| CEO | BOG Min gab | ||
|---|---|---|---|
| Address | (34027) 대전 유성구 테크노10로 44-9 D동 (탑립동, (주)코노바코리아) | ||
| Tel | 070-4624-6110 | Homepage | |
| Exhibits |
Y&DK Co., Ltd. manufactures aerospace mirrors, which are a core technology of satellite cameras and play a crucial role in providing clear and high-resolution images. The larger the diameter and the more precise the shape of the mirror, the better the image quality it ensures. By reducing the weight of the mirrors by over 70% through lightweight processing, we can lower satellite launch costs and facilitate the movement of satellites. To ensure stable operation in the extreme environments of space, where temperatures can range from below -180 degrees Celsius to over 120 degrees Celsius, we use special materials such as Zerodur, ULE, Beryllium, and Silicon Carbide that have low thermal expansion. These materials minimize deformation due to temperature changes, maintaining the stability of the mirrors. The most significant feature of aerospace mirrors is the precision of their surface. Unlike ordinary mirrors, satellite camera mirrors require precision at the level of tens of nanometers (nm), which is akin to cutting a hair into 50,000 pieces. Given that the wavelength of light is about 500nm, much more precise machining and measurement are required. Furthermore, to minimize aberrations, the mirrors maintain aspherical/freeform optical surfaces instead of spherical ones. Aspherical/freeform mirrors are more complex and difficult to manufacture and inspect than ordinary spherical mirrors, but they are essential for high-resolution imaging. These mirrors minimize aberrations, maximizing the performance of satellite cameras and space telescopes. Y&DK Co., Ltd. adopts these advanced technologies to process ultra-precision optical systems with spherical, aspherical, and freeform shapes. We also produce optical systems optimized for satellite cameras and telescopes through honeycomb structure machining for lightweighting. Our mirrors boast the highest quality and performance, providing stable images even in the extreme environments of space. |
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