Spherical Lens
We provides five kinds of spheric lens forms, or shapes, that determine the imaging Characteristics of the lenses, they are plano-convex, plano-concave ,Double-convex, Double-concave and Meniscus. Note for Spheric Lens: Other optical glass materials from Schott or Chinese CDGM are also available upon request. Custom-made Spheric Lenses at any size from dlameter 2.0mm to 300mm are available upon request. Typical paraxial focal length tolerance is +2%, better tolerance is available upon request Typical centration is 3 arc minutes, better precision is avallable upon request Besides uncoated, Lenses with Anti-Reflective(AR), High-Retflective(HR), Partial-Reflective(PR) coating are available upon request, Please refer to Part 5 OPTICAL COATING for more information about coating.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | BK7, K9, Fused Silica, SF10, Silicon, CaF2, Sapphire etc. |
| Typical Diameter (Фmm) | 10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8, etc. |
| Diameter Tolerance [General] | +0.0/-0.2 |
| Diameter Tolerance [High Precision] | +0.0/-0.02 |
| Paraxial Focal Length Tolerance | ±2% |
| Centration | <3 arc min |
| Clear Aperture [Small Size] | >80% |
| Clear Aperture [Large Size] | >95% |
| Surface Figure [General；per 25mm@632.8nm] | <1.5λ |
| Surface Figure [High Precision；per 25mm@632.8nm] | <λ/4 |
| IRR [General；@632.8nm] | <λ/4 |
| IRR [High Precision；@632.8nm] | <λ/10 |
| Surface Quality [General] | 60/40 |
| Surface Quality [High Precision] | 10/5 |
| Bevel (face width x 450) | <0.25mm |
| Coating | uncoated, AR, HR, PR Coating, etc. |
Key Features
Datasheet
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Supplier Information
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