JPS6078016U - iris iris device - Google Patents
iris iris deviceInfo
- Publication number
- JPS6078016U JPS6078016U JP13109484U JP13109484U JPS6078016U JP S6078016 U JPS6078016 U JP S6078016U JP 13109484 U JP13109484 U JP 13109484U JP 13109484 U JP13109484 U JP 13109484U JP S6078016 U JPS6078016 U JP S6078016U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- iris
- aperture
- blades
- last
- 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
Landscapes
- Diaphragms For Cameras (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図は従来例における絞り装置の夫々大開口
、小開口位置にある各羽根の配置を示す平面図、第３図
は上記絞り装置の絞り込み位置にある羽根の部分的拡大
図。第４図は本願考案を実施した羽根の平面図、第５図
、第６図は本願考案に係る絞り装置の大開口、小開口位
置にある羽根の構成配置を示す平面図。第７図は第５，
６図に示す絞り装置の絞り込み位置にある羽根の部分的
拡大図。
３：縁辺部、５：延展部、ａ、ｂ、ｃ、ｄ。
ｅ：羽根、Ｄ：固有開孔。Figures 1 and 2 are plan views showing the arrangement of the blades in the large aperture and small aperture positions, respectively, of a conventional aperture device, and Figure 3 is a partially enlarged view of the blades in the aperture position of the aperture device. . FIG. 4 is a plan view of a blade according to the present invention, and FIGS. 5 and 6 are plan views showing the configuration and arrangement of the blades at the large aperture and small aperture positions of the diaphragm device according to the present invention. Figure 7 shows the 5th
FIG. 7 is a partially enlarged view of the blades of the aperture device shown in FIG. 6 at the aperture position. 3: Marginal part, 5: Extension part, a, b, c, d. e: vane, D: inherent aperture.
Claims (1)
座板と、この座板上に基端部を回動自在に支承され縁辺
部で任意の絞り開口を合成する複数の羽根と、この羽根
に係合して絞り開口を設定する羽根作動部材とを有する
絞り装置において、上記座板に順次積み重ねて鱗状に組
込む最初の羽根と最後の羽根との間に介在する中間の羽
根を、（イ）最初の羽根に隣接する羽根と、最後の羽根
に隣接する羽根の内、閉成時に最後の羽根に対し重合方
向に侵入する傾向にある羽根の先端部を開閉全域におい
て最初の羽根と最後の羽根との間に介在するよう延長せ
しめた弧状延展部を形成し、 （ロ） 上記弧状延展部を形成した羽根を除く他の中
間の羽根はその縁辺部が絞り開孔を形成するよ′ う
前記開孔の中心に向けて先端を臨ませて成る虹彩絞り装
置。[Claims for Utility Model Registration] A seat plate having an opening concentric with the optical axis formed on a plane perpendicular to the optical axis, and an edge portion with the base end rotatably supported on the seat plate. In a diaphragm device having a plurality of blades for synthesizing an arbitrary diaphragm aperture, and a blade actuating member that engages with the blades to set the diaphragm aperture, the first blade and the last blade are sequentially stacked and assembled in scales on the seat plate. (a) A blade adjacent to the first blade and a blade adjacent to the last blade tend to intrude into the last blade in the overlapping direction when closing. Forming an extended arcuate part at the tip of a certain blade so as to be interposed between the first blade and the last blade in the opening/closing area; An iris iris diaphragm device in which the edges of the blades form an diaphragm aperture and the tips thereof face toward the center of the aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13109484U JPS6078016U (en) | 1984-08-29 | 1984-08-29 | iris iris device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13109484U JPS6078016U (en) | 1984-08-29 | 1984-08-29 | iris iris device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6078016U true JPS6078016U (en) | 1985-05-31 |
| JPS6350656Y2 JPS6350656Y2 (en) | 1988-12-27 |
Family
ID=30296490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13109484U Granted JPS6078016U (en) | 1984-08-29 | 1984-08-29 | iris iris device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6078016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005248A (en) * | 2001-06-25 | 2003-01-08 | Canon Inc | Iris type light quantity adjusting device, lens barrel and photographing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140221U (en) * | 1974-09-19 | 1976-03-25 |
-
1984
- 1984-08-29 JP JP13109484U patent/JPS6078016U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140221U (en) * | 1974-09-19 | 1976-03-25 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005248A (en) * | 2001-06-25 | 2003-01-08 | Canon Inc | Iris type light quantity adjusting device, lens barrel and photographing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350656Y2 (en) | 1988-12-27 |
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