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The main points of these lenses are:
Function:
Usage:
Material | Optical Glass, Fused Silica, quartz |
Diameter Tolerance | +0/-0.15 mm |
Thickness Tolerance | +/-0.15 mm |
Cler Aperture | over 90% |
Surface Quality | 80/50~10/5 |
Transmission | above 92% |
Chamfer | 0.1-0.5 mm x 45° |
Focal Length Tolerance | +/-1.5% |
Back Focal Length Tolerance | +/-1.5% |
Coating | available |
Usage | optical system, photographic sysem, Lighting system e.g. laser, camera, projector, magnifier etc. |