JPS6384107U - - Google Patents
Info
- Publication number
- JPS6384107U JPS6384107U JP17859586U JP17859586U JPS6384107U JP S6384107 U JPS6384107 U JP S6384107U JP 17859586 U JP17859586 U JP 17859586U JP 17859586 U JP17859586 U JP 17859586U JP S6384107 U JPS6384107 U JP S6384107U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- zoom ring
- fixed part
- lens barrel
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims 3
Landscapes
- Lens Barrels (AREA)
Description
図面第１図は本考案よりなるカメラのレンズ鏡
筒の構成概要一例を示す縦断面図、第２図はズー
ム環の正面図、第３図はズーム環の一部斜視図を
示している。
１：距離リング、２：合焦レンズ群、３：固定
鏡筒、３ａ：固定鏡筒の溝、３ｂ：溝入口、４，
４′：スラストガタ取り用の突起、５：ズームカ
ム付きズーム環、５ａ：変倍カム機構用のカム突
起、５ｂ：補正カム機構用のカム突起、５ｃ：ズ
ーミング操作棒、６：リレーホルダー、７：変倍
レンズ、８：補正レンズ、９：リレーレンズ群、
１０：変倍レンズ鏡筒、１０ａ：従動子、１０ｂ
：押え板ばね、１１：補正レンズ鏡筒、１１ａ：
従動子、１１ｂ：押え板ばね、１２：ガイドバー
。
FIG. 1 is a vertical sectional view showing an example of the general configuration of a lens barrel of a camera according to the present invention, FIG. 2 is a front view of a zoom ring, and FIG. 3 is a partial perspective view of the zoom ring. 1: Distance ring, 2: Focusing lens group, 3: Fixed lens barrel, 3a: Groove of fixed lens barrel, 3b: Groove entrance, 4,
4': Thrust backlash removal protrusion, 5: Zoom ring with zoom cam, 5a: Cam protrusion for variable magnification cam mechanism, 5b: Cam protrusion for correction cam mechanism, 5c: Zooming operation rod, 6: Relay holder, 7: variable magnification lens, 8: correction lens, 9: relay lens group,
10: variable magnification lens barrel, 10a: follower, 10b
: Holder plate spring, 11: Correction lens barrel, 11a:
Follower, 11b: Presser plate spring, 12: Guide bar.
Claims (1)
し光軸回りに回転可能に組付けられ、かつ筒内部
にズーミングのためのカム機構を形成するカム及
び外部操作部が設けられているズーム環とを備え
たレンズ鏡筒において、上記ズーム環又は上記固
定部のいずれか一方には周方向でありかつ光軸方
向に直交方向の溝を設けると共に、これらズーム
環又は固定部のいずれか他方には上記周方向の溝
に嵌合する少なくとも一つの突起を設け、これら
溝と突起の嵌合により、該ズーム環の光軸回りの
回転は許容するが、軸方向移動は拘束せしめたこ
とを特徴とするレンズ鏡筒。 A zoom ring that includes a fixed part of a camera lens barrel, a cam that is attached to the fixed part so as to be rotatable around the optical axis, and is provided with a cam that forms a cam mechanism for zooming inside the barrel, and an external operation part. In the lens barrel, a groove is provided in either the zoom ring or the fixed part in a circumferential direction and perpendicular to the optical axis direction, and a groove is provided in the other of the zoom ring or the fixed part. is characterized in that at least one protrusion is provided that fits into the circumferential groove, and the engagement between the groove and the protrusion allows rotation of the zoom ring around the optical axis, but restricts axial movement. lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17859586U JPS6384107U (en) | 1986-11-20 | 1986-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17859586U JPS6384107U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384107U true JPS6384107U (en) | 1988-06-02 |
Family
ID=31120876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17859586U Pending JPS6384107U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384107U (en) |
-
1986
- 1986-11-20 JP JP17859586U patent/JPS6384107U/ja active Pending
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