JPH01217435A - Camera - Google Patents

Abstract

PURPOSE:To eliminate troublesome setting operations for each shot and to provide the merits of continuous photographing at the same time by selecting in advance whether the subsequent special photographing is only for one shot or not by means of switching a control mode selecting switch. CONSTITUTION:The title camera is provided with a switching means 150 which switches a first control mode which allows to return to the specific camera photographing mode after the photographing operation is completed in the selected camera photographing mode with a second control mode which maintains at least one condition of the camera photographing mode previously selected after the photographing operation is completed. Therefore, the subsequent photographing based on the specific drive mode and stroboscopic mode can be selected in advance whether the photographing is only for one shot or not by switching the control mode selecting switch 150. Thus, the troublesome setting operations for each shot is eliminated, and at the same time, the merit of the continuous photographing is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a camera having a plurality of camera shooting modes, such as a single shooting mode, a continuous shooting mode, etc., and particularly relates to a control device thereof.

- Background of the Invention - Modern cameras are configured as electronically controlled cameras with a microcomputer at the core and peripheral circuits and equipment, and in addition to facilitating shooting operations, various functions are also provided to enable special shooting. There is. That is, FIG. 4 shows a general circuit configuration of an electronically controlled camera, and on/off signals from various operation switches are given to the microcomputer 11 as control commands. These operation switches include a contact switch 12 that responds to the operation of the release button.
13 and a contact switch 14, 1 that responds to the operation of the zoom button.
5. Various operation switches and button switches 1 for changing the shooting mode, the display on the liquid crystal display 16, and setting the photo mode
The microcomputer 11 executes various controls in response to on/off signals of these operation switches. Peripheral circuits and equipment include a photometric IC 23 and a photodiode 24 for measuring external brightness;
A shutter motor control IC 25 and a motor 26 for controlling the shutter driven and controlled by the motor, a focus lens drive motor control IC 27 and a motor 28 for driving the focus lens to the focal position, and a strobe light emission and charging control. A strobe control circuit 29 and a discharge tube 30, a focus control circuit 31, an infrared light emitting diode 32, a semiconductor device detector (PSD) 33, and a moving lens group of a zoom lens are desired. A zoom lens drive motor control circuit 34 and a motor 35 are provided to drive the zoom lens to a position where a focal length of 1 is obtained, and a film feed control circuit 36 and a motor 37 are provided to drive the film to be wound up and rewound. moreover,
The power supply circuit is equipped with a battery 38 and a power switch 39 for supplying power to peripheral circuits.

The peripheral circuits and devices mentioned above are the microcomputer 1.
In response to commands and control signals from 1, the microcomputer 11 receives measurement signals and status signals, and performs program control so that the microcomputer 11 achieves desired photographing conditions and display conditions. For example, when the contact switch 12 is turned on by operating the release button, photometry and distance measurement are controlled, and from this measurement signal, the focus lens position is controlled, the shutter speed and the necessity of strobe light emission are set, and the shutter speed and the need for strobe light emission are set. When the second stage contact switch 13 is turned on, exposure is performed by driving the shutter and controlling the flash light emission, and then the film is wound and the film winding operation display and film counter display on the display device are updated. .

Furthermore, when photographing, a single-shot mode, a quick-shot mode, and a self-shot mode are sequentially selected according to the operation of the drive mode switch 21, and their states are displayed. Furthermore, when the function mode switch 19 is operated, the characteristic special modes of multiple exposure mode, time valve mode, and interval mode are set, and one of the special shooting modes is selected. , select switch 1
When 8 is operated, the monitor change position can be selected, and by operating the adjust switch 17, data such as the number of multiple exposures, exposure time using a time valve, or interval time can be set.

Here, in the multiple exposure mode, when the single shooting mode is selected, the microcomputer 11 performs shutter control for the number of multiple exposures each time the release button is operated. In the snapshot mode, the microcomputer 11 executes multiple exposure control and continuous film frame advance control.

Problems to be Solved by the Invention By the way, in the conventional electronically controlled camera as described above,
When shooting in snapshot mode is finished, all settings such as special modes such as multiple exposure mode, time bulb mode, interval mode, self mode, etc. are canceled and the selected mode is automatically restored to single shooting mode, or Alternatively, the configuration is such that the settings in the previous snapshot mode are maintained. Therefore, in any case, the photographer cannot set the next shooting mode in advance, resulting in the following inconvenience in use. In other words, with the former circuit configuration, if you want to continue taking pictures in quick-shot mode, the mode has already been switched to single-shot mode after the previous shooting is finished, that is, after the release button is released, so you have to set the quick-shot mode again. Therefore, when taking continuous snapshots of a rapidly moving subject, there are many cases in which a shutter opportunity is missed, or a picture taken with the intention of taking a quick picture becomes a single-shot mode picture. In addition, with the latter circuit configuration, if you take a picture without checking the current shooting mode (single shot mode or not), you may inadvertently take a quick shot, and valuable film may be lost due to unintended shooting. Mistakes occur when taking photos that result in wasted images.

