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Tipi di 3NH Grafici di scala di grigi Prodotti

Grafico ITE Scala di grigi I(Gamma = 0,45)

Grafico di prova in scala di grigio a 11 passi

Grafico di prova della scala di grigio HDTV

Grafico ITE Scala di grigi II(Gamma = 1)

Grafico di prova della scala di grigio (11 passaggi)

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FAQ su  Grafici di scala di grigi

Consistency in calibration is important to account for imbalances arising from wear and tear of the probe, probe pressure, variation from the environment, and fluctuations in daily usage. This is also necessary to maintain the best quality to various international standards.


I livelli di lucidità della vernice in polvere sono classificati come:

● Piano: 0-10 GU

● Raso: 11–40 GU

● Semi-lucido: 41-70 GU

● Lustosità: 71-85 GU

● Alta lucidità: 86+ GU

Questi vengono misurati ad un angolo di 60° per la standardizzazione.


Measurement Accuracy (dE/ΔE): The smaller the value, the higher the match between the color measured by the colorimeter instrument and human visual perception. Generally, dE < 1.0 is regarded as the industrial passing line, while dE < 0.5 falls into the high-precision level.

Measurement Structure: D/8 (integrating sphere structure) is the universal standard, which includes two modes: SCI (Specular Component Included, with specular reflection light) and SCE (Specular Component Excluded, excluding specular reflection light). 45/0 (ring illumination) simulates the human eye's viewing angle and is more suitable for judging reflective materials.

Repeatability: It refers to the difference in color results when measuring the same point multiple times. The equipment can achieve ΔE < 0.08, ensuring highly reliable measurement results.

Illumination Source and Viewing Angle: It is recommended to choose the combination of CIE standard light source D65 (simulating daylight) and a 10° viewing angle.

Application Scenario Requirements: It is necessary to clarify the purchase purpose (quality inspection? R&D? material evaluation?) and the usage environment (laboratory, workshop or field work?).


Zero calibration of a hazemeter is a critical pre-measurement procedure to ensure the instrument’s accuracy by resetting its baseline to "zero" when no haze or light attenuation is present.

  1. Align the hazemeter’s measurement window with air or a black background, ensuring no objects block the window.

  2. Press the hazemeter’s zero calibration button and wait for the instrument to complete automatic calibration. At this point, the instrument should display a zero haze value and a zero light transmittance value.

  3. Observe the instrument’s display to confirm the zero calibration result stabilizes near zero. If the zero calibration is inaccurate, repeat the above steps multiple times until the displayed haze and light transmittance values stabilize near zero.

Perform 0-degree calibration before testing, this eliminates inherent instrument drift, environmental interference, or residual signal errors, ensuring subsequent measurements of transparent/translucent samples (e.g., plastic films，pvc, glass, coating, displays and cosmetic packaging) are reliable. Correct for minor instrument deviations caused by long-term use, temperature changes, or power fluctuations.

Colors look different under various lights mainly because of metamerism—a phenomenon where two colors that match under one light source fail to match under another, caused by differences in the spectral composition of light.

object_Colors_look_different_under_various_lights1

Different lighting varies the color perception of objects. Warm light, like that from incandescent bulbs, tends to make colors more yellow, while daylight presents a bluish tint. Our color vision system plays a compensating role using a mechanism called color constancy.

Every light source emits light with a unique "spectral fingerprint" (i.e., the range and intensity of wavelengths it contains). This directly affects how an object’s surface reflects light and how our eyes perceive its color.

An 18% gray background reduces distractions and color bias, helping in a more accurate assessment.


Ulteriori Grafici di scala di grigi Applicazioni e soluzioni

Gestione avanzata del colore nell'industria tessile
Soluzioni ottiche per la misurazione del colore dei pigmenti che cambiano colore
Rilevamento del colore del prodotto in plastica
Panoramica degli strumenti di misura del colore di stampa
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