Aperture ColoriMeter

The small aperture colorimeter captures reflected light from the sample through a micro-aperture, converts it into electrical signals via a sensor, and analyzes color data. It is used for color comparison and quality control of products such as paints and inks, and can detect small-area or curved surface samples.
Selection
When selecting, consider matching the measurement aperture to the sample size, check the instrument's repeatability metrics, and confirm support for the required color space. Pay attention to the instrument's ability to shield against ambient light, and evaluate its portability and suitability for fixed measurement scenarios.

Terms

Instruments

Featuring a 20mm large aperture design, it enables uniform measurement of textured and rough surfaces; repeatability ΔE*ab ≤ 0.03 ensures high precision; equipped with a touchscreen and color card matching for convenient operation, supporting multiple color difference formulas and color spaces.

$ 490.00

Equipped with a 50mm large test aperture, it is particularly suitable for measuring objects with uneven surfaces; the standard deviation ΔE*ab ≤ 0.03 ensures ultra-high repeatability; it can display spectral reflectance curves, providing professional color data.

$ 1455.00

1000 wire precision blazing grating and silicon Photocell, photovoltaic cell array, Optical inspection resolution less than 10nm, can simultaneously measure SCI/SCE Light spectrum, Repeatability Delta E * ab within 0.03, support dual aperture switching and camera positioning.

$ 6012.00

Using dual array 256 pixel CMOS Detector and 5 million life LED Illuminant, test Wavelength range 360-780nm, support three measurement aperture automatic switching, built-in temperature monitoring compensation to ensure accurate data.

$ 6980.00

With 8mm/4mm dual measurement aperture, it can be switched to adapt to different surfaces; Repeatability Delta E * ab within 0.06 to ensure measurement accuracy; Integrated camera positioning and automatic whiteboard calibration, easy and efficient operation.

$ 2381.00

Adopt Dual Light Path Array Sensor to Ensure Measurement Stability, Equipped with Camera Assisted Positioning System, Support Φ 8mm/Φ 4mm Dual Aperture Switching, Repeability accuracy Delta E * ab ≤ 0.03, Integrate a variety of Color Spaces and Standard light sources.

$ 4882.00

Using silicon photodiode array and dual 32-group inductors, Repeatability Delta E * ab is controlled within 0.05, supports Dual Measurement Aperture of Φ 4/8mm, adapts to a variety of surfaces, and ensures stable and efficient measurement.

$ 4237.00

The 45/0 circular illumination geometry is used, and it is equipped with a dual measurement aperture of Φ 8mm and Φ 4mm. The chromatic value repeability is within Delta E * ab 0.03, and it supports the measurement of fluorescent samples and the calculation of various color difference formulas.

$ 4237.00

Using silicon photodiode array sensor, Repeatability Delta E * ab control within 0.06, equipped with 8mm measurement aperture, support camera viewing positioning, to ensure accurate and efficient measurement.

$ 2978.00

Using concave grating spectroscopy, equipped with 256 pixel dual array CMOS Detector, Measurement time of about 1.5 seconds, chromatic value Repeatability Delta E * ab within 0.03, support fluorescence sample measurement and multi-industry applications.

$ 4237.00

The measurement aperture is only 1mm, which can accurately measure small or special-shaped surfaces. The repeability is ≤ 0.03, and the accuracy is high. With split design, Probe can flexibly align or invert measurement, and the operation experience is good.

$ 990.00

With 8mm/4mm dual measurement aperture, it can be switched to adapt to different surfaces; LED blue Excitation light source, Repeatability up to Delta E * ab 0.06; Support camera viewfinder positioning and automatic whiteboard verification, easy and efficient operation.

$ 1768.00

Measurement range of 25~ 120cSt, outflow aperture of 2.53mm, suitable for laboratory viscosity testing.

$ 167.00

With a 7.5mm aperture design, it provides 42 holes and supports a variety of testtube specifications to ensure Temperature uniformity and Fast Response, suitable for Sample Handling in high temperature environments.

$ 148.00

Aperture 4.12mm, viscosity measurement range of 70~ 370cSt, aluminum alloy Cup with stainless steel aperture, in line with ASTM D1200 standard, suitable for laboratory viscosity testing.

$ 167.00

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.
The combination of hiding power chart paper and a spectrophotometer enables the digital evaluation of hiding power.
This article introduces how to combine hiding power cards with spectrophotometers to achieve digital assessment of hiding power.
Colorimeter evaluation of color difference in anodized coloring layers
This article explains how colorimeters are used to evaluate color differences in anodized coloring layers. It describes how colorimeters convert colors into numerical values based on international standards and quantify color variations by calculating the color difference ΔE.
Key steps for measuring the efflux time of varnish using a viscosity cup method
This article introduces the method for measuring the outflow time of varnish using a viscosity cup. The principle is based on Poiseuille's law, where viscosity is estimated by recording the time it takes for the liquid to completely flow out from the small hole at the bottom of the cup—longer times typically indicate higher viscosity.
A spectrophotometer uses digital language to describe colors, making color differences impossible to hide.
A spectrophotometer measures the color of an object through spectral analysis, converting reflected light data into spectral curves. It then calculates chromaticity parameters such as L*a*b* based on international standards, achieving a digital representation of color.
How to Interpret Color Difference Lab Values Measured by a Spectrophotometer? Save This Color Difference Judgment Standard Now!
This article explains how spectrophotometers measure and evaluate color differences using the Lab color space. In the Lab values, L represents lightness, while a and b indicate the red-green and yellow-blue color biases. The color difference ΔE is calculated using a formula to quantify the variation between a sample and the standard.