The “concavo twisted 300×300” product is used for various applications that require high-precision, uneven surfaces. Specific examples of its use include the production of optical components such as optical lenses, light guide plates, prism sheets, Fresnel lenses, and lenticular lenses. These components require high surface accuracy to diffuse, condense, or reflect light beams with precision. For instance, the lenticular lens, which has a concavo-convex shape, is used in the printing of three-dimensional photographs, and the Fresnel lens is suitable for high-precision applications. The product is particularly effective for creating surfaces with fine and high accuracy, making it suitable for materials used in a wide range of optical applications

  • A large, slightly concave disc made of metal
  • A concavo-convex shape with small cylinders arranged in a certain way


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