Spherical Lens Elements |
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Well-founded with experienced engineers armed with advanced production equipment and measurement devices, Tamron produces a vast array of elements from diversified glass materials in different forms: plano-convex, bi-convex, convex meniscus, plano-concave, bi-concave, and concave meniscus. Diameters range from as small as 3.5mm up to as large as 200mm. |
Convex Elements | Plano-Convex, Bi-Convex, Meniscus |
Concave Elements | Plano-Convex, Bi-Convex, Meni |
External Diameter | o3.5 - o200mm |
Curvature | R1.5mm - ∞ |
Optical glass, Silica glass, Si, Ge
Common Grade | igh Grade | |
Newton Rings | 2 - 5 fringes | 1 - 2 fringes |
Astigmatism | 2 - 5 fringes | 0.2 - 0.4 lines |
Diameter Tolerance | ± 0.02mm | ± 0.005mm |
Angular Deviation to Axis | < 1 min | < 30sec. |
Thickness at Center | ± 0.03 - ± 0.05mm | ± 0.01mm |