JP 1999-030743 A1999
Assignee: Canon Inc.
Inventors: Makoto Misaka
Makoto Misaka
5 related patents across 8 interactive lens diagrams.
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Canon Inc.(5)
JP H11-211978 A1999
Assignee: Canon Inc.
Inventors: Yasunori Murata, Makoto Misaka
US 6,115,188 A2000
Assignee: Canon Inc.
Inventors: Akihiro Nishio, Hideki Ogawa, Makoto Misaka
Numerical Example 1CANON EF 300mm f/2.8 L IS USM— 15 ACTIVE ELEMENTS / 11 GROUPS, MODELED EFL ≈ 293.600 mmNumerical Example 22CANON EF 600mm f/4 L IS USM— 15 powered elements / 11 groups + filter, Patent f = 585.20 mm; computed EFL ≈ 585.328 mmNumerical Example 24CANON EF 500mm f/4 L IS USM— 15 POWERED ELEMENTS / 11 GROUPS + FILTER, PATENT f = 490.56 mm; ARRAY EFL ≈ 491.36 mmNumerical Example 25CANON EF 400mm f/2.8 L IS USM— 400mm f/2.8 (marketed), Patent f = 392.15 mm, F/2.9
JP 2009-175324 A2009
Assignee: Canon Inc.
Inventors: Makoto Misaka
JP 2009-282554 A2009
Assignee: Canon Inc.
Inventors: Makoto Misaka