JP2013190475A5

JP2013190475A5 -

Info

Publication number: JP2013190475A5
Application number: JP2012054629A
Authority: JP
Filing date: 2012-03-12
Publication date: 2015-04-23
Anticipated expiration: 2032-03-12

Description

レンズ鏡筒は、レンズを保持するレンズ保持枠と、前記レンズ保持枠の外側に配置されるとともに第１溝が形成された第１筒部材と、円柱状の第１部分、及び、前記第１部分に対して偏心するとともに前記第１溝にはめ込まれた円柱状の第２部分、を有し、前記第１部分の軸線を中心として前記レンズ保持枠に対して回転可能に取り付けられ、前記軸線に沿った方向に貫通穴が設けられた第１調整部材と、頭部及び軸部を有し、前記貫通穴に挿入され、前記軸部を前記レンズ保持枠に設けられたねじ孔に螺合することにより、前記第１調整部材を前記レンズ保持枠に固定するねじと、を備え、前記頭部は、前記貫通穴の前記第１部分の内径側と接触し、前記第２部分の内径側とは非接触であること、を特徴とする構成とした。The lens barrel includes a lens holding frame that holds a lens, a first cylinder member that is disposed outside the lens holding frame and has a first groove, a columnar first portion, and the first A cylindrical second portion that is eccentric with respect to the portion and fitted in the first groove, and is rotatably attached to the lens holding frame about the axis of the first portion. A first adjustment member having a through hole in a direction along the head, a head and a shaft, and inserted into the through hole, and the shaft is screwed into a screw hole provided in the lens holding frame. A screw for fixing the first adjustment member to the lens holding frame, and the head contacts the inner diameter side of the first portion of the through hole, and the inner diameter side of the second portion. Is a non-contact configuration.
また、光学機器は、上記レンズ鏡筒を備える構成とした。 Further, the optical apparatus is configured to include the lens barrel.

なお、上記構成は、適宜改良してもよく、また、少なくとも一部を他の構成物に代替してもよい。 In addition, the said structure may be improved suitably, and at least one part may substitute for another structure.

Claims

A lens holding frame for holding the lens;
A first cylindrical member disposed outside the lens holding frame and having a first groove formed thereon;
A cylindrical first portion, and a cylindrical second portion that is eccentric with respect to the first portion and fitted in the first groove, and holds the lens around the axis of the first portion A first adjustment member rotatably attached to the frame and provided with a through hole in a direction along the axis;
The first adjustment member is fixed to the lens holding frame by having a head and a shaft portion, being inserted into the through hole, and screwing the shaft portion into a screw hole provided in the lens holding frame. A screw, and
The head is in contact with the inner diameter side of the first portion of the through hole and is not in contact with the inner diameter side of the second portion;
A lens barrel characterized by

The lens barrel according to claim 1,
A second cylindrical member disposed outside the lens holding frame and having a second groove formed thereon;
The first portion of the first adjustment member is fitted in the second groove;
A lens barrel characterized by

The lens barrel according to claim 2 ,
The first groove is a lead groove;
The second groove is a straight groove;
A lens barrel characterized by

The lens barrel according to claim 2 or 3 ,
The first cylinder member and the second cylinder member are disposed concentrically adjacent to each other;
A lens barrel characterized by

The lens barrel according to any one of claims 2 to 4 ,
The second cylinder member is disposed inside the first cylinder member,
The opening diameter of the end portion on the lens holding frame side in the through hole is smaller than the head.
In the through hole, the opening diameter of the portion other than the lens holding frame side end is larger than the head,
The first adjustment member is fixed to the lens holding frame by sandwiching a portion where the through hole of the first adjustment member has the small diameter between the head and the lens holding frame. about,
A lens barrel characterized by

The lens barrel according to any one of claims 2 to 4 ,
The first cylinder member is disposed inside the second cylinder member,
The opening diameter of the end portion on the lens holding frame side in the through hole is smaller than the head.
In the through hole, the opening diameter of the portion other than the lens holding frame side end is larger than the head,
By sandwiching a portion of the first adjustment member in which the through-hole has a small diameter between the inner diameter side of the second portion and the lens holding frame in the head portion, 1 adjustment member is fixed to the lens holding frame;
A lens barrel characterized by

The lens barrel according to any one of claims 2 to 6 ,
The first adjustment member is attached to two of the three locations along the outer periphery of the lens holding frame, and the second adjustment in which a portion that fits into the first groove and the second groove is coaxial at one location That the member is attached,
A lens barrel characterized by

An optical apparatus comprising the lens barrel according to any one of claims 1 to 7 .