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

Grafico ITE Scala di grigi I(Gamma = 0,45) Istruzioni Manuale d'uso Grafico ITE Scala di grigi I(Gamma = 0,45) Il PDF
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1 Anni di garanzia (Periodo di sostegno aggiuntivo di 3 anni)

La YE083 è progettata per la valutazione della riproduzione del mezzo tono di una fotocamera elettronica. Due scale grigie a contracorrente a 11 gradi sono disposte su uno sfondo grigio (D = 0,62). Le scale di grigio vengono gradate logaritmicamente (gamma = 0,45). Il segnale di uscita di una fotocamera ottimale con correzione gamma produce due segnali lineari a passo a contracorrente a 11 gradi. La gamma di contrasto della scala di grigi è 40:1.

I valori della scala grigia a 11 gradi sono i seguenti:

Passo Densità Riflessione in %
1 0.05 89
2 0.13 74
3 0.22 60
4 0.32 48
5 0.43 37
6 0.55 28
7 0.69 20
8 0.86 14
9 1.06 9
10 1.31 5
11 1.65 2

La densità del campo bianco tra la scala di grigi è D = 0,05 (riflettanza = 89%).

 

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FAQ su  Grafici di scala di grigi

During color evaluation, maintaining consistent light sources and viewing conditions is critical. Standard viewing conditions vary depending on the object being evaluated, including factors such as brightness, illumination angle, and observer position. Accurate evaluation can be achieved by establishing a proper environment that meets these requirements.

In development and production sites with extremely high color requirements, such as the automotive and cosmetics industries, accurately reproducing colors is essential. Color evaluation helps determine whether the color matches the intended image or target color. It is the process of measuring color, analyzing its characteristics, and evaluating how well it aligns with a specific target color.

color measurement and color evaluation

Visual Color Evaluation

Color differences are compared visually using standard light sources or reference colors (such as color cards). This method allows color confirmation under conditions close to natural light, making it ideal for color inspection in design and production processes.

Instrumental Color Evaluation

Measurements are performed using a spectrophotometer or colorimeter. This method eliminates the subjective influence of the operator and is widely used for product quality control and industrial applications, enabling scientific quantification of color.


Color evaluation is widely used across industries such as product development and quality control departments in manufacturing.

Typical applications include:

  • Automotive Industry

    Used for quality evaluation of automotive paint, exterior parts, and interior components.

  • Coatings & Materials Industry

    Used to maintain and manage color accuracy for coatings, plastics, glass products, and more.

  • Cosmetics Industry

    Used to verify color consistency in products such as lipsticks and foundations.

  • Molded Products (Resin & Plastics)

    Used to evaluate color difference and uniformity of surface effects in finished products.

  • Furniture & Building Materials Industry

    Used to ensure color consistency in materials such as wood and plywood.

Yes. However, for LED retrofitting to meet industry standards, color- calibrated LED modules must be used for accurate color rendering. We usually do not recommend customers to modify it themselves, as this can affect the accuracy of the color and cause unnecessary losses


A colorimeter is sufficient for basic, routine color checks, while a spectrophotometer is needed for precise, comprehensive color analysis—here’s the clear breakdown:

When a Colorimeter is Sufficient

  1. Simple color matching needs: Ideal for checking if a sample matches a predefined standard (e.g., basic paint batches, plastic parts with solid colors).

  2. Consistent lighting conditions: Works well when measurements are done under fixed, standard light sources (no need to account for varied light effects).

  3. Cost-sensitive, high-volume tasks: Perfect for production lines requiring fast, low-cost color checks without advanced data analysis.

When to Use a Spectrophotometer

  1. Precise color quantification: Necessary for measuring Lab values (lightness, red-green, yellow-blue axes) or detecting subtle color deviations (critical for automotive coatings, high-end textiles).

  2. Complex color analysis: Required for metallic/pearlescent finishes, transparent materials, or samples with gloss/texture variations.

  3. Compliance and documentation: Essential when precise color data (spectral curves) is needed for quality audits, regulatory compliance, or brand color standardization.


To take care of a haze meter to make it last longer, ensure that it is cleaned, recalibrated regularly, and stored in a dry, dust-free place.


Daylight, store light, home light, and UV fluorescence light sources are included in Pantone light boxes as D65, TL84, CWF, A, and UV.


When evaluating the accuracy of a colorimeter, repeatability is a key parameter.

The repeatability standard deviation ΔE*ab of 3nh colorimeters is within 0.03 (measured under the following conditions: after preheating and calibration, measure the white calibration tile 30 times at 3-second intervals and take the average). This figure is superior to all other similar color measurement instruments.

Each of our instruments undergoes rigorous factory inspection and calibration before delivery. In addition, 3nh colorimeters are guaranteed to pass the metrological certification issued by official metrology institutes.

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