JPH0435112U - - Google Patents
Info
- Publication number
- JPH0435112U JPH0435112U JP7658890U JP7658890U JPH0435112U JP H0435112 U JPH0435112 U JP H0435112U JP 7658890 U JP7658890 U JP 7658890U JP 7658890 U JP7658890 U JP 7658890U JP H0435112 U JPH0435112 U JP H0435112U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- lead screw
- zoom lens
- frame
- supported
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案の一実施例を示すズームレンズ
鏡胴の横断平面図、第２図は要部を示した同ズー
ムレンズ鏡胴の簡略的な分解斜視図、第３図はば
ね腕の構成例を詳細に示した部分的な断面図、第
４図及び第５図はばね腕の圧接部の構成例を示し
た部分図、第６図〜第８図は従来のズームレンズ
鏡胴を示し、第６図は当該ズームレンズ鏡胴が備
えるズーム機構図、第７図は当該ズームレンズ鏡
胴が備えるフオーカス機構図、第８図はリードス
クリユー軸を押圧にする板ばねを取付けた状態を
示す部分的な斜視図である。
３５……前側胴部、３６……後側胴部、４０，
４１……リードスクリユー軸、４２……軸受板、
４３，４４……軸孔、４６……プリズム枠、４７
，４８……ばね腕、５２……ズーム用の支持枠、
５４……フオーカス用の支持枠。
Fig. 1 is a cross-sectional plan view of a zoom lens barrel showing an embodiment of the present invention, Fig. 2 is a simplified exploded perspective view of the zoom lens barrel showing the main parts, and Fig. 3 is a spring arm of the zoom lens barrel. FIGS. 4 and 5 are partial cross-sectional views showing examples of the structure of the pressure contact portion of the spring arm, and FIGS. 6 to 8 show a conventional zoom lens barrel. 6 is a diagram of the zoom mechanism of the zoom lens barrel, FIG. 7 is a diagram of the focus mechanism of the zoom lens barrel, and FIG. 8 is a state in which a leaf spring for pressing the lead screw shaft is attached. FIG. 35...front body part, 36...rear body part, 40,
41... Lead screw shaft, 42... Bearing plate,
43, 44... shaft hole, 46... prism frame, 47
, 48... Spring arm, 52... Support frame for zooming,
54... Support frame for focus.
Claims (1)
動させて移動させ変倍する構成のズームレンズ鏡
胴において、リードスクリユー軸の一端部を鏡胴
固定部によつて支持させると共に、その他端部を
鏡胴内に固定した板材の軸孔を通して軸受し、か
つ、その先端部を、上記板材に取付けたプリズム
枠や鏡胴に取付けたレンズ枠などの光学枠体に一
体形成したばね部材によつて押圧する支軸機構を
備えたことを特徴とするズームレンズ鏡胴。 In a zoom lens barrel configured to change magnification by moving the lens support frame in conjunction with the rotation of the lead screw shaft, one end of the lead screw shaft is supported by the lens barrel fixing part, and the other end is supported by the lens barrel fixing part. A spring member is mounted through the shaft hole of a plate fixed in the lens barrel, and its tip is integrally formed with an optical frame such as a prism frame attached to the plate or a lens frame attached to the lens barrel. A zoom lens barrel characterized by being equipped with a pressing support shaft mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7658890U JP2533185Y2 (en) | 1990-07-20 | 1990-07-20 | Zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7658890U JP2533185Y2 (en) | 1990-07-20 | 1990-07-20 | Zoom lens barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0435112U true JPH0435112U (en) | 1992-03-24 |
| JP2533185Y2 JP2533185Y2 (en) | 1997-04-23 |
Family
ID=31618195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7658890U Expired - Lifetime JP2533185Y2 (en) | 1990-07-20 | 1990-07-20 | Zoom lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533185Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009169160A (en) * | 2008-01-17 | 2009-07-30 | Canon Inc | Lens drive mechanism |
-
1990
- 1990-07-20 JP JP7658890U patent/JP2533185Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009169160A (en) * | 2008-01-17 | 2009-07-30 | Canon Inc | Lens drive mechanism |
| US8451552B2 (en) | 2008-01-17 | 2013-05-28 | Canon Kabushiki Kaisha | Lens driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533185Y2 (en) | 1997-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |