Takumu Yamada — Lens Patent Author | Surface & Stop

Takumu Yamada2 related patents across 2 interactive lens diagrams.
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Sony Group Corporation (2)
Sony Group Corporation(2)WO 2021/199923 A1↗2021Assignee: Sony Group Corporation
Inventors: Takumu Yamada, Dai Matsuoka
Numerical Example 1SONY FE 14mm f/1.8 GM— 14 elements / 11 groups, f = 14.42 mm design
WO 2024/247472 A1↗2024Assignee: Sony Group Corporation
Inventors: Naoki Itoku, Takumu Yamada
Example 2SONY FE 70-200mm f/4 Macro G OSS II— 19 ELEMENTS / 13 AIR-SEPARATED COMPONENTS / 7 FUNCTIONAL GROUPS, DESIGN f = 72.105-192.992 mm