converging lens

noun

Definition of converging lens 

: a lens that causes parallel rays (as of light) to come to a focus

Illustration of converging lens

Illustration of converging lens

converging lens: S light source, L lens, F focal point

First Known Use of converging lens

1860, in the meaning defined above

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The first known use of converging lens was in 1860

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one that holds something together

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