Page 222 - PowerPoint 演示文稿

212 Ophthalmic Lenses
Electromagnetic spectrum 64 laminated glasses 177
Enhanced near vision lens 206 special heat toughened safety
Essilor’s PAL ID 153 lenses 180
Evolution of progressive addition lens plastics 180
158 cellulose acetate 181
CR 180
39
F polycarbonate 180
wire gauze 182
Factors affecting photochromatism 75 Limitation of conventional progressive
Field of clear vision 207 addition lenses 151
Filter lenses 67 compromised optics 152
Focal power 5 differing magnification throughout
Fresnel prism 48 lens 151
difficult to check with focimeters
152
G
no control over inset of near portion
Generating progressive power surface 152
154 restricted visual field 152
Glass material 8
colorants 9 M
crown 9
high-index glasses 10 Magnification 119
photochromic glasses 10 Marginal astigmatism 58
oxides 9 ocular astigmatic aberration 59
refiners 9 clinical application 60
influencing factor 60
Measuring aspheric surface 96
H
Mechanical factors 20
Horizontal inclination 195 Methods of lens tinting 71
integral tints 72
I surface tinting/coating 73
dye tinting 74
Ideal frame selection for progressive mirror coating 73
addition lens 166 Minus cylinder 19
shape of frames 166 Mirror coating in sports lens 203
size/depth of frame 167 Multilayer anti-reflection coating 88
Image jump 112
Interval of strum 36 N
Invisible bifocals 123
Notation for cylinder lenses 34
L
O
Laws of reflection 1
Laws of refraction 2 Ophthalmic lens design 18
Lens aberrations 54 Optical description of progressive
Lens materials 176 addition lens 141
glasses 177 contour plots 142
chemically toughened glasses grid plot 145
179 isocylinder contour plots 143
heat toughened glasses 178 isosphere contour plots 143