JPS6233016U - - Google Patents
Info
- Publication number
- JPS6233016U JPS6233016U JP12480085U JP12480085U JPS6233016U JP S6233016 U JPS6233016 U JP S6233016U JP 12480085 U JP12480085 U JP 12480085U JP 12480085 U JP12480085 U JP 12480085U JP S6233016 U JPS6233016 U JP S6233016U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- lens frame
- lens
- zoom
- fixed
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は、第２図に示すズームレンズ鏡筒の要
部を分解して示した斜視図、第２図は、本考案の
一実施例を示すズームレンズ鏡筒の断面図である
。
１……固定枠、１ｂ……カム溝（第２のカム溝
）、２……操作枠、３……変倍系レンズ群保持枠
（第１のレンズ枠）、３ａ……凸部、４……補正
系レンズ群保持枠（第２のレンズ枠）、４ａ……
カム溝（第１のカム溝）、４ｂ……切欠溝（切欠
部）、５……ピン（第１のピン）、６……ピン（
第２のピン）。
FIG. 1 is an exploded perspective view of essential parts of the zoom lens barrel shown in FIG. 2, and FIG. 2 is a sectional view of the zoom lens barrel showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Fixed frame, 1b... Cam groove (second cam groove), 2... Operation frame, 3... Variable power lens group holding frame (first lens frame), 3a... Convex portion, 4 ...Correction system lens group holding frame (second lens frame), 4a...
Cam groove (first cam groove), 4b... Notch groove (notch part), 5... Pin (first pin), 6... Pin (
second pin).
Claims (1)
ズ枠を固定枠に内嵌させ、固定枠に外嵌した操作
枠によつて第１のレンズ枠および第２のレンズ枠
を光軸方向にそれぞれ適宜量移動させてズーム操
作を行なうようにしたズームレンズ鏡筒において
、 上記第１のレンズ枠に固設されていて、上記操
作枠のズーム操作により光軸方向へ進退する第１
のピンと、 上記第２のレンズ枠に光軸方向に対し傾斜して
穿設された上記第１のピンが嵌入する第１のカム
溝と、 この第１のカム溝の傾斜角と略等しい傾斜角で
上記第２のレンズ枠に形成された複数の切欠部と
、 上記第１のレンズ枠の外周側に形成されていて
、上記複数の切欠部を貫通して上記第２のレンズ
枠の外周側へ突出し上記固定枠の内周面と摺接す
る複数の凸部と、 上記第２のレンズ枠と固定枠との間に設けられ
た第２のカムピンと第２のカム溝とからなるカム
連結機構と、 を具備してなるズームレンズ鏡筒。[Claims for Utility Model Registration] A second lens frame located on the outer circumferential side of the first lens frame is fitted inside a fixed frame, and an operation frame fitted outside the fixed frame allows the first lens frame and the first lens frame to In a zoom lens barrel in which a zoom operation is performed by moving the second lens frame by an appropriate amount in the optical axis direction, the zoom lens barrel is fixed to the first lens frame, and the zoom operation of the operation frame moves the optical axis. The first to advance and retreat in the direction
a first cam groove into which the first pin is inserted, which is bored in the second lens frame at an angle with respect to the optical axis direction; and an inclination approximately equal to the inclination angle of the first cam groove. a plurality of notches formed in the second lens frame at a corner; and a plurality of cutouts formed on the outer circumferential side of the first lens frame, passing through the plurality of cutouts to the outer circumference of the second lens frame. A cam connection consisting of a plurality of convex portions that protrude to the side and make sliding contact with the inner peripheral surface of the fixed frame, and a second cam pin and a second cam groove provided between the second lens frame and the fixed frame. A zoom lens barrel comprising a mechanism and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12480085U JPS6233016U (en) | 1985-08-14 | 1985-08-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12480085U JPS6233016U (en) | 1985-08-14 | 1985-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6233016U true JPS6233016U (en) | 1987-02-27 |
Family
ID=31017150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12480085U Pending JPS6233016U (en) | 1985-08-14 | 1985-08-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233016U (en) |
-
1985
- 1985-08-14 JP JP12480085U patent/JPS6233016U/ja active Pending
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