JP3368612B2 - camera - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera provided with a display for selectively displaying data and the number of shot frames on one display unit. 2. Description of the Related Art A calendar clock which is driven by a battery and outputs date and time clock data, and the clock data and the number of photographed frames are selectively displayed on one display unit. 2. Description of the Related Art There is known a camera provided with a display device for displaying an image. However, in such a conventional camera, when the battery is replaced, the data in the calendar clock is erased and initialized at a predetermined date and time. If the user forgets to reset the data, there is a problem that, for example, an incorrect photographing date and time is recorded on the film by the data imprinting device. [0004] It is an object of the present invention to provide a battery replacement method.
An object of the present invention is to provide a camera which prompts a user to reset a calendar clock. [0005] The present invention will be described with reference to FIG. 1 which is a claim correspondence diagram. The present invention is driven by a battery 100 and outputs clock data of date and time. The present invention is applied to a camera provided with a clock 101 for performing the operation and a display 102 for selectively displaying the clock data of the clock 101 and the number of photographed frames. Then, an exchange detecting means 103 for detecting the exchange of the battery 100 and this exchange detecting means 1
03 , when replacement of the battery 100 is detected ,
The specified clock data is set to the clock data of the total 101 and displayed.
The clock data is displayed on the indicator 102, and the clock data is displayed.
Display control means 104 for setting a correction mode for correcting data , thereby achieving the above object. When the replacement of the battery 100 is detected, the clock
Set and display predetermined clock data for clock data 101
The clock data is displayed on the device 102 and the clock data is displayed.
Set the correction mode for correcting the data . Thus, every time the battery 100 is replaced, the watch 10 is provided to the user.
A reset of 1 is prompted. FIG. 2 is a block diagram showing the configuration of one embodiment. The microcomputer 1 has a calendar clock 1t that outputs clock data of date and time, and executes various control programs to be described later to perform sequence control of the camera and various calculations. The microcomputer 1 is connected to a liquid crystal display 2, a lens barrel driving circuit 3, a photometric circuit 4, a distance measuring circuit 5, a winding circuit 6, a date imprinting circuit 7, and switches 9 to 15. The liquid crystal display 2 is installed on the upper surface of the camera body, and displays information on photographing such as various photographing modes and imprint data in accordance with a display signal from the microcomputer 1. Lens drive circuit 3
Moves the photographing lens barrel from the retracted position to the photographing position by the motor 8 in accordance with a drive signal from the microcomputer 1. The photometric circuit 4 measures the luminance of the subject according to a command signal from the microcomputer 1 and outputs a photometric value to the microcomputer 1. The distance measuring circuit 5 measures a shooting distance to a subject in accordance with a command signal from the microcomputer 1 and outputs a measured distance value to the microcomputer 1. The winding circuit 6 winds and rewinds the film according to a film feed signal from the microcomputer 1. The date imprinting circuit 7 imprints various data such as date on a film in accordance with an imprinting signal from the microcomputer 1. In this embodiment, there are a selection mode and a correction mode as the date imprinting modes.
Select one of the date imprint modes from "Month / Year", "Sun / Month / Year", "Date and Time", "OFF (No imprint)", and correct the date and time clock data in the correction mode It shall be. The battery 17 includes a microcomputer 1, a clock 1t , a lens barrel driving circuit 3, a photometric circuit 4, a distance measuring circuit 5, a winding circuit 6, and a date imprinting circuit 7.
Power all circuits and equipment of the camera, such as. A switch 9 is a main switch for starting various operations of the camera, and a switch 10 is a flash switch for selecting various flash photographing modes.
In this embodiment, it is assumed that there are five types of flash photographing modes: automatic light emission, red-eye reduction, light emission inhibition, forced light emission, and slow synchro. The flash switch 10 is also used as a switch for switching a block to be corrected in a clock data correction mode described later.
