Standard light source device with a separated light source unit and control unit - Luminance box
A diffusor light source with adjustable color temperature via electric control.
This device is a diffuse surface light source for inspecting the brightness instructions or exposure amounts of cameras, such as digital cameras. This allows for the adjustment and alignment of the camera's sensitivity. By incorporating a brightness monitor inside, it continuously outputs a stable brightness value. Through numeric keypad input, the brightness can be freely varied from a low brightness of 2.5 cd/m² to a maximum brightness of 18,334 cd/m² (LV4 to V17) across 131 points. Additionally, it can be externally controlled via RS232C. Since the light source unit and control unit are separate, it can be used according to the convenience of tasks such as environmental measurements. Please utilize this for maintaining high quality. (The integrated models are LSB-111BAT and LSB-111/B) *Customization of special specifications such as brightness values, color temperature, and brightness area is possible. Please consult us once.
basic information
Model: LSB-53/B Luminance: [A Light Source] 4.0–17.0 (131 points) [0.1LV] 2.5cd/m²–18000cd/m² [B Light Source] 4.0–15.0 (111 points) [0.1LV] 2.5cd/m²–4500cd/m² Luminance Area: 100mm × 100mm Luminance Uniformity: ±0.04LV (±2.5%) or less (Φ80mm) Color Temperature: [A Light Source] 2850±100°K [B Light Source] 4870±150°K (specifiable) Light Source Lamp: Halogen Lamp 24V–270W Luminous Flux Control: Luminous Flux Servo System I/F: RS-232C Power Supply: AC100, 110, 220V, 50/60Hz Power Consumption: Approximately 480VA Dimensions & Weight: Light Source Unit 368(W) × 301.5(H) × 284(D) mm, 7kg Control Unit: 282(W) × 134.5(H) × 350(D) mm, 7kg
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Model number/Brand name
LSB-53/B
Applications/Examples of results
We have been providing high-precision calibration development and manufacturing lines for CCD cameras and imagers used in precision image processing for a long time. We have gained high trust from customers who prioritize long-term brightness stability and minimal brightness unevenness. We also accept customization, and our products are used by most camera manufacturers with specifications tailored to each company.
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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.