JPS6380534U - - Google Patents
Info
- Publication number
- JPS6380534U JPS6380534U JP17527286U JP17527286U JPS6380534U JP S6380534 U JPS6380534 U JP S6380534U JP 17527286 U JP17527286 U JP 17527286U JP 17527286 U JP17527286 U JP 17527286U JP S6380534 U JPS6380534 U JP S6380534U
- Authority
- JP
- Japan
- Prior art keywords
- ring member
- optical axis
- tool
- photographic lens
- rotatable around
- 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 6
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Structure And Mechanism Of Cameras (AREA)
Description
第１図は本考案の第１実施例を示す正面断面図
、第２図は同じく分解斜視図、第３図は同じく作
動説明図、第４図は本考案の第２実施例を示す要
部斜視図（第３図に対応する）である。
（主要部分の符号の説明）、カムリング（第１
のリング）……３０、固定手段……４２，５６，
７０、工具係合部……４４、工具支持部……５４
、駆動リング（第２のリング）……５０、調整工
具……８０。
Fig. 1 is a front sectional view showing the first embodiment of the invention, Fig. 2 is an exploded perspective view, Fig. 3 is an explanatory view of the operation, and Fig. 4 is a main part showing the second embodiment of the invention. FIG. 3 is a perspective view (corresponding to FIG. 3). (Explanation of symbols of main parts), cam ring (first
ring)...30, fixing means...42,56,
70, Tool engaging part...44, Tool supporting part...54
, drive ring (second ring)...50, adjustment tool...80.
Claims (1)
なうカメラにおいて、 光軸まわりに回転可能とされ、回転に伴ない前
記撮影レンズを光軸方向に移動させるようになつ
ており、外周縁には工具係合部が形成された第１
のリング部材と、 光軸まわりに回転可能であり、レリーズ操作に
応答して円周方向の駆動力を受ける第２のリング
部材と、 前記第１のリング部材と前記第２のリング部材
とを通常は光軸まわりに相対回転不能としている
が、必要に応じて相対回転可能とする固定手段と
、 カメラボデイまたは前記第２のリング部材に形
成された工具支持部と を有し、回転式の調整工具の先端部を前記工具支
持部により回転可能に支持するとともに、前記固
定手段により前記第１のリング部材と前記第２の
リング部材とを光軸まわりに相対移動可能とした
状態で、前記調整工具の駆動部を前記工具係合部
に係合させて前記調整工具を回転することにより
、前記第１のリング部材を回転できるようにした
ことを特徴とするバツクフオーカス調整装置。[Claims for Utility Model Registration] A camera in which focus is adjusted by moving a photographic lens in the optical axis direction, which is rotatable around the optical axis, and the photographic lens is moved in the optical axis direction as the photographic lens rotates. The first part has a tool engaging part formed on its outer periphery.
a second ring member that is rotatable around the optical axis and receives driving force in the circumferential direction in response to a release operation; and the first ring member and the second ring member. Normally, it is not relatively rotatable around the optical axis, but it has a fixing means that allows relative rotation if necessary, and a tool support part formed on the camera body or the second ring member. The tip part of the adjustment tool is rotatably supported by the tool support part, and the first ring member and the second ring member are movable relative to each other around the optical axis by the fixing means, A backfocus adjusting device characterized in that the first ring member can be rotated by engaging a driving portion of the adjusting tool with the tool engaging portion and rotating the adjusting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17527286U JPS6380534U (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17527286U JPS6380534U (en) | 1986-11-17 | 1986-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6380534U true JPS6380534U (en) | 1988-05-27 |
Family
ID=31114441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17527286U Pending JPS6380534U (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380534U (en) |
-
1986
- 1986-11-17 JP JP17527286U patent/JPS6380534U/ja active Pending
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