CPC G02B 13/0045 (2013.01) [G02B 7/021 (2013.01); G02B 7/026 (2013.01); G02B 9/60 (2013.01); H04N 5/2254 (2013.01)] | 8 Claims |
1. An imaging lens comprising: a lens provided with an effective optical surface and an edge region formed surrounding the effective optical surface; and a lens barrel configured to accommodate and hold the lens, wherein
the lens has the edge region with an outline formed in a regular polygonal shape,
the lens barrel has an inner circumferential surface with at least one linear portion formed in a position to accommodate the lens, the at least one linear portion corresponding to at least one linear portion formed in an outline of the lens,
the lens barrel has an outline with a linear portion formed parallel to the linear portion formed in the inner circumferential surface of the lens barrel;
the imaging lens comprises a plurality of lenses arranged from an object side to an image side along an optical axis and
of the plurality of lenses, at least the two lenses disposed furthest on the object side have respective outlines formed in a regular polygonal shape with the same number of vertices and disposed in the same phase on the optical axis as a central axis of rotation.
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