SUMMARY OF THE INVENTION In view of the practical problems of conventional cameras as described above, an object of the present invention is to provide a camera that allows a photographer to select in advance whether or not to continue a set shooting mode.

-Means for Solving the Object- In order to achieve this object, the present invention provides a mode selection means that can select one camera shooting mode from a plurality of camera shooting modes, and a camera selected by the mode selection means. In a camera equipped with a photographing control means for performing photographing based on the conditions of a photographing mode, a first control mode for returning to a specific camera photographing mode after the photographing operation of the selected camera photographing mode is completed; It is proposed to provide a switching means for later switching between the camera shooting mode and a second control mode that maintains at least one condition of the previously selected camera shooting mode.

One Embodiment - Hereinafter, details of an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 3 is a diagram showing the arrangement of the display device 16 and operation buttons of the camera according to the present invention. In the figure, reference numeral 12
2 is to force the strobe to fire (ON) or to fire automatically (AUTo) according to the photometry information detected by the photometer.
) or not (OFF), and 121 is a single-shot mode (S) that shoots one frame with one press of the release button.
and while the release button is pressed once,
A quick-shooting mode (C) that allows you to shoot multiple frames in succession,
Self-timer mode (SEL)
A drive mode selection button 119 selects one of the drive modes from F), a multiple exposure mode (ME) that allows multiple exposures to one frame of film, and a time valve that performs exposure using a bulb for a set time. Mode (B
Function mode selection button 11 for selecting special shooting modes: ulb) and interval mode (INTV), which shoots one frame at a time at set intervals;
Reference numeral 8 indicates each display on the shooting frame number display N or the multi-digit display TH that displays the year, month, day, hour, minute, second, etc. when one of the special shooting modes is selected by the function mode selection button. The display selection button 117 is used to select which of the displays TN+, TN2, and TN3 to change the data shown on the display, and the display selection button 118
Change buttons 131, 132, and 133 are used to change the data shown on the display selected by 3, respectively. 134, 135, and 136 respectively indicate whether the drive mode is single shooting mode (S), continuous shooting mode (C), or selfie mode (5ELF).
8, 139, and 140 respectively indicate whether the selected mode is multiple exposure mode (ME) or time bulb mode (Bulb) when one of the special shooting modes is selected.
This is an indicator that indicates whether the mode is mode or interval mode (INTV).

In the camera of this embodiment, when changing the drive mode, by operating the drive mode selection button 121, the drive mode can be changed to single shooting mode (S), quick shooting mode (C), or selfie mode (SELF) depending on the number of operations. )
, single shooting mode (S), etc., and one of the indicators 134, 135, and 136 that displays which drive mode is selected lights up according to the drive mode change. selected indicator 134 of
．． 135.136 allows the current drive mode to be known.

When shooting in a special mode, the camera shooting mode changes from normal shooting mode to multiple exposure mode, from multiple exposure mode to time bulb mode, depending on the number of operations by operating the function mode selection button 119. From time valve mode to interval mode,
The interval mode is sequentially switched to the normal shooting mode, and the indicators 138, 139, .
140 lights up to display the selected camera shooting mode. Note that in the normal mode in which photographing is not performed in the special mode, none of the indicators 13B, 139, and 140 are lit.

Further, reference numeral "150" in FIG. 3 is a control mode selection switch indicating the case where a slide switch is used, and when this control mode selection switch 150 (switching means) is in the OFF state, it selects the previously set drive mode and the strobe. Regardless of the mode, when the drive mode is switched to single shooting mode and the strobe mode is switched to automatic flash mode, and the flash mode is turned on, at least some of the conditions of the shooting mode set at the time of the previous shooting (for example, snapshot mode, strobe firing requirements) are set. The details will be described later with reference to FIG. 1.

Next, the setting operation of the multiple exposure mode, which is a typical example of special photography, will be explained. In multiple exposure photography, the multiple exposure mode is first selected by operating the function mode selection button 119. When this multiple exposure mode is selected, the number of photographed frames display N of the display device 16 changes from displaying the number of photographed film frames to two multiple exposures, which is the minimum set number of multiple exposures in the multiple exposure mode. “02” will be displayed blinking to indicate that it will be performed. In this case, the blinking display state of the number of shooting frames display N indicates that the data can be changed by operating the data change button 117, so if the data change button 117 is operated in this state, the multiple exposure mode You can set the number of multiple exposures while looking at the number of frames displayed. After completing the setting of the number of multiple exposures in the multiple exposure mode, when the display selection button 118 is operated, the number of shooting frames display N changes from a blinking display state to a lit display state, the setting operation in the multiple exposure mode is completed, and the multiple exposure Shooting in different modes is possible. In other words,
When shooting in multiple exposure mode, if single-shot mode (S) is selected as the drive mode, one exposure is made in response to one operation of the release button, and quick-shot mode (C) is selected. In this case, the set number of multiple exposures will be automatically and consecutively performed by one operation of the release button. The details of the control by the microcomputer 11 during multiple exposure photography will be explained using the flowchart of FIG. 2. When the settings have been made (step S1), wait for the first stage contact switch 12 to be turned on by operating the release button (step S2).
), when this is turned on, preparations for photographing begin, including measurement and control for automatic exposure and automatic point setting (step S3). After this,
Wait for the contact switch 13 to be turned on (step S4), and when it is turned on, perform the first @th exposure control (step S5), and subtract 1 from the set number of multiple exposures N to find the remaining number of exposures (step S6). ). It is determined whether this number of times N is zero or not (Step S7), and if it is not i, it is determined whether it is a quick shot or a single shot (Step S8). In the case of single shooting, wait for the contact switch 12 to turn off (Step S9) and return to Step S2. , waits for the next release button operation, and in continuous shooting, step S5
Return to , perform re-exposure, and repeat the exposure up to the set number of times N. When N becomes zero in step 7, multiple exposure is completed and
After waiting for the contact switch 12 to turn off (step 5io), the process returns to the main flow.

