JPH02107115U - - Google Patents
Info
- Publication number
- JPH02107115U JPH02107115U JP1488389U JP1488389U JPH02107115U JP H02107115 U JPH02107115 U JP H02107115U JP 1488389 U JP1488389 U JP 1488389U JP 1488389 U JP1488389 U JP 1488389U JP H02107115 U JPH02107115 U JP H02107115U
- Authority
- JP
- Japan
- Prior art keywords
- group lens
- rear group
- stopper member
- lens
- lens barrel
- 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
- 230000003139 buffering effect Effects 0.000 claims 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
Description
第１Ａ，１Ｂ，１Ｃ，１Ｄ図はそれぞれ本考案
のズームレンズ鏡筒の実施例を示す要部の縦断面
図、第２Ａ，２Ｂ図は本考案のズームレンズ鏡筒
の全体構造を異なる断面位置で示す、最短焦点距
離状態での断面図、第３図、第４図、第５図はそ
れぞれ、同じく中間焦点距離、最長焦点距離、収
納の各状態を示す断面図、第６図は分解斜視図で
ある。
１１…ヘリコイド環、１２…制御ユニツト、１
３…第１レンズ支持枠、１３ａ…直進案内溝、１
４…連動ピン、１５…固定環、１５ａ…直進案内
溝、１５ｂ…逃げ溝、１６…第１カム環、１６ａ
，１６ｂ…カム溝、１７…ギヤ、２０…第２カム
環、２１…片面カム、２１ａ…カム面、２２…連
動ピン、２４…ガイドロツド、２５…第２レンズ
支持枠、２６…連動ピン、２７…圧縮ばね、３０
…ストツパピン、３１，３２…弾性部材、３３，
３５…係合片、３４，３６…圧縮ばね、Ｌ１…前
群レンズ、Ｌ２…後群レンズ。
Figures 1A, 1B, 1C, and 1D are longitudinal cross-sectional views of essential parts showing embodiments of the zoom lens barrel of the present invention, and Figures 2A and 2B show the overall structure of the zoom lens barrel of the present invention at different sectional positions. Figures 3, 4, and 5 are cross-sectional views showing the intermediate focal length, maximum focal length, and retracted states, respectively, and Figure 6 is an exploded perspective view. It is a diagram. 11... Helicoid ring, 12... Control unit, 1
3...first lens support frame, 13a...straight guide groove, 1
4... Interlocking pin, 15... Fixed ring, 15a... Straight guide groove, 15b... Relief groove, 16... First cam ring, 16a
, 16b...Cam groove, 17...Gear, 20...Second cam ring, 21...Single-sided cam, 21a...Cam surface, 22...Interlocking pin, 24...Guide rod, 25...Second lens support frame, 26...Interlocking pin, 27 ...compression spring, 30
...Stopper pin, 31, 32...Elastic member, 33,
35... Engaging piece, 34, 36... Compression spring, L1... Front group lens, L2... Rear group lens.
Claims (1)
ズームレンズ鏡筒において、前群と後群のレンズ
を、その撮影可能位置より後方の収納位置に移動
可能とし、かつ後群レンズを前群レンズに対して
接近移動可能とするとともに、後群レンズを前群
レンズから離反する方向に付勢し、 カメラボデイ側には、後群レンズが最短焦点距
離から収納位置に移動したとき、後群レンズと一
体の部材に当接して、上記ばね手段に抗して後群
レンズを前群レンズに接近させるストツパ部材を
設け、 かつこのストツパ部材と後群レンズと一体の部
材との当接面間に、緩衝手段を設けたことを特徴
とするズームレンズ鏡筒。 (2) 請求項１において、緩衝手段は、ストツパ
部材と後群レンズ枠の当接部分の少なくとも一方
に添着した弾性部材からなつているズームレンズ
鏡筒。 (3) 請求項１において、緩衝手段は、ストツパ
部材の先端は、ばね手段によつて後群レンズ枠側
に移動付勢して設けた、後群レンズ枠との係合片
であるズームレンズ鏡筒。 (4) 請求項１において、緩衝手段は、後群レン
ズ枠の後部に、ストツパ部材側にばね手段によつ
て移動付勢して設けた、ストツパ部材との係合片
であるズームレンズ鏡筒。[Claims for Utility Model Registration] (1) In a zoom lens barrel having at least two movable lens groups, front and rear, the front and rear group lenses are movable to a storage position rearward from their photographic position, and The rear group lens can be moved closer to the front group lens, and the rear group lens is biased in the direction away from the front group lens. A stopper member is provided which, when moved, comes into contact with a member integral with the rear group lens and causes the rear group lens to approach the front group lens against the spring means, and the stopper member and a member integral with the rear group lens are provided. A zoom lens barrel characterized in that a buffering means is provided between the abutting surfaces. (2) The zoom lens barrel according to claim 1, wherein the buffer means is an elastic member attached to at least one of the stopper member and the contact portion of the rear group lens frame. (3) In claim 1, the buffering means is a zoom lens in which the distal end of the stopper member is an engaging piece with the rear group lens frame, the distal end of the stopper member being biased to move toward the rear group lens frame side by a spring means. lens barrel. (4) In claim 1, the buffering means is a zoom lens barrel which is an engagement piece with a stopper member provided at the rear of the rear group lens frame and biased to move toward the stopper member by a spring means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1488389U JPH02107115U (en) | 1989-02-10 | 1989-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1488389U JPH02107115U (en) | 1989-02-10 | 1989-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02107115U true JPH02107115U (en) | 1990-08-27 |
Family
ID=31226469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1488389U Pending JPH02107115U (en) | 1989-02-10 | 1989-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010072536A (en) * | 2008-09-22 | 2010-04-02 | Canon Inc | Imaging apparatus |
| JP2014052429A (en) * | 2012-09-05 | 2014-03-20 | Fujifilm Corp | Optical device and imaging device including the same |
-
1989
- 1989-02-10 JP JP1488389U patent/JPH02107115U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010072536A (en) * | 2008-09-22 | 2010-04-02 | Canon Inc | Imaging apparatus |
| JP2014052429A (en) * | 2012-09-05 | 2014-03-20 | Fujifilm Corp | Optical device and imaging device including the same |
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