Title:
レンズユニット
Document Type and Number:
Japanese Patent JP7245686
Kind Code:
B2
Abstract:
To provide a lens unit that has good imaging characteristics and is easily manufactured.SOLUTION: The force against a cemented lens L60 in an optical axis A direction is transmitted to a placing part 12 via an object side convex part 12B, and is further transmitted to an image side convex part 12D immediately below it. A protrusion L50B, a step part L4B (L50A), L3B (L4A), L2B (L3A), and an elastic member 40 are each within the range of X. Thus, the force applied when the fifth lens body L50 and a component closer to an object side than the fifth lens body are mounted is concentrated on an area (load area X) where an object side convex part 12B and an image side convex part 12D overlap so that concentration of the force on another place is suppressed. Therefore, when a lens unit is manufactured, the occurrence of deformation in the lens barrel 10 is suppressed.SELECTED DRAWING: Figure 7
Inventors:
Tadashi Komiyama
Toshio Shiratori
Yosuke Kanzaki
Toshio Shiratori
Yosuke Kanzaki
Application Number:
JP2019052251A
Publication Date:
March 24, 2023
Filing Date:
March 20, 2019
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
G02B7/02; G03B11/00; G03B30/00
Domestic Patent References:
| JP2019008201A | ||||
| JP2015118155A | ||||
| JP2007079155A | ||||
| JP2007163657A | ||||
| JP2015011078A | ||||
| JP2002277738A | ||||
| JP2015175918A | ||||
| JP2011039443A | ||||
| JP2018054922A |
Foreign References:
| US20180088297 | ||||
| CN107884901A |
Attorney, Agent or Firm:
Jo Hori
Yukihiko Maejima
Murakami Daiyu
Yukihiko Maejima
Murakami Daiyu