Imaging lens and electronic device

An imaging lens includes a light blocking sheet. The light blocking sheet includes an object-side surface, an image-side surface, an inner ring surface, a plurality of tapered light blocking structures, and a nanostructure layer. The object-side surface is in perpendicular with and surrounds an opti...

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Bibliographic Details
Main Author TUNG, WEI
Format Patent
LanguageChinese
English
Published 16.01.2024
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An imaging lens includes a light blocking sheet. The light blocking sheet includes an object-side surface, an image-side surface, an inner ring surface, a plurality of tapered light blocking structures, and a nanostructure layer. The object-side surface is in perpendicular with and surrounds an optical axis. The image-side surface is disposed opposite to the object-side surface, and the image-side surface is located closer to an image side than the object-side surface. The inner ring surface is connected to the object-side surface and the image-side surface, and the inner ring surface surrounds the optical axis to define a light passage opening. The tapered light blocking structures are disposed on the inner ring surface and taper off towards the optical axis, and the tapered light blocking structures are disposed periodically surrounding the optical axis. When viewing along the optical axis, a contour of each tapered light blocking structure has a curved part. The curved part forms a curved surface on the in
Bibliography:Application Number: TW202312132757