JPH03236033A - Film feeding detector for camera - Google Patents

Abstract

PURPOSE:To reduce the possibility that a counting means picks up chattering and to improve the reliability of a film feeding quantity by predetermining a time when a signal may not vary logically and inhibiting a signal from being inputted for the time. CONSTITUTION:A wind pulse switch consists of a sprocket having projections which engage film perforations and a movable and a fixed contact pieces, and a pulse signal which is 0 when the switch is ON through the movable and fixed contact pieces or 1 when OFF is inputted to a main CPU. Chattering is generated in ON/OFF signal processing like this, but the CPU previously sets the time when the signal does not vary logically between the variation of the signal and next variation and no signal detection is performed in this area. In concrete, designed signal variation intervals are 12 ms, so no detection is performed within at least 10 ms and the influence of the chattering is reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The second invention relates to a film feeding device that loads, winds, and rewinds a film by driving a motor. The present invention relates to a film advance detection device that detects the amount of travel.

[Prior Art and Problems to be Solved by the Invention] A conventional camera equipped with an autowind mechanism has means for detecting the amount of film advance in order to determine the amount of drive of the wind motor.

One such means is a switch called a wind pulse switch. The wind pulse switch rotates as the film travels by engaging with the perforations of the film or by frictional engagement with the film, and outputs a pulse signal at a more or less constant period.

The control device determines the amount of film feed based on the number of output pulses, counts the number of sheets, or determines that winding or rewinding has ended when no pulses are output for a predetermined period of time.

However, when processing a signal from a switch that outputs a signal by repeating this type of 0N10FF, chattering may occur. When chattering occurs, there is a possibility that the means for counting pulses will make a judgment different from the actual film feeding amount.

[Object of the Invention] The present invention provides a film feeding detection device in which the signal counting means is less likely to make an erroneous judgment even when chattering occurs in the signal output as the film is fed. The purpose is to

[Means for Solving the Problems] In view of the fact that signals accompanying the running of the film are output at almost constant intervals, the present invention is based on the assumption that after a signal is output, the next signal is theoretically not expected to be output. The configuration is such that signal detection is prohibited during this period.

With such processing, even if chattering occurs, as long as it is within the prohibited time, it will not be affected at all, and the possibility of misjudgment by the counting means due to chattering can be further reduced.

[Example] The present invention will be described below based on the drawings. 1 to 43 show an embodiment of a film advance detection device for a camera according to the present invention.

First, the appearance of the camera will be explained according to FIGS. 1 to 3.

In FIG. 1, l represents the camera body, and 2.3 represents the zoom lens barrel. As shown in FIG. 2, the front side of the camera body 1 is provided with a distance measuring section 4, a finder window 5, a zoom type strobe 6, a light receiving element (CdS), and a self-timer lamp 7. Back cover 8,
Mode button 9, select button lO, drive button 11. Zoom lever 12, power button 13, green lamp 1
4. A red lamp 15 and a back cover opening/closing lever 18 are provided, and the back cover 8 is opened when the back cover opening/closing lever 16 is operated in the direction of the arrow from its upward stop position to its downward stop position. When the back cover 8 is open, the back cover opening/closing lever 16 is at the lowering stop position, and when the back cover 8 is closed, the back cover opening/closing lever 16 is raised.

At the top of the camera body 1, as shown in FIG. 1, a shutter button 17, a TW button 18, and an LCD panel 19 are provided. Note that the TW button 18 is a button used to select and designate two positions located at opposite ends of the zoom lens.

The zoom lever 12 is operated from the neutral position in the direction of the arrow indicating the wide side and the telephoto side. This zoom lever 12 is also used to change the exposure method and color photographing method, which will be described later, but this will be explained together when the functions of the mode button 9 and drive button 11 are explained.

Next, the circuit configuration of the above-mentioned camera will be explained based on FIG. 4.

The main CPU is the center of this control circuit. A sub-CPυ that performs shutter-related processing is connected to this main port 02 via a drive IC.

The main CPU performs the following controls based on inputs from information input means such as switches.

(1) Control the zoom motor and wind motor via each motor drive circuit.

(2) Lighting and flashing of the green lamp 14 for distance measurement related displays, the red lamp 15 for flash related displays, and the self-timer lamp 7 for self-timer related displays (
(not shown in FIGS. IFII to 3) is controlled.

(3) Control the display on the LCD panel 19.

(4) Perform charging control of the strobe circuit.

As a means of inputting information to the main CPU,
There are the following:

(1) A main switch that is turned on by operating the power button 13. When this main switch is in the power-on/stop state, pressing the power button 13 once will turn on the power, and even in the power-on state, pressing the power button 13 will turn on the main switch. The switch is turned on and power supply is stopped.

(2) A photometry switch that is turned on by pressing the shutter button 17 one step.

(3) Press the shutter button 17 in two steps to turn on and release switch.

(4) Move the zoom lever 12 from the neutral position to the telephoto side (arrow r
A teleswitch that turns on by pushing it in one direction.

(5) A wide switch that is turned on by tilting the zoom lever 12 from the neutral position to the wide side (in the direction of arrow r2).

(6) The zoom mode switch used to switch the operating state of the zoom lens between step operation and continuous operation, and the details of step operation and continuous operation will be described later.

(7) A mode switch that is turned on by pressing the mode button 9. The mode button 9 is used to set the exposure method.

(8) A drive switch that is turned on by pressing the drive button 11. The drive button 11 is used to change the shooting method.

(9) A select switch that is turned on by pressing the select button 10. The select button 10 is used to select the number of self-timer images, interval start time, interval time, etc. of the shooting method.

(10) Zoom code ZCOSZCI, ZC2, :(
7) The zoom code is used to control the position of the lens, display the focal length, etc., and the details will be described later.

(11) Push down the back cover opening/closing lever 16 to 0FFI,
, turns ON when the back cover 8 is closed and the lever is raised to the lock position.
back cover switch.

(12) A wind pulse switch for detecting film running, which will also be described later.

Next, details of the zoom mode switch, wide switch, and tele switch will be explained.

The zoom-related switch is composed of a brush provided on the zoom lever and a contact point, and although the positional relationship of each contact point is shown in FIG. 5, the switch itself will be explained. The wide switch is ON when the camera is on the wide side, and the tele switch is ON when it is on the telephoto side.

The wide switch and tele switch are OFF when the zoom lever is in the neutral position. The zoom mode switch is ON from the middle of the wide switch through the neutral position to the middle of the tele switch. The second zoom mode switch is turned off at the wide side from the middle of the wide switch, and from the tele side from the middle of the tele switch.

Step operation and continuous operation are distinguished by 0N10FF of this zoom mode switch. This zoom mode switch, tele switch, and wide switch are turned on and off.
Five types of information can be input to the main CPυ depending on the combination of FFs. This information is used in zoom operations or photographic/exposure method settings. For example, during zoom operations, forward/reverse zoom motor information and switching information between step operation and continuous operation are input to the main CPU. On the other hand, the sub CPU controls a distance measurement unit consisting of an infrared LED and a PSD via an autofocus IC, and also outputs distance measurement data based on the output of the autofocus IC and photometry data based on the output of the CdS. Transfer to main CPU.

The drive IC controls the shutter circuit and outputs a trigger signal for the strobe circuit based on commands from the sub-02 port.

Next, the functions of the mode button 9 and drive button 11 will be explained.

The mode button 9 has the function of setting an exposure method.

As shown in FIG. 6, three types of exposure methods are available: auto (automatic strobe flash mode), strobe ON (strobe forced flash mode), and strobe OFF (strobe flash prohibition mode). In Figure 6,
Display marks corresponding to each exposure method are shown, but in the case of auto, there is no display. In addition, one counter KXPMODIC (hereinafter referred to as KXPM
(abbreviated as ODE) is prepared for sale, KXPMODErO
H Tsuba Auto, "lH" Hastroho ON, r2HJ
supports strobe OFF. When the mode button 9 is operated, the contents of EXPMODE are changed.

The drive button 11 has a function of setting a shooting method. As shown in FIG. 7, five types of shooting methods are prepared here: single-frame shooting, self-timer, self-twist, interval, and mid-rewind. Although display marks corresponding to each photographing method are also shown in FIG. 7, they are not displayed when single-frame photographing is performed. In addition, a counter DRIVMODE (hereinafter referred to as DRIVM) is set depending on the shooting method.
(abbreviated as ODE) is prepared.1. m (7) DR
IVMODEROoooBJ takes a single frame, “0001
BJ Hasel 7 timer, rooloB”! ;tSelfT
w, rollBJ is interval, rlX X
BJ supports mid-rewind. In addition, ××× is r□
), rIJ, and self T
11 will be described later.

When the drive button 11 is operated, the DRIVMODE is changed. This EXPMOD is displayed on the LCD panel 19.
Display is performed based on g and DRIVMODE, and control during photographing is also performed based on these. Note that if the drive button is held down for 3 seconds or more, the shooting method changes to a mid-rewind mode.

In the interval mode, the interval start time and interval time can be set.

Here, the interval start time is a time for specifying how many minutes (seconds or hours) must pass from the current point in time when the interval mode is set to enter the interval mode. Further, the interval time is the time from one photograph to the next photograph. In the self-timer mode, five types of self-timer number of shots are available.

Next, the display contents of the LCD panel 19 will be explained with reference to FIG. Mode button 9, drive button 1
The exposure method mark and photographing method mark according to No. 1 are displayed in each display area according to their respective aspects, and since the meaning of each mark has already been described, the remaining marks will be explained.

In FIG. 8, rINTJ means that the imaging method is interval, and the "-" below it is displayed when setting the interval time.

The "S" to the left of rINTJ is displayed when setting the interval start time. At the same time, 1-1 under "S" is also displayed. 20 is a battery mark, 21 and 22 are segment display areas, and 21 is a display area for displaying focal length, interval start time, and interval time. "mIl" is a unit mark that lights up when displaying the focal length and means millimeters, r3J is seconds, "m" is minutes,
"h" means the unit of time, and lights up when the time is displayed during interval shooting. Here, [1] and [mu+]
use segments in common.

These rs, rm, h, and IIIJ are selected depending on each aspect.

Further, the display area 22 is for displaying the number of shots, and rEXJ is a number mark indicating the unit of shooting. The battery mark 20 lights up when the battery is exhausted.

FIG. 9 is an explanatory diagram of the zoom code. The zoom code plate is constructed as a part of the zoom lens barrel, and has a pattern as shown in FIG. The hatched portion of the zoom code plate is configured as a contact point, and the four brushes come into contact with each other. For brushes located at GND, the brush itself is grounded to GND,
It works to drop the zoom code board to GND. The signal is taken out from the brush, zCOlzCl, zC2 is "0" when the brush is in contact and "1" when it is not in contact.
In this specification, 3-bit information detected from the conduction relationship between these terminals is defined as a zoom code. In addition, this control camera uses a lens position code PO3 (hereinafter referred to as PO8) and a focal length code DIV based on the zoom code for zooming control.
(hereinafter referred to as DIV).

PO8 is shown here with the lens in the retracted position (P
O8/0), there is an angle in the lens stop prohibited range (PO2-4) between the wide end and the storage position, and the wide end (PO2-4)
, at the telephoto end (PO3/4), and in the zoom range between the wide end and the telephoto end (PO2-4).
V is used to divide the zoom range into 21 parts and detect the lens position. DIV in Figure 6 is a hexadecimal number.

In FIG. 9, the wide end of PO2-4 is also expressed as having a certain width, but this part actually has no width. In other words, pos.2 occurs only when the lens is set to the wide end. P
The same applies to the telephoto end of O2-4. Z is the contact point
C2 is used for wide end and telephoto end detection.

On the other hand, in the zoom range, as described above, there are 21 divisions corresponding to the focal length of the photographic lens, but the 20 stages must be divided using 2 bits. Therefore, in this example, a relative code structure is adopted in which zoom codes 5.4.6.7 are repeated and corresponded to DIV=1 to 14.

When such a configuration is adopted, it is not possible to identify the division code corresponding to the focal length of the lens from only the statically detected zoom code, so changes in the zoom code from the end point to the end point are dynamically detected. The system is configured to detect the current division code and sequentially rewrite the division code stored in the memory to grasp the current division code. Note that the focal length is displayed from 38 mm to 90 mm, and corresponds to each DIV as shown in FIG. 9.

