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This section provides an overview for display mtf measurement systems as well as their applications and principles. Also, please take a look at the list of 9 display mtf measurement system manufacturers and their company rankings. Here are the top-ranked display mtf measurement system companies as of December, 2024: 1.CI Systems, Inc., 2.ASTRODESIGN,Inc., 3.PROLOG OPTICS LTD..
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A display modulation transfer function (MTF) measurement system is a device for assessing display resolution using MTF, a spatial frequency characteristic of optical systems, commonly found in displays.
Display resolution depends on factors beyond pixel count and scanning lines, such as pixel arrangement, luminance, contrast, gamma characteristics, color reproduction range, color temperature, and white balance. MTF is a theoretically solid method for evaluating overall system resolution, from TV camera lenses to transmission systems, display characteristics, and human visual perception.
Optical property evaluation of displays includes glare, sharpness, anti-glare, and transmission distribution. Sharpness, or the blurriness of an image, is assessed using point spread function (PSF), line spread function (LSF), and amplitude transfer function (MTF).
MTF is plotted against spatial frequency, with higher values indicating better transfer characteristics and less blur.
Display MTF measurement systems evaluate the sharpness of displays and their components, serving as vital quality control tools.
They are particularly used for assessing LCD panels in devices like 4K/8K TVs, cell phones, PCs, in-vehicle systems, and measuring instruments. MTF measurement features high accuracy, cost-effectiveness, and ease of operation.
In MTF measurement, the input signal from a camera maintains a constant amplitude at high frequencies, with the output amplitude decreasing with increasing frequency. This output is the MTF.
MTF can be measured using three methods: slit, edge, and chart methods.
This method involves capturing a metal slit image and performing a Fourier transform. It is primarily used in the United States and requires relatively expensive test devices.
The edge method, recommended by the International Electrotechnical Commission (IEC), calculates MTF by Fourier transforming an edge image to obtain the LSF.
The chart method captures a square wave test pattern, corrects it to obtain the input/output contrast ratio of a sine wave, and is commonly used in Japan and Europe due to lower test device costs.
Display MTF measurement systems, combined with a signal generator and a measurement camera, can evaluate display MTF effectively. They can also measure graininess, luminance uniformity, and gradation curve with high accuracy.
Few manufacturers specialize in display MTF measurement systems.
DM&S, a German company, offers the SMS-1000, measuring glare and evaluating sharpness, anti-glare, and transmission characteristics. Astrodesign Inc. provides the DT series, developed in collaboration with NHK, for real-time MTF measurement of displays. S.S. Giken Co., Ltd. offers the NS-2002 system, evaluating resolution, graininess, and tonality of X-ray display images using MTF.
*Including some distributors, etc.
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TOUMEIGIKEN Co., Ltd., established in Ageo City, Saitama, Japan, is a manufacturer of optical measuring instruments. Its product line includes Laser Interferometers, crucial for precision evaluation of surface shape and accuracy in polished items like lenses and mirrors. The company also offers various types of standard lenses for laser interferometers, facilitating the measurement of surface accuracy in convex and concave lenses. Notably, its Fringe Analyzer, introduced in 2020, features enhanced user interfaces and new analysis functions like ISO10110-5 support, ensuring accessible yet high-precision measurement, evaluation, and analysis for both novices and experts.
Phasics, founded in 2003 and headquartered in Saint-Aubin, France, is an ISO 9001-certified supplier of optics metrology and imaging solutions. Its product portfolio includes quantitative phase imaging cameras, wavefront sensors, and integrated optics testing stations. The products are used in several applications, including quantitative phase imaging for biology, gas density measurements, and refractive index mapping in materials. The company’s patented QWLSI technology was developed to overcome the limitations of Shack-Hartmann wavefront sensors and Fizeau interferometers and can measure diverging beams with no relay lens. It uses a smart diffractive grating design and offers four times more resolution than Shack-Hartmann.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CI Systems, Inc. |
16.0%
|
| 2 | ASTRODESIGN,Inc. |
16.0%
|
| 3 | PROLOG OPTICS LTD. |
12.0%
|
| 4 | Laser Optronic S.r.l. |
12.0%
|
| 5 | PHASICS S.A |
12.0%
|
| 6 | Image Science Ltd |
12.0%
|
| 7 | TRIOPTICS GmbH |
12.0%
|
| 8 | HP INSTRUMENTS |
8.0%
|
Derivation Method
The ranking is calculated based on the click share within the display mtf measurement system page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
2 | 22.2% |
United States of America
|
1 | 11.1% |
Israel
|
1 | 11.1% |
Italy
|
1 | 11.1% |
India
|
1 | 11.1% |
United Kingdom
|
1 | 11.1% |
Germany
|
1 | 11.1% |
|
France
|
1 | 11.1% |
6 products found
6 products
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