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Half ball lens

透镜
August 01, 2020
Category Connection: διπλός κυρτός φακός
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A hemispherical lens has a very short focal length,but also a very large aberration.
So it is often used for energy convergence, not for imaging systems.
Tags:
#οπτικός φακός συνήθειας #διπλός κυρτός καθρέφτης #δύο κυρτοί φακοί
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