Refraction by a concave lens. Diagram showing the refraction of light beams through a biconcave lens (concave on both sides). Light changes direction, or is refracted, when it meets a different transparent medium such as a lens. A biconcave lens causes light beams to diverge. It is used to correct myopia (short-sightedness), a condition in which light is focused before it reaches the retina.
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Creative#:
TOP26152693
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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N/A
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No
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