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  6. Ultra-Low Light Spectral Radiometer SR-UL2

Ultra-Low Light Spectral Radiometer SR-UL2

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SR-UL2

last updated:Nov 04, 2025

テクノオプティス(旧株式会社トプコンテクノハウス)
テクノオプティス(旧株式会社トプコンテクノハウス)
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Approximately 17 seconds of spectral high-speed measurement at 0.005 cd/m², ultra-low brightness spectroradiometer.

The ultra-low luminance spectroradiometer SR-UL2 is a product that has further enhanced the sensitivity and speed of the highly acclaimed ultra-low luminance spectroradiometer SR-UL1R. This device supports the world's highest sensitivity of 0.0005 cd/m² and has a wide dynamic range for measuring luminance from 0.0005 to 300,000 cd/m², making it a standard optical characteristic evaluation device compatible with mega-contrast FPDs. Additionally, it features the industry's highest-speed measurement mode, capable of measuring 0.005 cd/m² in approximately 17 seconds, allowing it to be used not only for design and development purposes but also for high-speed and high-precision management in quality control lines. 【Features】 - Achieves ultra-low luminance measurement (0.0005 cd/m² and above) - Ultra-low luminance high-speed measurement (spectral high-speed measurement of 0.005 cd/m² in about 17 seconds) - Wide dynamic range (0.0005 to 300,000 cd/m²) *For more details, please inquire through document requests or downloads.

    Optical Measuring InstrumentsImage Processing Equipment
超低輝度分光放射計_SR-UL2.jpg

Ultra-Low Light Spectral Radiometer SR-UL2

超低輝度分光放射計_SR-UL2.jpg
超低輝度分光放射計_SR-UL2.jpg
  • Related Link - https://www.topcon-techno.co.jp/

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basic information

The ultra-low luminance spectroradiometer SR-UL2 is a product that has further enhanced the sensitivity and speed of the highly acclaimed ultra-low luminance spectroradiometer SR-UL1R. This device supports the world's highest sensitivity of 0.0005 cd/m² and has a wide dynamic range for measuring luminance from 0.0005 to 300,000 cd/m², making it suitable for optical characteristic evaluation standards for mega-contrast FPDs. Additionally, it features the industry's highest standard high-speed measurement mode, capable of measuring 0.005 cd/m² in approximately 17 seconds, allowing it to be used not only for design and development purposes but also for high-speed and high-precision management in quality control lines. 【Features】 - Achieves ultra-low luminance measurement (0.0005 cd/m² and above) - Ultra-low luminance high-speed measurement (spectral high-speed measurement of 0.005 cd/m² in about 17 seconds) - Wide dynamic range (0.0005 to 300,000 cd/m²) *For more details, please inquire through document requests or downloads.

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Applications/Examples of results

- General optical property evaluation such as brightness and colorimetry of LCD, plasma, organic EL, temperature characteristics, contrast measurement, and light distribution characteristics. - High-precision measurement of brightness and colorimetry of small surfaces such as dashboards and components in automotive applications. - Brightness, colorimetry, and color rendering properties of general lighting and LED lighting fixtures. (Note) Color rendering evaluation: Assessing the properties of a light source that affect the appearance of the color of an object illuminated by lamps and other sources.

Company information

テクノオプティス(旧株式会社トプコンテクノハウス)

テクノオプティス(旧株式会社トプコンテクノハウス)

Testing, Analysis and Measurement

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We, Techno Optics, pursue the infinite possibilities of "light" and provide optical measurement instruments for industries such as LED, FPD, automotive, and lighting as an integrated precision equipment company encompassing planning, development, and maintenance services. In recent years, we take pride in contributing to the business development of our customers with optical measurement instruments used for image evaluation in the rapidly growing smartphone market. Moving forward, we will continue to listen to our customers' voices and keep in mind the resolution of their challenges with our optical technology solutions, striving to accelerate new technology development and enhance after-sales service. Additionally, we at Techno Optics prioritize compliance, respect social ethics, reduce environmental impact, and engage in high-quality CSR activities to provide safe and high-quality products and services, and we look forward to your continued support.

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