Lenses are classified by the curvature of the two optical surfaces premium vector by attaphongw

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blue vector focus glass refraction transparent cutout plastic watch lens surface symmetry look eyeglasses goggles specs symmetrical physics spherical optics arched sharpness spectacles concave convex vault bundled schematic vitreous curvature cross section diopters plano optically optional refractive meniscus contact lens ray of light optical lens biconcave biconvex collecting lens dispersal lens
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blue
vector
focus
glass
refraction
transparent
cutout
plastic
watch
lens
surface
symmetry
look
eyeglasses
goggles
specs
symmetrical
physics
spherical
optics
arched
sharpness
spectacles
concave
convex
vault
bundled
schematic
vitreous
curvature
cross section
diopters
plano
optically
optional
refractive
meniscus
contact lens
ray of light
optical lens
biconcave
biconvex
collecting lens
dispersal lens