In addition, in Fig. 9, the stop position of the lens when the lens is moved in a step operation state is indicated by "・", but the lens stop position during this step operation is different from the mechanical This position was chosen so that the focal length display would not change when removing backlash.

That is, in the camera of this embodiment, the -H zoom motor is rotated forward and stopped in order to eliminate backlash in the mechanical system when the zoom motor stops reversing, so the focal length display changes from the short focal length during forward rotation. This is because if the focal length is changed to the long focal length side, there is a possibility that the operator may feel uncomfortable.

The movement of the zoom lens will be explained with reference to No. 10@.

■When the lens is in the stored state and the power is turned on, the zoom motor rotates forward and the lens moves toward the wide end as shown by arrow A.

- When the power is turned on and off while the lens is in the zoom range, the zoom motor is reversed and the lens moves as shown by arrow B, thereby retracting the lens. In this case, there is no need to remove backlash.

(2) For example, when the wide end is selected by operating the TW button 18, the zoom motor is reversed and the zoom lens is driven, as shown by arrow C, until the wide end is exceeded. The zoom lens is driven 50m5 in the same direction even after the wide end is detected. And 50I
After IIs, the zoom motor is rotated forward and the zoom lens is stopped at the wide end.

- When the teleswitch is turned on, in the case of continuous zoom, the lens is driven as shown by the arrow until the teleswitch is turned off. In the case of step zoom, the zoom motor is rotated forward and stopped at the next stop position as shown by arrow E.

■When the wide switch is turned on, the zoom motor is driven in the case of continuous operation, and the zoom lens is driven in the same direction for an additional 70@s from the point when the wide switch is turned off, as shown by arrow F. . Then, the zoom motor is rotated forward for 50 m5 and then stopped.

This eliminates mechanical backlash.

In the case of step zooming, backlash is removed by rotating the motor 50 degrees backward from the step zoom stop position as shown by arrow G, then rotating forward, and returning to the step zoom stop position again.

For example, when the telephoto end is selected by operating the 7w button 18, the zoom motor is rotated forward as shown by arrow H, and the movement of the lens is stopped at the telephoto end.

Next, a wind pulse switch for detecting the running state of the film will be explained.

The wind pulse switch, as shown in Figure 11,
It consists of a signal sprocket with a protrusion around the periphery that engages with the perforations of the film and a triangular prism-shaped contact piece pressing part formed on the shaft, and a contact part consisting of a movable contact piece and a fixed contact piece.

The movable contact piece is in elastic contact with the contact piece pressing part of the signal sprocket, and is intermittently displaced to the fixed contact side as the signal sprocket rotates, repeatedly coming into contact with and separating from the fixed contact piece.
The wind pulse switch inputs a signal of 1 to the main CPH when each contact piece contacts and becomes conductive (ON) and 01 when it becomes non-conductive (OFF).

Next, process the signal input of the wind pulse switch in the first step.
This will be explained based on FIG.

When processing a signal from a switch that outputs an 0N10FF signal by repeating this type of conduction and non-conduction, chattering may occur when the signal is switched. Conventionally, in order to prevent the effects of such chattering,
Control is used in which the signal is determined to be correct if the same signal continues for a certain period of time, rather than making a judgment based on the signal obtained instantaneously.

In addition to the above control, this camera does not perform signal detection in areas where the signal theoretically does not change between one signal change and the next, making it less susceptible to chattering. . Specifically, the wind pulse signal is
0N10FF is repeated at a constant cycle, and the interval between changes is designed to be 12m5 or more. Therefore, since the signal does not change at least within 1 oss after the signal changes, signal detection is stopped during this time. Such processing can further reduce the influence of chattering.

Next, the operation of the above camera will be explained based on a flowchart.

- (Reset Processing) When the battery is installed, the reset of the main CPU of the camera is canceled, and the program is executed from the reset processing shown in FIG. 13.

First, all memories are initialized (step RTI), then all switch signals are input (step RTI).
Step RT2), the exposure and shooting method initialization processing shown in FIG. 14 is executed, and EXPMODE%DRI
VEI! The ODE is initialized (step RT3), and each memory has the following initialization: shooting method, single frame shooting, exposure method, number of auto-self-timer shots of 1, interval start time of 10 seconds, and interval time of 10 seconds.

Next, the zoom initialization process shown in FIG. 15 is executed (step RT4).

In this camera, the zoom code is a relative code as mentioned above, so if the battery is removed and the memory contents are discarded, the camera itself will no longer be able to determine the current position of the shooting lens. is performed in such a case to temporarily pull the photographic lens back to the storage position.

In the zoom initialization process, a zoom code input process is performed (step ZMI), and it is determined whether the zoom code is "2" (step ZM2).

When the zoom code is "2", the lens is already in the retracted position, but so that you can confirm that the reset has been applied, rotate the zoom motor forward, wait 100m5 (step Z!!3, ZM4), and then step Execute ZN5 processing. If the zoom code is not "2", the process moves directly to step ZF15.

Next, the zoom motor is reversed in step ZM5, and step ZM8. While inputting the zoom code using ZM7, it is determined whether the zoom code is "2" or not.

Step Z! 7, when it is determined that the zoom code is "2", step Z! 8, the zoom motor brake process is executed, then the POS is initialized (step ZM9), and the process returns to the reset process.

Through the above process, the lens is set to the storage position of pos=o, the reset process is completed, and the control proceeds to the lock process.

- (Lock Process) FIG. 16 shows the lock process. This process is a process in which the camera is placed on standby with low power when the camera is switched from the shooting standby state to the storage state by operating the main switch or by automatically storing the camera as described later.

Here, it is assumed that the power is turned on and off by operating the main switch, that film is set in the camera, that the back cover 8 is closed, that a predetermined number of films have been loaded, and that the lens is stored. The state of being
Let's start the explanation by assuming that there is a camera.

First, a 30 minute timer is started (step LO
I) This 30-minute timer is activated immediately before automatically retracting the lens to the locked position with MVPO3° EXP!, which will be described later. l0
DE,,DRIV! l0DE(7) Used to clear the contents after 30 minutes. This is because if the lens is automatically retracted and no operation is performed on the camera even after 30 minutes have passed, it can be assumed that the lens has simply been retracted.

Next, the entire display on the LCD is turned off (step LO2).

And the flag? Determine whether FLEXZ is rQJ and is "1" (step LO3), flag? F.I.J.
XZ is used to determine whether or not a film is attached.

flag? FLEXZ is "0" when no film is set in the camera.Here, we assumed that the film was set normally, so is it a flag? FLKXZ is “
1”.

flag? When FIJXZ is set to “IJ,
Film number display processing is executed (step L04)
In the film number display process, as shown in FIG. 17, it is determined whether the film number counter is greater than or equal to "lO" (step FPI). The number of films is displayed using the display area and the display area for the "l" digit (step FP2).

When the film number counter is less than "lO", the number of films is displayed in the "10" display area.

Then, the previous state of the main switch (power button) is stored in memory (step LO5).

By the way, the flag? When FLEXZ is rQJ, step LO5 is directly executed. flag? FLEXZ is “1”
When the film is set in the camera, step LO4 is always executed, so when the film is set in the camera,
Even if the power is turned on or stopped, the number of films is displayed on the LCD panel.

Next, the current signals of the main switch and back cover switch are input (step LO6), and it is determined whether the 30 minute timer has timed up (step L07).
). When the 30 minute timer times up, is there a flag?
Set AUTORgT't rJ (step LO
8). This flag? AUTORgT is used to determine whether to return the camera to the operating state before the lens was automatically retracted if the power button is pressed within 30 minutes after the lens is automatically retracted.

Then, it is determined whether or not loading of the film has been completed (step LO9). L
DEND is used. flag? LDEND is set to "1" when film loading is completed, and is set to "0" when film loading is not completed. In other words, when the camera back switch is OFF,
0”. flag? When LDEND is "0", the process moves to step L017, but since it is explained here that film loading has ended, the flag? LDEND is set to "1", and the process moves to step L011.

In step L011, it is determined whether the camera back switch is ON or OFF.

Here, the camera back switch is ON, so step L
Transition to 012. In step L012, it is determined whether there has been a change in the main switch. This determination is made by comparing the previous contents of the main switch stored in memory and the contents of the main switch input this time.The previous contents of the main switch and the contents of the main switch input this time are the same. So,
Assuming that there is no change in the main switch, a low current consumption mode process in which the process is put on standby every 500@s is executed (step LO13), and the process returns to step LO5. Therefore, the camera CPU continues to operate in the low current consumption mode.

Next, assume that the back cover 8 is opened during operation in this low current consumption mode. When the back cover 8 is opened, the back cover switch turns OFF.
Therefore, in step LOLL, it is determined that the camera back switch is OFF. When this back cover switch is turned off, the process moves to step L014.

In steps LO14 and LO15, the above-mentioned exposure and photographing method initialization processing and winder system initialization processing are performed.

In this initialization process of the winder system, as shown in FIG. LDEND, 7 lag? FLKXZ,
75g? REWgND is set to "0" (steps WS1, WS2, WS3), the film number counter is also cleared, and the LCD panel does not display the number of films (steps 134, WS5).

Next, in step L016, the flag? AUTORKT
is set to "0" and the process moves to step L012.

If you leave the back cover open, will it turn into a flag? L.D.
Since END is rQJ, in step LO9,
flag? It is determined that LDEND is "0", and the process moves to step L017. Step LO1? Then, it is determined again whether the back cover switch is ON or OFF.

If the back M8 remains open, the cpo operates in low current consumption mode in this state. Here, when the back cover 8 is closed, it is determined in step LO17 that the back cover switch is ON, and the loading process (step L018) shown in FIG. 19 is executed.

Next, it is assumed that the CPU continues to operate in the low current consumption mode, and that the power button 13 is operated at this time. Then, in step L012, it is determined that there has been a change in the main switch, and the process moves to step LO19. In step L019, it is determined whether the main switch is turned on or turned off.

Press the power button 13 to turn the main switch from OFF to O.
Since the main switch is determined to be "ON" in step L019, the process proceeds to step LO20. Flag in step L020? At) Determine whether TORET is "0" or "1". flag? A
UTORET is set to 1 when the camera is left unattended for 3 minutes and automatically retracted in the main processing described later.

In the second example, it is assumed that the power was turned on and off by the main switch last time, and the flag? AUTORET is r□.

Suppose the flag? When AUTORET is "o", exposure method/photography method initialization processing is executed in step LO21, and then wide movement 1 processing is executed in step L022. Then, the process moves to main processing. Note that the processing of wide movement 1 will be described later.

flag? If AUTORgT is 1, that is, the power button 13 is pressed before 30 minutes have passed after automatic storage. Then, in step LO12, the previous memory of the main switch and the contents of the current main switch are compared, and it is determined that there has been a change in the main switch, and the process moves to step LO19, where it is determined whether the main switch is ON or OFF. It is determined whether Since the main switch is turned on by pressing the power button 13, the process moves to step LO20 and the flag? AUTORET is “1”
” or “0”. flag? A.O.
TORET is "1" after 3 minutes and before 30 minutes.
Therefore, in step LO20, it is determined that the flag 'IAUTQRET is "1", and the processes of steps L023 to L026 are executed. Flag in step L023? AUTORE
T is set to rQJ. In step L024, exposure method display processing is executed. In step L025, photographing method display processing is executed. In step L026, lens automatic return processing is executed. This step LO23~
Through the processing in step LO26, the camera returns to the state immediately before the lens was automatically retracted.

- (Loading Process) In the loading process, as shown in FIG. 19, the exposure method is set to auto, the shooting method is set to single frame shooting (step LDI), the interval start time,
Interval time initialization is performed and each time is set to 10 seconds (step LD2).

Next, the flag that means loading is finished? LDEND
is set to "1" (step LD3), and
The wind pulse counter is set to "17" (step LD4).The wind pulse counter is used to advance the film by a predetermined number of sheets.Next, the wind pulse count process described later is executed (step L).
D5) If this wind pulse counting process ends normally, steps LD6 to LD8 of the loading process are executed, but if the wind pulse counting process is abnormal, steps LD6 to LD8 of the loading process are executed. LD8 processing is not executed.

