Hiroshi Koizumi — Lens Patent Author | Surface & Stop

Hiroshi Koizumi2 related patents across 2 interactive lens diagrams.
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Sony Corporation (2)
Sony Corporation(2)US 2015/0085165 A1↗2015Assignee: Sony Corporation
Inventors: Masaki Maruyama, Masaharu Hosoi, Hiroshi Koizumi
Numerical Example 3SONY VARIO-TESSAR T* FE 24-70mm f/4 ZA OSS— 12 ELEMENTS / 10 GROUPS, DESIGN f = 24.72-67.90 mm
US 10,191,254 B2↗2019Assignee: Sony Corporation
Inventors: Kouji Katou, Kota Omiya, Hiroshi Koizumi, Naoki Miyagawa
Numerical Example 10SONY FE 28mm f/2— 9 elements / 8 groups, f = 28.23 mm patent design