identification of low light. The size is 25 * 25mm, and the waterproof and stain-resistant design.

$ 89.00

After overheating, the display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate long-distance inspection of low light. Measuring temperature is 80 ° C, with anti-fouling waterproof performance.

$ 89.00

Using diffuse transmission optical path design, optical density Measurement range 0.00-6 OD, light transmitance accuracy +/- 2%, can simultaneously measure light transmitance, absolute optical density, relative optical density and Dot area ratio.

$ 673.00

Suitable for reflection color measurement of high concentration liquids, sauces and powder samples, the Cuvette bracket design ensures that the measurement environment is completely black to ensure the accuracy and Stability of measurement results.

$ 557.00

Adopt 0 ° illumination diffuse reflection reception principle, Repeatability ≤ 0.3, Indication Error +/- 1.0, suitable for white and shallow Paints hiding power measurement, easy and portable operation.

$ 501.00

Articles

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.
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.
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.
Tap density tester evaluates the accumulation characteristics of sprayed powder.
This article introduces how to use a tap density tester to evaluate the packing characteristics of spray powders. The tap density tester simulates vibration to densely pack the powder and measures the mass per unit volume, thereby obtaining the tap density.
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.
Opacity tester evaluates the covering power of coatings.
The hiding power tester is a professional instrument used to evaluate the covering ability of coatings. It quantifies the hiding effect by measuring the reflectance ratio (contrast ratio) of the coating film on black and white substrates.
Principle and Application of Whiteness Meter in Measuring Coating Whiteness
A whiteness meter quantifies the whiteness of paint samples by simulating human perception of white, measuring the diffuse reflectance of light—particularly in the blue wavelength range—and converting it into a numerical whiteness value. It employs standardized optical configurations and mathematical models, such as the Ganz formula, to assess the brightness and chromaticity of coatings.
The role of a reflection densitometer in controlling printing ink concentration.
The reflection densitometer measures the light reflectance of the ink layer and converts it into a density value, thereby objectively reflecting the thickness and concentration of the ink layer. In printing, it is used to monitor solid density, ensuring stable ink supply, replacing subjective judgment, and enabling data-driven control.