Here, it is assumed that the wind pulse count process is performed normally. Then, in step LD6, the film number counter is set to "1", the number of film display processing is executed, and the flag ? indicating that film is loaded is set. FL
EXZ is set to "1" (step LD7, LD
8), and returns to lock processing. Note that an abnormality in the wind pulse count process means a loading error. In this case, you will need to open the skin layer 8 lid, reset the film, and close the back lid 8 again.

- (Wind Pulse Count Processing) FIG. 20 is a flowchart of the wind pulse counting process called in the above-mentioned loading process and the later-described wind process. In this process, the amount of travel of the film is detected by detecting wind pulses output as the film travels.

When this process starts, in step WPI, a flag indicating the start of pulse counting? WPC3T is cleared and the wind motor is rotated forward in step WP2.

The loop of steps WP3 to WP12 is a process of determining whether or not the initial wind pulse count start position appears within 1.5 seconds while determining the state of the wind pulse 111P1 camera back switch.

When the back cover switch is ON, is there a flag immediately after starting? Since WPC8T is O, step W
Proceeding from P8 to step WP9, if the wind pulse is 1, the flag is changed in step WPIO111,
After waiting for Loads, before time-up, step WP
Return to 4. Loading and winding end after the wind pulse becomes 1, so if the previous process ended normally, the above path will be followed. However, it is possible that the wind pulse is stopped at 0 for some reason, so in this case, step W
Skip PIO1WPII, repeat the switch input at an early stage, and wait for the wind pulse to become 1.

flag? After WPC3T is set to 1, step WP
8, the process branches to step WP13, and it is determined whether or not there is a change in the wind pulse.

If there is no change in the wind pulse, step WP4
to form a loop. If the 1.5 second timer times up without any change, the motor is stopped in step WP7, a return value "abort" is set, and the process returns. Further, when the back cover is opened, the winder system initialization process shown in FIG. 18 is executed, and then the wind motor is stopped.

Is this initialization process a film-related flag? LDEND
.

? FIEXZ, ? This process clears REWEND, resets the sheet number counter, and erases the sheet number display.

If there is a change in the wind pulse, step 1f
At P14, it is detected whether the change is from 0 to 1 or not. If the change is from 0 to 1, the preset wind pulse counter wPC is decremented in step WP16, and when wPC becomes 0, the motor is stopped in step WP17, and the return value is "Normal completion." ” and return.

If the wind pulse count wPC is not 0, or if the change in the wind pulse is from 1 to 0, wait for 10+*s in step WP15, then move to step WP3 and set a new value of 1.5. Start the seconds timer.

Step WPII, WP15 (7) IOms standby processing c. As mentioned above, the influence of defective inputs due to chattering etc. is reduced by not inputting signals in a region where the signal theoretically does not change after the wind pulse is switched. This is a process for

(Interrupt Processing) FIG. 21 shows a flowchart of interrupt processing. This processing is executed based on an interrupt signal generated at intervals of 50 m5, and executes display-related processing and soft timer counting.

In step IRI, an INT timer used for time measurement during intervals and self-timers is counted, and in step IR2, other timers, such as a 30-minute timer used in lock processing, are counted.

Next, in step IR3, the green lamp and red lamp blinking process is performed. This process is to execute the green lamp blinking for short distance warning and the red lamp blinking to prompt the use of strobe at 4Hz in the AICAF process described later. This is the process.

Step IR4 is a process for determining whether the hard timer of 0.5 seconds has timed up, and when the time has expired, the processes from step IR5 onwards are executed. Therefore, the processes from step IR5 onwards are executed once every ten interrupt processes.

In steps IR5 and IR6, the hard timer is restarted and a plurality of soft timers are counted.

In steps IR7 to IRIO, the display of the remaining time of the interval is permitted, and the remaining time of the interval is displayed when the camera is in automatic shooting mode and the shooting method is interval.

In step IRII, the LCD blinks and the interval mark, self-timer mark, etc.
to blink.

The processing of steps IR5 to IRII does not need to be executed very frequently; on the other hand, if it were executed every time an interrupt occurs, the interrupt processing itself would take a long time and could interfere with the main loop. , is executed every 0.5 seconds.

<Main Processing> FIGS. 22 and 23 show the main processing. This process is repeatedly executed when the camera enters a shooting standby state by operating the main switch.

First, a 3-minute timer is started (step MAL
), this 3-minute timer is related to automatic lens storage, and is used when storing the lens when there is no change in the operating status of the camera for more than 3 minutes. Next, in step MA2, a select mode counter SELEMODE (hereinafter referred to as S
ELEMODE) is set to rQJ. S
ELEMODE is used when setting modes such as self-shooting and interval shooting. Then, the switch information is stored in the memory (step I!A3).

Next, the flag? 5Set WSEN to "O" (step MA4), flag? SWSgN is used for photometry permission determination.

? 5WSEN=1 means photometry processing permission, ? Sga 5E
N=O means that photometry processing is prohibited. Then, it is determined whether or not the shooting method is midway rewinding (step l!A5). If the shooting method is a shooting method other than midway rewinding, the process moves to step llA3. In step MA6, the flag? R
Determine whether EWEND is "1". This flag? REWEND is set to "1" when rewinding is completed, and is "0" when rewinding is not completed.In step A6, the flag ? When REWEND is "0", it is determined in step MA7 whether the memory of the previous photometry switch is ON. If the previous memory of the photometry switch is OFF, in step MA8, the flag ? Set 5WSEN to "1". In step MA7, the previous memory of the photometry switch is ON.
In this case, step MA8 is passed and the process moves to step A9. This is because if you keep pressing the shutter button, you cannot tell whether there is a change in the light metering switch or not, so you wait until the light switch on one side is turned off and check the flag. This is because it was decided to set 5WSEN to "1".

In step MA6, the flag? REVICND is “
When it is determined that there is a
8 and moves to step MA9. This is to prohibit photometry processing when the film is rewound.

In step MA5, when it is determined that the shooting mode is midway rewind, step MAD, IIA? ,M
A8 is passed and the process moves to step MA9. Step M
In A9, flag? Set REWEN to "O".

flag? REWEN is used to determine permission for mid-way rewinding.

Step MAIO is executed after step MA9.

In step MAIO, it is determined whether the shooting method is midway rewind. When the shooting method is half-rewind, it is determined whether the previous memory of the release switch is 0 or OFF (step MAIL), and when the previous memory of the release switch is OFF, a flag? RE adventure KN
is set to "1" (step MA12).

Then, step MA13 is executed. If the previous memory of the release switch is ON, step MA12
is passed and the process moves to step MA13. This is because if you keep pressing the shutter button, you cannot tell whether there is a change in the release switch or not. REWE
This is because it was decided to set N to "1". In step MAIO, if the shooting method is other than mid-rewind, step MAII, ! Pass A12 and go to step M
Move to A13. This is because, when a shooting method other than midway rewinding is used, midway rewinding is prohibited.

Flag in step MA13? Set ZOOMKN to "0". This flag? ZOOMIN is used for zoom permission determination. Then, it is determined whether the contents of the previous memory of the teleswitch are OFF or ON (step I! A14). When the internal content of the previous memory of the teleswitch is OFF, the wide switch It is determined whether the previous memory contents are OFF or ON (step MA15). When the wide switch is OFF, the flag ? is set in step MA16. Z0011
E) l is set to "1", then step l! A1
7 is executed. Here, the fact that the tele switch is OFF and the wide switch is OFF means that the zoom lever is at the neutral position.

When the previous memory contents of the teleswitch are ON,
Step MA15. Bus MA16 to step MA
17 processes are executed. When the internal play of the previous memory of the wide switch is ON, the process of step MA17 is executed, skipping the process of step MA16.

Therefore, when the zoom lever is in the neutral position, the flag? ZO
OMICN will be set to "1". When you keep pushing the zoom lever in the direction of the tele switch, or when you keep pushing the zoom lever in the direction of the wide switch, the flag? ZOOON remains at "0", step MA17, flag? Set TWEN to "0". This flag? TWEN is the tele end
The 0th order used for determining permission to move to the wide end, step M
At A18, it is determined whether the previous memory contents of the 7w switch are ON or OFF. If the previous memory contents of the TV switch are OFF, proceed to step l.
Flag in llA19? Set TWKN to "1". Then, the process moves to step MA20. When the internal play of the previous memory of the TW switch is ON, step l! A19 is passed and the process moves to step MA20. This is because if you keep pressing the TW button, you cannot judge whether there is a change in the 7w switch or not.
Wait for the switch to turn off and set the flag? This is because it was decided to set TWEN to "1".

In step MA20, the current state of the switch is input. Then, in step MA21, the previous memory contents and the internal play of the current switch input are compared. When the contents of the previous memory and the contents of the current switch input are different, that is, when there is a change in the switch input, start a 3-minute timer (Step M
A22), proceed to step MA23. If there is no change between the previous memory content and the current switch input content, step MA22 is passed and the process moves to step MA23.

In step 1IA23, it is determined whether the 3-minute timer has timed up. Here, first, a case in which the 3-minute timer times up will be explained.

If the 3 minute timer times up, step M
In A24, flag? A[ITORgT is set to “1”. Then, a strobe charging stop process is executed (Step 1A25), a lens automatic storage process is executed (Step 1IA28), and the process shifts to a lock process. That is, the power button 13, the shutter button 17, the zoom lever 12, the drive button 11. TV button 1
If 3 minutes or more elapse without operation 8 or opening/closing the back cover 8, the lens will be automatically retracted.

The automatic lens storage process in step 26 will be described later.

Next, a case will be described in which the 3-minute timer has not timed up in the main process.

If the 3-minute timer has not timed up, in step MA27, the flag ? It is determined whether RgWKN is "1". If the shooting method is halfway rewind, is there a flag? Since REWgN is “1”, step! At A28, it is determined whether the release switch is ON or OFF. Release switch is on
If so, strobe charging stop processing is executed (step MA29), and then rewind processing is executed (step NA29). In the second embodiment, if the drive button 11 is held down for 3 seconds or more, , operate the shutter button 17 to turn the release switch from OFF to ON.
If you do so, rewinding will be performed midway through.

In addition, if the drive button 11 and the shutter button 17 are held down at the same time and a predetermined period of time elapses, midway rewinding may be performed.The midway rewinding setting is determined by the exposure shooting method setting described below. This is done through processing.

Next, in step MA27, the flag? RICWK
If it is determined that N is rQJ, the process moves to step MA31. Step! In lA31, flag? LDEN
Based on D, it is determined whether or not loading has been completed.

If loading is not completed, determine whether the camera back switch is ON or OFF (step MA
32), If the camera back is closed, stop charging the flash (Step MA33), execute loading process (Step MA34), return to the beginning of the main process (Step A35), In step MA32, close the camera back. When it is determined that the is open, step MA39
Migrate directly to If it is determined in step MA31 that loading has been completed, step M
At A36, it is determined whether the back cover switch is ON or OFF. When the camera back is opened, go to step NA37 to initialize the exposure/photography system and winder system.
Step MA38), the process moves to step A39. If it is determined in step A36 that the back cover is closed, the process moves directly to step MA39.

Therefore, if the main process is being executed with the back cover still closed after film loading is completed, the process proceeds in the order of steps MA31, NA36, and NA39. In addition, in the state immediately after opening the closed camera back, step MA31, l! A38, NA37, NA
The processing proceeds in the order of NA38 and NA39. And if the main processing is being executed with the back cover open, the step? ! A31, NA32,! Processing proceeds in the order of 1A39. Furthermore, when the opened back cover is closed, steps MA31, NA32, A33, N
Processing proceeds in the order of A34 and NA35.

