The Half Ball Lens, also known as a hemispherical lens, is a precision optical component designed for efficient light focusing, coupling, and beam shaping applications. Manufactured from high-quality optical glass, this lens features a spherical front surface and a flat rear surface, offering improved alignment stability and enhanced optical performance compared to full ball lenses.

Its unique geometry minimizes spherical aberration when used at the correct working distance, making it ideal for fiber optics, laser systems, LED coupling, and detector applications. The flat surface allows for easy mounting and integration into optical assemblies, ensuring consistent and repeatable performance.

Half ball lenses are widely used in communication systems, medical devices, and industrial optics where compact size and high precision are critical.

High-quality Half Ball Lens (Hemispherical Lens) made from precision optical glass, designed for efficient light coupling, laser applications, and fiber optics. Available in multiple sizes with high surface accuracy and optional coatings.

🔷 Key Features:

• High precision hemispherical design
• Excellent light focusing and coupling efficiency
• Reduced spherical aberration compared to ball lenses
• Flat surface for easy mounting and alignment
• Available in various diameters and materials (e.g., BK7, fused silica)
• Optional AR coatings for enhanced transmission

🔷 Applications:

• Fiber optic coupling
• Laser beam focusing
• Optical sensors and detectors
• LED collimation
• Medical and imaging devices

🔷 Typical Specifications:

• Diameter Range: 1 mm to 50 mm
• Material: Optical Glass (BK7)
• Surface Quality: 60-40 or better
• Diameter Tolerance: ±0.01 mm to ±0.02 mm
• Surface Accuracy: λ/4 or better