Camera with self-timer device

• US 5,092,673 A
• Filed: 01/29/1991
• Issued: 03/03/1992
• Est. Priority Date: 02/02/1990
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Hayashi, Naohiko
• Primary Examiner(s): GRAY, DAVID M
• Application Number:
  US07/647,273
• Time in Patent Office: 399 Days
• Field of Search: 354/152, 354/238.1
• US Class Current: 396/264
• CPC Class Codes: G03B 17/40 with delayed or timed action
• CPC Class Codes: G03B 19/12 Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Abstract

In a camera provided with a self-timer device, manually selectable first and second modes are provided as a self-timer mode and, in the first mode, a mirror is moved upward just before the start of exposure after a time set by a self-timer device has been counted, while, in the second mode, exposure is started after the mirror has been moved upward and then the time set by the self-timer device has been counted.

Claims

1. A camera in which a mirror-up operation for moving a mirror upward is performed by a mirror-moving-upward mechanism, comprising:

a) a timer circuit arranged to be operated in response to a release operation signal, said timer circuit counting a predetermined time, said timer circuit having a first mode in which said mirror-up operation is performed after said predetermined time has elapsed and a second mode in which said mirror-up operation is performed at least a period of time required for said mirror-up operation before said predetermined time finishes being counted; and

b) a selection circuit for selecting said first mode or said second mode.

2. A camera according to claim 1, wherein in said second mode, said timer circuit begins to count said predetermined time after said mirror has been moved upward.

3. A camera according to claim 2, wherein said selection circuit selects one of said first and second modes by a manual operation.

4. A camera comprising:

a) a mirror-moving-upward mechanism for performing a mirror-up operation;

b) a timer circuit for counting a self-timer time;

c) a control mechanism for causing an exposure operation to start;

d) a sequence control circuit having a first mode and a second mode, wherein, in said first mode, after said timer circuit has finished counting the self-timer time, said mirror-moving-upward mechanism is actuated to perform the mirror-up operation and thereafter an exposure operation is started by said control mechanism, and in said second mode, said mirror-moving-upward mechanism is actuated a period of time required for said mirror-up operation before said timer circuit finishes counting the self-timer time, and an exposure operation is started by said control mechanism after the self-timer time has finished being counted; and

e) a selection circuit for selecting said first mode or said second mode.