LENS UNIT

To provide a lens barrel and a lens unit having improved versatility.SOLUTION: A first accommodation part communicating with a first opening and accommodating a first lens group 3 is formed inside a lens barrel 2. A second accommodation part communicating with a second opening and accommodating a se...

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Bibliographic Details
Main Authors SANADA TAKASHI, OSADA AKINORI
Format Patent
LanguageEnglish
Japanese
Published 18.06.2024
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:To provide a lens barrel and a lens unit having improved versatility.SOLUTION: A first accommodation part communicating with a first opening and accommodating a first lens group 3 is formed inside a lens barrel 2. A second accommodation part communicating with a second opening and accommodating a second lens group 4 is formed inside the lens barrel 2. The inner diameter of the second accommodation part from a communication position where the first accommodation part and the second accommodation part communicate with each other to an accommodation position of the second lens group 4 separated in an optical axis direction is the same as the diameter of the second lens group 4, and the second lens group 4 is accommodated in the second accommodation part movably in the optical axis direction.SELECTED DRAWING: Figure 2A 【課題】汎用性を向上させた鏡筒及びレンズユニットを提供する。【解決手段】鏡筒２の内部には、第１開口に連通し、第１レンズ群３が収容される第１収容部が形成されている。また、鏡筒２の内部には、第２開口に連通し、第２レンズ群４が収容される第２収容部が形成されている。そして、第１収容部と第２収容部とが連通する連通位置から光軸方向において離れた第２レンズ群４の収容位置までの第２収容部の内径は第２レンズ群４の直径と同一であり、第２レンズ群４を第２収容部内で光軸方向に移動自在に収容する。【選択図】図２Ａ
Bibliography:Application Number: JP20220195110