JP2844714B2 - Camera self-timer shooting control device - Google Patents

Description

The present invention relates to a self-timer shooting control device for a camera having a plurality of self-timer modes.

B. Prior Art There is known a camera capable of so-called self-timer photographing, in which time measurement for a predetermined time is started when a release switch is turned on and a shutter release is performed after the time measurement is completed.
In addition, a camera capable of double self-timer photographing in which time measurement is started again after the first self-timer photographing and photographing is again performed after the end of special counting is already known.

As described above, in a camera capable of performing the single self-timer photographing in which the self-timer photographing is performed only once and the double self-timer photographing, for example, the camera becomes ready for photographing when a main switch such as a power switch is turned on.
Thereafter, a single self-timer mode in which the self-timer switch is operated once is set, and thereafter, when the self-timer switch is further operated, the double self-timer mode is set.

C. Problems to be Solved by the Invention Some photographers perform double self-timer shooting more frequently than single self-timer shooting. However, in the above-described camera, since the setting order of the self-timer mode is fixed, when performing double self-timer shooting, the self-timer switch must be operated twice after the main switch is turned on. Therefore, it is inconvenient for a person who frequently performs double self-timer shooting.

A technical object of the present invention is to set a self-timer mode most preferred by a photographer without performing a troublesome operation.

D. Means for Solving the Problems To be described with reference to FIG. 1 which is a claim correspondence diagram, the present invention provides an operation member 101 operated to select any one of a plurality of self-timer modes, and a self-timer command. In response to setting a predetermined initial self-timer mode, and subsequently operating the operation member 101, the setting means 102 sequentially changes and sets the self-timer mode each time the operation member 101 is operated, and The present invention is applied to a self-timer photographing control device of a camera including a photographing unit 103 that performs self-timer photographing according to a self-timer mode. Then, a counting means 104 for counting which self-timer mode has been used and how many times has been used, and a self-timer mode having the largest number of times of use are selected from the counting result of the counting means 104, and the self-timer mode is set to the predetermined initial self-timer. An initial mode determining means 105 for setting a timer mode is provided, thereby solving the above technical problem.

E. Action The counting means 104 counts how many self-timer modes have been used, and the initial mode determination means 105
The self-timer mode with the largest number of uses is selected from the counting result of the counting means 104, and the self-timer mode is set as a predetermined initial self-timer mode. Thereafter, when a self-timer command is output, the initial self-timer mode is set. That is, the self-timer mode most frequently used in the past is set first.

F. Embodiment An embodiment of the present invention will be described with reference to FIGS.

2, a display circuit 2 and an exposure control circuit 3 are connected to a control circuit 1, and the display circuit 2
Is connected to a liquid crystal display device 10 (provided on the surface of the camera body) as shown in FIG. The display circuit 2 responds to a display signal from the control circuit 1 to control the liquid crystal display device 10.
, A film count value 11, a battery remaining amount 12, and marks 13a and 13b indicating a self-timer mode are displayed. The exposure control circuit 3 drives a diaphragm and a shutter in response to a command from the control circuit 1 to perform photographing.

The control circuit 1 has a 3
Two manual switches SW1 to SW3 are connected. switch
SW1 is a release switch, and the control circuit 1 activates the above-described exposure control circuit 3 when the switch SW1 is turned on to perform photographing. The switch SW2 is a self-timer switch, and commands the setting, change, and release of the self-timer mode. The switch SW3 is, for example, a main switch such as a power switch.
When the camera is turned on, the camera becomes ready for shooting. That is, when the switch SW3 is turned off, photographing is not performed even if the release switch SW1 is operated.

Next, self-timer shooting in the present embodiment will be described.

In the camera of this embodiment, a single self-timer mode and a double self-timer mode can be set. The single self-timer mode is a normal self-timer mode in which a predetermined time is measured when the release switch SW1 is turned on, and thereafter, shooting is performed. The double self-timer mode is a mode in which the clocking and photographing for a predetermined time are performed with the turning on of the switch SW1, and then the clocking and photographing for the predetermined time are performed again. That is, the self-timer shooting is performed twice consecutively. Here, the above time measurement is performed by a timer provided in the control circuit 1.

The setting order of each self-timer mode at the time of manufacturing the camera is as follows.

That is, when the main switch SW3 is turned on from the off state, the normal photographing mode in which the self-timer photographing is not performed is set in the control circuit 1, and at this time, the display shown in FIG. You. Next, when the self-timer switch SW2 is turned on once, a self-timer command is output to set the single self-timer mode, and the liquid crystal display device 10 shows the single self-timer mode as shown in FIG. 3 (b). The mark 13a is displayed. Here, the self-timer mode set by the first ON operation of the self-timer switch SW2 is referred to as an initial self-timer mode, and a signal for setting the self-timer mode from the normal shooting mode is a self-timer command.

In this state, when the switch SW2 is turned on once more, the double self-timer mode is set, and the liquid crystal display device 10
, A mark 13b indicating the double self-timer mode is displayed as shown in FIG. 3 (c). Thereafter, when the switch SW2 is turned on once more, the mode returns to the normal photographing mode, and the display state is as shown in FIG.

The above is the mode setting order determined at the time of manufacturing the camera. The control circuit 1 changes the setting order according to the number of times of use of each self-timer shooting as described later.

The control procedure by the control circuit 1 will be described with reference to the flowcharts of FIGS.

When the release switch SW1 is turned on when the main switch SW3 is turned on, the program shown in FIG. 4 is started, and photographing is first performed in step S1. That is, one of normal shooting, single self-timer shooting, and double self-timer shooting is performed according to the set mode.

