JPS6265637U - - Google Patents
Info
- Publication number
- JPS6265637U JPS6265637U JP15655585U JP15655585U JPS6265637U JP S6265637 U JPS6265637 U JP S6265637U JP 15655585 U JP15655585 U JP 15655585U JP 15655585 U JP15655585 U JP 15655585U JP S6265637 U JPS6265637 U JP S6265637U
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- auxiliary lens
- lens
- shooting state
- focal length
- 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 8
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の要部を示す概略斜視図である
。第２図は第１図のＡ―Ａ′線断面図、第３図は
第２図の作動状態を示す断面図である。第４図は
従来例を示す概略図である。
１０…焦点切替部材、１１…カム面、１２…突
部、２０…保持部材、２１…補助レンズ、２２…
鏡筒、２３…枢支軸、３０…空洞軸、４０…シヤ
ツター台板、５０…停止部材、６０…調節ネジ、
６１…取り付け部材。
FIG. 1 is a schematic perspective view showing the main parts of the present invention. 2 is a sectional view taken along the line AA' in FIG. 1, and FIG. 3 is a sectional view showing the operating state of FIG. 2. FIG. 4 is a schematic diagram showing a conventional example. DESCRIPTION OF SYMBOLS 10... Focus switching member, 11... Cam surface, 12... Protrusion, 20... Holding member, 21... Auxiliary lens, 22...
Lens barrel, 23... Pivot shaft, 30... Hollow shaft, 40... Shutter base plate, 50... Stop member, 60... Adjustment screw,
61... Attachment member.
Claims (1)
影状態と、該主レンズの光軸方向の移動に伴つて
該主レンズの光軸上、後方に補助レンズを追加す
ることで異なる焦点距離を得る第２撮影状態とに
焦点距離を任意に切替えることが可能である焦点
切替カメラにおいて、第２撮影状態から第１撮影
状態へ切替える際、補助レンズを光軸に沿つてフ
イルム面側に移動させるカム面及び、補助レンズ
を光軸に平行な軸を中心として光軸上から回動退
避させる突部を備えた焦点切替部材と、該焦点切
替部材が回動すると、前記カム面によつてフイル
ム面側に移動させられ、さらに前記突部によつて
回動させられて光軸上から退避する補助レンズを
取り付けた保持部材と、該保持部材が前記カム面
と当接する方向に付勢する第１の付勢部材と、該
保持部材を補助レンズ光軸上に向う方向に付勢す
る第２の付勢部材と、補助レンズを光軸上の位置
に停止させる停止部材とからなる焦点切替カメラ
の切替装置。 A first photographing state in which only a main lens having a predetermined focal length is used, and a different focal length is obtained by adding an auxiliary lens behind the main lens on the optical axis as the main lens moves in the optical axis direction. In a focus switching camera whose focal length can be arbitrarily switched between the second shooting state and the second shooting state, a cam that moves the auxiliary lens toward the film surface along the optical axis when switching from the second shooting state to the first shooting state. a focus switching member having a protrusion for rotating and retracting the auxiliary lens from the optical axis about an axis parallel to the optical axis; and when the focus switching member rotates, the film surface is moved by the cam surface. a holding member attached with an auxiliary lens that is moved to the side and further rotated by the protrusion to retreat from the optical axis; and a first member that urges the holding member in a direction in which it comes into contact with the cam surface. A second biasing member that biases the holding member in a direction on the optical axis of the auxiliary lens, and a stop member that stops the auxiliary lens at a position on the optical axis. Switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15655585U JPS6265637U (en) | 1985-10-14 | 1985-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15655585U JPS6265637U (en) | 1985-10-14 | 1985-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6265637U true JPS6265637U (en) | 1987-04-23 |
Family
ID=31078279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15655585U Pending JPS6265637U (en) | 1985-10-14 | 1985-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6265637U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433027A (en) * | 1977-08-19 | 1979-03-10 | Nitto Optical | Camera having focall distance changeeover lens |
| JPS58145930A (en) * | 1982-02-24 | 1983-08-31 | Fuji Photo Film Co Ltd | Changeover mechanism of lens system changing type camera |
-
1985
- 1985-10-14 JP JP15655585U patent/JPS6265637U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433027A (en) * | 1977-08-19 | 1979-03-10 | Nitto Optical | Camera having focall distance changeeover lens |
| JPS58145930A (en) * | 1982-02-24 | 1983-08-31 | Fuji Photo Film Co Ltd | Changeover mechanism of lens system changing type camera |
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