Transcript American Optical History

Highlights of Topics / Course Structure (no Quizzes !!!)
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Personal Intro – Dick Whitney
Index of Refraction, Abbe Values
Surface Curvature, Lens Power (Back Vertex Power)
The RX (prescription) : minus vs. plus cyl notations, axis
angle, etc.
Lensometer / Humphrey Focimeter
Ophthalmic lens Styles
Aspheric optics and off-axis performance
Measuring Add Power
Standards and their practical applications
AO Lens Design Background
Molding stress (Oracle) and its effect on final product
Light
Index of Refraction
Material
Index
(Nd)
Hard Resin
1.499
Transitions
1.501
1.5 Glass White
1.523
1.5 Glass PGX/PBX
1.523
High Index "55"
1.537
Polycarbonate
1.586
High Index "16"
1.600
1.6 Glass White
1.601
1.6 Glass PGX/PBX
1.601
1.7 Glass White**
1.701
1.8 Glass White**
1.8??
AO “V –block” refractometer
Material
Index
Abbe
(Nd)
Hard Resin
1.499
58
Transitions
1.501
56
1.5 Glass White
1.523
58
1.5 Glass PGX/PBX
1.523
57
High Index "55"
1.537
47
Polycarbonate
1.586
30
High Index "16"
1.600
42
1.6 Glass White
1.601
41
1.6 Glass PGX/PBX
1.601
42
1.7 Glass White**
1.701
40
1.8 Glass White**
1.8??
40
Toric lenses
Understanding Curves
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Diopters 153
AO Master 1.53 Curve Set
Glass Exec Lens Mfg (1952-2005)
AO’s Progressive lenses
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Dr. John Winthrop’s achievements in
Proressive Lens design are world renound
Lens
Date Introduced
Truvision®
1981
Truvision OMNI®
1988
Truvision Technica®
1990
AO Pro® 15
1992
AO Pro® 16
1994
AO Force® 55
1996
AO Compact®
1998
AO b' Active™
2000
AO Pro Easy™
2002
The RX (prescription)
AO Lensometer - 1919
AO Lensometer Collection
The AO Lensometer
Add Power Measurement
BSI and DIN std Add Power
AO & Ophthalmic Optics
Dr. Glancy PAL – 1920 (AO)
AO Ophthalmic Lens “Firsts”
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Tillyer Corrected Curve Series
Minus Toric Series
Implementation of Franklin Style
Executive Bifocal
Plastic Photochromic Lens
Permalite Abrasion Resistant coating
AO Compact Small Frame PAL