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Sell Hyperbolic Mirror
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- T/T L/C D/P D/A
- 7 days
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Description:Hyperbolic mirrors are intended to form the image of object in focal plane, and normally are used in astronomy telescopes, as well as other optical systems demanding broadband reflection and excellent photographic effect. For example, R-C telescopes utilize two hyperbolic mirrors as the primary and secondary mirror, which also results in a smaller spot size on and off axis. Cassegrain telescopes have primary parabolic mirrors focusing their rays onto a convex hyperbolic secondary mirror, which yields excellent correction over moderate fields both for visual and photographic astronomy. Like ellipsoidal mirrors and parabolic mirror, hyperbolic mirror can be on-axis or off-axis. They can be made of a variety of materials, including BK7 glass, copper, fused silica, UV grade fused silica, nickel, and other optical glasses. Common coatings include none (uncoated), enhanced aluminum, protected aluminum, dielectric, protected gold and silver. We can provide both on-axis and off-axis hyperbolic mirrors with the shape of either convex or concave. Our company specializes in the production of medium to large-size custom hyperboloid with exacting tolerances, high grade surface finish and difficult coatings. Surface accuracy can be verified by the Foucault test or on the Zygo interferometer. Specifications: 1) Material: BK7 (K9) 2) Diameters: Φ25.4 - 460mm 3) Types: on-axis, off-axis 4) Surface quality: up to 10 - 5 S&D 5) Surface accuracy: up to λ/20 6) Clear aperture: ≥90% 7) Diameter tolerance: +(0.1 - 1) / -0.0mm (depends on dimension) 8) Focal length tolerance: ±(1% - 1.5%) (depends on dimension) 9) Bevel: (0.1 - 2mm) x 45° (depends on dimension) 10) With coating
Contact Us
- Nanjing Intane Optical Engineering Co., Ltd.
- Contact nameJerry Zhou
- Phone86-25-85282507
- Address4 Jiangwangmiao Street, Nanjing City, Jiangsu Province. China
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