JPH023527U - - Google Patents
Info
- Publication number
- JPH023527U JPH023527U JP8072788U JP8072788U JPH023527U JP H023527 U JPH023527 U JP H023527U JP 8072788 U JP8072788 U JP 8072788U JP 8072788 U JP8072788 U JP 8072788U JP H023527 U JPH023527 U JP H023527U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- aperture
- plate
- aperture plate
- optical axis
- 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 4
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Diaphragms For Cameras (AREA)
Description
第１図は本考案の絞り装置を設けたレンズの一
実施例の光路図を示す。第２図ａ，ｂは上記のレ
ンズと絞り装置とをカメラのレンズ鏡胴部に装着
した状態を示すもので、第２図ａは光軸に沿つて
の断面図、第２図ｂは光軸に垂直の断面図を示す
。第３図はＬ１レンズの断面図を示す。第４図ａ
，ｂはＬ２レンズの平面図と断面図を示す。第５
図は固定絞り板の平面図を示す。
１０…Ｌ１レンズ、１３…フランジ部、１４…
平面部、２０…Ｌ２レンズ、２３…フランジ部、
２４…平面部、２５Ａ，２５Ｂ…ガイド部、３０
…固定絞り板、３１…穴部、４０…可動絞り板、
４１，４２…円形穴、１００…前壁（カメラ）、
１０２…円筒部、１１０…押え鏡胴部材。
FIG. 1 shows an optical path diagram of an embodiment of a lens provided with an aperture device of the present invention. Figures 2a and 2b show the above lens and aperture device attached to the lens barrel of a camera. Figure 2a is a sectional view along the optical axis, and Figure 2b is a sectional view of the optical axis. A cross section perpendicular to the axis is shown. FIG. 3 shows a cross-sectional view of the L1 lens. Figure 4a
, b show a plan view and a cross-sectional view of the L2 lens. Fifth
The figure shows a plan view of the fixed aperture plate. 10...L1 lens, 13...flange part, 14...
Plane part, 20...L2 lens, 23...flange part,
24...Plane part, 25A, 25B...Guide part, 30
...fixed aperture plate, 31...hole, 40...movable aperture plate,
41, 42...Circular hole, 100...Front wall (camera),
102... Cylindrical part, 110... Holder lens barrel member.
Claims (1)
該ガイド部に沿つて移動可能とするとともに、前
記レンズと隣合うレンズ又はその間に位置する固
定絞り板によつて光軸方向の位置が規制される絞
り孔部を有した板状の可動絞り板を設けたことを
特徴とするレンズの絞り装置。 A guide part that protrudes integrally with the lens is provided,
a plate-shaped movable aperture plate that is movable along the guide portion and has an aperture hole portion whose position in the optical axis direction is regulated by the lens adjacent to the lens or a fixed aperture plate located between the lenses; A lens aperture device characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8072788U JPH023527U (en) | 1988-06-17 | 1988-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8072788U JPH023527U (en) | 1988-06-17 | 1988-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023527U true JPH023527U (en) | 1990-01-10 |
Family
ID=31305546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8072788U Pending JPH023527U (en) | 1988-06-17 | 1988-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021021847A (en) * | 2019-07-29 | 2021-02-18 | 株式会社タムロン | Lens unit and camera module equipped therewith |
-
1988
- 1988-06-17 JP JP8072788U patent/JPH023527U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021021847A (en) * | 2019-07-29 | 2021-02-18 | 株式会社タムロン | Lens unit and camera module equipped therewith |