Next, in step MA39, the previous memory contents of the main switch and the current contents of the main switch are compared. Step M if there is a change in the main switch
Move to A40. In step MA40, it is determined whether the main switch is ON or OFF. When the main switch is OFF, that is, when it changes from ON to OFF, charging of the strobe is stopped (step MA41), lens storage processing (step MA42) is performed, and the process proceeds to lock processing (step MA43). Regarding the lens storage process, if the power is turned off by manual operation (1) described later, step MA40, NA4
The processing proceeds in the order of 1, NA42.11A43. Note that if the main process is being executed by holding down the power button and the user releases the power button during the main process, the process will proceed to step MA44 via steps MA39 and NA40. .

In step MA44, exposure method/photography method setting processing is performed. This will be discussed later.

After completing this exposure method/shooting method setting process, step M
The process of A45 is executed. Flag in step MA45? It is determined whether 5ICLECT is "0" which is "1". This FSKIJCT is set during the exposure method/photography method setting process, and is set to "1" when the time of the shooting method is set. flag? 5ELECT
When is "0", the process moves to step MA46.

In step MA48, the flag? Determine whether TWEN is "1" or "0". flag? TWKN “
1", it is determined whether the TV switch is ON or OFF (step MA47), and 1w
When the switch is ON, strobe charging is stopped (
Step aA+s), telewide movement processing (step 49) is performed, and the process returns to the beginning of the main processing (step MA50).

In 22, the tele-wide movement process is a process for forcibly moving the zoom lens to the tele end or wide end by operating the TW button 18, the details of which will be explained when the lens is moved.

In step MA48, the flag? TWEN is “0”
When this is the case, step NA31 is executed. Flag in step MA51? ZOOMEN is “1” or “
0". Flag 72001! EN says “
0”, is it a flag? Determine whether 5WSEN is "0" (step MA52), flag? 5W
When SICN is also "0", strobe charging control is performed and the process returns to step MA53 and step NA3.

Step! A31G: a, flag Zoo! KN
When it is determined that there is "1", the teleswitch is turned on.
or OFF (step MA54)
), and when the teleswitch is OFF, it is determined whether the wide switch is ON or OFF (step N
^55).

When the wide switch is OFF, step MA52
to move to. Therefore, when the zoom lever is in the neutral position in the zoom permission state, step MA51;
Then, main processing is performed via A54, MA55, and MA52.

In step MA55, when the wide switch is ON, it is determined whether the zoom lens is at the wide end (step MA58), and when the zoom lens is not at the wide end, charging of the strobe is stopped.
7) Perform zoom wide processing (step MA58)
, Return to the main top (step MA59). When the zoom lens is at the wide end in step MA56, there is no need to move the zoom lens to the wide end, so step MA53 is executed without performing the process of A2B in step MA57. to move to.

Next, when it is determined in step 9 l'1A54 that the tele switch is ON, it is determined whether the zoom lens is at the telephoto end (step MA60).

When the zoom lens is not at the telephoto end, stop charging the strobe (step MA61), execute zoom telephoto processing (step MA82), return to the top of the main program (step MA83), and in step 1lA60, the zoom lens is at the telephoto end. , there is no need to move the zoom lens to the telephoto side, so step MAIL, MA62
, the process moves to step MA53 without performing the process of MA63.

i.e. flag? When the zoom lever is operated toward the tele switch when ZOOMEN is permitted, the zoom lens is moved toward the telephoto side until it reaches the telephoto end. Furthermore, when the zoom lever is moved to the wide-angle switch side, the zoom lens is moved towards the wide-angle side until it reaches the wide-angle end. Note that zoom wide processing and zoom tele processing will also be described later.

In step MA52, the flag? 5WSEN is “1”
” When it is determined that the photometry switch is ON or OFF, it is determined whether the photometry switch is ON or OFF (step MAR4).
Then, strobe charging stop processing is performed (step M
A65), move to AEAF control processing (step MA
SS) Next, the process of moving the zoom lens will be explained.

- (Lens storage processing, etc.) Fig. 24 shows the processing of lens storage, automatic lens storage, wide movement 1, and telephoto movement.

These processes are called in different places, but the latter half of the process is the same, so they are shown in the same diagram.

This lens storage process is executed when the power is manually turned on/off and when a rewind start is started. For example, step l! of the main process! A4Z
It is executed in

First, "0" is set in the memory MVPO8 (step LMI).Here, MVPO8 is used to memorize the position to which the lens is moved, and is shared for lens automatic storage processing and wide movement 11 telephoto movement processing. ing.

Next, the contents stored in memory MVPO8 and the current PO
This is because the direction in which the lens should be moved differs depending on the processing of comparing the contents of S (step LM2), automatic lens storage, wide movement 1, and telephoto movement. In the case of manual power-on/stop in step MA42, since the current POS content is thicker than avpos=o, zoom motor reversal processing is executed (step LM3), and then lens position detection processing is executed. (Step IJ4),
This lens position detection processing is performed to constantly check changes in the zoom code while the motor is operating and to manage POS and DIV.

Then, focal length display is executed (step LM
5) Therefore, while the lens is moving, the focal length is also changed and displayed accordingly.Next, the current contents of POS and contents of MVPO3 are determined (step LII6).
, the processing of steps LM4 to LM6 is continued until the contents of the current POS match the contents of avpos. Then, if the current POS contents match the avpos contents, zoom motor brake processing (step LM7) is performed, and the process returns to step MA43 of the main processing.

This causes the lens to be stored in the storage position.

The lens automatic storage process is called by step MA26 of the main process as described above. In this process, the contents of the current DIV are stored in the agao module (step LM8), where the MICIIDIV is used to determine the return position when automatically returning the lens. Then, Mvpos is set to 0 (step LM9
), and the same process as the lens storage process (step L
This is because there is essentially no difference from the lens storage process except that the lens is automatically returned when the zero-order power-on operation is performed (M2, LH3 to LllI7).

The wide movement l process is a process for moving the stored lens toward the wide end, and is called in step L022 of the lock process as described above. In this wide movement 1 process, first, "2" is set in MVPO3 (step LMIO), and in step LM2, the contents of MVPO8 and the contents of current PO8 are determined. In the power-on/stop state, the current content of PO8 is “0”.
'', the process moves to step Lu1l and the zoom motor normal rotation process is performed. Then, lens position detection processing,
Focal length display processing is executed (step LM4, Ll'
15), in step LM6, step LM4 is continued until the contents of MVPO8 and the contents of current PO8 match.
~LN6 processing is performed. Then, in step LM6, if the content of MVPO8 and the current content of PO8 match, the process moves to step LM7 and returns to the locking process. As a result, the lens is extended to the wide end (PO2-4).

Next, in the tele-movement process, MVPO3 is set to "4" (step LM12), and the contents of vpos and the current contents of PO8 are compared. Since the content of MVPO3 is always larger than the current content of PO8, the zoom motor is rotated forward (step LMII), and lens position detection processing and focal length display are executed (steps LM4 and LM5).
), then the contents of avpos and PO3 (7) are compared, and the processes of steps LM4 to LM8 are repeated until the contents of avpos and PO8 match, and when they match, the zoom motor brake process (step LM7) is executed. and returns to the main process (step MA50).

Therefore, the lens is forcibly moved toward the telephoto end by the telephoto movement process.

- (Lens automatic return process) FIG. 25 shows the lens automatic return process called at step LO26 of the lock process.

In this process, first, the zoom motor normal rotation process is executed in step LRI, then the process moves to step LR2, where the lens position detection process is executed, and step LR3
Focal length display processing is executed in . Then, in step LR4, the current DIV and MEI! The contents stored in the DIV are compared.

The processes of steps LR2, LR3, and LR4 are repeated until the contents of the current DIV match the contents stored in MEMDIV. Then, when the current DIV and the content stored in MEMDIV match in step LR4, the process moves to step LR5, where zoom motor brake processing is executed, and the process returns to lock processing. As a result, the lens can be returned to the DIV position before automatic lens storage.

- (Tele-wide movement processing) Tele-wide movement processing is performed in steps as described above! ! A4
Called at 9. This telewide movement process is
As shown in FIG. 26, this is used to determine whether to move the lens to the telephoto side or to the wide side by operating the TV button 18. First, in step TWI, it is determined whether DIV is 88 or more. D.I.
When V is 88 or more, shift to wide movement 2 (step TW2), and in step TWI, DIV
is less than BH, transition to tele-movement (step TW
3).

Through this process, lens movement to the far side is selected based on the current lens position.

In other words, if the lens is close to wide-angle, the lens will move to the telephoto end, and if the lens is close to telephoto, the lens will move to the wide-angle end.

However, as a modification, tele-wide movement processing may be performed as follows.

■For example, as shown in FIG. 27, first, step T
It is determined whether PO8 is "2" in WSI. When PO2-4, shift to tele-movement (step TWS2), go to step TWSI, PO8=2
1', in step TWS3, PO3/4
Determine whether or not. PO2− in step TWS3
4, shift to wide movement 2 (step TWS4
), Step TWS3L, if PO2-4 is not present, determine whether DIV is larger than rBHJ or not (Step TWS5), in Step TWS5, D
When IV is rB [(J or higher, shift to tele-movement (
Step TWS6), in step TWS5, DI
When V is less than rBH, shift to wide movement 2 (
Step TWS7).

According to this example, when the lens is at the telephoto end, the lens is moved toward the wide end, and when the lens is at the wide end, it is moved toward the telephoto end. When the lens is between the wide end and the telephoto end, moving the lens closer to the current lens position is selected. That is, if the lens is close to wide, the lens is moved to the wide end, and if the lens is close to tele, it is moved to the telephoto end.

■Also, for example, as shown in Figure 28, PO2-4
If POS=2 in step TWTI, tele-movement processing (step TWT2) is selected; otherwise, wide-movement 2 (step TWT3) is selected. According to this example, when it is at the wide end, it is moved to the telephoto end, and when it is not at the wide end, it is always moved to the wide end.

(2) Further, as shown in FIG. 29, for example, in step TWVI, it is determined whether or not it is PO2-4. In step TWVI, if it is PO2-4, wide movement 2 is selected (step TWV2), otherwise, tele movement processing (step TWV3>) is selected.

According to this example, when it is at the telephoto end, it is moved to the wide end, and when it is not at the telephoto end, it is always moved to the telephoto end.

(Wide Movement 2) FIG. 30 is a flowchart showing wide movement 2 called in the above telewide movement process.

First, the zoom motor is reversed (step ZWI)
, Next, lens position detection processing and focal length display are executed (steps ZW2, ZW3).Next, it is determined whether or not PO2-4 is present (step ZW4), step ZW
4, step Z112~ until PO2-4 is reached.
The process of ZW4 is repeated, and after waiting 50IIIs (step Zlf5), the zoom motor is rotated forward (step ZW6).

Then, rotate the zoom motor forward (step ZW8)
, the lens position detection process is executed (step ZW7), and then, in step ZW8, it is determined whether or not it is PO2-4. Step LM until PO2-4?
, LM8 are repeated, and when PO2-4 is determined, the zoom motor brake process is performed and the process returns to the main process (step MA50).

This wide movement 2 process positions the lens at the wide end.The reason why we decided to drive the lens to the PO2-4 position is because if the zoom motor is rotated forward, the zoom lens Backlash does not occur in the mechanical system that drives the zoom motor, but if the zoom motor is reversed, backlash will occur in the mechanical system, so the lens must be driven to the POS=1 position beyond the wide end. After letting me
I decided to return to the wide end of PO2-4.

- (Zoom telephoto processing) When the zoom lever is operated to the telephoto side, the zoom motor is rotated forward (step ZNI), as shown in the 31st cause.
Then, the next stop position when moving the lens in steps is set in memory 5TDIV (step ZN2).
, when moving telephoto, the DIV toward the telephoto side is stored based on the current DIV. This 5TDIV is the 0th order memory used to store the next stop position during step zooming, and the flag? Set 5TEP to "1" 6 ('2 f Tsubu ZN3), 75ri? 5TICP
is used to determine whether step motion or continuous motion is in progress in telescopic movement processing or wide movement processing. Here, the zoom mode switch is configured so that when this zoom lever is pushed lightly from the neutral position, step operation is selected, and when it is pushed more firmly, continuous operation is selected. It set 5TEP to "l" and determined that step operation was selected.

