HDTV Universal Test Chart-3NH

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HDTV Universal Test Chart

HDTV Universal Test Chart Instructions Operating Manual HDTV Universal Test Chart PDF

This HDTV Universal Test Chart Instrument are Certified with

1 Years Warranty (Additional support period of 3 years)

The YE0117 is designed for the quick (mainly visual) appraisal of HDTV camera´s transmission characteristics. It consists of a gray background on which circles, gray scales, horizontal and vertical lines are positioned.

In the center of the test chart on a gray background (D=0.75; reflectance = 18%) a white circle with gray scales and resolution wedges is located. On both sides of this central circle four circles with resolution wedges are arranged.

The 16:9 format is marked by four arrows located on the horizontal and vertical central lines. In addition, four arrows located close to the circles on the upper and the bottom edge of the picture mark the 4:3 format. Thus the test chart can also be used for testing 4:3 cameras.

The white central circles shows four gray scales each of 11 steps. They increase in equal linear steps from D=0.15 to D=1.65 and are used for checking halftone rendition of HDTV cameras. Due to the white surrounding area the results may, however, be qualified.

All frequency values in the test chart are indicated in cph (cycles per height). In the central circle three resolution wedges with different frequencies are arranged vertically and horizontally. They reach from 100 to 250, from 200 to 500 and from 400 to 1000 cph. In addition, two resolution wedges angled in 45° generate frequencies of 200 to 500 cph.

In the middle of the test chart and on the left and right sides there are four squares with line rasters that are inclined at angles of 0, 45, 90 and 135°. They generate a frequency of 200 cph. Those line rasters which are inclined at angles of 45° and 135° generate a different frequency (141.4 cph) in horizontal and vertical direction (due to their inclination). The eight outer circles are arranged in such a way that they can be used both for 16:9 and 4:3 format. The larger ones show cross-shaped resolution wedges. The circular rings, which can also be used for checking geometry, are designed for marking the resolution in vertical and horizontal direction. Resolution is shown at 200, 500, 660, 725 and 800 cph.

The outer circles in the four corners have longer resolution wedges. They cross at 500 cph and have markings from 200 to 800 cph.

In the center of the test chart both in the gray and white area bar elements are arranged with a length of 1 (=half the picture-height), 2, 4, 8, 16, 32 and 64 cph. Left to right vertical gray scale there are five additional short bars with 100, 300, 500, 700 and 900 cph.

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FAQs About Other Charts

SCI&SCE are two method in the color measurement. SCI means Specular Component Include,SCE means Specular Component Exclude.

Under the method of SCE, only test diffuse refection and exclude specular reflection. In that way, the test result is similar to object color was observed by human eyes.

Under the method SCI, both the diffuse refection and specular reflection will be included. In that way, the value about the color is more objective. It will not effect by the environment condition.

When we choose the instrument, those elements should be taking into consideration.

Threenh Technology colorimeter is shipped with an operating instructions and video of English version.If you need an electronic version of the user manual, you can download it from our website download center

a. When the colorimeter is disconnected to the PC, "Connection Timeout" will occur. At the moment, you have to check whether the USB cable is well connected the colorimeter and the PC. Then you can re-plug the USB to try out.

b. After ensuring the colorimeter is connected to the PC with USB cable, turn on the colorimeter and enter the main menu. Select "Comm" and press "Enter" key to start communication.

c. Turn off CQCS3 software, and reopen it.

To quantify color change, take the original L*a*b* values of a sample, and reread after exposure or processing. Compute the difference as 1/2(Emut1 Emut2). The larger the value of ΔE, the more obvious the change of color is, which can be used in quality or stability testing.

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.

a. It’s needed to perform manual calibration for NH310 when first starting.

b. In the subsequent starting, NH310 will perform auto calibration at startup. No need to perform manual calibration.

c. Suggestion: it’s best to perform manual calibration once a week or when NH310 measured data is not accurate.

HDTV Universal Test Chart

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HDTV Universal Test Chart

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1. What\'s the relative between colors and glossiness.(SCI&SCE)

2. How to Install and Use the Colorimeter Product?

3. How to solve the problem when “Connection Timeout” occurred?

4. How to measure color change?

5. How to choose the most suitable Colorimeter Equipment ?

6. In which condition, manual white and black calibration and auto calibration are required for NH310?

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