JPH0869046A - Camera - Google Patents

Abstract

PURPOSE: To prevent futile printing by preventing a photographic picture frame after being photographed with a camera-shake from being printed. CONSTITUTION: In a camera capable of recording information for giving instructions whether to require the printing of an exposed photographic picture frame or not in each frame of a film 30, the camera-shake at the time of photographing the photographic picture frame is detected by a displacement sensor 10, an instructing part 49 inputs the information that the photographic picture frame is not printed to a recording data housing memory 54, based on the camera-shake detecting signal outputted from the displacement sensor 10 and while the film 30 is fed by one frame, the information that the printing is not executed is recorded on the frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly to a camera capable of recording the number of sheets to be printed for each frame on a film.

[0002]

2. Description of the Related Art An information recording area such as a magnetic recording layer is formed in a part of a photographic film, and information such as exposure data at the time of shooting for each frame is recorded in the recording area for development processing in a laboratory or the like. It has been proposed to improve the convenience of printing work (US Pat. No. 4,965,627, Japanese Patent Publication No. 4-502518, Japanese Patent Application No. 5-322393). This data includes, for example, the brightness of the subject, the shooting posture of the camera, the shooting distance, the print format (full size or panorama size), the necessity of printing, the number of prints, and the like.

By the way, since recent cameras are equipped with an automatic exposure control device and an autofocus device as standard equipment, the number of failed photographs due to overexposure or underexposure or poor focusing is small. However, when the exposure time is long, so-called hand-shake is likely to cause a shooting error, and particularly when the exposure time is longer than, for example, 1/60 second, a hand-shake is often noticeable. This tendency is particularly likely to occur in compact cameras for general amateurs. In many cameras with automatic exposure control of this type, the aperture and exposure time are automatically set by a program method according to the brightness of the subject, but the photographer sets the exposure time according to the difference in the brightness of the subject. This is because the same shooting operation is performed without being aware of the length, and in the case of a low-luminance subject, camera shake often occurs during the shooting operation. A photograph taken by such a camera-shake photography is a failure photograph, and it is often unnecessary to print it.

This camera-shake photography can occur even in a camera capable of recording information such as exposure data on a film as described above, but an input means for inputting the necessity of printing or the number of prints is provided. For cameras that use this, if it is known that hand-shake shooting has been performed after shooting, for those frames that have been shot with hand-shake shooting, instructions for not requiring printing and data to set the number of prints to 0 are input by this input means and recorded in the film. This makes it possible for the lab to read the print-free data recorded on the film, recognize that it is not necessary to print, and not print the failed photos that were taken with camera shake. You can avoid paying a fee.

[0005]

By the way, even a camera capable of recording the above information may be an inexpensive camera which is not provided with a manual input means for inputting the necessity of printing or the number of prints. In such a camera, an image frame that originally does not need to be printed is always printed due to camera shake photography, and the user pays a useless fee for the unnecessary print.

The present invention has been made in view of the above circumstances, and in the case of a photographed frame photographed by camera shake photographing, information of necessity of printing is automatically recorded as information indicating that printing is unnecessary, or the number of prints. It is an object of the present invention to provide a camera capable of recording unnecessary information as zero so as to prevent unnecessary printing and prevent unnecessary printing.

[0007] Further, in this way, a failed image is taken due to camera shake, and an image frame that is instructed not to be printed, that is, information of necessity of printing is recorded as information indicating that printing is unnecessary or information of the number of prints is zero. Even if it is a photographed frame recorded as, if it is not possible to retake the failed photograph for the next frame, it may be desired to print even the failed photograph. In order to enable printing in such cases,
The present invention further automatically determines whether or not the next frame has been re-shot for a hand-shake shot frame in which information indicating that printing is not to be performed is recorded as described above. It is an object of the present invention to provide a camera capable of rewriting data that does not need to be printed into data for printing.

[0008]

SUMMARY OF THE INVENTION A camera of the present invention is a camera having a recording means for recording in one part of a film information indicating the necessity of printing or the number of prints of exposed frames. A camera-shake detecting means for detecting camera-shake at the time of shooting, and an instruction means for inputting to the recording means information not to print the photographed frame based on the camera-shake detection signal output from the camera-shake detecting means. It is a feature.

Here, the necessity of printing is information indicating one of two whether to print or not to print, and the number of prints is information indicating the number of prints to be printed by an integer of 0 or more. Means that.