Then, lens position detection processing and focal length display are executed (steps ZN4 and ZN5), and the teleswitch is turned on.
Determine whether it is FF or ON (step ZN
6) When the teleswitch is OFF in step ZN6, perform zoom motor brake processing (step ZN7) and return to main processing (step MA
63), that is, even if the zoom lever is lightly operated and then released, the movement of the lens is immediately stopped. When the teleswitch is ON, it is determined whether it is POS-4 (step ZN8), step ZN8
In step ZN7, if it is determined that the position is PO2-4, zoom motor brake processing is performed (step ZN7).
The process returns to the main process (step MA63) because the lens has moved to the telephoto end.

In step ZN8, if it is determined that PO2-4 is not the case, the zoom mode switch is ON or OFF.
(step ZN9), and if the zoom mode switch is OFF, the flag ? 5TEP as “
0”. Then, the process returns to the lens position detection process (step ZN4), and as long as the zoom mode switch is in the OFF state, steps ZN4 to ZN6 and step Z
The processing of M8 to ZNIO is repeated, and thereby the zoom lens is continuously extended. Furthermore, the display of the focal length is also changed in accordance with the extension of the second lens.

Then, when the zoom mode switch is turned on, the process moves to step ZNII and the flag? It is determined whether 5TRP is "1" or not. Is there a flag when the zoom lens is extended continuously? Since 5TRP is set to "0", the zoom motor brake process is executed by passing step ZN12 (step ZN13), and the process returns to the main process (step MA63), whereby - degree continuous operation is selected. If so, lens movement can be stopped simply by returning the zoom lever to the step operation position.

During tele movement operation, if the tele switch remains on and the zoom mode switch also remains on, step ZN
6. Step ZN via the determination processing of ZN8 and ZN9
This leads to II. The processing of Konostep ZN6, ZN8, and ZN9 corresponds to the case where continuous operation mode is not selected, and the flag? Since 5TEP remains set to "1", the process moves to step ZN12 and it is determined whether the contents of the current DIV are equal to the contents of the memory 5TDIV. If the contents of the current DIV and the contents of the memory 5TDIV are different, the process moves to step ZN4 and the process returns to step Z.
N4~ZN6, step ZN8, ZN9, ZNII, Z
The process of N12 is repeated, and when the contents of the current DIV and the contents of the memory 5TDIV become equal in step ZN12, the process moves to step ZN13, performs zoom motor braking process, and returns to the main process (step MA63).

Here, in the main flow, the flag? ZOOME
N is once set to "O" (step 1IA13),
If the teleswitch remains ON, step MA
15, the processing at NAl6 is bused and the processing after step MA1 is executed, so when step 2 reaches step MA51, the processing at steps MA54 and MA55 is bused.

Therefore, when the step operation of the lens is selected, the next step operation will not be performed unless the user releases the zoom lever and turns off the teleswitch.

- (Zoom wide processing) When the zoom lever is operated to the wide side, the zoom motor is reversed as shown in Fig. 32 (step ZRI).
, Since it is a wide movement, the DIV of the next step stop position in the wide direction is set in the memory 5TDIV based on the current DIV (step ZR2), and then the flag ? Set 5TEP to “l” (step ZR3
), then lens position detection processing and focal length display are executed (steps ZR4, ZR5), and it is determined whether the wide switch is OFF or ON (step ZR6). When is OFF, the zoom motor is rotated forward after 70 seconds (steps ZR7 and ZR8), in order to perform processing to eliminate mechanical backlash in the zoom drive system. Then, wait 50+ms (step ZR9
), performs lens position detection processing (step ZRIO)
, Step ZRIIG: Determine whether or not to transition L to PO5=1. Here, the reason why we decided to wait for 70IIS and 50m5 is because it is undesirable that the focal length display increases during the backlash removal process even though it is moving in the wide direction.

In step ZRII, if pos=i,
Displays the focal length (step ZR12-), performs zoom motor brake processing (step ZR13-''),
Returning to the main process (step MA59), that is, when the zoom lever is operated and released, backlash removal processing is performed, and if PO8 is not 1 thereafter, lens movement is stopped. When it is determined that PO3 after backlash removal processing is 1, lens position detection processing is executed (step ZR12), and then,
Determine whether it is PO2-4 (step ZR13
), if not PO2-4, step ZR12, Z
Repeat the process of R13 and change the current Pos content to PO2
-4, execute the zoom motor brake process (step ZR14) and return to the main process (
Step MA59), whereby the lens is positioned at the wide end. Further, even if the zoom lever is lightly operated and then released, the movement of the lens is similarly stopped immediately.

In step ZR6, when the wide switch is ON, it is determined whether PσS = 1 or not (step ZR15). The rear zoom motor forward rotation process is performed (steps ZR18, ZR17), and the lens position detection process is executed (step ZR12).
, Next, it is determined whether or not it is PO2-4 (step ZR13). If there is no PO2-4, step ZR
12. Repeat the ZR13 (7) process, and when it is determined that the current content of PO8 is PO2-4, execute the zoom motor brake process (Step ZR14), return to the main process (Step MA59), ZR1
6. The processing for ZR17, ZR12 to ZR14 means backlash removal at the wide end.

In step ZR15, if it is determined that PO2-4 is not the zoom mode switch, it is determined whether the zoom mode switch is ON or OFF.
Determine whether the zoom mode switch is OFF (step ZR1g).If the zoom mode switch is OFF, the flag ? 5TKP
is set to rQJ (step ZR19), and
Returning to the lens position detection process (step ZR4), as long as the zoom mode switch remains OFF, step Z
Repeat the process for R4 to ZR6, ZR15, ZRlg, and ZR19 (7).

This causes the zoom lens to be continuously retracted.

In addition, the display of the focal length is also changed in accordance with the movement of the lens. That is, as the lens moves toward the wide side, the numerical value of the focal length is displayed decreasing.

Then, when the zoom mode switch is turned on, the process moves to step ZR20 and the flag? It is determined whether 5TICP is "1" (step ZR20), and if the zoom lens is continuously retracted, the flag ? 5T
EP Haro” Nice Sale Tail Note, ZR7~ZR1
4 or ZR7 to ZR13- wide switch is OFF
Perform the same processing as above.

When the wide switch is ON and the zoom mode switch is also ON, step ZR6 unless it is PO2-4.
, ZR15, ZRlg via the judgment process
R20L, Konostep ZR6, ZR15, ZRl
g(7) processing corresponds to the case where continuous operation mode is not selected, and the flag ? Since 5TEP remains set to "1", the process moves to step ZR24 and it is determined whether the contents of the current DIV are equal to the contents of the memory 5TDIV. Current DIV contents and memory 5TDIV
If the content differs from the content of
Steps ZR4 to ZR6, Steps ZR1g, ZR20
, ZR24 (F) processing is repeated, and step Z
In R24, the current DIV contents and memory 5TDZ
When the contents of V are equal, the process moves to step ZR25.

In step ZR25, 50m5 standby processing is performed, and then,
Performs zoom motor forward rotation processing (step ZR26) and lens position detection processing (step ZR29), and then returns to step Z.
Move to R2g. In step ZR28, the current DI
It is determined whether V and memory 5TDIV match.

The processes in steps ZR27 and ZR28 are repeated until the current DIV and memory 5TDIV match, and when they match, the zoom motor brake process is performed (step Z
R29), return to main processing (step! l
A39).

Here, in the main flow, flag 7z001!
KN is set to "0" once (step lA13),
If the wide switch remains ON, step M
Step MAI by busing the process of A16? The subsequent processing will be executed, so step! When reaching lA31,
Step MA54! 1A55 processing is bused. Therefore, when the step operation of the lens is selected, the next step operation will not be performed unless the user releases the zoom lever and turns the wide switch -HOFF.

- (Exposure, shooting method setting processing) Figure 33 is the main processing step! 12 is a flowchart showing an exposure and photographing method setting subroutine called at A44. This process sets the aforementioned exposure method and photographing method based on the operations of the mode switch, drive switch, and select switch.

When this process starts, the flag?? in step ETl? S
Determine the state of ELgCT. This flag is set to 1 if only the select switch was turned on among the switches used for setting during the previous setting process, and is cleared when the select switch is turned off after setting the variables described below. It is something that will be done.

flag? If 5ELECT is O, it is determined that variables are not being set, and in steps ET2 to ET5, the exposure method and photographing method are displayed on the LCD panel, and the states of the tele and wide switches are checked. If either the tele switch or the wide switch is ON, it is determined that the zoom is being operated, and in step RT6 a 3 second timer used to determine whether to enter the rewind mode is started, and in step ET7 the mode, drive, A flag that means OFF for select, metering, tele, and wide switch? MDSW
Set OF to O and return to main processing. This flag becomes 1 when all the above switches are OFF, and is used to detect the end point of the mode switch and drive switch from OFF to ON.

If both the tele and wide switches are OFF, both the tele and wide switches are OFF in step ET8.
What flag does it mean? MDZMOF is set to 1,
Determine the status of the photometry switch. flag? MDZMOF
is used to detect the end point of the teleswitch or wide switch from OFF to ON in the variable setting process described later. If the metering switch is ON, proceed to step E without setting the exposure or shooting method in order to enter AEAF processing.
The process returns to the main process via T8 and ET7.

If all three switches mentioned above are OFF, proceed to step ETIO1ETII, determine the status of the mode switch and drive switch, and if both are OFF, cancel the mid-rewind mode in step ET12. After displaying the photographing method in step KT13, the 3-second timer is started again in step ET14.

In steps gT15 to ET17, depending on the state of the select switch, if this is ONL, is it a flag? 5ELE
CT 1, flag? Set ZIISWOF to 0 and turn OFF
If so, is it a flag? Set MDSWOF to 1 and return to main processing.

flag? When 5ELECT is set to 1, it is determined that a variable setting operation is being executed, and zoom-related processing is skipped in the main processing. This is because the tele and wide switches are shared for zoom-related and variable settings, so it is necessary to limit the settings to only one of them.

Now, if the tele, wide, and metering switches are OFF and the mode switch is ON, step E
Processing proceeds from TIO to ET18, and a 3 second timer is started.

Next, Steve ET19 Teha, flag? Step E is performed only when MDSWOF is 1, that is, when both the mode and drive switches were OFF in the previous setting process.
The process moves to T20-g'r2a and settings are changed.

Therefore, changes to the settings cannot be accepted unless the switch is turned -HOFF.

If any switch was turned on in the previous setting,
This is because if the settings are changed, the settings will change continuously by continuing to press the switch, making it inconvenient to use.

Now, in step ET20, the mode switch is turned on.
If it is determined that the
At T22, the counter EXPMODE is incremented, limit processing is performed, and the exposure method is displayed. When the mode switch is OFF, it means that the drive switch is ON, and in steps ET24 to KT26, the counter DRIVIMODE is incremented, limit processing, and the photographing method is displayed. In any case,
In step ET9, the mode and drive switch is set to O.
After setting the flag MDSWOF to 0 to indicate what has been done with N, the process returns to the main processing.

In addition, limit processing is performed if the counter EXP month OCR value is 2H1 or Louis is counter DRIVEMODE (7).
EX when the value is further incremented from 0OIIB
PMODE OH.

This is the process of setting DRIVEMODE to 0OOOB.

If it is determined in step ETIO and step KTII that the mode switch is OFF and the drive switch is ON, the state of the select switch is determined in step ET27. When the select switch is ON,
Proceed to step ET18 side, select switch is OFF
If so, step g'rs, ET14, E
It is determined whether the 3-second timer started at T18 has timed up again, and the process proceeds to step KT19 until the timer has timed up. When the 3-second timer expires, the shooting method is set to rewind halfway.

(Variable setting process) Figure 34 shows the step ET for setting the exposure and shooting method described above.
12 is a flowchart showing variable setting processing that branches from I. This process is executed when only the select switch was OFF in the previous exposure and shooting method setting process, and sets three variables: the number of self-timer images, the interval start time, and the interval time.

The values of each variable, memory data, and display on the LCD panel are as shown in the table below.

1III! Number of self-timer sheets Data Display OHIKX 1 [(2EX 2H3EX 3H4EX 4H5mCX Table 2 Interval start time Interval time Data display 10 seconds 20 seconds 30 seconds 40 seconds 50 seconds 1 minute 2 minutes 3 minutes 4 minutes 9 hours ICH9h 10 hours IDH1Oh 12 hours 11cH12h24 time
IPH24h Step PS1 is the variable selection process shown in FIG.