Next, in step S2, it is determined whether or not the shooting in step S1 is a self-timer shooting (one of single self-timer shooting and double self-timer shooting). If step S2 is denied, that is, if normal shooting, the process is terminated.If affirmative, the process proceeds to step S3 to determine which self-timer shooting, and then the determination result in step S4 The count value Ns or Nd of the number of times of shooting is counted up according to. That is, the control circuit 1 stores count values Ns and Nd indicating how many times each self-timer shooting has been performed. If the shooting in step S1 is a single self-timer shooting, Ns is stored. In the case of timer shooting, Nd is advanced by “1”.

Here, it is defined that the self-timer mode is used when a certain self-timer mode is photographed. Note that the count values Ns and Nd are both set to “0” when the camera is manufactured, and these values are set by the main switch SW.
It shall be preserved even after turning off 3.

Next, the process proceeds to step S5, and it is determined whether or not the total value of Ns and Nd, that is, the total number TN of the self-timer shootings has reached a predetermined value (for example, 20 times). If step S5 is denied, the process ends, and the process proceeds to step S6, which is affirmed. In step S6, the count values Ns and Nd are compared, and if Ns> Nd is determined in step S7, the single self-timer mode is set to the above-described initial self-timer mode in step S8, and if Ns ≦ Nd is determined, in step S9 Let the double self-timer mode be the initial self-timer mode.

According to the above, how many times the self-timer mode has been used is counted each time the self-timer shooting is performed, and when the total value of the number of times of use of each self-timer mode reaches the predetermined value, which self-timer mode is used. It is determined whether the number of times of use is large, and the self-timer mode used frequently is set as the initial self-timer mode.

FIG. 5 shows a process after the initial self-timer mode is determined in the process of FIG.

When the main switch SW3 is turned on from off, this program is started. First, in step SW21, the normal photographing mode is set, and a display signal is output to the display circuit 2 to display the image shown in FIG. Display). Next, in step S22, it is determined whether or not the self-timer switch SW2 is on. If the result is negative, the process waits until the result is affirmative. Is set, the mark 13a or 13b indicating the mode is displayed on the liquid crystal display device 10, and the process proceeds to step S24.

In step S24, it is determined whether the self-timer switch SW2 has been turned on from off, and if negative, the process waits until affirmative, and if affirmative, the next mode is set in step S25, and The display is performed, the process returns to step S24, and the processes of steps S24 and S25 are repeated.

According to the above procedure, the normal mode is set when the main switch SW3 is turned on, and then the self-timer switch is set.
When SW2 is turned on, the mode of the initial self-timer most frequently used in the past among the self-timer modes is also set. That is, for example, when a certain photographer is performing double self-timer shooting rather than single self-timer shooting, the first on-double self-timer mode of the self-timer switch SW2 is set, and thereafter, when the switch SW2 is turned on, the single self-timer mode is set. The mode will be set. As a result, the self-timer shooting desired by the photographer can be performed without performing a troublesome operation, and the usability of the camera is improved.

In the configuration of the above embodiment, the self-timer switch SW2 controls the operation member 101, the control circuit 1 and the exposure control circuit 3 control the photographing unit 103, and the control circuit 1 controls the setting unit 102, the counting unit 104, and the initial mode determining unit 105. Configure each.

In the above description, when the total number of times of the self-timer shooting reaches the predetermined number, the number of uses of each self-timer mode is compared to determine the initial self-timer mode. (For example, 15 times), the mode may be set as the initial self-timer mode. Alternatively, the initial self-timer mode may be determined in accordance with the number of times each self-timer mode is used each time the self-timer shooting is performed without providing a predetermined number of times. The setting order of the self-timer mode set by operating the switch SW2 after the initial self-timer mode is set is arbitrary.

Furthermore, when the switch SW2 is turned on in the normal mode, a self-timer command is output to set the initial self-timer mode, and thereafter, the self-timer mode is changed every time the switch SW2 is operated. A switch for setting the timer mode and a switch for changing the mode thereafter may be separate switches.

Furthermore, an example in which two self-timer modes, that is, a single self-timer mode and a double self-timer mode, can be set has been described. The present invention can be applied to a camera having the self-timer mode. Further, the number of times of the self-timer photographing is only one, but a plurality of self-timer modes having different time counting times may be used.

G. Effects of the Invention According to the present invention, the number of times of use of each self-timer mode is counted, and the self-timer mode with the largest number of uses is set as the above-mentioned initial self-timer mode. The self-timer mode, which is used most by the user, is set, and the usability of the camera is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram corresponding to claims. 2 to 5 show an embodiment of the present invention, FIG. 2 is a block diagram showing the overall configuration of a self-timer photographing control device according to the present invention, FIG. 4 and 5 are flowcharts showing the processing procedure. 1: control circuit, 2: display circuit, 3: exposure control circuit, 101: operation member 102: setting means, 103: photographing means 104: counting means 105: initial mode determination means SW1: release switch SW2: self-timer switch SW3: main switch

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koichi Daitoku 1-6-3 Nishioi, Shinagawa-ku, Tokyo Inside Nikon Oi Works Co., Ltd. (72) Inventor Hideya Inoue 1-3-6 Nishioi, Shinagawa-ku, Tokyo No. Nikon Oi Mfg. Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 9/64

Claims (1)

(57) [Claims] An operation member operated to select one of a plurality of self-timer modes, a predetermined initial self-timer mode is set in response to a self-timer command, and thereafter the operation member is operated. Then, the self-timer shooting of a camera comprising: setting means for sequentially changing and setting the self-timer mode each time the operation is performed; and shooting means for performing self-timer shooting according to the set self-timer mode. In the control device, counting means for counting which self-timer mode has been used and how many times, and selecting the self-timer mode having the largest number of uses from the counting result of the counting means, and setting the self-timer mode to the predetermined initial value. An initial mode determining means for setting a self-timer mode. Ruff timer shooting control device.