Optical Mirror
Mirror is a reflecting surface that forms an image of an object when light rays coming from that object fall upon it. Usually mirrors are made of plate glass, one side of which is coated with metal or some special preparation to serve as a reflecting surface. The junction of this reflecting surface and the plate glass is called the mirror line. Highly polished metal and other materials serve also as mirrors, fused silica is used for applications that require high precision because of its very low thermal expansion. Accuray offers dielectric coated mirrors and metal coated mirrors which are made of substrate such as Bk7, K9, Fused Silica, CaF2, Sapphire and so on. Note for Mirror: Other optical glass or optical crystals of Mirrors are available. Custom-made Mirrors at any size from diameter 2mm to diameter 300mm and with shape of quadrate, triangular or other polygonal are available upon request. Thickness from 1mm to 20mm are available upon request.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | N-BK7,H-K9L,Fused Silica, Sapphire etc. |
| Typical Diameter (Φmm) | 10.0, 12.7, 15.0, 20.0, 25.4, 30.0 |
| Typical Thickness | 2.0, 3.0, 6.0,6.35 |
| Diameter Tolerance [General] | +0.0/-0.1 |
| Diameter Tolerance [High Precision] | +0.0/-0.05 |
| Thickness Tolerance [General] | ±0.1 mm |
| Thickness Tolerance [High Precision] | ±0.01 mm |
| Clear Aperture [Small Size] | >80% |
| Clear Aperture [Large Size] | >90% |
| Flatness [General；per 25mm@633nm] | λ |
| Flatness [High Precision；per 25mm@633nm] | λ/8 |
| Incidence Angle | 0°or45° |
| Parallelism [General] | 3 min. |
| Parallelism [High Precision] | 3 sec. |
| Surface Quality [General] | 60/40 |
| Surface Quality [High Precision] | 10/5 |
| Bevel (face width x 450) | <0.25mm |
| Coating | Dielectric coated AR,HR,PR or mirrors and metal coated Al, Ag, Au |
Datasheet
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Supplier Information
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