Variable selection is a process of selecting which memory data to change among the three memory data of the self-timer number, interval start time, and interval time.

To select each data to be changed, use the variable 5KLEI!
Corresponding to the value of l0DIC, 5EIJI! 0DE=O is no variable, SRLEMODE=1 is the number of self-timer sheets,
SRLKMODE・2 is the interval start time, SEL
EMODIC=3 corresponds to the interval time.

In the variable selection process, if the shooting method is the self-timer, set SELKMODR to 1 and return the value "variable".
is set and returns to the variable setting process. If the shooting method is interval, 5R1IC! l0D
If E=2, change this to 3, otherwise set SELKllODg=2 and return value "with variable"
Set and return. If the shooting method is neither self-timer nor interval, there is no need to set variables, so the return value is set as SEIICMODE=O.
Set "No variable" and return to variable setting processing.

In the variable setting process, if the return value of the variable selection process is "variable present", the LCD is displayed in steps PS2 and PS3.
The display is stored in memory, the entire display is temporarily turned off, and the variable display process shown in FIG. 36 is executed.

The variable display process displays the variable sgLga set in variable selection.
The memory data selected based on oog is displayed. When this process starts, the exposure and photographing method displays are temporarily turned off, and if SELEMODE=1, the self-timer number of shots is displayed, and the self-timer mark is lit to prompt the user to set the number of shots.

If SKLEMODE=2, the interval start time is displayed, and the INT mark indicating the interval mode, the S mark indicating the start time, and the r-mark are turned on. This camera can specify the start of interval photography in relative time intervals. Conventional cameras had an interval setting in which the shooting start time was specified as an absolute time, so a time table different from the interval time setting was required, and a clock function had to be provided. By specifying the start time as a relative time, the camera of this embodiment can use the same time table as the interval time, and is not required to have a clock function.

If SELRMODE=3, the interval time is displayed, and the INT mark and the "-" mark indicating the interval time are lit.

When the variable display is completed, in steps P35 to PS12, on the condition that both the tele and wide switches were OFF in the previous setting process, the variable data selected when the tele switch was ON is added. Variable data is subtracted when the wide switch is ON.If both the tele and wide switches are OFF, the flag? MDZM
If OF is set to 1, and on the other hand, which switch is OFF, the variable is displayed after the setting and the flag? Set MDZMOF to 0.

The processes of steps P314 to P318 are executed regardless of the presence or absence of variables.

flag? ? If IDZMOF is 0, that is, if either the teleswitch or the wide switch was ONt last time, or if a variable change is executed, it is determined that the setting is being changed and the program returns to main processing without returning to the display. Return. flag? MDZI! Even if OF is 1, if the select switch is OW, the process similarly returns to the main process.

If step PS14 is reached without a variable, the flag ? MDZMOF is 1, so the select switch is OFF.
If it is FF, is it a flag? Set sgt and gc'r to 0 and return to main processing. Even if there are variables, if both the tele and wide switches are determined to be OFF during this process, if the select switch is OFF, the flag? 5ICIICT is set to 0 and L stored in memory.
After returning the CD display, return to the main processing.

Here, a different operating procedure for the above variable setting process will be explained using an example.

Assuming that the tele, wide, and metering switches are OFF, the exposure method changes by one when the mode switch changes from OFF to OWL. To further change the IIg output method, turn the mode switch OFF once, then turn it back on.
It is necessary to make it N. By repeating this 0N10FF, the exposure method is set to auto, strobe ON, and strobe OFF.
The system switches sequentially between the following three methods.

When the drive switch is changed from OFF to ON, the photographing method changes by one. Drive switch 0N10F
F allows single frame shooting, self-timer, self TW1
The interval changes sequentially between the four methods.

When the shooting method is changed from single-frame shooting to self-timer, turn the drive switch OFF and then turn on the select switch to enter variable settings.
The self-timer number of shots is set. The number of self-timer images can be changed by operating the tele switch or wide switch while the select switch remains OFF. Changes are made by looking at the end point from OFF to ON of the tele and wide switches, so
Even if it continues to be ON, the data is changed by only one step.

If the select switch is turned off during the process, the set state will be canceled.

When the shooting method is changed from self-TV to interval, the drive switch is turned off and then the select switch is turned on to enter the interval start time setting mode. Here, turn the select switch ONL,
You can set the interval start time by operating the tele and wide switches while the wire is on. If you turn the select switch -HOFF, the setting state will be canceled, but if you turn it ON again, it will enter the interval time setting mode.You can set the interval time by operating the tele and wide switches while holding the select switch OWL. It can be performed. When the select switch is turned off, the setting state ends.

Note that the interval start time and interval time can be set repeatedly.

After the above settings, by turning on the release switch, the self-timer or interval is executed based on the setting data.

Also, when only the drive switch is turned on, a 3 second timer counts up, and when the timer expires, the game enters a rewind mode. In mid-rewind mode, turn the drive switch OWL.

If you turn on the photometry switch, the film will be rewound.

- (AEAF Control Process) Next, the AKAF control process related to shutter control will be explained based on FIGS. 37 to 38. This process is executed when the photometry switch changes from OFF to ON in the main process if the shooting method is one frame. Also, if the shooting method is self-timer or self-tw, and the second or subsequent shots are taken, then after winding, if the shooting method is interval, after interval control, "Executed from the terminal of AEAFflll13J."

In steps EFI to KF3, distance measurement data is input, lens latch (LL) calculation is performed, and if the distance to the subject is a distance that the photographic lens can focus on, the green lamp is turned on, and if the distance to the subject is a distance that cannot be focused. If so, the green lamp will flash to warn you. Although detailed description will be omitted, the LL calculation is a calculation that determines the amount of lens movement for focusing on the subject based on the distance measurement result.

When iAF control processing is executed from the terminal of AEAF control 3, that is, when the shooting method is interval, self-timer, or self-TV, and when shooting the second and subsequent pictures,
Distance measurement and LL calculation are not performed. Therefore, in these cases, the previous LL data is used as is, and the focus is the same as in the first image.

This is to prevent out-of-focus when the object to be photographed moves from the distance measurement area at the center of the screen.

Next, in step EF4, the DI code indicating the ISO sensitivity of the film is input, and this value is converted to the Sv value used for exposure calculation based on the correspondence shown in Table 3, and the exposure method is changed accordingly. A correction value ΔEvsmin of the lowest speed shutter control value in the case of auto and a correction value ΔEvsfl of the strobe light emission switching shutter control value Evsfl are set.

Table 3 DX2 3 4 ISOSv ΔgvsminΔE
vsf11 1 1 25 3.0 0.00
0.01 1 0 50 4.0 0.00
0. OL O11005,Q O,OQ 0
．． 01 0 0 200 6.0 G, 25 0
．． 50 1 1 400 7.0 0.50 1
．． 00 1 0 800 8.0 0.50 1.
00 0 1 1800 9.0 G, 50
1.00 0 0 3200 10.0 0.50
' 1.0 In the camera of this example, when the film sensitivity is set to high, the increased sensitivity is not used only to lower the automatic flash switching brightness, but to prevent image quality from deteriorating due to camera shake. Also used for For this reason, when the film sensitivity is high, the light emission switching shutter control value Evsfl is increased to suppress the reduction in automatic flash switching brightness to about half of the conventional level, and the corresponding exposure is used to increase the minimum shutter speed. .

ΔEvsmin and ΔEvsfl are the lowest speed shutter control Evs for the standard film sensitivity l5O100
This is the correction value for the light emission switching shutter control value Kvsfl.

Tables 4 and 5 show the light emission switching brightness and the lower limit of the AX interlocking range of the camera of the present invention, with Table 4 showing the values on the wide side and Table 5 showing the values on the tele side. . (however,
Brightness value Lv=subject brightness Bv+5 is defined. ) Table 4 Wide flash switching brightness (Lv) Flash switching value (Evsfl) AIE interlocking range lower limit (Lv) Minimum shutter speed control value (Kvs+5in) Shutter speed ISO100ISO200 9,008,50 9,009,50 9,008,25 9,009,25 1/45 seconds 1154 seconds 130 400 8.00 10.00 7.50 9.50 1 noro 4 seconds Table 5 Tele ISO100ISO200ISO
400 light emission switching brightness (Lv) 10.75 10
．． 25 9.75 Emission switching value (Evsfl) 9
．． 50 10.00 10.50 AE interlocking range lower limit (Lv) 10.75 10.00 9.25 Minimum speed shutter control value (Evsmin) 9.50 9.75
10.00 Shutter speed l/64 seconds l/76
Seconds 1/90 seconds With the above settings, the lowest speed shutter control value Evsa+in changes depending on the film sensitivity, so if a film with high sensitivity is used, the effects of camera shake can be more effectively prevented. I can do it.

In addition, when performing the control shown in the above table, the lowest speed shutter control value gvsmin and the light emission switching shutter control value E
vsfl do not take the same value, and Evsmin <Ev
In the region sfl, the strobe light emission range and the AIC interlocking range partially overlap. In this case, by performing FM control with an aperture value that is approximately IEv smaller than the aperture value determined by FM calculation, it is possible to obtain a preferable exposure without excessively overexposing the image.

In step EF5, based on the correspondence shown in Table 6 from the focal length code OIv of the lens, the correction amount α for the aperture F number, the light emission switching shutter control value Evsfl when the exposure method is auto, and the lowest speed shutter control value Evsa+i
n, the amount of change ΔGNo in the strobe guide number with respect to the wide end is determined.

Table 6 DIV a Evsizi
n, RvsflΔGNo.

1 WIDE end 0 0/8 9 0/8
0/82 01/8 90/8
0/83 01/8 90
/8 0/84 02/8
90/8 1/8s 02/
s 90/8 1/8s
o3/a 90/8 1/87
03/8 90/8 1/
88 04/8 90/8
1/89 04/8 90/8
2/8A 05/8 9
0/82/8B 0515 90
/8 2/8C06/8 90/8
2/8D O8/8 90
/8 2/8E 07/8
91/8 3/8F 07
/8 91/8 3/810
1010 92/8 3/811
10/8 92/8 3/
812 11/8 93/8
3/813 11/8 93/
8 4/814 12/8
94/8 4/815 TRLEf4 1
2/8 9 4/8 4/8 Then, based on the above data and the photometry data also inputted to the sub CPU in step EF6, the AICF (auto exposure, flashmatic) shown in FIG. 39 is processed in step EF7. is performed, AH, Fl! Data is set.

In steps EF8 to EF13, the calculated FM
If the data indicates strobe firing, it is determined whether the charging voltage of the strobe capacitor has reached a level that allows strobe firing, and if it has reached the level that allows strobe firing, the red lamp is lit and strobe firing is completed. is displayed, and if it is impossible, the process enters steps EF14 to RF18 to wait for charging.

However, the flag? If AUTORKL is 1 and the shooting method is interval, the voltage is not checked.
This is because during interval photography, charging control is performed every time one photograph is taken, as shown in interval control in FIG. Also, the flag? [AI] When TORKL is 1, it is assumed that the photographer is away from the camera, so no red lamp is displayed. By the way, the flag? AUTOREL
is set to 1 when taking the second and subsequent shots in interval, self-timer, and self-TV shooting modes, and is mainly used to automatically pass the metering switch and release switch status judgment to enter the release sequence. Used to execute shooting.

If it is determined in step EF8 that the strobe is not emitting light, there is no need for charging, so steps EF9 to EF13 are skipped, and the process begins in step EF21.

The charging wait processing in steps EF14 to EF18 is a flag? If AUTREL is 1, that is, if the shooting method is self-timer, self-TW, or interval and the second or subsequent shots are being taken, an interruption is determined; otherwise, the metering switch judgment is repeated and charging control is repeated until charging is completed. If charging is completed, the process is executed again from step EF8, and if the return value of the interruption determination is YES during charging, or if the photometry switch is turned off,
At steps gFL9 and gF20, the green lamp and red lamp are turned off, charging is stopped, and control is transferred to the main control.