The information not to print means the information not to print in the information indicating the necessity of printing, and the information to instruct the number of prints indicates that the number of prints is zero. Means information to be instructed as.

The camera of the present invention comprises a re-shooting determination means for determining whether or not a re-shooting of the camera-shake has been performed on the next shooting frame after the camera-shake shooting, and this re-shooting determination means. If it is determined that re-imaging has not been performed by, the configuration further including a rewriting unit that rewrites the input information indicating that printing is not performed for the previous frame to information that is to be printed, For the shot frame for which you input the instruction not to print once,
The information to be printed may be rewritten.

The previous frame means the frame immediately before the frame for which it has been determined whether or not re-shooting has been performed, that is, the frame for which a camera shake has been taken.

The rewriting by the rewriting means to the information for printing may be directly to the recording means or to the instructing means.

The information to the effect of printing means, in the information indicating the necessity of printing, the information indicating the necessity of printing, and in the information indicating the number of prints, one or more arbitrary. Means the information indicating the number of prints as the number of prints.

The determination that the reshooting has not been performed by the reshooting determination means is specifically described in, for example, the following (1) to
From the viewpoint of ease of determination, it is preferable to perform it when at least one of the conditions listed in (6) is satisfied.

(1) The main switch of the camera is turned off after the camera shake is photographed and before the next photographing frame is photographed.

(2) The ratio or the difference between the shooting distance measured at the time of shooting the camera shake and the shooting distance measured at the shooting of the next shooting frame is equal to or more than a predetermined value set in advance.

(3) The ratio or the difference between the luminance of the subject photographed by camera shake and the luminance of the subject photographed or photographed on the next photographing frame is equal to or more than a predetermined value set in advance.

(4) The time from the end of image pickup due to camera shake to the start of image pickup of the next frame is equal to or greater than a preset value.

(5) The camera posture at the time of photographing a camera shake and the camera posture at the time of photographing the next photographing frame or at the time of photographing have changed with a displacement amount exceeding a preset predetermined range. That is, the difference is whether the camera was held vertically or horizontally.

(6) The aspect ratio of the screen with respect to a frame that has been photographed with camera shake is different from the aspect ratio of the screen with respect to the next frame. The difference in aspect ratio here means a difference between a so-called panoramic size aspect ratio and a full-size aspect ratio.

It should be noted that the recording means may be provided with an input means for arbitrarily inputting the necessity of the desired print or the desired number of prints, whereby the recording means can be provided in accordance with the presence or absence of the hand shake by the instructing means. Regardless of the input information, the information indicating the necessity of printing or the number of prints can be recorded on the film according to the intention of the photographer.

[0023]

According to the camera of the present invention, the camera shake detection means detects the camera shake during photographing, and based on the camera shake detection signal indicating that the camera shake has been detected,
Since the information indicating that the image of the hand-shake image is not printed is input to the recording means, the image-detected frame in which the hand shake is detected is not printed according to this instruction in the development lab. Therefore, useless printing can be prevented for the photographer, which is practically useful.

If it is determined that hand shake has occurred,
By giving a warning with a camera shake warning device such as an LED provided in the viewfinder or the like, the photographer can recognize that the photograph taken in the frame is a failed photograph. It is possible to re-shoot the same scene (subject etc.) as the failed shooting in the frame. When the next frame is re-photographed in this way, it is considered that the failed photo taken in the previous frame is usually unnecessary and does not need to be printed. If not, there is no substitute for the same scene, so it is often better to print even a failed photograph.

Therefore, according to the camera of the present invention, which is adapted to determine whether or not the image has been retaken,
If it is determined whether or not re-shooting has been performed on the frame next to the frame that was considered to be unsuccessful, and if it is determined that re-shooting has not been performed, then for the frame that recorded the information to instruct not to print Since the instruction to print is recorded by rewriting the information of the instruction to print and even the failed photograph in which the hand shake occurs, it is possible to print even the failed photograph.

