JPS63120215U - - Google Patents
Info
- Publication number
- JPS63120215U JPS63120215U JP1028887U JP1028887U JPS63120215U JP S63120215 U JPS63120215 U JP S63120215U JP 1028887 U JP1028887 U JP 1028887U JP 1028887 U JP1028887 U JP 1028887U JP S63120215 U JPS63120215 U JP S63120215U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- lens
- main cylinder
- face
- receiver
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案のズームレンズの鏡筒の一実施
例を示す断面図、第２図はその組立手順を説明す
るための要部の分解斜視図、第３図はそのカム部
の展開図である。
１１，１２……鏡筒本体としての固定筒および
固定環、１４……カム受筒、１４ａ，１４ｂ……
回動規制部、１５……カム主筒、１７，１９……
レンズ保持枠、１７ｂ，１９ｂ……カム追従部材
。
Fig. 1 is a sectional view showing an embodiment of the zoom lens barrel of the present invention, Fig. 2 is an exploded perspective view of the main parts to explain the assembly procedure, and Fig. 3 is an exploded view of the cam part. It is. 11, 12...Fixed tube and fixed ring as a lens barrel body, 14...Cam receiver tube, 14a, 14b...
Rotation regulating portion, 15...Cam main cylinder, 17, 19...
Lens holding frame, 17b, 19b... cam following member.
Claims (1)
倍レンズ系用および補正レンズ系用の二つのレン
ズ保持枠と、 この二つのレンズ保持枠の位置をそれぞれ回動
角で制御するカム筒とを有するズームレンズにお
いて、 変倍レンズ系用のカム面と補正レンズ系用のカ
ム面とこの二つのカム面を連結する面とで端面を
形成されたカム主筒と、 このカム主筒に対して回動規制部を有し、かつ
カム主筒のカム面と反転した形状の端面を形成さ
れたカム受筒とを有し、 前記二つのレンズ保持枠上のカム追従部材を、
それぞれカム主筒の端面とカム受筒の端面との間
に配置し、 前記カム主筒とカム受筒とを分割構成の鏡筒本
体により回動自在に挟持したことを特徴とするズ
ームレンズの鏡筒。[Claim for Utility Model Registration] Two lens holding frames for a variable power lens system and a correction lens system that are guided so as to be slidable only in the optical axis direction, and the positions of these two lens holding frames are determined by the respective rotation angles. In the zoom lens, the main cam barrel has an end face formed by a cam surface for a variable power lens system, a cam surface for a correction lens system, and a surface connecting these two cam surfaces; The cam main cylinder has a rotation restricting portion and a cam receiver having an end face having an inverted shape to the cam surface of the cam main cylinder, and the cam follower on the two lens holding frames. parts,
A zoom lens characterized in that the cam main cylinder and the cam receiver are respectively disposed between an end face of a cam main cylinder and an end face of a cam receiver, and the cam main cylinder and the cam receiver are rotatably held by a split lens barrel body. lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987010288U JPH0731205Y2 (en) | 1987-01-27 | 1987-01-27 | Zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987010288U JPH0731205Y2 (en) | 1987-01-27 | 1987-01-27 | Zoom lens barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120215U true JPS63120215U (en) | 1988-08-03 |
| JPH0731205Y2 JPH0731205Y2 (en) | 1995-07-19 |
Family
ID=30796441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987010288U Expired - Lifetime JPH0731205Y2 (en) | 1987-01-27 | 1987-01-27 | Zoom lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731205Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357755A (en) * | 2001-05-31 | 2002-12-13 | Sony Corp | Optical device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974934A (en) * | 1972-11-18 | 1974-07-19 | ||
| JPS58195204U (en) * | 1982-06-23 | 1983-12-26 | 株式会社日立製作所 | Cam ring for zoom lens |
| JPS6181637U (en) * | 1984-10-31 | 1986-05-30 | ||
| JPS61153018U (en) * | 1985-03-15 | 1986-09-22 |
-
1987
- 1987-01-27 JP JP1987010288U patent/JPH0731205Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974934A (en) * | 1972-11-18 | 1974-07-19 | ||
| JPS58195204U (en) * | 1982-06-23 | 1983-12-26 | 株式会社日立製作所 | Cam ring for zoom lens |
| JPS6181637U (en) * | 1984-10-31 | 1986-05-30 | ||
| JPS61153018U (en) * | 1985-03-15 | 1986-09-22 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357755A (en) * | 2001-05-31 | 2002-12-13 | Sony Corp | Optical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731205Y2 (en) | 1995-07-19 |