Lens Surfacing
Surface Power
Surface Power? (SP) is our entry-level digital technology. Progressive lenses made with this technology have the progressive surface on the back side of the lens, and a simple curve, typically a sphere, on the front side. The progressive surface is calculated using a pure geometrical method that produces lenses with similar optical performance as conventional progressive lenses, but with the advantages of the digital process, like flexible designs, variable corridor lengths and insets.
Surface Power Benefits
- Comfortable and accurate vision
- Easy to verify the lens power and compare it to the prescription
- Variable inset optimization for each wearer
- Thickness optimization
- Superior vision to conventional lenses
- Available on select designs
Digital Ray Path (DRP)
Digital Ray-Path? (DRP) is the most advanced technology available to make digital lenses. The important difference appears when calculating the back surface of the lens. Instead of using a pure geometrical method, Digital Ray-Path? technology is based on an advanced three-dimensional calculation model that considers the actual position of the lens and the natural movements of the human eye. The result of this innovative calculation method is a progressive lens that is personalized and provides better vision in all zones of the lens.
Digital Ray Path Benefits
- Personalization for any Rx and frame
- Reduced oblique aberration
- Wider visual fields
- Clear vision in all gaze directions
- Variable inset optimization for each wearer
- Thickness optimization
- Available on select designs
