JPS6320115U - - Google Patents
Info
- Publication number
- JPS6320115U JPS6320115U JP11179686U JP11179686U JPS6320115U JP S6320115 U JPS6320115 U JP S6320115U JP 11179686 U JP11179686 U JP 11179686U JP 11179686 U JP11179686 U JP 11179686U JP S6320115 U JPS6320115 U JP S6320115U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- gear
- sliding
- focus
- lens
- 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 2
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案になるズームレンズの焦点調節
機構の一実施例を示す縦断面図、第２図は焦点調
節機構のカム機構の分解斜視図である。
１……ズームレンズ、３ａ，１３ａ……内歯、
３……フオーカスリング、１１……摺動鏡筒、１
２……ピン、１３……回動鏡筒、１３ｄ，１４，
１６，１７……ギア、１８……連結シヤフト、Ｌ
１……前玉レンズ群、Ｌ５……後玉レンズ群。
FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a focus adjustment mechanism for a zoom lens according to the present invention, and FIG. 2 is an exploded perspective view of a cam mechanism of the focus adjustment mechanism. 1...Zoom lens, 3a, 13a...Internal teeth,
3...Focus ring, 11...Sliding lens barrel, 1
2... Pin, 13... Rotating lens barrel, 13d, 14,
16, 17...Gear, 18...Connection shaft, L
1 ...Front lens group, L5 ...Rear lens group.
Claims (1)
体鏡筒上を円周方向に回動自在に装着したフオー
カスリングと、後方に配設した後玉レンズ群を装
着し、光軸上を前後方向に摺動自在とした摺動鏡
筒と、前記フオーカスリングの回動により前記摺
動鏡筒を摺動させ、前記後玉レンズ群を光軸上の
前後方向に移動させるようにする連動機構とから
なることを特徴とするズームレンズの焦点調節機
構。 (2) 連動機構は、前記フオーカスリングの内面
に刻設された内歯と噛合する第１のギアと、前記
摺動鏡筒に植設したピンを傾斜カム溝に嵌入させ
、この摺動鏡筒を光軸上の前後方向に摺動させる
ための回動鏡筒と、この回動鏡筒の内面に刻設さ
れた内歯と噛合する第２のギアと、前記第１のギ
アと前記第２のギアとを連結する連結シヤフトと
からなる実用新案登録請求の範囲第１項記載のズ
ームレンズの焦点調節機構。[Scope of Claim for Utility Model Registration] (1) A focus ring that is rotatably mounted on the main body lens barrel in the circumferential direction in close proximity to the front lens group disposed at the front, and A sliding lens barrel is equipped with a ball lens group and is slidable back and forth on the optical axis, and the sliding lens barrel is slid by the rotation of the focus ring, and the rear ball lens group is 1. A focus adjustment mechanism for a zoom lens, comprising an interlocking mechanism for moving the focus in a longitudinal direction on an axis. (2) The interlocking mechanism includes a first gear that meshes with internal teeth carved on the inner surface of the focus ring, and a pin implanted in the sliding lens barrel that is fitted into an inclined cam groove. a rotating lens barrel for sliding the lens barrel in the front-rear direction on the optical axis; a second gear that meshes with internal teeth carved on the inner surface of the rotating lens barrel; and the first gear. The focus adjustment mechanism for a zoom lens according to claim 1, comprising a connecting shaft that connects the second gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11179686U JPS6320115U (en) | 1986-07-21 | 1986-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11179686U JPS6320115U (en) | 1986-07-21 | 1986-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6320115U true JPS6320115U (en) | 1988-02-09 |
Family
ID=30992056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11179686U Pending JPS6320115U (en) | 1986-07-21 | 1986-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0268478A (en) * | 1988-09-02 | 1990-03-07 | Pioneer Electron Corp | Device for drying original plate of optical disk by heating |
-
1986
- 1986-07-21 JP JP11179686U patent/JPS6320115U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0268478A (en) * | 1988-09-02 | 1990-03-07 | Pioneer Electron Corp | Device for drying original plate of optical disk by heating |
| JPH0749911B2 (en) * | 1988-09-02 | 1995-05-31 | パイオニア株式会社 | Device for heating and drying optical disc masters |
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