JPS6384125U - - Google Patents
Info
- Publication number
- JPS6384125U JPS6384125U JP17913686U JP17913686U JPS6384125U JP S6384125 U JPS6384125 U JP S6384125U JP 17913686 U JP17913686 U JP 17913686U JP 17913686 U JP17913686 U JP 17913686U JP S6384125 U JPS6384125 U JP S6384125U
- Authority
- JP
- Japan
- Prior art keywords
- optical path
- path hole
- light shielding
- rotating member
- shielding blade
- 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 2
- 230000003287 optical effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exposure Control For Cameras (AREA)
- Cameras In General (AREA)
- Diaphragms For Cameras (AREA)
Description
第１図は本考案による電動式露光装置の要部の
分解斜視図、第２図は本考案の装置に装備された
開孔状態検出手段としての非接触検出器の配置構
造を示した拡大側面図、第３図ａは絞りが開放と
なつている状態を示す図、第３図ｂは絞りが小絞
り状態になつている状態を示した図、第４図ａ，
ｂ，ｃ，ｄ及び第５図は本考案の装置に内蔵され
たモータの構造と動作を説明するための図、第６
図は本考案の装置を組込んだカメラにおける制御
回路の一部を示すブロツク図、である。
１……支持部材、２……ロータ、４……ピニオ
ン、５……軸受板、６〜９……ステータ、１０，
１１……コイルの鉄心、１２，１３……ステータ
用コイル、１４……非接触検出器、１５……カム
板、１６……絞り羽根（遮光羽根）、１７……回
転リング（回転部材）、１８……プリント配線板
、１９……反射板。
Fig. 1 is an exploded perspective view of the main parts of the electric exposure apparatus according to the present invention, and Fig. 2 is an enlarged side view showing the arrangement structure of a non-contact detector as an open hole state detection means equipped in the apparatus according to the present invention. Fig. 3a shows the aperture in the open state, Fig. 3b shows the aperture in the small aperture state, Fig. 4a,
Figures b, c, d and 5 are diagrams for explaining the structure and operation of the motor built into the device of the present invention.
The figure is a block diagram showing part of a control circuit in a camera incorporating the device of the present invention. DESCRIPTION OF SYMBOLS 1... Support member, 2... Rotor, 4... Pinion, 5... Bearing plate, 6-9... Stator, 10,
11... Coil core, 12, 13... Stator coil, 14... Non-contact detector, 15... Cam plate, 16... Aperture blade (light shielding blade), 17... Rotating ring (rotating member), 18...Printed wiring board, 19...Reflector.
Claims (1)
開閉するための遮光羽根を具備した環状の回転部
材と、該回転部材を回転させるためのモータと、
を有して成る電動式露光装置において、 該遮光羽根による該光路孔の開孔状態を検出す
るための非接触式開孔状態検出手段を具備してい
ることを特徴とする電動式露光装置。[Claims for Utility Model Registration] An annular rotating member having an optical path hole in the center and a light shielding blade for opening and closing the optical path hole, and a motor for rotating the rotating member;
An electric exposure apparatus comprising: a non-contact aperture state detection means for detecting an aperture state of the optical path hole by the light shielding blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17913686U JPS6384125U (en) | 1986-11-21 | 1986-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17913686U JPS6384125U (en) | 1986-11-21 | 1986-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384125U true JPS6384125U (en) | 1988-06-02 |
Family
ID=31121927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17913686U Pending JPS6384125U (en) | 1986-11-21 | 1986-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012247617A (en) * | 2011-05-27 | 2012-12-13 | Canon Inc | Light quantity adjustment device |
-
1986
- 1986-11-21 JP JP17913686U patent/JPS6384125U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012247617A (en) * | 2011-05-27 | 2012-12-13 | Canon Inc | Light quantity adjustment device |
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