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Precision Polishing Aspherical Lens

Precision polishing aspherical lens uses CNC ultra-precision aspherical machining machine, processing accuracy ≤0.05 microns. It uses diamond tools, under the condition of precise control of the machine tool and processing environment, to achieve ultra-precision grinding of optical aspherical plastic domain, directly grinding out high precision aspherical lens that meets the optical quality requirements. The ultra-high precision correction polishing technology is used to polish the lens surface, and the optical aspherical surface shape accuracy is less than 0.1 micron, and the surface roughness Ra is less than 0.01 micron.

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Specifications of Precision Polishing Aspherical Lens

Precision Polishing Aspherical Lens product parameter table
ProjectIndicator requirements
1.MaterialUse various materials such as optical quartz, optical glass, infrared lens, etc.
2. DiameterOD≤300mm
3. Center thicknessaccording to customers needs
4. Effective focal lengthaccording to customers needs
5. Working distanceaccording to customers needs
6. Design wavelength430~633nm, 630~780nm, 1550~1620nm
8.CoatingAR anti-reflection coating R<0.2% @λnm according to customer requirements
9. Eccentricityaccording to customers needs
10. Effective apertureED>80% aspheric area
11. Surface shapeUltra high precision Rt≤0.1μm, high precision Rt≤0.5μm, precision Rt≤1μm
12.Surface quality60-40, 40-20, 20-10, 10-5

Features of Precision Polishing Aspherical Lens

Features of Precision Polishing Aspherical Lens
  • One-stop customized production: Tianyanggu Company processes various plano-convex, biconvex, and convex-concave structure spherical lenses according to customer requirements. The lens shape can be circular, D-shaped, square, trapezoidal, etc.

  • Material: Use optical quartz, optical glass and other materials.

  • Lens properties: uniform light spot, clear projection, complete specifications, aerospace quality

    Product indicator description:

    1. Maximum dimensions of circular spherical lens: OD≤φ300mm

    2. Maximum dimensions of square spherical lens: ≤210×210mm

    3. Spherical lenses can reach the following accuracy levels according to customer requirements:

    Ultra high precision grade: surface error <0.1μm, surface roughness <0.01μm

    High precision grade: surface error <0.5μm, surface roughness <0.05μm

    Precision grade: surface shape error <1μm, surface roughness <0.1μm

  • Surface defect grade: 60-40, 40-20, 20-10, 10-5. Produced according to customer requirements.

  • Coating: Coating according to customer requirements.

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