BASIC - STARTER
The starting point for your products portfolio.
BASIC - without the waves effect
Recommended for novice progressive wearers.
The BASIC design boasts an impressive far zone length of 76 mm and a convenient near zone length of 20 mm. With a perfectly balanced width in both far and near zones, it epitomizes the essence of the Middle design
The available corridors lenghts are 6mm, 8mm, 10mm and 12mm.
Experience precise and comfortable correction across a range of visual conditions with our Basic design, featuring an astigmatism-addition ratio ranging from 1.075 to 1.165, calculated based on a 2.00 addition. Enjoy clear and comfortable vision, perfect for those stepping into the world of progressive lenses for the first time.
Opto+ design Specification
- The corridor length calculation starts from the geometrical lens center or the Prism Reference Point (PRP) to the beginning of the Near Reference Point (NRP)
- The Fitting Cross (FC) is set at +4mm from the Prism Reference Point (PRP)
- The Distance Reference Point (DRP) is set at +4mm from the fitting cross
- The Near Reference Point (NRP) is set a -4 mm from the end of the corridor
- The INSET is the distance between the hypothetical vertical line passing through the Fitting Cross (FC) and the hypothetical vertical line passing through the Near Reference Point (NRP)
technical specifications
Far Vision Width: 76 mm
Decentration: 0—5 mm
Near Vision Width: 20 mm
Inset: 2—2.5 mm
Corridor: Lenght 6/8/10/12 mm
Addition: 0.20 to 4.00 dpt
Min. fitting height: 13/16/18/20 mm
Sugg. Min. fitting height: 16/20/22/24 mm