The switch 11 is a mode switch for selecting a shooting mode. In this embodiment, the normal shooting mode, the distant view mode,
It has a single self-timer mode and a double self-timer mode. The mode switch 11 is also used as a switch for correcting data in a clock data correction mode described later. The switch 12 is a half-press switch that is turned on when a release button (not shown) is half-pressed, and the switch 13 is a release switch that is turned on when the release button is fully pressed. A switch 14 is turned off when the photographing lens barrel is in the retracted position, and turned on when the photographing lens is in the photographing position. A switch 15 is a battery cover switch that is turned on when the battery cover is opened and turned off when the battery cover is closed. is there. FIGS. 3 and 4 are views showing examples of display on the liquid crystal display 2. FIG. FIG. 3 shows the number of shot frames in the upper part of the display 2,
The lower part shows an example in which a flash photography mode, a self-timer mode, a date imprint mode (PRINT), a remaining battery level, and the like are displayed. FIG. 4 shows an example in which only the date (year, month, day) is displayed in the upper part. In the upper part of the liquid crystal display 2, the display of the number of photographed frames and the date display are alternatively performed. When the date imprint mode is set, the PRINT mark is turned on, and when the date imprint mode is prohibited, the PRINT mark is turned off. FIG. 5 is a flowchart showing a main program of the microcomputer 1. The operation of the embodiment will be described with reference to this flowchart. When the battery cover switch 15 changes from ON to OFF and the battery cover is closed, the microcomputer 1 proceeds to step S106,
If the battery cover is not opened or closed, step S101
Proceed to. When the battery cover is closed, a date initialization processing routine shown in FIG. 6 is executed in step S106. Next, in step S101, it is determined whether or not the main switch 9 has been turned on. If the main switch 9 has been turned on, the process proceeds to step S107; otherwise, the process proceeds to step S102. When the main switch 9 is turned on, the process proceeds to step S107 in FIG.
The main switch processing routine shown in FIG. In step S102, it is determined whether or not the flash switch 10 has been turned on. If the flash switch 10 has been turned on, the process proceeds to step S108; otherwise, the process proceeds to step S103. When the flash switch 10 is turned on, a flash switch processing routine shown in FIGS. 8 and 9 is executed in step S108. In step S103, the mode switch 11
Is turned on or not, and if turned on, step S
Go to 109, otherwise go to step S104. When the mode switch 11 is turned on, step S
At 109, the mode switch processing routine shown in FIG. 10 is executed. Further, in step S104, the half-press switch 1
It is determined whether or not 2 has been turned on, that is, whether or not the release button has been half-pressed. If the release button has been half-pressed, the process proceeds to step S110; otherwise, the process proceeds to step S105. When the release button is half-pressed, in step S110 FIG.
The photographing processing routine shown in FIGS. In step S105, it is determined by the lens barrel position detection switch 14 whether or not the photographing lens barrel is at the retracted position. If the lens barrel is at the retracted position, the process is terminated. Otherwise, the process returns to step S100 to repeat the above process. Next, the details of each process will be described with reference to FIGS. FIG. 6 shows a date initialization processing routine. The microcomputer 1 executes this processing routine when the battery cover is closed. First, in step S110, it is determined by the lens barrel position detection switch 14 whether or not the photographing lens barrel is in the retracted position. If the lens barrel is in the retracted position, the process proceeds to step S112;
Proceed to. In step S111, the lens barrel driving circuit 3 is controlled to move the taking lens barrel to the retracted position.
Proceed to 2. In step S112, the date imprint mode is set to the OFF mode to prohibit date imprint. When the date imprint mode is prohibited, the date is displayed on the upper stage of the liquid crystal display 2 as shown in FIG. In the following step S113, a predetermined date is set for the date. In this embodiment, it is set to '93 .1.1 '. Step S114
Then, a predetermined time is set as the time. In this embodiment, 0
Set the hour to 0 minutes. In step S115, time measurement of the date and time is started. In step S116, a correction mode flag is set, and the flow advances to step S302 in FIG. FIG. 7 shows a main switch processing routine. The microcomputer 1 executes this processing routine when the main switch 9 is turned on. First, in step S201, it is determined by the lens barrel position detection switch 14 whether or not the photographing lens barrel is in the retracted position. If the lens barrel is in the retracted position, the process proceeds to step S202. If not, the process proceeds to step S205. When the taking lens barrel is in the retracted position, the correction mode flag of the clock data is released in step S202, and then the barrel driving circuit 3 is released in step S203.
To move the taking lens barrel to the taking position. Next, the process proceeds to step S204, and the display on the liquid crystal display 2 is switched from the date display shown in FIG. 4 to the shooting mode display shown in FIG. Thus, the number of frames to be photographed is displayed in the upper part of the display 2. In step S209, it is determined whether the OFF mode is set as the date imprinting mode. If the OFF mode is set, step S210 is performed.
And turn off the PRINT mark on the display 2 and turn it off.
If the mode has not been set, the process proceeds to step S211 to turn on the PRINT mark on the display 2. Thereafter, the process proceeds to step S207, and when the main switch 9 is turned off, the process returns to the main program. If it is determined in step S201 that the photographing lens barrel is not at the retracted position, the lens barrel driving circuit 3 is controlled to move the photographing lens barrel to the retracted position at step S205, and the flow advances to step S206. In step S206, the display on the display 2 is changed from the photographing mode display shown in FIG.