[0026]

Embodiments of the camera of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view showing the main part of the camera of this embodiment, and FIG. 2 is a block diagram showing the electrical construction of the camera shown in FIG. The illustrated camera 1 is a camera body 2.
The zoom lens barrel 3 is incorporated in the zoom lens barrel 3, and the zoom lens barrel 3 is moved back and forth along the photographing optical axis 5 by operating the zoom lever 4 in the arrow direction to change the focal length of the photographing lens 6.
A switching knob 7 is provided on the upper surface of the camera body 2. When this switching knob 7 is set to the index “N”, the shooting screen size becomes full size (24 mm × 36 mm), and when set to the index “P”, the shooting screen size becomes panorama size (13 mm × 36 mm). The field of view observed by the finder 8 also has the same aspect ratio as the panorama size. And at the photo lab, when printing from frames shot in the panorama screen size,
Printing is performed with an aspect ratio that is about twice that when printing from a full size screen. Reference numeral 9 indicates a shutter button.

A displacement sensor 10 is built in the zoom lens barrel 3 near the tip thereof so as to detect the presence or absence of camera shake.

Reference numeral 24 in the figure denotes a microcomputer (M
PU), and the functional blocks are indicated by broken lines inside thereof. The operation of the MPU 24 is switched on / off by switching the main S / W 61.

Regarding the device for detecting the presence or absence of camera shake,
It is shown in Japanese Patent Application No. 6-162396 filed by the applicant of the present application, but one example will be described in detail in the present embodiment.

Signal voltage V obtained from the displacement sensor 10
_s is input to the MPU 24 via the amplifier 25 and the filter circuit 26. The filter circuit 26 is a high cut filter for removing high frequency noise. As shown in FIG. 3, details of the displacement sensor 10 include a case 12 in which a cylindrical hollow portion 11 is formed, a vibrating body 13 housed in the hollow portion 11, and an M.
R element (Magnetoresistive Element) 15
Substrate 16 to which is adhered. The vibrating body 13 is composed of, for example, a rod 17 having an appropriate elasticity such as a piano wire, a magnet 18 fixed to the tip of the rod 17, and a damper 19 for absorbing vibration, and the rear end of the rod 17 has an adjusting screw 20. Fixed to. The adjusting screw 20 is screwed into the case 12, and its rotation causes the magnet to rotate.
The distance between 18 and the MR element 15 can be adjusted.

The rod 17 is deformed when the camera body 2 makes a motion to change the direction of the optical axis 5, that is, when a force is applied to the camera body 2 to change the acceleration of the motion. The displacement of the camera body 2 due to camera shake is
Since it is most prominent in the direction in which the optical axis 5 is tilted along the vertical plane, the following description will be limited to an example in which camera shake detection is performed based on the displacement of the camera body 2 in this direction. By increasing the number, displacements in other directions can be detected in exactly the same manner.

When the rod 17 bends due to vibration, the MR element
The relative position between the magnet 15 and the magnet 18 changes, and the magnetic field strength for the MR element 15 changes. The MR element 15 is an element having a magnetoresistive effect in which the electric resistance changes according to the magnetic field strength,
The characteristics are shown in FIG. The horizontal axis in FIG. 4 is the MR element 15
The magnetic field strength applied to the MR element 15 is plotted on the vertical axis, and the resistance value of the MR element 15 decreases as the magnetic field strength increases. Then, when the magnetic field strength increases to some extent, the rate of change in resistance saturates. In addition, since the characteristics are symmetrical, it can be seen that the resistance value similarly decreases regardless of whether the magnet is the N pole or the S pole.

Next, the principle of converting the displacement amount of the magnet 18 into an electric signal will be described. FIG. 5 shows an MR element represented by an equivalent circuit.
15 schematically shows how the position of the magnet 18 changes with respect to 15, and further shows the correlation between the displacement of the magnet 18 and the signal voltage V _s obtained from the detection terminal 15a connected to the midpoint of the MR element 15. ing. The position B shown by the solid line is a state in which the displacement amount of the magnet 18 is zero and stopped. When the signal voltage at the position C where the magnet 18 is maximally displaced downward is V ₁ and the signal voltage at the position A when maximally displaced upward is V ₂ ,
Of the magnet 18, MR so that the signal voltage V _{0 at} the position B is at an intermediate potential between the linear signal voltages V _{1 and} V _2.
Adjust the position of the element 15.

When the magnet 18 is displaced toward the position A, the intermediate terminal 15a equivalently slides upward corresponding to the amount of displacement of the magnet 18, and the voltage dividing resistance value by the intermediate terminal 15a becomes large. Then, the signal voltage V _s becomes higher than the intermediate potential V ₀ . On the contrary, when the magnet 18 is displaced toward the position C, the signal voltage V _s becomes lower than the intermediate potential V ₀ .
As a result, the signal voltage V _s proportional to the displacement amount of the magnet 18 can be obtained from the intermediate terminal 15a.

