China Optical Lens Achromatic Cylindrical Lens Double Concave Lens Fiber End Cap for Medical and Industrial Use, Find details about China Endoscope, Glass Lens from Optical Lens Achromatic Cylindrical Lens Double Concave Lens Fiber End Cap for Medical and Industrial Use
Attribute | Commercial | High Precision |
Typical Material | BK7 | BK7 , Fused Silica |
Typical Dimension X*Y (mm) | 10*10 | 10 * 30 |
Diameter Tolerance (mm) | +0.00/-0.2 | +0.00/-0.2 |
Focus Length Tolerance(mm) | Typical +/-2%@633nm | Typical +/-2%@633nm |
Centration ( arc min) | Typical < 3 | Typical < 3 |
Surface Figure X (per 25mm@632.8nm) | 1 /2 | 1/4 |
Surface Figure Y(per 25mm@632.8nm) | 2λ | λ |
Surface Quality (scatch/dig) | 60-40 | 10-5 |
Bevel (face width * 45° mm) | 0.2--0.5 | 0.05-0.2 |
coating | wavelength:AR: R≤0.25% per surface broadband AR R≤0.5% per surface | As requested |