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Title:
SELF-TIMER DEVICE
Document Type and Number:
Japanese Patent JPS5886528
Kind Code:
A
Abstract:

PURPOSE: To obtain a self-timer device which is improved in operability without increasing the size of constitution by reinstating the electrically set state of a self-timer through a setting member before the operation of the self-timer is completed.

CONSTITUTION: When a selector lever 22 is positioned at a mark 28, a self- timer mode is set to close a corresponding switch S1, and the output of an inverter I1 is inverted to a high level. This high-level signal sets a counter in a camera and while self-timer time is counted, an LED turns on through a control circuit according to the result of AND with a battery detection signal, etc., to display the self-timer mode. On the other hand, when said lever 22 is returned to its initial position before the operation of the self-time is completed, the output of the inverter I1 is reinverted to the low level and while a self- timer counter is reset, the LED turns off to initialize the self-timer without double operation including a battery check. Thus, a self-timer device having excellent operability is obtained without increasing its constitution.


Inventors:
SHINODA NOBUHIKO
SAKURADA NOBUAKI
KAWAMURA MASAHARU
ITOU TADASHI
ITOU FUMIO
MURAKAMI HIROYASU
Application Number:
JP19450882A
Publication Date:
May 24, 1983
Filing Date:
November 08, 1982
Export Citation:
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Assignee:
CANON KK
International Classes:
G03B9/64; G03B17/40; (IPC1-7): G03B7/091; G03B9/64; G03B15/03; G03B17/14
Domestic Patent References:
JPS4834568A1973-05-19
JPS502806A1975-01-13
JPS4955324A1974-05-29
JPS50109723A1975-08-29
JPS4745007A
JPS4874838A1973-10-09
JPS4858741U1973-07-26
JPS4827726A1973-04-12
JPS50115030A1975-09-09
Attorney, Agent or Firm:
Marushima Giichi