FIG. 1 shows the main flow of the microcomputer 11 after the completion of a predetermined photographing operation based on the release operation. It is checked whether there is a special mode belonging to multiple exposure mode, time valve mode, or interval mode in the conditions of , the set special mode is canceled (step 513) and the corresponding special mode is no longer displayed. Next, a check is made to see if the previous photograph was taken using a self-timer self-mode setting (step 514).
If the self mode is set, the drive mode is forcibly switched to the single shooting mode (step 515).
). After this, it is determined whether or not the control mode selection switch 150 is in the on state (step 516), but if the control mode selection switch 150 is switched to the on side, the Preparations for the next shooting are completed while the shooting mode conditions, ie, the conditions for the quick shooting mode, the necessity of using a strobe, etc., are maintained.

Therefore, in this state, the photographer can take a photo with forced flash flash or take a quick shot just by pressing the release button, just like the previous photo, and can take a photo without having to go through the trouble of making settings again. You can take the desired picture without losing anything.

Further, when the control mode selection switch 150 is in the off state, the microcomputer 11 determines that the photographer does not desire the shooting mode set in the previous shooting, and forces the drive mode to the single shooting mode (step 517). ) and switch the strobe to AUTO mode (step 518
) and complete the preparation for shooting, so the next shooting will be in the standard normal mode. Therefore, by simply turning off the control mode selection switch 150, the photographer can check whether the previous shooting was in snapshot mode or strobe OFF mode, multiple exposure mode, time valve mode, interval mode, selfie mode, etc. Even if special photography is performed, standard mode photography will be automatically performed next time, so valuable film can be prevented from being wasted due to careless photography without having to check every time special photography is performed. In addition, in the above explanation, if multiple exposure mode, time bulb mode, interval mode, or self mode was selected during the previous shooting, the reason for canceling these special modes or self mode is - This is because photographing using a mode is often done only once, and a special mode or self mode may also be maintained depending on the purpose of use of the camera.

As described above, in the configuration of the illustrated embodiment, by switching the control mode selection switch 150, it is possible to select in advance whether or not the next shooting based on the predetermined drive mode and strobe mode is a one-time shooting. This eliminates the waste of valuable film due to erroneous operation, and allows you to enjoy both the troublesome setting work each time you shoot and the advantages of continuous speed shooting.

In the above description of the embodiment, the relationship between the power switch 39 and the control mode selection switch 150 was not explained, but when the power switch 39 is turned on, regardless of the switching position of the control mode selection switch 150, If you set the drive mode to single shot mode and the flash to automatically switch to AUTO mode, when you start using it,
Shooting is always in standard mode, which prevents accidental shooting mistakes. Further, when the power switch 39 is turned off, the control mode selection switch 150 may be forcibly switched to the off side.

Effects of the Invention - As is clear from the above description, according to the present invention, it is possible to select in advance whether or not the next special photography will be a one-time photography by switching the control mode selection switch. This eliminates the waste of valuable film due to erroneous operation, and allows you to enjoy both the troublesome setting work each time you shoot and the advantages of continuous speed shooting.

[Brief explanation of the drawing]

Fig. 1 is a flowchart of the main parts of the camera according to the present invention, Fig. 2 is a flowchart of the same camera during multiple exposure shooting, Fig. 3 is a diagram showing the arrangement of the liquid crystal display device and operation buttons of the same camera, and Fig. 4 is a diagram showing the arrangement of the liquid crystal display device and operation buttons of the same camera. FIG. 2 is a configuration diagram of a control device of an electronically controlled camera. 11... Microcomputer, 150... Control mode selection switch. Patent applicant Konica Co., Ltd. Figure 1○ Figure 2N

Claims (1)

[Claims] 1) A camera equipped with a mode selection means that can select one camera shooting mode from among a plurality of camera shooting modes, and a shooting control means that causes shooting to be performed based on the conditions of the camera shooting mode selected by the mode selection means. , retains at least one condition of a first control mode that returns to a specific camera shooting mode after the shooting operation of the selected camera shooting mode ends, and a previously selected camera shooting mode after the end of the shooting operation. Second to do
A camera characterized in that it is provided with a switching means for switching between a control mode and a control mode.