Ink and other contrast measuring device CT-1 series
CT-1
Automatic contrast measurement device combining a luminance meter and a light source
This is the world's No. 1 contrast measuring instrument, essential for quality control of high-quality inks. This automatic measurement system combines TechnoOptis luminance meters such as the model SR-5A and BM-5AC with our surface light source and deflector.
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basic information
This device measures the contrast characteristics of color filter inks used in color LCD displays. It places a sample (a glass plate coated with filter ink) between two polarizing plates, and one of the polarizing plates is rotated using a precision motor-driven turntable. By measuring the maximum and minimum values of the transmitted light intensity from a light source controlled at a constant brightness, it determines the extinction ratio in the state of passing through the sample. The measurement is performed automatically under a dark box that blocks external light, controlled by a microcontroller. This device consists of two parts: the optical system main body (with built-in measurement control unit) and a computer system. ■ Features - Full auto calibration - Brightness measurement (max, min), contrast measurement, x, y values - Stable light source usage (CCFL, Halogen D55, white LED) - Data storage and printout functions Thanks to our customers, we proudly hold the number one sales position in ink particle contrast measurement devices and have gained strong trust, being used worldwide. *Customization is possible with spectroradiometers specified by your company.
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Applications/Examples of results
~Examples of Use~ Pigment dyes, coatings, resist, color filters, etc., are widely used in various fields. ~Examples of Achievements~ We have been adopted by major manufacturers for inks, pigments, resists, and panels.
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Company information
For more than half a century, Tsubosaka Electric has specialized in the development and manufacturing of precision inspection equipment for cameras, serving clients both in Japan and internationally. Our measuring instruments have played a vital role in enhancing camera quality since the days of film cameras, supporting camera manufacturers in their production and inspection processes. We offer a comprehensive lineup of inspection and measurement solutions, including: evaluation stable light sources (luminance boxes), shutter testers, electronic collimators, aperture area meters, lens testers, and strobe testers, etc. From hardware design to software development, our products are developed entirely in-house to ensure seamless integration and top-tier performance. Recognized for our manufacturing excellence, we are ISO 9001 certified and trusted by major camera manufacturers worldwide. Our expertise also extends beyond the camera industry, and we also can develop optical measuring instrument for advanced medical devices and autonomous driving where they use proprietary optical sensing technology. Additionally, our contrast testers used to measure the contrast values of resist inks in LCD color filters that are contributing to the advancement of high-definition and high-contrast TVs and monitors across the globe. At Tsubosaka Electric, we pride ourselves on flexibility and innovation. We offer a wide range of customizable measurement solutions and are happy to accommodate special orders tailored to your specific requirements. Please feel free to consult with us.
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