REF Silver-Coated Plane Mirrors

Three REF silver-coated flat mirrors are distinguished by complete model, diameter and thickness, with explicit mm units in the source table. C1 and B1 both have a 25.4 mm diameter but are 5 and 3 mm thick respectively; C2 is 50.8 mm in diameter and 8 mm thick. A main-image panel labels two sizes collectively as REF-C1. This issue is preserved while model data follow the individual source options. The panel is not treated as a model-specific engineering drawing or evidence of pack quantity.

Model-specific dimensions

Source SKU text explicitly gives REF-C1 diameter 25.4 mm, thickness 5 mm; REF-C2 diameter 50.8 mm, thickness 8 mm; and REF-B1 diameter 25.4 mm, thickness 3 mm. Units can be recorded, but tolerances and clear aperture are absent. C1 and B1 share a diameter but differ in thickness; they are not merged, and letters are not decoded into material grades.

Main-image labels and source differences

No individual SKU photographs are supplied. The third main image labels the overall panel REF-C1 while arrows identify a 2-inch, 8 mm thick mirror and a 1-inch, 5 mm thick mirror. This illustrates two series sizes; it does not assign the 2-inch/8 mm configuration to C1. Model dimensions follow the source option text, with the mixed panel label retained as a source issue. B1’s 3 mm value comes from the table, not an image measurement.

Silver coating and precision wording

The source title says optical glass, silver-coated flat mirror and high precision, without specifying glass grade, coated-face position, protective layer or numerical precision. Glass and silver coating are retained without changing the claim to protected silver, a specific substrate grade or λ/10. Reflectance, spectra, incidence angle, polarization, surface figure and surface quality require independent data.

Appearance, mounting and supply

Photographs show circular silver-bright faces with substantial pale edges. Two displayed pieces do not establish a two-piece pack. Rear construction, clamping interfaces, clear aperture and mounting drawings are absent, so included holders and universal compatibility are not promised. Power, damage threshold, environment and cleaning conditions are unspecified. The source lists 2–7 days for dispatch; verify current delivery, quantity and accessories.

Selection checklist

Complete model, diameter and thickness

Tolerance, clear aperture, clamping and rear drawing

Glass grade, coated face and reflectance spectrum

Mixed image label, quantity and delivery

To be confirmed

Dimension tolerances, clear aperture and rear construction

Glass grade, protective layer and coated-face position

Numerical precision, reflectance, band and polarization

Damage threshold, cleaning, quantity and accessories