An alloy of nickel and cobalt or an alloy of nickel and iron was used as the MR element exhibiting negative magnetoresistive characteristics whose resistance value decreases as the magnetic field strength increases as described above. There is metal film resistance. In addition, a semiconductor using an indium antimony compound has a positive magnetoresistive characteristic (a resistance value increases as the magnetic field strength increases).
It can also be used for 15. Further, by using a ferromagnetic material such as an iron plate as a pasting yoke on the back side of the MR element 15, for example, the side of the substrate 16 shown in FIG. 3, it is possible to improve the detection sensitivity.

It should be noted that the damper 19 is for immediately attenuating the vibration due to the deformation when the rod 17 is deformed due to the acceleration applied to the camera body 2. For example, a vibration absorber such as a sponge is provided in the hollow portion 11. It has a diameter substantially equal to the inner diameter. A coil spring is used instead of the rod 17, and the magnet 18 is fixed to the tip of the coil spring and the rear end is adjusted with a screw.
May be fixed at 20. In order to absorb vibration, the hollow part
You may use the oil damper etc. which filled the inside of 11 with oil.

The screen size switching mechanism 28 includes the switching knob 7
When is set to the index "P", the pair of mask plates 29 are moved to the positions shown in the figure, and the exposure range for the film 30 is switched to the panoramic screen size. When the index "N" is set, the mask plate 29 is retracted from the front surface of the film 30 and the exposure range for the film 30 is switched to full size. The image size switching mechanism 28 also sends a size switching signal corresponding to the set position of the switching knob 7 to the MP.
It is input to U24 and used as the information of the aspect ratio of the image.

The zoom operation section 32 inputs a zoom operation signal corresponding to the operation direction of the zoom lever 4 to the MPU 24.
As a result, the MPU 24 inputs a zoom drive signal for the wide-angle side or the telephoto side to the zoom control circuit 33. The zoom control circuit 33 causes the motor 34 to rotate forward / backward in response to the zoom drive signal to drive the zooming mechanism 35 to zoom the zoom lens barrel 3 along the optical axis 5. In addition, the zoom control circuit 33 is a motor
The zoom position signal corresponding to the rotational position of 34 is fed back to the MPU 24.

The release operation circuit 37 inputs a half-press / full-press signal of the shutter button 9 to the MPU 24. By inputting a half-press signal, the MPU 24 activates the distance measuring device 62, the autofocus device 63, and the photometric device 64 to measure the shooting distance.
Focusing of the taking lens 6, photometry of subject brightness, and calculation of proper exposure are performed. When full press signal is input, M
The PU 24 operates the shutter drive circuit 38 to drive the stepping motor 39 in accordance with the calculated proper exposure value.
Then, the shutter blades 40 are closed by the reverse rotation of the stepping motor 39, and one photographing is performed.

Further, the shutter drive circuit 38 is used as a measurement timing signal generating means when measuring the displacement of the camera body 2. That is, the shutter drive circuit 38
Inputs a shutter open signal to the MPU 24 at the moment the shutter blade 40 is opened, and inputs a shutter close signal to the MPU 24 at the moment the shutter blade 40 is closed. These signals can be obtained at the timing when the drive pulses for forward rotation and reverse rotation are supplied to the stepping motor 39, or can be obtained by photoelectrically detecting the position of the shutter blade 40, for example.

When it is detected that the camera shake has occurred while the shutter blades 40 are closed and the photographing is being performed, the MPU 24 inputs a warning signal to the driver 41, and the LED 42 is turned on. The LED 42 is incorporated in the viewfinder 8. Therefore, when there is camera shake, the photographer visually recognizes the lighting of the LED 42 in the viewfinder 8. Further, the data content of print necessity stored in the print data storage memory 54 is set to "0". When the camera shake is not detected, the warning by the LED 42 is not issued, and the data content of the print necessity is set to "1". The data content "0" indicating whether or not printing is necessary indicates that printing is not to be performed, while "1" indicates that printing is to be performed. This instruction means an instruction for printing to the developing station when the photographed film is developed and printed at the developing station, and in this embodiment, it is particularly used as an instruction for simultaneous printing.

