Visible and near-infrared lens measuring instrument [Exhibiting at OPIE by Tsuzaka Electric]
Please feel free to consult us about light sources as well as lens measuring instruments.
Currently, the near-infrared (including SWIR) region is being used not only for single-wavelength camera inspections such as surveillance cameras, liquid level detection, and non-destructive testing, but also for image processing combined with the visible range and cameras that utilize a wide wavelength band, such as hyperspectral cameras. Our company is developing measuring instruments for near-infrared lenses targeting up to 2000nm. We will repurpose the product technology established in the visible range. The following products are scheduled to be exhibited at OPIE: "Measurement of the focal position from the lens flange surface" "Measurement of the lens aperture from the light intensity ratio" "Measurement of the peripheral light intensity ratio" "A programmable light source that can illuminate at a specific wavelength or across a wide band" 【Exhibition Name】OPIE'25 【Date】April 23 (Wed) - 25 (Fri), 2025, 10:00 - 17:00 【Location】Pacifico Yokohama 【Booth Number】O-04 【URL】https://www.opie.jp/
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basic information
"Measurement of focal position from the lens flange surface" Model example: BPC-1000 The point where the MTF is maximized is determined as the focal position by placing an image sensor at the focal plane, and the distance from the flange surface is measured. "Measurement of lens aperture from light quantity ratio" Model example: SMD-100T2 Using the light emitted from the light source, a reference is registered at a certain aperture value. The difference from the registered light quantity is displayed in EV. "Measurement of peripheral light quantity ratio" Model example: KK-3 Using a pinhole sensor, the image sensor surface is scanned and the acquired light quantity is plotted to measure the light quantity ratio from the center of the lens to the periphery. "Programmable light source that can illuminate only at specific wavelengths or in a broad spectrum" Model example: LSBS-300SRV-1 It can illuminate at specific wavelengths such as 400nm, 850nm, and 905nm, or reproduce arbitrary spectra by illuminating multiple LEDs of different wavelengths, including broad-spectrum white LEDs.
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Applications/Examples of results
Development, manufacturing, and quality control departments of lens manufacturers Development, manufacturing, and quality control departments of camera manufacturers and camera application product manufacturers From the jig base for measurement samples to the measuring instruments themselves, we also accommodate custom manufacturing.
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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.
