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Half Ball Lenses

Half Ball Lens can be machined by milling, rough grinding, fine grinding, grinding and polishing precision processing technology, which can meet the requirements of optical quality. Optical aspherical surface shape accuracy ≤0.5 micron, surface roughness Ra≤0.05 micron.

half ball lens

Specifications of Half Ball Lenses

Half Ball Lenses product parameter table
ProjectIndicator requirements
1.MaterialUsing optical quartz, optical glass and other materials
2. DiameterOD≤300mm
3. Center thicknessAccording to drawing requirements
4. Effective focal lengthAccording to drawing requirements
5. Working distanceAccording to drawing requirements
6. Design wavelength430~633nm, 630~780nm, 1550~1620nm
7.CoatingAR antireflection coating R<0.2% @λnm
8. EccentricityAccording to drawing requirements
9. Effective apertureED>80% aspheric area
10. Surface shapehigh precision Rt≤0.5μm, precision Rt≤1μm
11.Surface quality60-40, 40-20, 20-10、10-5

Features of Half Ball Lenses

Features of Half Ball Lenses
  • One-stop customized production: Solar Valley processes various plano-convex, biconvex, and convex-concave structure Half Ball Lenses. The lens shape can be produced according to customer requirements

  • Material: Using optical quartz, optical glass and other materials

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

    Product indicators:

    1. Maximum external dimension of hemispherical lens: OD≤φ300mm

    2. Maximum external dimension of square hemisphere lens: ≤210×210mm

    3. Half Ball lens can achieve the following accuracy levels according to customer requirements:

    High precision grade: surface shape 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 According to customer requirements.

  • Coating: coating according to customer requirements.

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