Ophthalmic Optics第 15 / 100 题
Spherical aberration in a lens is best described as what?
a.Color separation of white light
b.Peripheral rays focusing differently than central rays
c.Reflection off both surfaces
d.Distortion from prism
解析
Spherical aberration occurs when light passing through the outer (peripheral) zones of a lens focuses at a different point than light through the center, blurring the image. Aspheric designs reduce this effect.
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