JPS58159504U - Lens movement prevention device for interchangeable lenses - Google Patents
Lens movement prevention device for interchangeable lensesInfo
- Publication number
- JPS58159504U JPS58159504U JP5554482U JP5554482U JPS58159504U JP S58159504 U JPS58159504 U JP S58159504U JP 5554482 U JP5554482 U JP 5554482U JP 5554482 U JP5554482 U JP 5554482U JP S58159504 U JPS58159504 U JP S58159504U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- cam
- prevention device
- movement prevention
- lens movement
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の実施例の一部切断側面図。
第２図は主要部品の一部の分解斜視図。第３図は第２図
のＡ−Ａ線部分の断面図。第４図イ５口。
ハは、固定鏡胴の直線みぞとカム筒のカムみぞとの関係
を異なる状態について示す展開図。
図中、１・・・固定鏡胴１．２・・・フォーカス操作環
、３・・・前筒、４・・・移動枠、４ａ・・・ピン、５
・・・保持枠、５ａ・・・ピン、６．７・・・第１、第
２の直線みぞ、８、・・・カム筒、８ａ・・・ピン、９
．１０・・・第１、第２のカムみぞ、９ａ・・・直線部
、１１・・・ズーム操作環、１２・・・円周みそ、１３
・・・板ばね、１３ａ・・・突出片。FIG. 1 is a partially cutaway side view of an embodiment of this invention. Figure 2 is an exploded perspective view of some of the main parts. FIG. 3 is a sectional view taken along line A-A in FIG. 2. Figure 4 A 5 mouths. C is a development view showing the relationship between the linear groove of the fixed lens barrel and the cam groove of the cam tube in different states. In the figure, 1... Fixed lens barrel 1. 2... Focus operation ring, 3... Front tube, 4... Moving frame, 4a... Pin, 5
...Holding frame, 5a...Pin, 6.7...First and second straight grooves, 8,...Cam cylinder, 8a...Pin, 9
．． DESCRIPTION OF SYMBOLS 10... First and second cam grooves, 9a... Straight line portion, 11... Zoom operation ring, 12... Circumferential groove, 13
...Plate spring, 13a...Protruding piece.
Claims (1)
したカム筒８を回動させて第１および第２レンズ群り、
、 Ｌ２を光軸方向に相対的に移動してズーミングを行
い、第ルンズ群し□、を前方に繰り出して至近距離調節
を行う交換レンズにおいて、カム筒８に形成した第１カ
ムみぞ９の一端部に前方に伸びる光軸に平行な直線部９
ａを設け、カム筒８上にはその直線部９ａに沿って該直
線部９ａをおおいかつ入口端に上反りした突出片１３ａ
を備えた板はね１３を定着し、第ルンズ群し□の移動枠
４のピン４ａを抑止するようにしてなるレンズの移動防
止装置。It has two lens groups L2, and rotates the cam tube 8 fitted to the fixed lens barrel 1 to form the first and second lens groups,
, L2 is relatively moved in the optical axis direction to perform zooming, and the first lens group □ is brought forward to adjust the close distance.One end of the first cam groove 9 formed in the cam barrel 8 A straight section 9 parallel to the optical axis extending forward in the section.
a, and a protruding piece 13a is provided on the cam cylinder 8 along the straight part 9a, covering the straight part 9a and curved upward at the inlet end.
The lens movement prevention device is constructed by fixing a plate spring 13 with a plate spring 13 and restraining the pin 4a of the movable frame 4 of the first lens group □.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5554482U JPS58159504U (en) | 1982-04-19 | 1982-04-19 | Lens movement prevention device for interchangeable lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5554482U JPS58159504U (en) | 1982-04-19 | 1982-04-19 | Lens movement prevention device for interchangeable lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58159504U true JPS58159504U (en) | 1983-10-24 |
Family
ID=30066116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5554482U Pending JPS58159504U (en) | 1982-04-19 | 1982-04-19 | Lens movement prevention device for interchangeable lenses |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58159504U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332731B2 (en) * | 1974-06-10 | 1978-09-09 | ||
| JPS5630309B2 (en) * | 1978-05-29 | 1981-07-14 |
-
1982
- 1982-04-19 JP JP5554482U patent/JPS58159504U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332731B2 (en) * | 1974-06-10 | 1978-09-09 | ||
| JPS5630309B2 (en) * | 1978-05-29 | 1981-07-14 |
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