Various Fno. of 2 inches and 4 inches.
It can be installed on interferometers from various manufacturers.
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basic information
In addition to the general converging type, a diverging type is also available, allowing for a wide range of measurements even with a short stroke of the interferometer in concave surface measurements.
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Detailed information
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【Reference for Handling Reference Lenses】 - Zygo, Apre, Fujifilm, Tomei Giken - Spherical, converging type, diverging type - Flat reference plate - Radius of curvature: approximately -4,000 (concave) to approximately +5,000 (convex) - Measurement aperture: maximum approximately Φ200mm - Surface accuracy: λ/20 - Mount: Compatible with various manufacturers' laser interferometer mounts - Special coating for high-reflectivity test objects - Custom design and manufacturing available
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Company information
Our company sells various consumable materials essential for the production of optical lenses, liquid crystals, semiconductors, and more, including manufacturing equipment, measuring instruments, abrasives, cutting and grinding fluids, cleaning agents, and chemicals. To produce optical lenses efficiently, we engage in joint development, business partnerships, and OEM contracts with various manufacturers, constantly striving to develop and provide highly original products. Please feel free to contact us if you have any inquiries.