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US 2021/0333544 A1Published application
Optical element and imaging lens
AssigneeKantatsu Co., Ltd.
InventorsTatsuya OOUCHI, Shigeru ENDO
Life of this patent
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Abstract
An object is to provide an optical element and an imaging lens that reproduce clear images by restraining ghosting, flare, and/or similar occurrences caused by unwanted light reflected by the outer circumference surface of an edge of the optical element. An optical element 100 includes an optical effective portion 101 and an edge 102. The edge 102 is located around the optical effective portion 101 and has an outer circumference surface 103. The outer circumference surface 103 includes roughened portions 200. An imaging lens uses the optical element 100.
Claims13
An optical element comprising:
- an optical effective portion;
- and
- an edge located around the optical effective portion and having an outer circumference surface, the outer circumference surface comprising a roughened portion.
Dependencies are inferred from the claim text.