JPH0233013U - - Google Patents
Info
- Publication number
- JPH0233013U JPH0233013U JP11115888U JP11115888U JPH0233013U JP H0233013 U JPH0233013 U JP H0233013U JP 11115888 U JP11115888 U JP 11115888U JP 11115888 U JP11115888 U JP 11115888U JP H0233013 U JPH0233013 U JP H0233013U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- focusing
- zoom lens
- frame
- lens barrel
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
Landscapes
- Lens Barrels (AREA)
Description
図面は本考案の一実施例を示し、第1図は第2
図上のB―B線に沿つて切断したズームレンズ鏡
胴の断面図、第2図は第1図上のA―A線に沿つ
て切断して同ズームレンズ鏡胴の断面図、第3図
は第2図上のC―C線に沿つて切断した同ズーム
レンズ鏡胴の上半部分の断面図、第4図は同ズー
ムレンズ鏡胴の分解斜視図、第5図aはズーミン
グ用カム筒の前面を示す簡略図、第5図bは同カ
ム筒の後面を示す簡略図、第6図aは焦点整合用
カム筒の前面を示す簡略図、第6図bは同カム筒
の後面を示す簡略図、第7図はばね受枠を移動筒
に固着するねじ止め構造を示す部分図、第8図は
ズーミングの動作を示す部分断面図、第9図は焦
点の整合動作を示す部分断面図である。
11……固定枠、12……移動筒、12a,1
2b……凸条部、13……ズーミング用のカム筒
、13a……第1のカム孔、13b……第2のカ
ム孔、13d……弧状細孔、13e……切込溝、
14……焦点整合用のカム筒、14a……カム孔
、14c……弧状細孔、14d……切込溝、15
……第1移動枠、16……第2移動枠、18a,
18b,18c……カムフオロア、21c……ス
トツパー、23a,23b,23c……カムフオ
ロア、26a,26b,26c……カムフオロア
、30c……ストツパー。
The drawings show one embodiment of the present invention, and FIG.
2 is a cross-sectional view of the zoom lens barrel taken along the line B-B in the figure; FIG. 2 is a cross-sectional view of the zoom lens barrel taken along the line A-A in FIG. 1; The figure is a sectional view of the upper half of the zoom lens barrel taken along line C-C in Figure 2, Figure 4 is an exploded perspective view of the zoom lens barrel, and Figure 5a is for zooming. FIG. 5b is a simplified diagram showing the front surface of the cam barrel, FIG. 5b is a simplified diagram showing the rear surface of the cam barrel, FIG. 6a is a simplified diagram showing the front surface of the focusing cam barrel, and FIG. A simplified view showing the rear surface, FIG. 7 is a partial view showing the screw fastening structure for fixing the spring receiving frame to the movable tube, FIG. 8 is a partial cross-sectional view showing the zooming operation, and FIG. 9 is a partial view showing the focus alignment operation. FIG. 11... fixed frame, 12... movable cylinder, 12a, 1
2b... Convex strip, 13... Cam tube for zooming, 13a... First cam hole, 13b... Second cam hole, 13d... Arc-shaped pore, 13e... Cut groove,
14... Cam barrel for focusing, 14a... Cam hole, 14c... Arc-shaped pore, 14d... Cut groove, 15
...First moving frame, 16... Second moving frame, 18a,
18b, 18c...cam follower, 21c...stopper, 23a, 23b, 23c...cam follower, 26a, 26b, 26c...cam follower, 30c...stopper.
Claims (1)
に連動させて移動させて光学的に変倍する構成の
ズームレンズ鏡胴において、光軸回り方向に回動
自在に、光軸方向には共に移動するように一つの
移動枠にバヨネツト構成によつて連結した焦点整
合用カム枠を設け、焦点整合用の光学系を支持す
る移動枠をこのカム枠に連動させて移動させる構
成としたことを特徴とする焦点整合機構を備えた
ズームレンズ鏡胴。 In a zoom lens barrel configured to optically change magnification by moving multiple movable frames that support the optical system in conjunction with the rotation of a cam frame, A focusing cam frame is provided that is connected to one moving frame by a bayonet configuration so that the two move together, and the moving frame that supports the focusing optical system is moved in conjunction with this cam frame. A zoom lens barrel equipped with a focusing mechanism characterized by:
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988111158U JPH0723768Y2 (en) | 1988-08-26 | 1988-08-26 | Zoom lens barrel with focus adjustment mechanism |
US07/380,140 US5037187A (en) | 1988-08-12 | 1989-07-14 | Zoom lens mount assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988111158U JPH0723768Y2 (en) | 1988-08-26 | 1988-08-26 | Zoom lens barrel with focus adjustment mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0233013U true JPH0233013U (en) | 1990-03-01 |
JPH0723768Y2 JPH0723768Y2 (en) | 1995-05-31 |
Family
ID=31348959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988111158U Expired - Lifetime JPH0723768Y2 (en) | 1988-08-12 | 1988-08-26 | Zoom lens barrel with focus adjustment mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0723768Y2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6368618U (en) * | 1986-10-24 | 1988-05-09 | ||
JPS63149616A (en) * | 1986-12-15 | 1988-06-22 | Fuji Photo Optical Co Ltd | Moving structure for lens of camera |
-
1988
- 1988-08-26 JP JP1988111158U patent/JPH0723768Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6368618U (en) * | 1986-10-24 | 1988-05-09 | ||
JPS63149616A (en) * | 1986-12-15 | 1988-06-22 | Fuji Photo Optical Co Ltd | Moving structure for lens of camera |
Also Published As
Publication number | Publication date |
---|---|
JPH0723768Y2 (en) | 1995-05-31 |
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