The YE0165 is designed for evaluation the halftone reproduction of 16:9 electronic cameras. Two 11-graduated counter current gray scales are arranged on a gray background (D ≈ 0.56), the gray scale corresponds to the ITU recommendation BT.709.
The output signal of an optimally gamma-corrected camera according to BT.709 generates two counter current, linear step signals.
The contrast range of the gray scale is 40 : 1.
The values of the 11-graduated gray scale are as follows:
Step | Density | Remission in % | Video signal for BT.709 in % | Video signal for gamma 0.45 in % |
1 | 0.05 | 89 | 100 | 100 |
2 | 0.13 | 74 | 91 | 92 |
3 | 0.22 | 60 | 82 | 84 |
4 | 0.32 | 48 | 73 | 75 |
5 | 0.43 | 37 | 64 | 67 |
6 | 0.56 | 28 | 55 | 59 |
7 | 0.70 | 20 | 46 | 51 |
8 | 0.88 | 13 | 37 | 43 |
9 | 1.08 | 8 | 28 | 35 |
10 | 1.34 | 5 | 19 | 26 |
11 | 1.64* | 2 | 11 | 19 |
*The production process for reflective charts allow a maximum printed density of 1.64. The target value for the darkest step is 1.70. Therefore the distance of the last step differ slightly.
Two black fields and a white field are located between the gray scales. The density of the black fields in the middle is D > 3 (remission < 0.1 %), the white field between has a density of 0.05 (remission 89.9%).
Recommended usage:
Adjust the aperture until the lightest patch reaches 100% video signal at the waveform monitor. With an optimally corrected camera according to ITU recommendation BT.709 the darkest patch will reach 10% signal level.
When using this chart with a gamma correction of 0.45 the video signal level for each step will change as listed in the table above.
With 12 rigorous quality inspection processes in place, we ensure a high yield rate of up to 98% for batch processed precision parts.
FAQs About Grayscale Charts
a. Right click "! USB Device" or "! SCI USB2Serial (COM6)", "Update Driver" -> "Install from a list or specific location (Advanced)" -> "Next" ->"Include this location in the search" -> "Browse", specify USB driver file path "CQCS3USB_Driver", click "Next". Then it will install successfully.
b.Detailed installation information please refers to "2.2 Installing USB Driver" in Color Quality Management System User Manual.doc.
Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.
Yes, we warmly welcome and sincerely invite you or your team to visit our factory, we will help to arrange hotel and pick up you from airport.
Our professional team will give you the best suggestion as long as you tell us what kind of test you need to do and the required specification.
The Ideal Accurate and User - Friendly Spectrophotometer for Your Needs
This Spectrophotometer device measures the reflectivity,absorbance, transmittance, and fluorescence of light passing through samples, providing invaluable data for a wide range of applications, provide unrivaled accuracy for reliable results.
Selecting an appropriate spectrophotometer offers significant advantages for precision color analysis and quality control. When choosing an accurate and user - friendly spectrophotometer, consider factors such as wavelength range, sensitivity, sample handling options, and available software features. By investing in the right spectrophotometer, you can streamline your analytical processes, obtain more accurate results, and enhance the overall efficiency of your laboratory or industrial operations.
Choosing the right model—whether portable, benchtop, or inline—aligns technology with specific industry needs, ensuring long-term reliability and optimized color management.