Item | Optical bi convex and bi concave lens |
Material | Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass |
Diameter Tolerance | +0/-0.2 mm |
Thickness Tolerance | +/-0.2 mm |
Processed | by grinding, polishing |
Surface Quality | 80/50,60/40 |
Material Quality | no scratches and air bubble |
Transmission | above 90% |
Chamfer | 0.1-0.3 mm x 45 degree |
Surface Coating | Available |
Usage | Photography, Lighting system, Electronic apparatus |