concave lens

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  • noun

Synonyms for concave lens

a lens such that a parallel beam of light passing through it is caused to diverge or spread out

References in periodicals archive ?
If you put a concave lens in front, the image would be righted up.
This study used a concave lens like that depicted in Fig.
In general, concave lens surface replication can be improved by suppressing the shrinkage of the molded product during the packing and holding stages.
In Lab B: the air bubble forms a concave space that acts as a concave lens and makes things look smaller.
Canon engineers achieved the high magnification of 15x/18x, as well as the compact optical system length by incorporating four elements in three groups and strategically positioning a concave lens within the objective lens section.