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Mirrors0 pages
Mirrors
Mirrors can also be divided into two kinds: Dielectric HR Coating
and metal HR Coating. A character of the HR coating-mirrors is that
the reflectivity is very high in a special wave band . The dielectric
HR coating is made with lots of layers whose material is insulating
medium The polarization of this kind of mirror can be very small
and the reflectivity can be very high . The metal HR coating is made
with metal such gold or silver or Aluminum . The surface of this
kind of mirror coated with metal takes on a special color.
Attribute | Specification |
Material | BK7, Fused Silica, etc. |
Typical Diameter (Omm) | >2.0mm |
Diameter Tolerance (mm) | ±0.02mm |
Typical Thickness (mm) | >0.1mm |
Thickness Tolerance (mm) | ±0.01 mm |
Clear Aperture | >90% |
Flatness (per25mm@633nm) | |
Incidence Angle | 0° or 45° |
Surface Quality | |
Parallelism | 3 sec |
Bevel (face width x 450) | <0.25mm |