After the display is switched to the date display shown in FIG. Thus, the date or time is displayed in the upper part of the display 2. In step S207, the main switch 9
When is turned off, return to the main program. FIGS. 8 and 9 show a flash switch processing routine. The microcomputer 1 executes this processing routine when the strobe switch 10 is turned on. First, in step S301, the lens barrel position detection switch 1
It is determined whether or not the photographing lens barrel is at the retracted position according to 4, and if it is at the retracted position, the process proceeds to step S302, and if it is not at the retracted position, the process proceeds to step S310. If the photographing lens barrel is not at the retracted position, the flash photographing mode is switched in step S310. As shown in FIG. 13, if the current flash shooting mode is the automatic flash mode, the mode is switched to the red-eye reduction mode. If the current flash mode is the red-eye reduction mode, the mode is switched to the flash inhibition mode. If the mode is the flash mode, the mode is switched to the slow sync mode. If the mode is the slow sync mode, the mode is switched to the automatic mode. At this time, the flash shooting mode mark on the liquid crystal display 2 is turned on and off according to the switched flash shooting mode. Thereafter, the flow advances to step S311 to return to the main program when the flash switch 10 is turned off. If it is determined in step S301 that the lens barrel is in the retracted position, the flow advances to step S302 to switch the correction block of the clock data, and it is determined whether or not the correction mode has already been entered. If yes, go to step S312; otherwise, go to step S303. The fact that the correction mode has not been entered is the selection mode, and the flag A is set in step S303 to store that this is the first operation of the flash switch 10. Next, proceeding to step S304, a 2-second timer is started, and the state of the flash switch 10 is determined in step S305. If you leave the flash switch 10 is turned on the process proceeds to step S306, the process proceeds to step S317 in FIG. 9, if off. Step S306
It is determined whether or not the timer has expired, and if the time has expired, the process proceeds to step S307; otherwise, the process returns to step S305. In step S307, a correction mode flag is set, and the flow advances to step S308.
Blink the left segment of the upper row of. Then, the process returns to the main program. The date and time data on the liquid crystal display 2 are displayed in three blocks of upper left, center, and right, and each block is displayed in two-digit decimal display. In the clock data correction mode, the correction is performed in the order of the left block, the center block, and the right block.
When entering the correction mode, the left block is blinked to indicate that the left block can be corrected. For example, if the selection mode is "year, month, day", "year" will be the left block,
“Month” is displayed in the center block, and “Day” is displayed in the right block. In the correction mode, the “year” data of the left block flashes first to indicate that correction is possible. If the correction mode has already been entered in step S302, it is determined in step S312 whether or not the upper right block of the liquid crystal display 2 is blinking. The fact that the right block is blinking means that the correction of the clock data of all blocks has already been completed.
At 314, the blinking display of the liquid crystal display 2 is terminated, and at the next step S315, the correction mode flag of the clock data is released to exit the correction mode. Thereafter, when the flash switch 10 is turned off in step S316, the process returns to the main program. On the other hand, when it is determined in step S312 that the right block is not blinking, the block to be corrected is switched in step S313. That is, if the left block is currently blinking, the blinking is stopped and the central block is blinked. If the central block is blinking, the blinking is stopped and the right block is blinked. Then, step S3
If the flash switch 10 is turned off at 16, the program returns to the main program. In step S305, the flash switch 10
There proceeds to step S317 of FIG. 9 Once off, the flag A
Is set (1). Flag A
Has been reset (0), it is the second or subsequent operation of the strobe switch 10, and the flow advances to step S318 to proceed to step S318.
