Dayong Li

7 related patents across 7 interactive lens diagrams.

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Anhui Changgeng Optics Technology Co., Ltd.(3)

CN 110161666 A2019

Assignee: Anhui Changgeng Optics Technology Co., Ltd.

Inventors: Dayong Li

LAOWA 65mm f/2.8 2× Ultra Macro APO— 14 ELEMENTS / 10 GROUPS, f ≈ 66.0 mm (design) / 65 mm (marketed)

CN 210573001 U2020

Assignee: Anhui Changgeng Optics Technology Co., Ltd.

Inventors: Dayong Li

LAOWA 24mm f/14 2× Macro Probe— 27 ELEMENTS / 19 GROUPS, f ≈ 23.7 mm

CN 116520542 A2023

Assignee: Anhui Changgeng Optics Technology Co., Ltd.

Inventors: Dayong Li

LAOWA 58mm f/2.8 2× Ultra-Macro APO— 14 ELEMENTS / 11 GROUPS, f ≈ 59.2 mm

Tamron Co., Ltd.(3)

US 8,049,968 B22011

Assignee: Tamron Co., Ltd.

Inventors: Hisayuki Yamanaka, Dayong Li

SONY 70-400mm f/4-5.6 G SSM II— 18 ELEMENTS / 12 GROUPS, PATENT 72.06-388.09mm

US 8,810,918 B22014

Assignee: Tamron Co., Ltd.

Inventors: Dayong Li

TAMRON SP 24-70mm f/2.8 Di VC USD— 17 physical elements / 12 groups (18 modeled media), 24.7-67.799 mm design / 24-70 mm marketed

JP 2017-116646 A2017

Assignee: Tamron Co., Ltd.

Inventors: Dayong Li

TAMRON 18-400mm f/3.5-6.3 Di II VC HLD— 16 ELEMENTS / 11 GROUPS, 18-400mm MARKETING / 18.5105-389.00mm PATENT

No named assignee or applicant(1)

US 2008/0212200 A12008

Inventors: Dayong Li, Akio Arakawa

TAMRON SP AF 70-200mm f/2.8 Di LD [IF] MACRO— 18 ELEMENTS / 13 GROUPS, 70-200mm f/2.8 (MARKETING)

Dayong Li

Anhui Changgeng Optics Technology Co., Ltd.(3)

CN 110161666 A↗2019

CN 210573001 U↗2020

CN 116520542 A↗2023

Tamron Co., Ltd.(3)

US 8,049,968 B2↗2011

US 8,810,918 B2↗2014

JP 2017-116646 A↗2017

No named assignee or applicant(1)

US 2008/0212200 A1↗2008

CN 110161666 A2019

CN 210573001 U2020

CN 116520542 A2023

US 8,049,968 B22011

US 8,810,918 B22014

JP 2017-116646 A2017

US 2008/0212200 A12008