JPS6434620U

JPS6434620U -

Info

Publication number: JPS6434620U
Application number: JP13026487U
Authority: JP
Priority date: 1987-08-27
Filing date: 1987-08-27
Publication date: 1989-03-02

Description

[Brief explanation of drawings]

第１図は本考案を原理的に示すブロツク図、第
２図は三脚の使用時に作動する第１のスイツチン
グ手段の一例を示す断面図、第３図は第１図をよ
り具体化した回路図、第４図は第３図の変形例を
示す回路図。１……測光部、２……フイルム感度入力部、３
……露出制御回路、４……レリーズスイツチ、５
……セルフタイマ、６……シヤツタシステム、７
……オア論理、７ａ……ナンドゲート、８……シ
ヤツタ閉鎖タイマ、８ａ，８ｄ……抵抗、８ｂ，
８ｃ……常閉接点、８ｅ……コンデンサ、８ｇ…
…コンパレータ。 Fig. 1 is a block diagram showing the principle of the present invention, Fig. 2 is a sectional view showing an example of the first switching means that operates when a tripod is used, and Fig. 3 is a circuit diagram more specific to Fig. 1. , FIG. 4 is a circuit diagram showing a modification of FIG. 3. 1...Photometering section, 2...Film sensitivity input section, 3
...Exposure control circuit, 4...Release switch, 5
...Self-timer, 6...Shutter system, 7
...OR logic, 7a...NAND gate, 8...Shutter closing timer, 8a, 8d...Resistance, 8b,
8c...Normally closed contact, 8e...Capacitor, 8g...
…comparator.

Claims

[Scope of Claim for Utility Model Registration] (1) A shutter mechanism that opens and closes the exposure aperture, an exposure control circuit that determines the appropriate exposure time corresponding to at least the brightness of the field, and an exposure that will not cause camera shake. and a shutter closing timer in which an abort time is set, and after the opening operation of the shutter mechanism starts, the shutter mechanism closes at the earlier timing of the appropriate exposure time or the exposure abort time. A camera with an anti-shake device configured to allow the camera to move, comprising a first switching means that is activated when the tripod is attached, and a second switching means that is activated when the self-timer is activated, the first switching means being activated. Or, the camera with an anti-shake device characterized in that the exposure cutoff time is shifted to a longer time side in conjunction with the operation of the second switching means. (2) In the camera with an anti-shake device according to claim 1 of the utility model registration claim, the shutter closing timer includes a CR integrating circuit and a comparison means for comparing the charge level of the CR integrating circuit with a predetermined reference level. An image stabilization device, characterized in that the resistance value of the current supply path of the CR integration circuit is switched in conjunction with the operation of the first switching means or the operation of the second switching means. with camera. (3) In the camera with an anti-shake device according to claim 1 of the utility model registration claim, the shutter closing timer includes a CR integrating circuit and a comparison means for comparing the charge level of the CR integrating circuit with a predetermined reference level. and the reference level is set as a partial pressure level of a plurality of resistors, and the partial pressure level is switched in conjunction with the operation of the first switching means or the operation of the second switching means. A camera equipped with an anti-shake device.