JPS6225901U - - Google Patents
Info
- Publication number
- JPS6225901U JPS6225901U JP11755685U JP11755685U JPS6225901U JP S6225901 U JPS6225901 U JP S6225901U JP 11755685 U JP11755685 U JP 11755685U JP 11755685 U JP11755685 U JP 11755685U JP S6225901 U JPS6225901 U JP S6225901U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- aperture
- optical lens
- mounting part
- fixed
- 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 description 6
Landscapes
- Viewfinders (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
第1図は本考案固定絞り装置の一実施例を示す
分解斜視図、第2図は接眼レンズ5および固定絞
り7を装着する前の状態を示す縦断面図、第3図
は接眼レンズ5および固定絞り7を装着した状態
を示す縦断面図、第4図は固定絞りが設けられて
いないフアインダ光学系の一例を示す縦断面図、
第5図は接眼レンズ装着部4と一体の固定絞り7
を有するフアインダ光学系の従来例を示す縦断面
図である。
1:プリズム収容箱、2:着座部、3:ペンタ
プリズム、4:接眼レンズ装着部、5:接眼レン
ズ、6:焦点板、7:固定絞り、40:接眼レン
ズ装着部、40a:レンズ嵌合部、40b:開口
、40b―1:当接部。
Fig. 1 is an exploded perspective view showing an embodiment of the fixed diaphragm device of the present invention, Fig. 2 is a vertical cross-sectional view showing the state before the eyepiece 5 and fixed diaphragm 7 are attached, and Fig. 3 is the eyepiece 5 and the fixed diaphragm 7. A vertical cross-sectional view showing a state in which the fixed aperture 7 is installed, FIG. 4 is a vertical cross-sectional view showing an example of a finder optical system without a fixed aperture,
Figure 5 shows a fixed aperture 7 integrated with the eyepiece mounting part 4.
FIG. 2 is a vertical cross-sectional view showing a conventional example of a finder optical system having the following. 1: Prism storage box, 2: Seating section, 3: Pentaprism, 4: Eyepiece mounting section, 5: Eyepiece lens, 6: Focus plate, 7: Fixed aperture, 40: Eyepiece mounting section, 40a: Lens fitting part, 40b: opening, 40b-1: contact part.
Claims (1)
べきレンズの表面に応じた曲面を備えた当接部と
を有するレンズ装着部と;そのレンズ装着部に装
着される光学レンズと;可撓性部材から成り前記
光学レンズと前記当接部との間で、前記光学レン
ズ表面の曲面に沿つて変形してその全周が密着挾
持される固定絞りと;を具備したことを特徴とす
る光学系の固定絞り装置。 A lens mounting part having an aperture and a contact part formed around the aperture and having a curved surface corresponding to the surface of the lens to be mounted; An optical lens mounted on the lens mounting part; Flexible an optical system comprising: a fixed diaphragm that is made of a member and is deformed along the curved surface of the optical lens surface and tightly clamped around the entire circumference between the optical lens and the contact portion; fixed aperture device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11755685U JPS6225901U (en) | 1985-07-30 | 1985-07-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11755685U JPS6225901U (en) | 1985-07-30 | 1985-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6225901U true JPS6225901U (en) | 1987-02-17 |
Family
ID=31003181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11755685U Pending JPS6225901U (en) | 1985-07-30 | 1985-07-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6225901U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001133700A (en) * | 1999-11-05 | 2001-05-18 | Olympus Optical Co Ltd | Real image type finder optical system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912112B2 (en) * | 1976-01-01 | 1984-03-21 | 帝国臓器製薬株式会社 | New substituted aniline derivatives |
JPS59127986A (en) * | 1983-01-13 | 1984-07-23 | Matsushita Electric Ind Co Ltd | Laser working device |
-
1985
- 1985-07-30 JP JP11755685U patent/JPS6225901U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912112B2 (en) * | 1976-01-01 | 1984-03-21 | 帝国臓器製薬株式会社 | New substituted aniline derivatives |
JPS59127986A (en) * | 1983-01-13 | 1984-07-23 | Matsushita Electric Ind Co Ltd | Laser working device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001133700A (en) * | 1999-11-05 | 2001-05-18 | Olympus Optical Co Ltd | Real image type finder optical system |
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