Sjl Laser

Sjl Laser is based in China and lists optical glass ball lenses, fused silica ball lenses, sapphire ball lenses, micro ball lenses and low-melting-point glass aspherical lenses on Global Trade Plaza. The optical glass ball lenses are offered in diameters from 0.3 mm to 30 mm with material options that include K-VC89, K-VC80, P-SK57, L-LAH84, N-SF11, N-BK7 and D-ZLAF5. The fused silica ball lenses are described as having high transmittance from 200 nm to 2.2 µm and a low coefficient of thermal expansion. Sapphire ball lenses and micro ball lenses down to 0.3–0.6 mm diameter are also available, with stated capabilities of diameter tolerance within ±0.001 mm and roundness control. The micro ball lenses are noted for batch tolerance below 0.4 µm and roundness below 0.2 µm, and are used in optical communication, precision instruments, medical instruments and imaging. Low-melting-point glass balls are offered for precision molding of aspherical lenses. Buyers can send an enquiry through Global Trade Plaza.