 | Lens engraving
Clarlet Business lenses are engraved with permanent symbols which can be used by the optician to reconstruct all major reference and measuring points of the lens. These engravings also indicate the lens type:
 a “B“ is found under the nasal o engraving for clear identification of Clarlet Business
depending on the lens type, a 10 or 15 is found under the temporal o engraving
Lens stamp
Sphere, cylinder and axis are measured inside the measurement marking for near vision (measured power = prescribed power)
If a prismatic power is prescribed, this is added to the value of the  thickness-reducing prism (Clarlet Business 10: 0.5 cm/m, base 270°; Clarlet Business 15: 1.0 cm/m, base 270°) | | .gif) Diese Seite auf Deutsch
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Lens stamp (yellow) and lens engraving
(black) of Clarlet Business
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