JPS5816627U - Finder optical system - Google Patents
Finder optical systemInfo
- Publication number
- JPS5816627U JPS5816627U JP10900681U JP10900681U JPS5816627U JP S5816627 U JPS5816627 U JP S5816627U JP 10900681 U JP10900681 U JP 10900681U JP 10900681 U JP10900681 U JP 10900681U JP S5816627 U JPS5816627 U JP S5816627U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting member
- light beam
- reflected
- lens
- light
- 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
Landscapes
- Viewfinders (AREA)
- Cameras In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図、第２図は各々本考案の第１実施例、第２実施例
のファインダー光学系の概略図である。
図中１は撮影レンズ、２は光分割器、２１は光分割面、
３． ４． ５は各々第１、第２、第３反射部材、６は
接眼レンズ、７は撮影管、１ａはズームレンズのズニム
部、１ｂはズームレンズのリレ一部である。1 and 2 are schematic diagrams of finder optical systems of a first embodiment and a second embodiment of the present invention, respectively. In the figure, 1 is a photographing lens, 2 is a light splitter, 21 is a light splitting surface,
3. 4. Reference numerals 5 designate first, second, and third reflecting members, 6 an eyepiece lens, 7 a photographing tube, 1a a lens portion of the zoom lens, and 1b a relay portion of the zoom lens.
Claims (1)
ァインダー光束に分割する光分割口を配置し、前記光分
割器の上方若しくは下方に前記光゛分割器により分割反
射された光束を物体側方向へ反射させる第１反射部材を
配置し、前記第１反射部材より物体側に前記第１反射部
材からの反射光、 束を前記撮影レンズの側方に反射
させる第２反射部材を配置し、前記撮影レンズの側方に
前記第２反射部材からの反射光束を前記操影レンズの結
像面方向へ反射させる第３反射部材を配置し、前記第３
反射部材より前記撮影レンズの結像面側に前記第３反射
部材からの反射光束を受ける接眼レンズを配置し、前記
光分割器により分割反射された被写体からの光束の一部
を順次前記第１、第２、第３反射部材で反射させた後、
前記接眼レンズに入射させることによりファインダー像
の観察をすることを特徴としたファインダー光学系。A light splitting aperture is arranged in the optical path of the photographing lens to split the light beam from the object into the photographing light beam and the finder light beam, and the light beam split and reflected by the light splitter is directed above or below the light splitter toward the object side. A first reflecting member is disposed to reflect the reflected light from the first reflecting member toward the object side, and a second reflecting member is disposed to reflect the reflected light from the first reflecting member to the side of the photographic lens. A third reflecting member that reflects the reflected light beam from the second reflecting member toward the imaging plane of the imaging lens is disposed on the side of the photographic lens, and the third reflecting member
An eyepiece lens that receives the reflected light beam from the third reflecting member is disposed closer to the imaging surface of the photographing lens than the reflecting member, and a portion of the light beam from the subject that has been split and reflected by the light splitter is sequentially transmitted to the first , after being reflected by the second and third reflecting members,
A finder optical system characterized in that a finder image is observed by making it enter the eyepiece lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10900681U JPS5816627U (en) | 1981-07-21 | 1981-07-21 | Finder optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10900681U JPS5816627U (en) | 1981-07-21 | 1981-07-21 | Finder optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5816627U true JPS5816627U (en) | 1983-02-01 |
Family
ID=29903392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10900681U Pending JPS5816627U (en) | 1981-07-21 | 1981-07-21 | Finder optical system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164777U (en) * | 1986-04-09 | 1987-10-20 |
-
1981
- 1981-07-21 JP JP10900681U patent/JPS5816627U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164777U (en) * | 1986-04-09 | 1987-10-20 |
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