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Products

We have track record in production of diverse optical measuring devices, including light source box, light viewer, lens tester, shutter tester and luminance meter.

/ NEW PRODUCTS

Ideal for Classic Camera Repair and Calibration: Multi-Camera Tester SAE-800

The multi camera tester SAE-800 was developed with the supervision and expertise of companies specializing in the repair and maintenance of film and classic cameras. During the golden age of film cameras, this type of product was one of our best-selling products. In that sense, you could say that the SAE-800 is a modern revival of our classic camera testing equipment. Key Features The SAE-800 achieves highly accurate measurements by using a diffuse light source for AE measurement and a dedicated receiver combined with a collimated light source for shutter-speed measurement. Measures the exposure value (EV) and aperture value (F-number) of AE cameras and calculates the exposure error (ΔEV) relative to the reference exposure value Three-point measurement of focal-plane shutters, with both horizontal and vertical measurement capability Measures exposure time, curtain speed, exposure unevenness, X-delay, and other parameters High-accuracy shutter-speed ...
/ Technology

Having trouble calibrating your luminance meter? Introducing a reference light source that can be used on-site

"I don't have time to send it in for calibration." "Calibration cost is expensive." "I want to use the same standard for multiple luminance meters." Introducing a reference light source with stable brightness and high reproducibility is an effective solution to these issues. Tsubosaka Electric offers industrial diffused surface light sources that ensure high uniformity over 95% in brightness, color temperature, and stable luminance values all-times. High Uniformity Ra over 95 Reproduce any color temperature Stable luminance We offer light sources for calibration that are ideal for assisting with luminance meter calibration and differential management. A stable reference light source ensures reliable daily inspections and differential management of multiple luminance meters. Our lineup includes brightness settings ranging from a single fixed point to an adjustable type that can reproduce any luminance value by using a numeric keypad. You can choose the ...
/ Technology

How can you select an appropriate light source for your accurate camera inspection

When selecting a light source, it is important to choose a high-quality product by comparing offerings from different manufacturers. However, identifying a light source with reliable specifications that meet your needs can be challenging. The ideal choice depends on your evaluation criteria, as required specifications, accuracy, and performance vary by application. The following tips can help you quickly identify a light source that is both accurate and reliable. ① Select a light source with high uniformity and the appropriate brightness metric: Luminance or Illuminance. Uniformity of a light source is one of the most important factors to define the quality of itself. In terms of visual lights, luminance and illuminance are mainly used as photometric measures of the light intensity. Luminance describes the luminous intensity travelling from the light source in a given angle, while illuminance describes the light hitting ...

Artificial solar lighting -eclat-

We developed LED artificial sunlight illumination under the trademark "eclat". Our LED has a broad spectral power distribution which is similar to the sunlight spectral power distribution (Please refer to images below). We use violet excitation LED which rise spectral wavelength from around 380nm to around 780nm. In addition to this, we can customize spectrum for your your requirements by adding other wavelengths from UV (Ultra Violet), visible lighting spectrum (VLS) to near infrared (NIR) range, for example, 365, 860, 940, 950, 960, 1060, 1300, 1450, 1550 [nm]. You can use it in the agriculture industry for indoor planting and seeding purpose, in automotive industry for interior and exterior color and scratch evaluation, in art industry for art painting evaluation, etc.  Additionally, it can reproduce lighting for your evaluation under different weather conditions as well, and the evaluation can be ...
/ NEW PRODUCTS, Technology

Fiber optic light sources with 1300nm/1550nm

We developed a new fiber optic light source equipped with two high power intensity LED; 1300nm/ 1550nm. Comparing with Halogen, an intensity of 1300nm is twice as halogen, on the other hand, an intensity of 1550nm is  three-quarters (3/4) as Halogen. In addition to this, feedback function for brightness stability is added to fiber optic light sources. If you have an interest in it, please feel free to consult us. Contact us from here ...