Changchun Realpoo Photoelectric Co.,Ltd.

Ball Lens & Half Ball Lens
Precision Light Coupling & Beam Shaping for Optical Systems

What Is a Ball Lens/Half Ball Lens?
A ball lens is a spherical optical lens used to improve light coupling efficiency, collimate or focus beams, and enhance signal collection in compact optical systems.
A half ball lens (hemispherical lens) provides similar optical performance with easier mounting and alignment in some assemblies.

Materials: Optical Glass / Fused Silica / Sapphire (custom)
Customization: Diameter • Tolerance • Coating • High Precision Polishing

Material & Coating Options
Material Options:
Optical Glass: cost-effective, general optical systems
Fused Silica: high transmission, laser-grade stability
Sapphire: extreme hardness for harsh environments

Coating Options:
AR coating (single wavelength): minimum reflection at your target nm
BBAR: broadband wavelength support
Uncoated: budget solutions (higher reflection)
Typical coating targets: low reflection, stable transmission, wavelength-specific optimization.

Why Choose Ball Lens / Half Ball Lens?
High coupling efficiency in compact space
Wide acceptance angle for collection optics
Simple structure & high stability
Cost-effective for mass production
Supports miniaturized optical modules