Ball lens are excellent for fibre coupling as they have very low spherical aberration, so focus and collimate light accurately. sapphire ball lenses are extremely hard and durable. Ball lenses are used for focusing light into small fibres, and for use as emitters and detectors

Material: sapphire optical glass fused silica
Diameter:1mm to 100mm

Surface quality:10/5 scratch/dig

Flatness;1/2 lambda

Tolerance;+/-0.002mm

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