JPS6094635U

JPS6094635U - Strobe photography synchronization device

Info

Publication number: JPS6094635U
Application number: JP1983186030U
Authority: JP
Inventors: 隆紀小平; 全江川
Original assignee: キヤノン株式会社
Priority date: 1983-12-01
Filing date: 1983-12-01
Publication date: 1985-06-27

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

[Brief explanation of drawings]

第１図は本考案の実施例に係るシャッタの斜視図、第２
図は同シャッタの要部平面図、第３図は同実施例におけ
るフォトインクラブターの出力の模式図、第４図は同実
施例におけるスト、ロボ同調回路のブロック図、第５図
は改善されていないフォトインタラプタ−出力の例示図
、第６図ａおよびｂは平面反射板および凸面反射板の場
合におけるフォトインタラプタ−の投受光の関係を示す
模式図である。１・・・シャッタ地板、２・・・ロータ、３・・・開き
レバー、４・・・前ヨーク、５，６・・・マグネット、
７川後ヨーク、訃・・羽根受は板、９，１０・・・シャ
ッタ羽根、１２・・・測光素子、１３・・・反射板、１
４・・・フォトインタラプタ−１１５・・・開きバネ、
１６・・田−タバネ、１７・・・ライトガイド、１８・
・・羽根押え、３０・・・波形整形回路、３１・・・カ
ウンター、３２・・・比較回路、３３・−・演算回路、
３４・・・フィルム感度設定回路、３５・・・トリガー
回路、３６・・・ストロボ回路、３７・・・ラッチ回路
、３８・・・制御回路、３９・・・測光回路、４０・・
・ロニタ駆動回路、４１・・・測距回路。Fig. 1 is a perspective view of a shutter according to an embodiment of the present invention;
The figure is a plan view of the main parts of the shutter, Figure 3 is a schematic diagram of the output of the photo ink clubter in the same embodiment, Figure 4 is a block diagram of the robot tuning circuit in the same embodiment, and Figure 5 is an improvement. FIGS. 6a and 6b, which are illustrative diagrams of the output of a photointerrupter that are not shown, are schematic diagrams showing the relationship between light emitted and received by the photointerrupter in the case of a flat reflector and a convex reflector. 1... Shutter base plate, 2... Rotor, 3... Opening lever, 4... Front yoke, 5, 6... Magnet,
7 Back yoke, tail...Blade holder is a plate, 9,10...Shutter blade, 12...Photometering element, 13...Reflector, 1
4...Photo interrupter-115...Opening spring,
16... Tabane, 17... Light guide, 18...
... Feather presser, 30 ... Waveform shaping circuit, 31 ... Counter, 32 ... Comparison circuit, 33 ... Arithmetic circuit,
34... Film sensitivity setting circuit, 35... Trigger circuit, 36... Strobe circuit, 37... Latch circuit, 38... Control circuit, 39... Photometry circuit, 40...
- Ronita drive circuit, 41... distance measuring circuit.

Claims

[Scope of utility model registration request]

A photo ink converter having a light emitting part and a light receiving part is installed to face a series of a plurality of openings provided in a shutter blade that also serves as an aperture, and a reflecting plate is provided to reflect light from the light emitting part to the light receiving part. installed, and as the shutter blade moves, the light emitting part reflects off the reflector and enters the light receiving part.
In a strobe photography synchronization device that performs automatic flash photography by controlling the timing of strobe light emission according to the position of the shutter blade detected from the output of the photo ink clubter caused by successive intermittent openings, the reflector is A strobe photography synchronization device characterized in that it is formed in a curved surface that is convex toward the photointerrupter side.