The posture detecting device 65 is used for the camera body 2 at the time of photographing.
This is for detecting how the tilt was made.It detects whether it was in the horizontal position or the vertical position, and also detects the case of an oblique tilt that is in the middle between them. The angle is detected and the shooting posture information is output to the MPU 24.

The clock circuit 55 outputs time information indicating the current date and time, and inputs it to the MPU 24.

The unique data storage memory 56 stores, for example, camera type data (manufacturer name, model name, serial number, etc.)
Data unique to the camera, such as the open F value of the lens and the focal length of the lens, are stored and used as magnetic recording data, which will be described later, if necessary.

In the recording data storage memory 54, among the information detected / calculated by various devices / mechanisms connected to the MPU 24, the magnetic recording track 30 of the film 30 described later is recorded.
Shooting data to be recorded is stored in g.

Next, the photographic film 30 will be described with reference to FIG. A film delivery mechanism (not shown) is incorporated in the cartridge 53, and when the film is not used, the film 30 is wound up to the tip of the film cartridge 53.
When the patrone 53 is loaded into the camera body 2 and the film feeding mechanism including the feeding motor drive circuit 52, the feeding motor 51, and the feeding mechanism 50 of the camera rotates the patrone shaft in the film feeding direction, the film 30 Is configured to be delivered from the port section. Further, the cartridge 53 is also used as a case for accommodating the film 30 after development as it is long, and the film 30 can be fed and wound by rotating the cartridge shaft forward and backward. Therefore, the film 30 is returned to the user together with the patrone 53 while being stored in the patrone 53 as long.

On the back surface of the film 30, magnetic recording layers 30a and 30b are formed with a constant width along the upper and lower side edges thereof. Recording tracks 30c and 30d magnetically recorded by a film maker are formed on the magnetic recording layer of the film reader section. In the recording track 30c, manufacturing information or processing information for each photographic film which is not necessary for photographing operation is recorded, such as a film serial number, a photographic emulsion lot number, and a code representing a development prescription. On the recording track 30d, information regarding the photographic performance of the photographic film such as the type of the photographic film such as monochrome / color, the number of photographable images, ISO sensitivity, etc. is recorded.

The information written on the magnetic tracks 30c and 30d is read at various stages of handling the film 30.
For example, when the film 30 is loaded in the camera, the film feeding mechanism performs the initial feeding of the film reader portion. The information recorded in the recording track 30d during the feeding is recorded / reproduced by the recording / reproducing circuit 57 of the camera.・ Reading by the recording / reading device consisting of the recording circuit 58 and the magnetic heads 59, 60,
It is used as appropriate for taking photographs. The information written in the recording track 30c can be used by the film maker when trouble occurs, and the data on the development prescription can be used by the photo lab.

Recording track 30c of the reader section of the film 30
Recording areas of recording tracks 30e and 30f are further secured under 30d. The recording track 30e is used by the developing dealer to record information according to the order contents when the film 30 is handed over to the developing dealer after taking an image and an order for developing processing or printing is made. Recording track 30f
Is written by the magnetic recording device built in the camera when the film reader of the film 30 is initially fed.
The ID code of the camera, the ID code of the camera user, and the like are recorded on the recording track 30f.

Further, the film 30 is provided with one perforation 30P per frame (photographing frame). This perforation 30P is detected by a photo sensor (perforation sensor) 21 incorporated in the camera when the film 30 is fed after photographing, and this detection signal is used as a one-frame feeding completion signal. The perforation at the beginning of the film leader section is used for confirming the leading edge of the film when the film leader section is automatically fed, and for confirming the rewinding completion when rewinding the film after shooting all frames. To be

After photographing, the feed motor 51 is driven based on a drive signal from the feed motor drive circuit 52 controlled by the MPU 24.
Is driven, and the driving force is transmitted to the feeding mechanism 50 to feed the film 30 by one frame. Photographing data and the like stored in the recording data storage memory 54 is read during this one-frame feeding, and the read data is magnetically recorded under the photographed frame 30F by the above-described magnetic recording device. As a result, a recording track 30g similar to the recording track 30f is formed. The shooting data includes various information when shooting in the frame 30F, such as shooting date / time information, subject brightness information, shooting distance information, shooting posture information, aspect ratio, information indicating whether printing is required, and whether or not a flash is used. Information, aperture value, shutter speed, exposure correction value, and the like, and is data obtained from various devices with a built-in camera connected to the MPU 24.