In steps EF21-AF23, the set LL,
Ah.

Outputs each FM data to the sub CPU.

Then, when taking the second and subsequent pictures in each of the interval, self-timer, and self-TV shooting methods, the process skips the photometry and release switch determination and jumps to r3J in FIG. 38. Step EF25. In EF26, on the condition that the photometry switch is turned on and is working, it waits for the release switch to be turned on, and when the release switch is turned on, the process proceeds to rRJ in Fig. 38.
The metering switch is turned off before the release switch is turned on.
If so, the red and green lamps are turned off in step EF27 and the process jumps to the main process.

Steps EF28 to EF54 in FIG. 38 are processes for waiting for a time until release when the shooting method is other than one frame. If the shooting method is 1 frame, step EF55 is executed directly from EF28 and KF36 without going through these processes.
Processing continues.

As mentioned above, since the second and subsequent shots are taken from the "S" terminal, steps EF29 to EF35 are used for the first shot in the interval shooting method, and steps EF37 to EF42 are used for the first shot in the self-timer and self-TV mode. is executed.

First, if the shooting method is interval, step E
At F29 to BF32, set the interval start time to the INT timer and set the flag? A [ITOREL 1
, sets the interval mark to blink to indicate that it is in operation, and also allows display of the remaining interval time. In step KF33, the maximum number of shots taken at the interval is set to 40 on the exposure counter KXPC.

Here, if the start time is 10 seconds, the following process will wait for the start time, but if it is 10 seconds or more, step E
Proceeding from F34 to step KF35, the edge lamp and red lamp are turned off, and the process branches to the interval control shown in FIG. 42.

If the shooting method is self-timer or self-TV, set the INT timer to 10 seconds in steps EF37 to EF39, and set the flag? AOTORKL 1
The self-timer mark will flash to indicate that it is in operation. *If the shooting method is self-timer, set the specified number of self-timer shots in the exposure counter gXPc, and in the case of self-TV, set 2 in gxpc.
Set the number of sheets.

In the case of interval shooting, there is little need to change the metering data if the time until shooting is within 10 seconds, but if more time has elapsed, there is a high possibility that the subject brightness has changed and metering should be done again. It is more reliable to do −
The camera first moves to interval control, and then performs AKAF control again when it is almost ready to take a picture.

Steps KF43 to gF46 repeat the interruption determination and wait for the INT timer to time up with the self-timer lamp turned on, and when the remaining time of the INT timer becomes less than 3 seconds, the self-timer lamp blinks and shooting is performed. Foretell something.

If the return value of the interruption determination is YES, the red lamp and the green lamp are turned off in step EF47, and control is transferred to the main control.

Steps EF48 to EF54 are IN depending on the shooting method.
This is a process to reset the T timer. In the case of a self-timer, if the initially set number of self-timer images is 3 or more, it is set to 2 seconds, and if it is 2 or less, it is set to 5 seconds. In the case of self-TV, the number of shots is fixed at two, so it is set to 5 seconds. For intervals, IN
In order to avoid the display returning to a number other than 0 due to the T-timer's time-up, the display of the remaining time is prohibited and 0 seconds is forcibly displayed, and the IN? Set the interval time on the timer.

The reason for changing the time until the second and subsequent shots depending on the number of shots taken by the self-timer as described above is that when taking multiple photos with the self-timer, the purpose is to print more copies or to change the scene. This is because it is thought to be summarized into two patterns: to obtain photographs, and the intervals required for each purpose are considered to be different.

That is, if the purpose is to print more copies, the same scene may be used, so the shooting time interval may be short, but if the scene is to be changed, it may take some time to rearrange the image.

Therefore, if the purpose can be determined, the interval time until the next photographing can be changed in accordance with the purpose. Here, the general tendency is to take a relatively large number of pictures at once when the purpose is to make more prints, and a relatively small number when the purpose is to change the scene, so we recommend using the self-timer to take 3 or more pictures. In this case, the interval is set to 2 seconds, assuming that the purpose is to print more copies, and in the case of two copies, the interval is set to 5 seconds, assuming that the purpose is to change the scene.

The release sequence of steps EF55 to gF82 is executed immediately after the release switch is turned on if the shooting method is one frame, or after the INT timer times up in the case of other methods. Here, first, the red lamp, green lamp,
After turning off the self-timer lamp and outputting a shutter start signal to the sub CPU, confirm that a shutter operation end signal is input from the sub CPU.

If the shooting method is single-frame shooting, the process directly proceeds to the wind process; in other cases, the exposure counter is decremented and then the process proceeds to the wind process.

However, if this counter reaches 0, the automatic exposure/screening subroutine is executed and then the process proceeds to wind processing.

(A17M calculation process) FIG. 39 shows the AEFI! called at step EF7 during the JAF control process. This shows a calculation subroutine.

This process sets the exposure data to be output to the sub CP[l, determines whether the strobe emits light or not, and determines the aperture value Avs when flashing.

In step All, flag? Clear BVMIN,
7M data is set to non-emission.

Next, in steps Al12 to AM4, if the photometric value By is less than or equal to the lower limit value 1.0, a flag? BYl! With IN set to 1, the photometric value By is rounded to 1.0, and the upper limit is limited to 12.0.

In step AM5, film sensitivity Sv and photometric data B are
An exposure value Kvs is calculated from y and a correction value α of the open F-number based on the wide end.

In steps AM6 to AM8, the exposure method is strobe ON.
In the case of , if it is auto and the photometric value is below the lower limit,
Or, if the exposure value is less than the light emission switching shutter control value, Fl! of steps AM9 to 8M13. Perform the calculation, otherwise proceed to step A with the strobe not emitting light.
The process advances to M14. Note that the light emission switching shutter control value Evsfl in step AM8 is the above-mentioned correction value ΔEv.
This is the value after correction with sfl added.

In step AM9, the AFstep determined based on the distance measurement data is set to the aperture value A corresponding to the reference guide number.
Convert to ys. Then, in step AMIO,
Add the change in guide number ΔGNo due to the strobe's own zooming to Avs, and the change in film sensitivity (Sv-5) based on l5O100 to obtain the open f-number based on the wide end based on the change in lens focal length. The AVS is obtained by subtracting the correction amount α.

Step All1l~A! 113, the lower and upper limits of the Avs value are limited between 3.5 and 8.0, and the Avs
Set the value as 7M data.

In steps AM14 to AM16, the upper and lower limits of the exposure value Evs are limited, and these are set as AE data and AMAF
Return to control processing. The lowest speed shutter control value Kvsmin in step AN15 is the above-mentioned correction value ΔEvs.
This is a value corrected by adding min.

- (Interruption determination processing, automatic release release processing) FIG. 40 is a flowchart showing the interruption determination processing. This process is for interrupting self-timer, self-TV, and interval automatic shooting, and is executed in a loop. In automatic shooting, after entering each sequence, shooting is performed automatically without any instructions from the photographer, so this process is necessary in case you want to interrupt this in the middle of the sequence.

In steps DCI to DC4, if loading is not finished, if either the back cover switch or the main switch is 01, the return value is YES, and both are OFF.
If so, enter NO, and if loading is completed, the back cover switch is OFF or the back cover switch is OFF.
Even if it is N, the return value is YES if the main switch is ON, and NO if the back cover switch is ON and the main switch is OFF.

If the return value is set to nC3 in the interruption judgment, or if automatic release release processing is to be performed, steps DC5 to D
At the CIO, the auto-release status is canceled, the self-timer lamp is turned off, and if the shooting method is self-timer or self-TW, the self-timer mark displayed on the LCD changes from blinking indicating operation to standby. Switch the light to indicate the status, and similarly switch the interval mark from flashing to steady in the case of an interval.
Switch the time display to focal length display.

<Wind Process> FIG. 41 shows the wind process that branches after photographing in AEAF control. This process involves winding the film one frame after photographing.

Is step WDI a flag? It is determined from the state of FLEXZ whether or not a film has been set, and if there is a film, the wind pulse counter NPC is set to 4 in steps WD2 to WD5 and the above-mentioned wind pulse counting process is executed to ensure normal operation. When finished, add the number of sheets counter and display the number of sheets on the LCD panel.
If the return value of the wind pulse count process is "stop", in steps WD6 to WD7, if the camera back is open, the process returns to the main process, and if the camera back is closed, the automatic release is canceled as shown in FIG. 40. After executing , branch to auto-rewind processing.

If steps WD2 to WD5 are skipped because there is no film, or if the wind pulse count process ends normally, if the shooting method is single-frame shooting, the process returns to main processing and the self-timer tear lever AEAFfI
llJfl/J branch, and if cell 77W, perform wide movement 2 and set the lens to the wide end, then
Enter EAF control. Further, if the imaging method is interval, the process branches to interval control, which will be described later.

- (Interval Control) FIG. 42 shows a flowchart of interval control that is executed after branching from the winding process. This process is a process of waiting while measuring the set interval time for shooting the second and subsequent images when the shooting method is set to interval. In cases other than intervals, processing is normally executed in a loop within the main processing, but
In the case of interval, AEAF is executed without going through main processing.
Processing is executed in a loop between the control processing and the interval control processing.

When this process starts, in steps INI to INS,
Set the INT timer to the remaining time of the interval, that is, if the time until the next shooting is less than 5 seconds when the strobe is off, set it to 5 seconds, and for other methods, set it to 11 seconds if it is less than 11 seconds. do.

This is the minimum waiting time required for the camera system, and if necessary before entering the loop described later,
This is the process of resetting the T timer.

Note that in shooting methods other than strobe OFF, there is a possibility that the strobe will emit light, so extra time is taken to charge the strobe capacitor.

In step IN6, display of the remaining interval time in the above-mentioned interrupt processing is enabled, and in steps IN7 to l
Through the loop of N10, the interruption determination is repeated until the remaining time of the interval becomes less than 5 seconds or 11 seconds determined by each imaging method.

If the result of the interruption determination is YES, that is, the interruption is interrupted, the process branches to the main flow and is executed.

The loop from steps INII to IN17 is a process that repeats the interruption determination until the remaining time of the interval becomes less than 3 seconds, and if the exposure method is other than strobe OFF, the strobe charging control is repeatedly executed, and the remaining time of the interval is When the time is less than 5 seconds, strobe charging is stopped. Therefore, when using an exposure method other than strobe OFF, charging control is performed for 6 seconds.

The strobe charge control in step IN14 is a process in which charging is started if the charging voltage of the strobe capacitor has not reached a predetermined level, and if the voltage has reached a predetermined value, no operation is performed.

If the remaining time of the interval is less than 3 seconds, the above A
The EAF control process is executed from the terminal of ``rAEAF control 3'', and if the result of the interruption determination becomes YES before that, the process branches to the main flow.

- (Rewind Processing) FIG. 43 is a flowchart showing an auto-rewind process that branches from the wind process and a rewind process that branches from step MA30 of the main process. This process is executed when the film is wound to the end, or when rewinding is specified by a predetermined operation, and is the process of returning the film to the cartridge.

When entering auto rewind from wind processing,
In step RWI, an automatic release release subroutine is executed, and in steps RW2 to RW4, the lens is returned to the storage position, the wind motor is reversed, and the wind pulse counter wPC is set to 4, which corresponds to one-frame winding.

Next, in step RW5, a flag indicating the start of the 2-second timer is set. Clear 2START and step R
After starting the 3.5 second timer in W6,
A loop of steps RW7 to RW21 is entered.

In this loop, the input of the back cover switch and the wind pulse wP is repeated, and the number of sheets counter is subtracted and displayed every four times the wind pulse rises, and if there is no pulse change within a predetermined time, or the back cover is opened. You can exit if you are The time limit is 2 seconds, but the motor continues to rotate for 3.5 seconds after the wind motor is reversed, regardless of the state of the camera back or the wind pulse. This is because wind pulses may not be generated due to slack in the film or the like at the beginning of the motor rotation, so the motor is rotated a little longer.

Until the 3.5 second timer times up, the process proceeds from step RW7 to step RIIIO, performs switch input, and uses it for determination of steps RWII and RWL2.

