Multiple brightness values can be registered and selected! A semi-integrating sphere LED viewer suitable for evaluating wide-angle lenses.
The "VLBH-93FBC-CRI" is a semi-integrating sphere type LED viewer that uses a semi-integrating sphere with a diameter of Φ93mm. With automatic brightness correction (FB control), the brightness value remains constant at all times. Multiple brightness values can be registered and selected. It thoroughly pursues a broad spectral sensitivity, making it suitable for evaluating wide-angle lenses. 【Features】 ■ Uses a semi-integrating sphere with a diameter of Φ93mm ■ Multiple brightness values can be registered and selected ■ High uniformity of brightness across the surface ■ Long lifespan ■ Suitable for evaluating wide-angle lenses *For more details, please refer to the PDF materials or feel free to contact us.
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【Specifications (Excerpt)】 ■Luminance Surface: Φ90mm ■Luminance Value: Within 3.0-6.0 EV ■Luminance Variation: ±1.5% (within 3%) ■Correlated Color Temperature: 3200±150K, 6500±500K ■Lighting Method: Constant DC lighting (High Color Rendering LED Ra=97) ■External Communication I/F: USB *For more details, please refer to the PDF document or feel free to contact us.
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【Purpose】 ■Evaluation of Wide-Angle Lenses *For more details, please refer to the PDF document or feel free to contact us.
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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.