Start the second timer. On the other hand, if the flag A is set (1), this is the first operation of the strobe switch 10, and the flow advances to step S319 to start the 2-second timer. Next, the process proceeds to step S320, where the state of the flash switch 10 is determined. Strobe switch 10
If is turned on, the process proceeds to step S321; otherwise, the process proceeds to step S323. Strobe switch 10
If the second operation is performed within two seconds from the first operation, the flag A is reset (0) in step S321 and the process proceeds to step S322, where the display mode selection mode of the date imprint mode is entered, and the display is performed. A form switching process is performed. FIG. 14 shows the order of switching the display mode in the date imprint mode. In the date display mode selection mode, the display mode is switched to the "month, day, year" display mode if the "year, month, day" display mode is selected, and the "day, month, year," display mode is selected if the "month, date, year" display mode is selected. The display format is switched to the display format of "year", and thereafter, the display format is sequentially switched in the order shown in FIG. After the first operation of the strobe switch 10,
If the second operation is not performed after waiting for 2 seconds, step S
At 323, the main switch 9, the lens barrel position detection switch 14
Then, the state of the battery cover switch 15 is determined. If any of the switches is turned on, the process returns to the main program to perform a process corresponding to the operated switch. If any of the switches remains off, the process proceeds to step S324. It is determined whether or not the timer started in step S318 or S319 has timed out. If the time has expired, the process returns to the main program, and if not, the process returns to step S320. FIG. 10 shows a mode switch processing routine. The microcomputer 1 executes this processing routine when the mode switch 11 is turned on. Step S
In 401, it is determined whether or not the photographing lens barrel is in the retracted position by the lens barrel position detection switch 14. If it is in the retracted position, the process proceeds to step S402, and if it is not in the retracted position, the process proceeds to step S406. When the photographing lens barrel is not at the retracted position, a photographing mode switching process is performed. In step S406, as shown in FIG. 15, if the distant view mode is currently set, the mode is switched to the single self-timer mode, and if the single self-timer mode is set, the mode is switched to the double self-timer mode. If the double self-timer mode is currently set, the mode is switched to the normal shooting mode, and if the normal shooting mode is set, the mode is switched to the distant view mode. At this time, a distant view mark on the liquid crystal display 2 according to the switched shooting mode,
Turns on and off the single self-timer mark and double self-timer mark. When the mode switch 11 is turned off in step S407 after switching the shooting mode, the process returns to the main program. On the other hand, when the lens barrel is in the retracted position, the flow advances to step S402 to correct the clock data, and it is determined whether or not the camera is already in the correction mode. If the mode is not the correction mode, the process proceeds to step S404, and waits until the mode switch 11 is turned off. When the mode switch 11 is turned off, the process returns to the main program. On the other hand, if it has already entered the correction mode, the process proceeds to step S403 to correct the clock data. That is, 1 is added to the data of the blinking block among the upper left block, the center block, and the right block of the liquid crystal display 2. For example, if the display mode is "year / month / day"
In the case of, when “94” is set in “Year” of the left block and “94” is blinking, 1 is added to “94” and switched to “95”, and the blinking display is continued. . Thereafter, when the mode switch 11 is turned off in step S404, the process returns to the main program. FIGS. 11 and 12 are flowcharts showing the photographing processing routine. When the half-press switch 12 is turned on, the microcomputer 1 executes this control program. In step S501, it is determined by the lens barrel position detection switch 14 whether or not the photographing lens barrel is in the collapsed position. If the lens is in the collapsed position, photographing cannot be performed, and the program returns to the main program. Proceeding to S518 and thereafter, the photographing process is performed. Step S5
At 18, the upper stage of the liquid crystal display 2 is switched from the frame number display to the date display. In step S502, the photometric circuit 4 is controlled to measure the luminance of the subject. In step S503, the distance measuring circuit 5 is controlled to measure the shooting distance. Next, step S5
In 04, it is determined whether or not the strobe light is necessary based on the subject luminance detected in the above step. In the automatic light emission mode, when the detected luminance is equal to or less than a predetermined value, it is determined that flash photography by a strobe is necessary. In the light emission prohibition mode, the strobe light is not emitted regardless of the detected luminance. Further, in the forced light emission mode, the strobe light is emitted regardless of the detected luminance. If it is determined in step S504 that strobe light emission is necessary, step S516 is performed.
The process proceeds to step S505 if not necessary. At the time of flash photography by flash emission, it is determined in step S516 whether or not charging of the flash has been completed. If the charging has been completed, the flow proceeds to step S505, and if not, the flow proceeds to step S517. If the charging of the strobe is not completed, the flow advances to step S521 after the half-press switch 12 is turned off in step S517, and the upper stage of the liquid crystal display 2 is switched from the date display to the frame number display. Return to the program and do not shoot. On the other hand, when the flash photography by the strobe is not performed, or when the charging of the strobe is completed and the preparation for the flash photography is completed, the release switch 1 is set in step S505.
The state of No. 3 is determined, and if the switch is on, the process proceeds to step S519 in FIG. 12; if not, the process proceeds to step S50.
Proceed to 6. If the shutter has not been released, the state of the half-press switch 12 is determined in step S506.
If the half-press switch 12 remains on, step S5
Returning to step S05, when the half-press switch 12 is turned off, the process proceeds to step S520. In step S520, the upper stage of the liquid crystal display 2 is switched from the date display to the frame number display, and the process returns to the main program. When the shutter is released, FIG.
