JPH01164432U - - Google Patents
Info
- Publication number
- JPH01164432U JPH01164432U JP5876288U JP5876288U JPH01164432U JP H01164432 U JPH01164432 U JP H01164432U JP 5876288 U JP5876288 U JP 5876288U JP 5876288 U JP5876288 U JP 5876288U JP H01164432 U JPH01164432 U JP H01164432U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- detection mark
- blade position
- optical sensor
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000000295 complement effect Effects 0.000 claims 1
Landscapes
- Diaphragms For Cameras (AREA)
Description
第1図は本考案の1実施例に係る閉鎖状態のプ
ログラムシヤツタを撮影レンズ側から見た正面図
、第2図は第1図に示すプログラムシヤツタの全
開状態の正面図、第3図は光センサの1例を示す
断面図、第4図は第1図及び第2図に示す光セン
サの出力パルスを示すタイムチヤート、第5図及
び第6図は第1図及び第2図に示すプログラムシ
ヤツタの変形例を示す正面図、第7図は本考案の
他の実施例に係る全開状態のプログラムシヤツタ
を撮影レンズ側から見た正面図。
1…シヤツタ地板、2・3…シヤツタ羽根、4
・5…検出マーク列、6・7…光センサ、8…光
センサ、12・13…シヤツタ羽根、17・18
…検出マーク列、19・20…光センサ。
FIG. 1 is a front view of a program shutter in a closed state according to an embodiment of the present invention as seen from the photographing lens side, FIG. 2 is a front view of the program shutter shown in FIG. 1 in a fully open state, and FIG. is a cross-sectional view showing one example of the optical sensor, FIG. 4 is a time chart showing the output pulses of the optical sensor shown in FIGS. 1 and 2, and FIGS. 5 and 6 are the same as in FIGS. FIG. 7 is a front view showing a modified example of the program shutter shown in FIG. 7, and FIG. 7 is a front view of the program shutter in a fully open state according to another embodiment of the present invention, as seen from the photographic lens side. 1...Shutter base plate, 2.3...Shutter blade, 4
・5...Detection mark row, 6.7...Photo sensor, 8...Photo sensor, 12.13...Shutter blade, 17.18
...Detection mark row, 19/20... Optical sensor.
Claims (1)
式の検出マーク列を備え、 前記検出マーク列の通過線上に配置された光セ
ンサにより、前記検出マーク列を構成する検出マ
ークを検出して、羽根位置を検出する羽根位置検
出装置において、 前記羽根の走行動作線に沿つて複数の検出マー
ク列を相互補完的に設けたことを特徴とする羽根
位置検出装置。 (2) 実用新案登録請求の範囲第1項記載の羽根
位置検出装置において、 前記複数の動作線を視野に包含する単一の光セ
ンサにより、前記複数の検出マーク列を構成する
各々の検出マークを検出する様にした羽根位置検
出装置。 (3) 実用新案登録請求の範囲第1項記載の羽根
位置検出装置において、 前記複数の検出マーク列毎に各々光センサを設
けたことを特徴とする羽根位置検出装置。[Claims for Utility Model Registration] (1) A reflection type or transmission type detection mark array is provided along the traveling motion line of the blade, and the detection mark array is detected by an optical sensor disposed on a passing line of the detection mark array. A blade position detection device that detects a blade position by detecting detection marks constituting a blade, characterized in that a plurality of detection mark rows are provided complementary to each other along a traveling motion line of the blade. Device. (2) In the blade position detection device according to claim 1 of the utility model registration, each detection mark constituting the plurality of detection mark rows is detected by a single optical sensor that includes the plurality of motion lines in its field of view. A blade position detection device designed to detect. (3) The blade position detection device according to claim 1, wherein an optical sensor is provided for each of the plurality of detection mark rows.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5876288U JPH01164432U (en) | 1988-04-30 | 1988-04-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5876288U JPH01164432U (en) | 1988-04-30 | 1988-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01164432U true JPH01164432U (en) | 1989-11-16 |
Family
ID=31284560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5876288U Pending JPH01164432U (en) | 1988-04-30 | 1988-04-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01164432U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590458U (en) * | 1992-05-21 | 1993-12-10 | オリンパス光学工業株式会社 | Light control device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951304A (en) * | 1982-09-17 | 1984-03-24 | Ono Sokki Co Ltd | Apparatus for measuring displacement |
JPS5951305A (en) * | 1982-09-17 | 1984-03-24 | Ono Sokki Co Ltd | Apparatus for measuring displacement |
JPS5968605A (en) * | 1982-10-14 | 1984-04-18 | Toshiba Corp | Detector for moving state of object |
-
1988
- 1988-04-30 JP JP5876288U patent/JPH01164432U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951304A (en) * | 1982-09-17 | 1984-03-24 | Ono Sokki Co Ltd | Apparatus for measuring displacement |
JPS5951305A (en) * | 1982-09-17 | 1984-03-24 | Ono Sokki Co Ltd | Apparatus for measuring displacement |
JPS5968605A (en) * | 1982-10-14 | 1984-04-18 | Toshiba Corp | Detector for moving state of object |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590458U (en) * | 1992-05-21 | 1993-12-10 | オリンパス光学工業株式会社 | Light control device |
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