Back Surface Progressives

1
(No Transcript)
2
(No Transcript)
3
Back Surface Progressives
The Advantages of moving the Progression to the
Back
Front Surface Spherical
Front Surface Progression
Back Surface Progression
Traditional Progressive. Front Surface
Progression. Back surface is made with
spherical curves.
Calligraphy Progressive. Back Surface
Progressives. Atoral back surface Rx.
Front surface is spherical.

4
Back Surface Progressives
The Advantages of moving the Progression to the
Back
A. Larger Field of View
With the Progression surface being closer to the
eye Wearer achieves a larger field of view, Up
to 15 wider field of view
Fig 12. Wider Field of View with Calligraphys
Back Surface Progressives
5
Back Surface Progressives
The Advantages of moving the Progression to the
Back
FS PAL
B. Reduced Sway Distortion
MAG SHAPE X POWER FACTOR
FACTOR
Front Surface Curvature
Power Vertex Distance
Calligraphy
With the atoral back-surface PAL design, the
front surface curvature is constant thereby
greatly reducing the SHAPE factor.
Calligraphy Provides significantly smoother
transition from distance to near zones
6
Back Surface Progressives
The Advantages of moving the Progression to the
Back
FRONT SURFACE PAL
B. Reduced Sway Distortion
Calligraphy
Up to 50 less distortion resulting from
changes of power. Achieves more stable vision,
wearer comfort and ease of adaptation.
Calligraphy provides higher constant
magnification and lower dynamic deformation

7
Back Surface Progressives
The Advantages of moving the Progression to the
Back
Rx with 2D CYL
C. Reduced Lateral Distortion
Aspherical BS i.e. - 3.00
Due to perfect elimination of Oblique Astigmatism
by the Atoral design lateral distortions are
reduce by up to 30. A significant factor in
wearer adaptation and comfort.
Aspherical BS i.e. - 5.00
Spherical or Aspheric FS
MATCH
NO COMPROMISE
ATORAL BACK SURFACE ASPHERIC
8
Free-Form Technology
The Technology behind the production of
Calligraphy
Calligraphy is a highly complex surface designed
using wavefront tracing and advanced optimisation
algorithms.
COMBINED BENEFITS
Wavefront Analysis

Atoral Back Surface Aspherics

Back Surface Progression
Fig 16. Wavefront Ray Tracing
Calligraphy
9
A Summary Comparison
10
FUTURE-X Calligraphy
Atoral Back Surface Progressives
Lens Design Atoral Back Surface
Progressive Range SPH -10.00 to 8.00 CYL
-4.00D (Max Compound -8.00D) Adds 1.00 to
4.00 Corridor 13mm and 15mm Diam 55mm to
70mm Material Future-X, 1.50, 1.60, 1.67, 1.50
Transitions, 1.67 Transitions, 1.50
NuPolar Coating Steel HMC Coating UV
Protection 100 UVA, UVB
11
An Ophthalmic Opportunity
Upgrading end-users to better designs
Potential Margins
Retail Situation
Atoral Back-Surface Aspherics
Single Vision Progressives
Front Surface Aspheric
OPTICAL DESIGNS
MASS MARKET
Spherical
Highest
Low
Optical Quality for lenses with Cylinder
12
STEEL COATING
Advance Super Hydrophobic Hard Multi-Coating
The Next
Technological Leap
in Hard Multi-coatings
13
MAKING STEEL
The Components of STEEL HMC
A. Super-hydrophobic Top Coating
B. High Quality Anti-reflective
Layers with Anti-Static properties
C. 10H Higher-Grade Hard Coat
Lens Substrate
14
STEEL PROPERTIES
The Benefits of STEEL HMC
Higher wetting angle due to repulsion of surface
deposits
Normal Hydrophobic Layer
STEEL Super Hydrophobic Layer

• Extra smooth surface
• Easy clean and Non-Smudge
• Surface repels dirt and
• grease so loosely attached
• Lower Friction Coefficient

Easier to Clean
15
STEEL PROPERTIES
The Benefits of STEEL HMC

• Advance AR Multi-coating maximizes light
  transmission whilst eliminating annoying glare

• Surface repels dirt and grease
• EMI Anti-Static coat repels dust

Extreme Clarity
Less Tendency to Get Dirty

• Stronger 10H Grade Hard Coat
• Reduce frequency of cleaning required
• Lower friction coefficient

Better Scratch Resistance