Assuming that the camera back is closed, step R
Step 013, step RW7, step R1 until it is determined in W12 that there is a change in the wind pulse storage.
A flO-RW13(7) loop is formed. After the 3.5 second timer times up, step RW8, R
A 2 second timer is started on W9 and a flag? 2
Set START to 1, step RWIO~RW1
4 loops are formed.

If there is a change in the wind pulse, the process proceeds from step RW12 to step RW15, and the change is turned OFF.
Is it a change (rise) from (IN) or O?
It is determined whether the change is from N to OFF.

Furthermore, if the change in the wind pulse is a rising edge, the wind pulse counter NPC is decremented in step RW18, and it is determined whether or not it has become zero. If it becomes 0, it is determined that the film has been rewound by one frame, and in steps RW17 to RW19, the number of sheets is subtracted, the number of sheets is displayed, and the wind pulse counter is reset.

Step RW20 is a process that is executed in any case when there is a change in the wind pulse, and as described in the above-mentioned wind pulse count process, signal input is not performed in a region where there is theoretically no change in the signal. This is a process to reduce the influence of bad inputs such as chattering.

Before starting the two-second timer, the process returns from step RW21 to step RW7, and after starting, the process returns to step RW8 to restart the two-second timer.

If the camera back is opened during the above loop, in steps RW22 to R'd24, if the 3.5 second timer is up, the winder system is initialized and the wind motor is stopped. The process proceeds to step RW30.

If there is no change in the wind pulse until the 2-second timer times up, it is determined that there is no film or that the film has been completely rewound, and the process starts at step RW25.

In steps RW25 to R1f29, after the wind motor is stopped, if there is film, a flag indicating the end of rewinding is set? REVEEND is set to 1, the number of sheets counter is reset to O, and the number of sheets is displayed. If there is no film, the processing of steps RW27 to RW29 is jumped and the processing proceeds to step RW30.

Steps RW30 to RW32 are processes for rotating the wind motor that has stopped once in the normal direction for 0.5 seconds to release the drive system engaged with the spool shaft and free the spool shaft for the next loading. .

When the rewind process ends, the process returns to the lock process and continues.

[Effect] As explained above, according to the present invention, by predetermining a time during which the signal would theoretically not change and prohibiting signal input during this time, it is possible to prevent chattering from occurring in the signal output means. Also, the possibility that the counting means picks up chattering can be reduced, and the reliability of the detected film advance amount can be improved.

[Brief explanation of drawings]

1 to 3 show the external appearance of the camera, with FIG. 1 being a plan view, FIG. 2 being a front view, and FIG. 3 being a rear view. Fig. 4 is a block diagram of the control circuit, Fig. 5 is an explanatory diagram of the contact configuration of the zoom switch, Fig. 6 is a display correspondence diagram of the exposure method, Fig. 7 is a display correspondence diagram of the shooting method, and Fig. 8 is an LCD diagram. An explanatory diagram of the panel segments, Fig. 9 is a developed diagram of the code plate and a diagram of the correspondence between the code plate and each code, Fig. 10 is an explanatory diagram showing an example of zooming operation, and Fig. 11 is an explanatory diagram of the wind pulse switch. , FIG. 12 is an explanatory diagram showing an example of the output of the wind pulse. 13 to 43 are flowcharts showing the functions of the camera of this embodiment. FIG. 13 is a reset process, FIG. 14 is an exposure and shooting method initialization process, and FIG. 15 is a zoom initialization process, Figure 16 shows lock processing, Figure 17 shows sheet count display processing, Figure 18 shows winder system initialization processing,
Figure 19 shows the loading process, Figure 20 shows the wind pulse count process, Figure 21 shows the interrupt process, Figure 22 shows the
Figure 3 shows the main process, Figure 24 shows the lens storage process, etc.
Figure 5 shows lens automatic return processing, Figures 26 to 29 show tele wide processing, Figure 30 shows wide movement 2 processing, Figure 31 shows zoom tele processing, Figure 32 shows zoom wide processing, and Figure 33 shows lens automatic return processing.
The figure shows exposure and shooting method setting processing, Fig. 34 shows variable setting processing, Fig. 35 shows variable selection processing, Fig. 36 shows variable display processing,
FIGS. 37 and 3815 [AEAFf11111 processing,
No. 39 [*AICF! ! FIG. 40 shows the arithmetic processing, FIG. 41 shows the wind processing, FIG. 42 shows the interval control processing, and FIG. 43 shows the rewind processing. Engraving of the drawings Figure 1 S2 Figure 2 Figure 3 Figure 21 Figure 3 Figure 4 Figure 17 Figure 18 Figure 9 Figure 25 Figure 26 Figure 7 Figure 8 Procedure amendment (Spontaneous) 1990 Patent Application No. 32985 2, Name of the invention Camera film advance detection device 3, Relationship to the case of the person making the amendment Patent applicant address 2-36-9 Maeno-cho, Itabashi-ku, Tokyo Name
(052) Asahi Optical Industry Co., Ltd. 4, Agent address: 1-14-3 Monzennakacho, Koto-ku, Tokyo Office
Planet 6th floor (1) Delete the statement ``processing signals'' in the first line of page 3 of the statement. (2) Line 15 of page 4 of the specification, line 16 of the same page,
In the 19th line, the 20th line, and the 4th line of page 8, the words "open/close" should be corrected to "open." (3) Delete "(not shown in FIGS. 1 to 3)" in line 6 of page 6 of the specification. (4) Add a line break between "Input." on the 11th line of page 9 of the specification and the accompanying "On the other hand." (5) In the 13th page, line 14 of the specification, the word "brush" is corrected to "other brushes." (6) In the specification page 14, line 8, page 15, line 7, lines 9 to 10, and lines 10 to 11 of the same page, “
Correct "day vision code" to "focal length code". (7) Specification No. 15 Hage 2nd line rDIV = 1 to 14
J Totbru no rDIV=IH~14HJ J:,,
Correction. (8) On page 16 of the specification, line 14, “In this case,
'' was corrected to ``In this case, we will not be taking photographs.'' (9) In the 19th line of page 20 of the specification, the phrase "storage position" is corrected to "storage position which is an absolute code." (10) In the 16th line of page 30 of the specification, the phrase "back cover 8" is corrected to "back cover 8." (11) “Step 26” on page 41, line 16 of the specification
" is corrected to "Step MA28J. (12) Specification, page 44, line 13 to line 14 of the same page.
line "If the main switch is OFF, i.e.
The phrase "when the main switch changes from N to OFF" is corrected to "when the main switch is ON, that is, when the main switch changes from OFF to ON." (13) On page 45, line 10 of the specification, “This FSEL
ECTJ should be corrected to ``This flag?
Correct “MENJ” to “Flag? ZOOMENJ”. (15) Specification page 48, line 15 to page 17
Correct the line "Strobe charging...MA66)" as follows. ``When the photometry switch is ON, strobe charging stop processing is performed (step MA85), and the process shifts to AEAF control processing (step MA86).
When in FF, perform strobe charging control and step HA.
Move on to 3. ” (16) “LM7, LM8 J and Aruno rZM7.2M8” on page 57, line 5 to line 6 of the same page of the specification
Correct. (17) In the 9th line of page 58 of the specification, the phrase "tele movement processing or wide movement processing" is corrected to "zoom telephoto processing or zoom wide processing." (18) In the 13th line of page 60 of the specification, "tele movement operation" is corrected to "zoom lever operation." (19) From page 65, line 19 to page 66, line 5 of the specification, “Force equal to the content...Step ZR25
to move to. '' should be corrected as follows. "Determine whether the content of the current DIV is smaller than the content. If the content of the current DIV is not smaller than the content of the memory 5TDIV, proceed to step ZR4, and execute steps ZR4 to ZR6, steps ZR18, ZR20, and ZR24 (7) processing. (re)
Jit, (-Lr, in step ZR24, when the contents of the current DIV become smaller than the contents of the memory 5TDIV, the process moves to step ZR25.)
9J is corrected to ``Step ZR27J. (21) r PS18J on page 76, line 10 of the specification.
Correct it to r PS17J. (22) In the first line of page 80 of the specification, delete the statement ``If the shooting method is one frame''. (23) On page 82 of the specification, line 8 to line 9 of the same page, the phrase ``reference...control Evs value'' has been replaced with ``lowest speed shutter control based on film sensitivity 15O100.'' The value Evsmin is corrected. (24) On page 87 of the specification, line 7 to line 8 of the same page, do you mean "?If AUTREL is 1...at an interval"? If AUTOREL is 1, that is, the shooting method is self-timer or self-TV.
and correct it. (25) Correct rAF23J on page 87, line 17 of the specification to r gF23J. (26) r EF43-E on page 90, line 8 of the specification
The one that says F46J is r EF43 to EF46. EF7
Correct it to 0J. (27) Correct "?BVIINJ" to "r?Bvmin" in line 8 and line 11 of page 93 of the specification. (28) Correct "rAVSJ" in the 11th line of page 94 of the specification to rAvsJ. (29) In the 10th line of page 95 of the specification, the phrase ``Loading?'' is corrected to read ``r loading''. (30) In the fourth line of page 97 of the specification, "auto rewind processing" is corrected to "rewind processing." (31) "Auto-rewind processing branching from wind processing" on page 100 of the specification, line 2 to line 3 of the same page
I corrected it to "wind processing, or". (32) Specification page 100, line 9 to page 11
Delete the line that says ``From the wind process...execute the subroutine.'' (33) Correct the drawings in Figures 3, 7, 17, 38, 41, and 43 as attached. Above Figure 3 Figure Figure 17 Procedural amendment (method) Procedural amendment (voluntary) April 18, 1991 1990 Patent Application No. 32985 Name of invention Case of person who corrects film advance detection device of camera Relationship with Applicant Name (052) Asahi Kogaku Kogyo Co., Ltd. Agent Address: 1-14-3 Monzennakacho, Koto-ku, Tokyo 1-135 Phone: 820-1811 Patent Application No. 32, 1990
985 No. 2, Name of the invention Camera film advance detection device 3, Relationship with the person making the amendment case Applicant name (052) Asahi Optical Industry Co., Ltd. 4, Agent 〒
135 Phone: 3820-1811 Address: 1-14-3 Monzennakacho, Koto-ku, Tokyo May 14, 1990 (Delivery date: May 29, 1990) 5. Subject of amendment 6. Details of amendment 〆1 (
1) On page 8, line 8 of the specification, it says "Described later." 1
1. . Then, insert the following statement on a new line. "The main switch, mode switch, select switch, and drive switch are ON only while each button is pressed, and OFF when the button is released.
do. (2) On page 10, line 17 to line 18 of the statement, replace ``Self TWJ'' with ``Self TV (a mode that takes two pictures with the self-timer, and the first picture is set by the user. (The lens is automatically set to the wide end for the second shot.) (3) On page 11 of the specification, line 17 to line 20 of the same page, [where... is the time]. ] is corrected to read, "Here, the interval start time is the time from when the release switch is turned on in interval mode until the first photograph is taken." (4) In line 16 of page 22 of the specification, the phrase "immediately before automatic storage" is amended to read "immediately before automatic storage." (5) In the third line of page 34 of the specification, the word "other" should be amended to read "other that counts time-up every r50 ms." (6) On page 34 of the specification, line W415, there is a new line after the statement ``This will be executed.'' [The 0.5 second hard timer is started during the reset process (not shown) ), insert J. (7) In the 17th line of page 34 of the specification, the phrase "a plurality of" shall be amended to read "a plurality of times for counting time-a-turns every 0.5 seconds." (8) r on page 69, line 13 of the specification? ZMSwOF
J and r? MDSlfOF”. that's all

Claims (2)

[Claims] (1) A signal output means for outputting a signal every time a certain amount of film is fed; a counting means for inputting a signal from the signal output circuit to count the number of times the signal is output; and a signal output from the signal output means. and a prohibition time setting means for setting a prohibition time equal to or less than a theoretically determined signal output interval time of the signal output means, and prohibiting the signal detection of the counting means within the prohibition time. film advance detection device for cameras. (2) The film advance of the camera according to claim 1, wherein the counting means has a determining means that determines that the signal output is a regular signal on the condition that the signal output maintains a constant output for a certain period of time. Detection device.