New answers tagged lens-design
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Here is a patent by Tamron on a quite wideangle lens for cameraphone.
(JP2016256557 JP2018109673A).
https://worldwide.espacenet.com/patent/search/family/062721391/publication/CN108254859A?q=JP2016256557%20&called_by=epo.org
Widest example from patent has FOV of 23.6 degrees which corresponds to about 95 mm in FF terms. Of course, such design is ...
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