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  6. Color brightness meter "BM-5AC" enables high-speed measurement of ultra-low brightness in 2 seconds.

Color brightness meter "BM-5AC" enables high-speed measurement of ultra-low brightness in 2 seconds.

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BM-5AC

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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The successor model of the color brightness meter BM-5AS, a high-speed and high-precision brightness and color measurement instrument with improved color accuracy.

The management of brightness and colorimetry for optical devices such as FPD-related products, automotive instrument panels, and phosphorescent materials is becoming increasingly stringent. As a result, there is a growing demand for the high-precision and high-speed measurement of weak light. This product has significantly improved colorimetry compared to the conventional model BM-5AS, combining the high speed of traditional color luminance meters with the high reliability of spectroradiometers. 【Features】 ◾ Capable of measuring from small areas to wide ranges with five different measurement angles using a single unit ◾ High-speed measurement of ultra-low brightness in just 2 seconds ◾ Built-in analog output allows for data recording and waveform observation using oscilloscopes and other devices

    Other measurement, recording and measuring instruments
BM-5AC.jpg

Color brightness meter "BM-5AC" enables high-speed measurement of ultra-low brightness in 2 seconds.

BM-5AC.jpg
BM-5AC.jpg
  • Related Link - https://www.techno-optis.com

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basic information

◾ Significant improvement in color accuracy ◾ Capable of measuring from small areas to large ranges with one device using five measurement angles ◾ Built-in analog output allows for data recording and waveform observation using an oscilloscope ◾ Fast response time of 0.05ms enables observation of the rise and fall response characteristics of flashing lights

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Applications/Examples of results

Evaluation of optical properties related to displays and lighting ◦ Measurement of luminance and chromaticity of small surfaces such as automotive instrument panels, audio systems, and control panels ◦ Measurement of luminance, chromaticity, and color temperature of phosphors, glow-in-the-dark materials, and various special light sources

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Color brightness meter "BM-5AC" enables high-speed measurement of low brightness in 2 seconds.

Color brightness meter "BM-5AC" enables high-speed measurement of low brightness in 2 seconds.

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Fine Tech Japan Specialized Technology Seminar "Chromaticity and Uniformity Inspection in Micro LED"

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At the 28th Fine Tech Japan (LCD, Organic EL, Sensor Technology Exhibition) specialized technical seminar, I will also be giving a presentation. As μLED is becoming the mainstream device to meet the expanding display's color gamut and contrast, the uniformity of brightness and chromaticity has become an issue due to the intensification of self-emission. The world's first developed two-dimensional spectral radiance meter, SR-5000, can analyze subpixels smaller than 2um! In this presentation, I will introduce examples. ■ "Chromaticity and Uniformity Inspection in Micro LED" Presentation December 7 (Friday) 9:30–10:20 Optical Measurement Department Sales Group Manager Kazuto Nishikawa We sincerely look forward to your attendance!

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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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