Solution
molded progressive lens semi and finished
Design Feature
① Soft short corridor design
② Very low distortion can be even compared to some normal corridor pal. Max unwanted astigmatism equals to 76-79% of add value.
③Comparatively wide far vision with a 174○ angle of 0.50D Cyl line at FRP
④ Wide & stable reading area
Fitting Diagram
Technical data
|
Area |
Project |
Class PLUS power plot value for add 1.95 |
|
|
Below 0.5D Astigmatism |
Below 1.0D Astigmatism |
||
|
Far Vision Point(+9) |
Angle |
174° |
＞180° |
|
Width |
43.41mm |
Clear |
|
|
Fitting Point(+3) |
Angle |
142° |
178° |
|
Width |
11.25mm |
42.2mm |
|
|
Near Vision Point(-12) |
Width |
6.98mm |
13.05mm |
|
Corridor |
Middle of corridor |
3.6mm |
7.87mm |
|
Max.Unwnted Astigmatism |
MAX.Ast |
Nasal:X1.53dc |
|
|
Coordinate |
Nasal X:-12.0;Y:-5.0 |
||
Visual Benefits
A easy adaption lens with very few application limitations.
Good enough both for driving & reading
Applications
Age 45 plus
A economic common lens used for most of pal wearers
A good choice for those high Add patients who wear pal lens for first time
Suitable for those who have poor eye-ball rotation ability but not satisfied with the distortion of hard design pal
Product data
Available material: 1.56 white/1.56 photochromic/1.56 BRC photochromic
Finished lens power range: -2.00D ~+3.00D
Semi finished blank
|
Base Curve |
Back Curve |
Semi-Finished C T |
Prescription Range |
||||
|
Nominal |
Actual（dpt） |
Radius (mm) |
Actual（dpt） |
Radius (mm) |
Sphere powers |
Cylinders |
|
|
1.50 |
1.48D |
378.378 |
6.60 |
84.848 |
10.0 |
≥-3.00 |
≤-4.00 |
|
3.50 |
3.59D |
155.989 |
6.60 |
84.848 |
7.5 |
-2.75~+2.50 |
≤-4.00 |
|
5.75 |
6.02D |
93.023 |
6.60 |
84.848 |
10.4 |
+2.75~+5.00 |
≤-4.00 |
|
7.75 |
8.19D |
68.376 |
6.60 |
84.848 |
14.3 |
+5.25~+7.50 |
≤-4.00 |
Fitting Information
Fitting Point: +3 mm
Min Fitting Height: 16 mm
Min Frame Height: 24 mm
China patent
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