Jung Du Lee — Lens Patent Author | Surface & Stop

Jung Du Lee6 related patents across 6 interactive lens diagrams.
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Samyang Optics Co., Ltd. (6)
Samyang Optics Co., Ltd.(6)KR 10-2017-0073883 A↗2017Assignee: Samyang Optics Co., Ltd.
Inventors: Jong Young Park, Jung Du Lee
Example 1SAMYANG 100mm f/2.8 ED UMC MACRO— 15 ELEMENTS / 12 GROUPS, DESIGN f = 98.04 mm
KR 10-1825708 B1↗2018Assignee: Samyang Optics Co., Ltd.
Inventors: Jae Myung Ryu, Hae Jin Lee, Jung Du Lee
Numerical Example 1SAMYANG AF 50mm f/1.4 FE— 9 ELEMENTS / 8 GROUPS, 50mm f/1.4 MARKETED; 51.0386mm f/1.44 DESIGN
KR 10-1918210 B1↗2018Assignee: Samyang Optics Co., Ltd.
Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee
Numerical Example 3SAMYANG AF 14mm f/2.8 EF— 15 ELEMENTS / 10 GROUPS, DESIGN f = 14.19 mm
KR 10-1933088 B1↗2018Assignee: Samyang Optics Co., Ltd.
Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee
Numerical Example 1SAMYANG AF 14mm f/2.8 FE— 14 ELEMENTS / 10 GROUPS, MARKETED 14mm f/2.8
KR 10-2077265 B1↗2020Assignee: Samyang Optics Co., Ltd.
Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee, Moon-Kyung Kim
Example 3SAMYANG XP 35mm f/1.2— 12 ELEMENTS / 10 GROUPS, 35mm f/1.2 (MARKETED)
WO 2021/246545 A1↗2021Assignee: Samyang Optics Co., Ltd.
Inventors: Jung Du Lee
Embodiment 1SAMYANG AF 18mm f/2.8 FE— 9 elements / 8 groups, f = 18.541 mm patent; 18.548 mm computed