Half Ball Lenses

Name: Half Ball Lenses
Brand: Shenzhen Solar Valley Scitech Development Co., Ltd.

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.

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Specifications of Half Ball Lenses

Half Ball Lenses product parameter table
Project	Indicator requirements
1.Material	Using optical quartz, optical glass and other materials
2. Diameter	OD≤300mm
3. Center thickness	According to drawing requirements
4. Effective focal length	According to drawing requirements
5. Working distance	According to drawing requirements
6. Design wavelength	430～633nm, 630～780nm, 1550～1620nm
7.Coating	AR antireflection coating R＜0.2% @λnm
8. Eccentricity	According to drawing requirements
9. Effective aperture	ED＞80% aspheric area
10. Surface shape	high precision Rt≤0.5μm, precision Rt≤1μm
11.Surface quality	60-40, 40-20, 20-10、10-5

Difference Between a Half Ball Lens and a Ball Lens

Half ball lens, as an essentially hemispherical version of ball lenses, can be interchanged with full ball lenses when a more compact design is required due to physical constraints. Half ball lens share similar optical properties, but the choice between a ball lens and a half ball lens often depends on the specific spatial requirements of the application.

Ball lenses are versatile optical components used to improve signal coupling between fibers, emitters, and detectors, and are also employed in endoscopy, bar code scanning, and sensor applications. They are manufactured from a single substrate of glass and can focus or collimate light depending on the geometry of the input source.

Features of Half Ball Lenses

One-stop customized production: Solar Valley processes various fiber ball lens, 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.