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Definitions for "Optical center"
Keywords:  refracting, unrefracted, thickest, thinnest, nodal
Related Terms: Diverging lens, Converging lens, Astigmatism, Spherical aberration, Decentration, Myopia, Optical axis, Toric lens, Vergence, Near point, Hyperopia, Concave lens, Aberration, Focal point, Convex lens, Distortion, Aspheric lens, Lens, Fish-eye lens, Nearsightedness, Bifocal lenses, Crystalline lens, Trifocal, Aspherical lens, Hypermetropia, Emmetropia, Divergence, Focal plane, Farsightedness, Bifocal, Trifocal lens, Divergence, Trifocal lenses, Progressive lens, Refractive error, Aspheric, Monovision, Refractive errors, Focus, Pupil, Ametropia, Pincushion distortion, Nearsighted, Legal blindness, Accommodation, Bifocals, Plano, Progressive lenses, Interpupillary distance
The spot on the eyeglass lens where light passes through without bending (refracting). This point is normally placed in front of the pupil.
lenscrafters.com
The spot that the eye sees when it first encounters a page.
ccsn.edu
The point on the axis of a lens that is the image of the nodal points. Rays through the optical center emerge parallel to entering rays.
marktechopto.com
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