The various types of data described above are written in the recording data storage memory 54 composed of a RAM when the shutter release is performed.

Next, the operation of the camera of this embodiment will be described with reference to FIG.
This will be described with reference to the block diagram of FIG. The shutter button 9 is pressed by the shooting operation and the shutter opening signal is input to the A / D converter 45 of the MPU 24, and the A / D converter 45 releases the shutter from the time when the shutter opening signal is received (step # 1 shown in FIG. 7). Until the time when the closing signal is received (step # 3), the filter circuit 26 outputs the signal voltage V _s at a constant sampling period.
Is read (steps # 2 to # 4) and converted into a digital value. The digitized signal voltage V _D is sequentially input to the displacement signal calculation unit 46. The displacement signal calculation unit 46,
The difference between the maximum value and the minimum value of the read signal voltage V _D is calculated and used as the absolute displacement signal V _def (step #
5), input to the comparison unit 47. The absolute displacement signal V _def thus obtained has a value corresponding to the swing width of the magnet 18.

The reference value calculator 48 is a screen size switching mechanism.
The reference value V _ref is calculated by receiving the size switching signal from 28 and the zoom position signal from the zoom control circuit 33 (step # 6). This reference value V _ref is a reference value for determining the presence or absence of camera shake, the size switching signal is smaller in the panorama size than in the full size, and the zoom position signal is in the telephoto side than in the wide angle side. Is smaller. It should be noted that the absence of camera shake in the presence or absence of camera shake does not necessarily mean that the camera body 2 is not displaced at all, and the image captured on the film is practically no problem even if there is a slight displacement, and practically no problem. It includes things that can be said to have no camera shake.

The comparator 47 uses the absolute displacement signal V _def as the reference value V
_A comparison is made with _ref (step # 7), and if V _def ≧ V _ref , that is, if the absolute displacement signal V _def corresponding to the displacement amount of the camera body 2 is equal to or greater than the reference value V _ref which is an allowable value, a camera shake warning is issued. It outputs a signal and an instruction signal. This warning signal is input to the driver 41, and the driver 41 lights up the LED 42 by this warning signal to indicate that there is camera shake (step # 10), while the instruction signal is input to the instruction unit 49 and the instruction unit 49 indicates the print necessity data as “0”,
That is, it is set to the instruction information not to print (step # 11).

When it is determined that the camera shake has occurred, it is also possible to set the print necessity data to "0" or "1" without setting the blank. When the print necessity data is blank in this way, it may be handled as an instruction not to print.

On the other hand, when V _def <V _ref , that is, when the absolute displacement signal V _def corresponding to the displacement amount of the camera body 2 is smaller than the reference value V _ref which is the allowable value, the camera shake warning signal is not output (step # 8), the instruction signal is the instruction section
The data is input to 49, and the instruction unit 49 sets the data indicating whether or not printing is necessary to "1", that is, the instruction information to print (step # 9).

As described above, the print necessity data is "0".
Alternatively, after being set to "1", other print data such as the above-mentioned shooting date / time information and subject brightness information is also stored in the print data storage memory 54 in the print data storage memory 54 together with the print necessity data. (Step # 12).

Further, in the camera of this embodiment, the instruction section 49
Functions as an instructing means for instructing the print data storage memory 54 whether or not printing is required.

After that, the frame (frame) 30F taken
Is fed by the film feeding mechanism for one frame, and the magnetic recording device stores the above-mentioned photographing date / time information including the instruction information of necessity of printing stored in the recording data storage memory 54, the subject luminance information, the photographing distance information, Data such as shooting posture information, aspect ratio, information on whether or not strobe is used, aperture value, shutter speed, and exposure correction value are read out, and the data is recorded as a recording track 30g under the captured frame 30F ( Step # 13) The process ends.

As described above, according to the camera of the present embodiment, it is possible to automatically set the print-unnecessary instruction information for the frames photographed by the camera shake photographing and record them in the photographed frames. Therefore, the photographed frame used for the camera-shake photographing is not printed, and therefore unnecessary printing can be prevented.

