JPS6419928U - - Google Patents
Info
- Publication number
- JPS6419928U JPS6419928U JP11369587U JP11369587U JPS6419928U JP S6419928 U JPS6419928 U JP S6419928U JP 11369587 U JP11369587 U JP 11369587U JP 11369587 U JP11369587 U JP 11369587U JP S6419928 U JPS6419928 U JP S6419928U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- slit
- blades
- window
- camera
- 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
- 239000000758 substrate Substances 0.000 claims description 2
Landscapes
- Shutters For Cameras (AREA)
Description
第１図は本考案の実施例を示した平面図で、第
２図は従来例を示した平面図である。
１……基板、２……開口窓、３……スリツト形
成羽根、４，５，６……遮光羽根、７……第１ア
ーム、７ａ，７ｂ，７ｃ，７ｄ……支持部、９…
…第２アーム、８ａ，８ｂ，８ｃ，８ｄ……支持
部。
FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a plan view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Opening window, 3... Slit forming blade, 4, 5, 6... Shading blade, 7... First arm, 7a, 7b, 7c, 7d... Support part, 9...
...Second arm, 8a, 8b, 8c, 8d...Support part.
Claims (1)
、 複数ｎ枚に分割されていて、前記基板の窓上に
一部が互いに重なり部分を有するように連接して
散開して前記開口窓を閉鎖し、窓を遮らない領域
にて収納されるようにしたスリツト形成羽根と遮
光羽根とを含んで成る羽根群と、 前記羽根群を支持し、且つ基幹部が前記基板に
対して回動可能に軸支されている複数本から成る
支持部材と、 を含んでいて、 前記羽根群が散開して前記開口窓上を遮光して
いる状態の時、おのおのの羽根の重なり部分の量
（重合幅）が、スリツト形成羽根と該スリツト形
成羽根と隣接する遮光羽根とにより形成される羽
根の重合幅Ｌ１が最小であつて、該スリツト羽根
から離反する方向の羽根へ向かうにしたがつて漸
増するようにした Ｌ１＜Ｌ２＜……＜Ｌｎ−１ の関係である ことを特徴とするカメラ用フオーカルプレンシヤ
ツタ。 (2) 前記羽根の重なり部分の量は、スリツト形
成羽根の幅をＷ１とし、該羽根から離反する方向
に順次連接する各遮光羽根の幅をＷ２〜Ｗｎとし
、 Ｗ１＜Ｗ２＜……＜Ｗｎ の関係となるようにした ことを特徴とする実用新案登録請求の範囲第１項
記載のカメラ用フオーカルプレンシヤツタ。[Claims for Utility Model Registration] (1) A board provided with an aperture window that serves as a light path during photographing, and a plurality of n pieces that are divided into n pieces and connected so that some overlap with each other on the window of the board. a blade group comprising a slit-forming blade and a light-shielding blade, which are spread out to close the opening window and are stored in an area that does not block the window; and a main body supporting the blade group. a support member consisting of a plurality of pieces rotatably supported on the substrate; and when the group of blades is spread out to block light above the opening window, each of the blades The amount of overlapping portion (overlapping width) of the blades is such that the overlapping width L1 of the blades formed by the slit-forming blade and the shading blade adjacent to the slit-forming blade is the minimum, and the blade is in the direction away from the slit blade. A focal plane shutter for a camera, characterized in that the relationship L1<L2<...<L n-1 increases gradually as the lens moves towards the camera. (2) The amount of the overlapping portion of the blades is as follows: W1 is the width of the slit-forming blade, and W2 to Wn are the widths of each light-shielding blade sequentially connected in the direction away from the blade, W1<W2<...<Wn A focal plane shutter for a camera according to claim 1, characterized in that the focal plane shutter for a camera has the following relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113695U JPH0524901Y2 (en) | 1987-07-24 | 1987-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113695U JPH0524901Y2 (en) | 1987-07-24 | 1987-07-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6419928U true JPS6419928U (en) | 1989-01-31 |
| JPH0524901Y2 JPH0524901Y2 (en) | 1993-06-24 |
Family
ID=31353760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987113695U Expired - Lifetime JPH0524901Y2 (en) | 1987-07-24 | 1987-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524901Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63115125U (en) * | 1987-01-21 | 1988-07-25 |
-
1987
- 1987-07-24 JP JP1987113695U patent/JPH0524901Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63115125U (en) * | 1987-01-21 | 1988-07-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524901Y2 (en) | 1993-06-24 |
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