[問題] 請教光學一問題!
An eyepiece is made of two thin lenses each of +20mm focal length
,separated by distance of 16 mm
a. Where must a small object be positioned so that light from the object
is rendered parallel by the combination?
b.does the eye see an image erect relative to the object ?
is it magnified? Use a ray digram to answer these questions by inspection.
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