JPS6438611U - - Google Patents
Info
- Publication number
- JPS6438611U JPS6438611U JP13491587U JP13491587U JPS6438611U JP S6438611 U JPS6438611 U JP S6438611U JP 13491587 U JP13491587 U JP 13491587U JP 13491587 U JP13491587 U JP 13491587U JP S6438611 U JPS6438611 U JP S6438611U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- screw
- cam
- position adjustment
- fixed
- 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 2
Landscapes
- Lens Barrels (AREA)
Description
第１図および第２図は、本考案の概念を示すズ
ームレンズの焦点位置調整機構の分解斜視図およ
び上半部の断面図、第３図は、本考案の一実施例
を示すズームレンズの焦点位置調整機構の分解斜
視図、第４図は、本考案のズームレンズの焦点位
置調整機構におけるねじ環の他の例を示す斜視図
、第５図は、本考案のズームレンズの焦点位置調
整機構におけるねじ環の更に他の例を示す斜視図
、第６図は、上記第５図のねじ環が組み込まれた
ズームレンズの焦点位置調整機構の上半部の断面
図である。
１……固定枠、２……カム枠、３，１７，１８
……ねじ環。
1 and 2 are an exploded perspective view and a cross-sectional view of the upper half of a focal position adjustment mechanism of a zoom lens that illustrates the concept of the present invention, and FIG. 3 is a sectional view of the upper half of a zoom lens that illustrates an embodiment of the present invention. FIG. 4 is an exploded perspective view of the focal position adjustment mechanism of the zoom lens according to the present invention. FIG. 5 is a perspective view showing another example of the screw ring in the focal position adjustment mechanism of the zoom lens of the present invention. FIG. 6, a perspective view showing still another example of the threaded ring in the mechanism, is a sectional view of the upper half of the focal position adjustment mechanism of a zoom lens in which the threaded ring shown in FIG. 5 is incorporated. 1... Fixed frame, 2... Cam frame, 3, 17, 18
...screw ring.
Claims (1)
枠と、 この固定枠に対し光軸周りに回動自在に嵌合し
ていて、レンズのズーミングを行なわせるカムを
有するカム枠と、 このカム枠の端部に刻設され、同枠を焦点位置
調整のために光軸方向に移動させるねじと、 上記固定枠に対し光軸周りに回動自在に、光軸
方向に移動不能に支持されていて、上記カム枠の
ねじと螺合するねじを有する焦点位置調整用のね
じ環と、 を具備したことを特徴とするズームレンズの焦点
位置調整機構。[Scope of Claim for Utility Model Registration] A fixed frame fixed to an immovable member such as a lens mount, and a cam fitted to the fixed frame so as to be rotatable around the optical axis and capable of zooming the lens. a cam frame; a screw carved into the end of the cam frame to move the frame in the optical axis direction for focal position adjustment; A focus position adjustment mechanism for a zoom lens, comprising: a focus position adjustment screw ring that is immovably supported by the cam frame and has a screw threadedly engaged with the screw of the cam frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987134915U JP2536021Y2 (en) | 1987-09-02 | 1987-09-02 | Zoom lens focal position adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987134915U JP2536021Y2 (en) | 1987-09-02 | 1987-09-02 | Zoom lens focal position adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6438611U true JPS6438611U (en) | 1989-03-08 |
| JP2536021Y2 JP2536021Y2 (en) | 1997-05-21 |
Family
ID=31394089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987134915U Expired - Lifetime JP2536021Y2 (en) | 1987-09-02 | 1987-09-02 | Zoom lens focal position adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536021Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010186192A (en) * | 2010-04-07 | 2010-08-26 | Panasonic Corp | Lens barrel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5062531U (en) * | 1973-10-08 | 1975-06-07 | ||
| JPS5862311U (en) * | 1981-10-21 | 1983-04-26 | 富岡光学株式会社 | Zoom lens barrel mechanism |
| JPS58102861U (en) * | 1981-12-30 | 1983-07-13 | 株式会社リコー | Bracket removal mechanism for screw moving device |
| JPS612612U (en) * | 1984-06-12 | 1986-01-09 | オリンパス光学工業株式会社 | Zoom lens focus adjustment mechanism |
| JPS614914U (en) * | 1984-06-14 | 1986-01-13 | キヤノン株式会社 | lens barrel |
-
1987
- 1987-09-02 JP JP1987134915U patent/JP2536021Y2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5062531U (en) * | 1973-10-08 | 1975-06-07 | ||
| JPS5862311U (en) * | 1981-10-21 | 1983-04-26 | 富岡光学株式会社 | Zoom lens barrel mechanism |
| JPS58102861U (en) * | 1981-12-30 | 1983-07-13 | 株式会社リコー | Bracket removal mechanism for screw moving device |
| JPS612612U (en) * | 1984-06-12 | 1986-01-09 | オリンパス光学工業株式会社 | Zoom lens focus adjustment mechanism |
| JPS614914U (en) * | 1984-06-14 | 1986-01-13 | キヤノン株式会社 | lens barrel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010186192A (en) * | 2010-04-07 | 2010-08-26 | Panasonic Corp | Lens barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536021Y2 (en) | 1997-05-21 |