JPH0157723U - - Google Patents
Info
- Publication number
- JPH0157723U JPH0157723U JP15274287U JP15274287U JPH0157723U JP H0157723 U JPH0157723 U JP H0157723U JP 15274287 U JP15274287 U JP 15274287U JP 15274287 U JP15274287 U JP 15274287U JP H0157723 U JPH0157723 U JP H0157723U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- finder
- optical axis
- lens
- variable magnification
- 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 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Viewfinders (AREA)
Description
第１図および第２図は本考案に係る変倍フアイ
ンダ装置の一実施例を示す要部分解斜視図および
その動作説明図、第３図は本考案装置の具体的構
成を示す概略側面図、第４図および第５図はその
平面図および正面図である。
１……変倍フアインダ装置、２……フアインダ
枠、３……第１対物レンズ、４……第２対物レン
ズ、３ａ，４ａ……係合突起、１０……枢支軸、
１１……レンズ駆動機構、１２……アーム部、１
３，１４……支持片、１８……ガイドバー、２０
……フアインダカム部材、２０ａ……長溝、２１
……カム面、２２……連動レバー、２２ｂ……係
合子、２２ｃ……長溝。
1 and 2 are an exploded perspective view of essential parts and an explanatory diagram of its operation showing an embodiment of the variable magnification viewfinder device according to the present invention, and FIG. 3 is a schematic side view showing the specific configuration of the device of the present invention. FIGS. 4 and 5 are a plan view and a front view thereof. DESCRIPTION OF SYMBOLS 1... variable magnification viewfinder device, 2... viewfinder frame, 3... first objective lens, 4... second objective lens, 3a, 4a... engaging protrusion, 10... pivot shaft,
11...Lens drive mechanism, 12...Arm portion, 1
3, 14...Support piece, 18...Guide bar, 20
...Finder cam member, 20a...Long groove, 21
...Cam surface, 22 ... Interlocking lever, 22b ... Engagement element, 22c ... Long groove.
Claims (1)
フアインダ光学系での像倍率を変化させる変倍フ
アインダ装置において、フアインダ光軸上から退
避可能に構成された第１対物レンズと、この第１
対物レンズに対し接近、離間するようにフアイン
ダ光軸上で移動可能に構成された第２対物レンズ
を備えてなり、前記第１対物レンズを、その側部
一端寄りに設けた枢支軸により回動可能に支持す
るとともに、前記第２対物レンズが離間したとき
にその第２対物レンズとの間の間隙内で、この第
１対物レンズを回動して倒伏させフアインダ光軸
上から退避させるレンズ駆動機構を設けたことを
特徴とする変倍フアインダ装置。 (2) 第１対物レンズの枢支軸を、その側部一端
寄りであつてその光軸方向にずれた位置に設けた
ことを特徴とする実用新案登録請求の範囲第１項
記載の変倍フアインダ装置。[Scope of Claim for Utility Model Registration] (1) In a variable magnification finder device that changes the image magnification in the finder optical system as the focal length of the photographic lens system changes, the device is configured to be retractable from the optical axis of the finder. a first objective lens;
The second objective lens is configured to be movable on the finder optical axis so as to approach and separate from the objective lens, and the first objective lens is rotated by a pivot shaft provided near one end of the side thereof. A lens that movably supports the first objective lens and rotates the first objective lens within a gap between the second objective lens and the second objective lens when the second objective lens is separated from the second objective lens, causing the first objective lens to fall down and retreat from the viewfinder optical axis. A variable magnification viewfinder device characterized by being provided with a drive mechanism. (2) The variable magnification according to claim 1 of the utility model registration claim, characterized in that the pivot axis of the first objective lens is provided at a position near one end of the side thereof and shifted in the direction of its optical axis. Fine finder device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152742U JPH0618346Y2 (en) | 1987-10-07 | 1987-10-07 | Variable magnification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152742U JPH0618346Y2 (en) | 1987-10-07 | 1987-10-07 | Variable magnification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0157723U true JPH0157723U (en) | 1989-04-11 |
| JPH0618346Y2 JPH0618346Y2 (en) | 1994-05-11 |
Family
ID=31427940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987152742U Expired - Lifetime JPH0618346Y2 (en) | 1987-10-07 | 1987-10-07 | Variable magnification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618346Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5896523U (en) * | 1982-09-07 | 1983-06-30 | キ−ストウン・カメラ・コ−ポレイシヨン | camera |
| JPS61124028U (en) * | 1985-01-19 | 1986-08-05 | ||
| JPS61183627A (en) * | 1985-02-08 | 1986-08-16 | Minolta Camera Co Ltd | Image switching device of variable power finder |
-
1987
- 1987-10-07 JP JP1987152742U patent/JPH0618346Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5896523U (en) * | 1982-09-07 | 1983-06-30 | キ−ストウン・カメラ・コ−ポレイシヨン | camera |
| JPS61124028U (en) * | 1985-01-19 | 1986-08-05 | ||
| JPS61183627A (en) * | 1985-02-08 | 1986-08-16 | Minolta Camera Co Ltd | Image switching device of variable power finder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0618346Y2 (en) | 1994-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63101927U (en) | ||
| JPH0157723U (en) | ||
| JPH0420026U (en) | ||
| JPH0169224U (en) | ||
| JPS6443317U (en) | ||
| JPS61132809U (en) | ||
| JPH03103430U (en) | ||
| JPS59131726U (en) | Diopter adjustment device for single-lens reflex cameras | |
| JPH0227105U (en) | ||
| JPH02210314A (en) | Zoom lens driving mechanism | |
| JPH0420011U (en) | ||
| JPS6440828U (en) | ||
| JPS5839459Y2 (en) | Mirror actuator for single-lens reflex camera | |
| JPS6230222U (en) | ||
| JPS61120129A (en) | Lens switching mechanism | |
| JPS6265637U (en) | ||
| JP2727731B2 (en) | Viewfinder diopter adjustment device | |
| JPS6212139U (en) | ||
| JPS59176008U (en) | Camera focal length variable device | |
| JPH0229029U (en) | ||
| JPS59144622U (en) | Camera focus adjustment mechanism | |
| JPS58123432U (en) | Mirror drive device for single-lens reflex cameras | |
| JPS5990937U (en) | Mirror device suitable for direct photometry | |
| JPH0548476U (en) | Imaging device | |
| JPH0477116U (en) |