In the step S519, the upper stage of the liquid crystal display 2 is switched from the date display to the frame number display. In the following step S507, it is determined whether or not the self-timer mode is set. If in the self-timer mode, the flow advances to step S508 to wait for 10 seconds. Step S5 if not in the self-timer mode
Skip to step S509 and proceed to step S509. In step S509, the taking lens is driven by a lens driving device (not shown) based on the taking distance detected in the above step. In the following step S510, the shutter is opened and closed to perform exposure. At this time, in the case of flash photography using a flash, the flash is emitted. As soon as the flash photography with the flash is completed, charging of the flash is started for the next flash photography. In step S511, the photographing lens is returned to the initial position by the lens driving device, and the process proceeds to step S511A. It is determined whether or not date imprinting is OFF. If not, the process proceeds to step S512 and is set by the data imprinting circuit 7. Is transferred to the film. Further, after the film is wound by the winding circuit 6 in step S513, the film is wound in step S51.
At 4, wait until the half-press switch 12 is turned off, and when it is turned off, return to the main program. As described above, when the replacement of the battery is detected, the date is displayed on the display, so that every time the battery is replaced, the user is prompted to reset the calendar clock, and the clock date is reset. There is no possibility of forgetting to reset the data and recording the wrong shooting date and time. The types and contents of the photographing mode, the strobe photographing mode and the data imprinting mode are not limited to the above-described embodiment. In the above embodiment, the case where the number of switches for setting the photographing function is two has been described. However, the present invention can be applied to the case where the number of switches is three or more. Further, in the above-described embodiment, the date imprinting was performed before the film was wound. However, the timing of the data imprinting is not limited to the above-described embodiment, and a plurality of LEDs emit light while feeding the film. Alternatively, the data may be imprinted in the form of dots. In the above-described embodiment, the data imprinting circuit for optically recording the photographing date and time on the film has been described as an example. However, a camera for recording the photographing date and time magnetically on a film or a recording medium is described. The present invention can also be applied. In the above-described embodiment, an example has been shown in which power is supplied from a single battery to all devices incorporated in the camera, including the calendar clock, but separate devices are provided for the calendar clock and other devices. The present invention can also be applied to a camera having the above-mentioned battery. In this case, the replacement of the battery of the calendar clock is detected, and after the replacement of the battery, the recording of the shooting date and time may be prohibited until the calendar clock is reset. In the configuration of the above embodiment, the battery
Reference numeral 17 designates a battery, clock 1t constitutes a clock, battery cover switch 15 constitutes replacement detection means, and microcomputer-1 and the program shown in FIG. 6 constitute display control means. As described above, according to the present invention, when the replacement of the battery is detected , the time data is stored in the clock data of the clock.
Set the clock data and display the clock data on the display.
Correction mode for correcting clock data
So made to be set, the battery - re-setting of the calendar clock is prompted to the user in time to replace the, watch de - there is no such thing as to the shooting date and time that was accidentally forgot to re-set of data.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view corresponding to a claim. FIG. 2 is a block diagram showing a configuration of one embodiment. FIG. 3 is a diagram showing a display example of a liquid crystal display. FIG. 4 is a diagram showing another display example of the liquid crystal display. FIG. 5 is a flowchart showing a main program of the microcomputer. FIG. 6 is a flowchart showing a data initialization routine.
G. FIG. 7 is a flowchart showing a main switch processing routine. FIG. 8 is a flowchart showing a strobe switch processing routine. FIG. 9 is a flowchart showing a strobe switch processing routine. FIG. 10 is a flowchart showing a mode switch processing routine. FIG. 11 is a flowchart showing a photographing processing routine. FIG. 12 is a flowchart illustrating a photographing processing routine. FIG. 13 is a diagram showing a switching order of a strobe photographing mode. FIG. 14 is a diagram showing the order of switching the imprint data selection mode. FIG. 15 is a diagram showing the order of switching between photographing modes. [Description of Signs] 1 Microcomputer 1t, 101 Clock 2 Liquid crystal display 3 Lens driving circuit 4 Photometry circuit 5 Distance measurement circuit 6 Winding circuit 7 Date imprinting circuit 8 Motor 9 Main switch 10 Strobe Switch 11 mode switch 12 half-press switch 13 release switch 14 lens barrel position detection switch 15 battery cover switch 17, 100 battery 102 display 103 exchange detection means 104 display control means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-44329 (JP, A) JP-A-57-57431 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03B 17/18-17/20 G03B 17/24 G03B 17/36 G03B 17/02

Claims (1)

(57) [Claim 1] A clock which is driven by a battery and outputs clock data of date and time, and a clock data of this clock and the number of photographed frames are selected. A replacement display means for detecting replacement of the battery; and when the replacement of the battery is detected by the replacement detection means , a predetermined clock is added to the clock data of the clock. Set data
To display clock data on the display,
Display control means for setting a correction mode for correcting clock data .