Lens Overview
Lenses have many applications ranging from the simple collection of the scanning of laser beams to precise imaging and image transfer. MT-Optics provides Plano Convex Lens, Plano Concave Lens, Double Convex Lens, Double Concave Lens, Achromatic Lens, Cylindrical Lens and Meniscus Lens with a wide range of sizes from dia3.0mm to dia300mm and materials including N-BK7, Fused Silica, N-SF5, Sapphire, CaF2, Silicon, Germanium, etc.
Specifications:
Material:------------------------------------------------N-BK7, H-K9L, Fused Silica, N-SF10, Silicon, Ge,CaF2, etc.
Diameter Tolerance:------------------------------+0.0/-0.15mm (General), +0.0/-0.02mm (High Precision)
Focal Length Tolerance (mm):-----------------+/-2%
Centration:--------------------------------------------<3 arc minutes
Clear Aperture:------------------------------------>80% (Small Size), >95% (Large Size)
Surface Figure (per 25mm@632.8nm)----<1.5λ, (General), <λ/4 (High Precision)
IRR ( @632.8nm)----------------------------------<λ/4 (General), <λ/10 (High Precision)
Surface Quality:-------------------------------------60/40 (General), 10/5 (High Precision)
Protected Bevel:-------------------------------------<0.25mmx45deg
Coating:-----------------------------------------------uncoated, AR, HR, PR Coating, etc.
| Lenses | Material | Illustration |
| Plano Convex Lens | BK7 Fused Silica CaF2 or Upon request |
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| Plano Concave Lens | BK7 Fused Silica CaF2 or Upon request |
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| Double Convex Lens | BK7 Fused Silica CaF2 or Upon request |
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| Double Concave Lens | BK7 Fused Silica CaF2 or Upon request |
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| Achromatic Lens |
depended on the design |
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| Cylindrical Lens | BK7 Fused Silica CaF2 or Upon request |
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