JPS622013U - - Google Patents
Info
- Publication number
- JPS622013U JPS622013U JP9293485U JP9293485U JPS622013U JP S622013 U JPS622013 U JP S622013U JP 9293485 U JP9293485 U JP 9293485U JP 9293485 U JP9293485 U JP 9293485U JP S622013 U JPS622013 U JP S622013U
- Authority
- JP
- Japan
- Prior art keywords
- macro
- button
- optical axis
- zoom
- macro button
- 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 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案によるズームレンズのマクロ切
換機構の一実施例を示す断面図、第２図はマクロ
切換機構部のズーム操作域状態の拡大断面図、第
３図はマクロ操作域状態の拡大断面図、第４図は
第２図の正面断面図、第５図は第３図の正面断面
図である。
１…固定筒、２…カム環、３…ズーム環、４…
マクロツマミ、５…マクロ釦、６…マクロバネ、
７…指標環、８…ズームピン、９…カムフオロア
ー。
Fig. 1 is a sectional view showing an embodiment of the macro switching mechanism of the zoom lens according to the present invention, Fig. 2 is an enlarged sectional view of the macro switching mechanism in the zoom operation range state, and Fig. 3 is an enlarged view of the macro operation range state. 4 is a front sectional view of FIG. 2, and FIG. 5 is a front sectional view of FIG. 3. 1...Fixed barrel, 2...Cam ring, 3...Zoom ring, 4...
Macro knob, 5... Macro button, 6... Macro spring,
7... Index ring, 8... Zoom pin, 9... Cam follower.
Claims (1)
のカム環に変倍系レンズ群および補正系レンズ群
を光軸方向に移動させズーミングとマクロフオー
カシングを行う為の連続して穿設されたカム溝を
備え、固定筒外周部に回動可能に保持されたズー
ム環の外周の所定位置に一体で取付られた例えば
合成樹脂一体成形のマクロツマミと、そのツマミ
内にマクロ釦を収納したマクロ切換機構において
、前記マクロ釦は光軸に直角方向に圧縮コイルバ
ネの作用により摺動可能であり、その先端の一部
は弾性変形させて前記ズーム環を貫通して装着で
きる部材、例えば合成樹脂であると共に、その先
端の突起により圧縮コイルバネの押上力による抜
け防止機構を具備し、その突起の回動軌跡上の所
定位置にストツパーを設け、前記マクロ釦を前記
光軸と直角方向に押圧し、前記ストツパーに対す
る前記突起の係合を断ち、前記ズーム環の回動範
囲をズーミング操作域から、マクロフオーカシン
グ操作域へ切換えるように構成したことを特徴と
するズームレンズのマクロ切換機構。 Inside the fixed tube, there is a cam ring that is rotatably housed, and continuous holes are provided in the cam ring to move the variable power lens group and the correction lens group in the optical axis direction for zooming and macro focusing. For example, a macro knob made of integrally molded synthetic resin is integrally attached to a predetermined position on the outer periphery of a zoom ring rotatably held on the outer periphery of a fixed cylinder, and the macro button is housed within the knob. In the macro switching mechanism, the macro button is slidable in a direction perpendicular to the optical axis by the action of a compression coil spring, and a part of the tip thereof is made of a member, such as synthetic resin, that can be elastically deformed and attached by penetrating the zoom ring. In addition, a protrusion at the tip of the macro button is provided with a mechanism for preventing the macro button from coming off by the pushing up force of a compression coil spring, and a stopper is provided at a predetermined position on the rotation locus of the protrusion to press the macro button in a direction perpendicular to the optical axis. . A macro switching mechanism for a zoom lens, characterized in that the projection is disengaged from the stopper and the rotation range of the zoom ring is switched from a zooming operation range to a macro focusing operation range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9293485U JPS622013U (en) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9293485U JPS622013U (en) | 1985-06-21 | 1985-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS622013U true JPS622013U (en) | 1987-01-08 |
Family
ID=30650166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9293485U Pending JPS622013U (en) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622013U (en) |
-
1985
- 1985-06-21 JP JP9293485U patent/JPS622013U/ja active Pending
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