JPS6056013U - Straight zoom lens barrel - Google Patents
Straight zoom lens barrelInfo
- Publication number
- JPS6056013U JPS6056013U JP14932683U JP14932683U JPS6056013U JP S6056013 U JPS6056013 U JP S6056013U JP 14932683 U JP14932683 U JP 14932683U JP 14932683 U JP14932683 U JP 14932683U JP S6056013 U JPS6056013 U JP S6056013U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- frame
- zoom lens
- sliding
- auxiliary frame
- 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
Landscapes
- Lens Barrels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のズームレンズの一例を示す断面図、第２
図はそのカム枠の展開図、第３図は本考案による一実施
例を示す断面図、第４図はその本体のカム部分の展開図
、第５図はそのカム枠の展開図である。
１・・・・・・本体、２・・・・・・摺動枠、４・・・
・・・カム枠、９・・・・・・可動鏡筒、１０・・・・
・・操作環、１２・・・・・・本考案摺動枠、１３・・
・・・・補助枠、１５・・・・・・補助カムピン。Figure 1 is a sectional view showing an example of a conventional zoom lens, Figure 2 is a sectional view showing an example of a conventional zoom lens.
The figure is a developed view of the cam frame, FIG. 3 is a sectional view showing an embodiment of the present invention, FIG. 4 is a developed view of the cam portion of the main body, and FIG. 5 is a developed view of the cam frame. 1...Main body, 2...Sliding frame, 4...
...Cam frame, 9...Movable lens barrel, 10...
...Operation ring, 12... Sliding frame of the present invention, 13...
...Auxiliary frame, 15...Auxiliary cam pin.
Claims (1)
ン調整を行い、光軸方向に摺動させることによりズーミ
ングを行う様にした直進式ズームレンズにおいて、レン
ズが内周部を摺動移動する本体の外周部に摺動自在に装
着された摺動枠と、その摺動枠の一端に回転自在に装着
された補助枠と、本体の外周部に回転自在に装着され、
その一端が前記摺動枠と補助枠の外周部にかぶさる様に
延長されているカム筒とを備え、移動レンズの鏡枠に植
設されたピンが本体の縦溝を嵌通して前記カム筒のカム
溝に嵌入し、補助枠の内周および外周部に植設されたピ
ンが、内周は本体のカム溝に、外周はカム筒の力１．溝
に夫々嵌入し、操作環を光軸方向に摺動移動させた時、
カム筒の回転量が、本体のカム溝による回転量と、カム
筒のカム溝による回転量の和となることを特徴とする直
進式ズームレンズの鏡筒。 ２ 前記回転自在に装着された補助枠を、ねじ嵌合によ
り螺動する事を特徴とする実用新案登録請求の範囲第１
項記載の直進式ズームレンズの鏡筒。[Scope of Claim for Utility Model Registration] 1. In a linear zoom lens in which the piston is adjusted by rotating the operation ring around the optical axis and zooming is performed by sliding it in the direction of the optical axis, the lens is a sliding frame that is slidably attached to the outer periphery of the main body that slides the parts; an auxiliary frame that is rotatably attached to one end of the sliding frame; ,
A cam barrel is provided, one end of which is extended so as to cover the outer periphery of the sliding frame and the auxiliary frame, and a pin implanted in the lens frame of the movable lens is fitted into the vertical groove of the main body to form the cam barrel. The pins fit into the cam grooves of the auxiliary frame and are implanted on the inner and outer peripheries of the auxiliary frame. When inserted into the respective grooves and sliding the operation ring in the direction of the optical axis,
A linear zoom lens barrel characterized in that the amount of rotation of the cam tube is the sum of the amount of rotation due to the cam groove of the main body and the amount of rotation due to the cam groove of the cam tube. 2. Utility model registration claim 1, characterized in that the rotatably mounted auxiliary frame is threaded by screw fitting.
Lens barrel of the linear zoom lens described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932683U JPS6056013U (en) | 1983-09-27 | 1983-09-27 | Straight zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932683U JPS6056013U (en) | 1983-09-27 | 1983-09-27 | Straight zoom lens barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6056013U true JPS6056013U (en) | 1985-04-19 |
Family
ID=30331511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14932683U Pending JPS6056013U (en) | 1983-09-27 | 1983-09-27 | Straight zoom lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131218A (en) * | 1985-12-02 | 1987-06-13 | Asahi Optical Co Ltd | Body tube for zoom lens |
-
1983
- 1983-09-27 JP JP14932683U patent/JPS6056013U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131218A (en) * | 1985-12-02 | 1987-06-13 | Asahi Optical Co Ltd | Body tube for zoom lens |
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