Of the information recorded on the recording track 30g, the information indicating the necessity of printing may be replaced with the information indicating the number of prints. For example, the camera is provided with a manual print number input means for inputting the number of prints of the film frames photographed, and the photographer operates the print number input means after the shutter operation, and 0 or 1 or more is required. Information indicating the number of prints may be used by inputting the number of prints. The information for instructing the number of prints is set to 0 in step # 7 of FIG. 7 as the information for instructing the number of prints in step # 7 of FIG. 7, and after the information is recorded in step # 13, When the photographer operates the number-of-prints input means to input one or more required number of prints, the film is rewound by one frame and the information recorded as 0 is rewritten to the number of input prints. do it. If printing is unnecessary, 0 may be input to set the number of prints to 0.

Further, regarding the camera having the above-mentioned structure for recording the information indicating the necessity of printing, a manual input means for inputting the necessity of printing is provided according to the photographer's intention, and whether or not the camera shake is caused. The necessity of printing may be recorded on the film regardless of the necessity. That is, depending on the displacement sensor, even when it is determined that the camera shake is to be taken, the photographer may not intend to take the photograph as a failure. For example, when a car during a race is panned, it is necessary to print it even if it is determined that the camera shake is taken. In such a case, a manual input means is useful.

Further, on the contrary, manual canceling means may be provided for canceling the number of prints inputted from the input means capable of instructing the number of prints in advance, depending on the presence or absence of camera shake.

A recording track 30g is formed in advance on the film regardless of the presence or absence of the above-described manual print number input means, input means, or cancel means, and the print track 30g is provided with information indicating whether or not printing is required. It is also possible to record, as a default value, information indicating that printing is performed or information indicating that one sheet is printed as information indicating the number of prints. In this case, only when it is determined that hand-shake shooting has been performed, the prerecorded print instruction information is rewritten to instruction information that does not require printing or instruction information that sets the number of prints to 0. You can also Further, this default value may be stored in advance in the ROM of the camera or the like, and may be read from this ROM each time photographing is performed.

By the way, the absolute displacement signal V from the comparison unit 47
As a result of comparison and comparison (step # 7) with _def and the reference value V _ref , when it is determined that the camera shake has occurred (V _def ≧ V _ref ), the LED 42 for displaying the camera shake warning is turned on, and the photographer displays the frame. It is considered highly likely that the photographed photograph is recognized as a failed photograph and the next frame of the frame is re-photographed for the same scene (subject) as the failed photograph. When re-shooting is performed, it is normally considered that the failed photo taken in the previous frame is unnecessary and printing is not required, but when re-shooting is not performed, the previous frame is deleted. It may be better to print even a failed photo taken in. That is, for example, there are cases where there is no chance to retake a photograph aiming at a moment when a wild bird flies, and in such a case, even a failed photograph in which camera shake has occurred may be worth printing.

The camera according to the second embodiment of the present invention shown in FIG. 8 determines whether or not re-imaging has been performed in the frame following the unsuccessful imaging, and once it is determined that re-imaging has not been performed, Is a camera that rewrites a frame in which an instruction not to print is recorded into an instruction to print, and records an instruction to print even a failed photograph in which the above-described camera shake has occurred.

The illustrated camera is different from the camera of the first embodiment shown in FIG. 2 in that it has two memories (memory A71, memory B72) instead of the recording data storage memory 54, and further, in the MPU 24, A signal output from the determination unit 73 that determines whether or not re-imaging has been performed in the frame next to the frame that has been unsuccessfully captured due to camera shake, and a signal output from the determination unit 73 when it is determined that re-imaging has not been performed is input. A rewriting unit that outputs to the instruction unit 49 an instruction signal for rewriting the data indicating whether or not printing is necessary to "1" and a signal for controlling the feeding of the film in the reverse direction to the feeding motor drive circuit 52. This is a configuration provided with 74 and. Memory A71, memory B
72 is a memory having the same function as the recording data storage memory 54, but differs from the recording data storage memory 54 in that it is used alternately for each frame to be fed.

The operation of the camera of this embodiment will be described with reference to FIG.
This will be described with reference to the flowchart of 10. The flowchart of FIG. 9 is the same as the operation of steps # 1 to # 11 of the flowchart (FIG. 7) of the camera of the above-described embodiment. It is assumed that the memory A71 stores the data at the time of shooting of the frame immediately before, which is recorded in advance on the recording track 30g of the frame immediately before.

When the shutter button 9 is pressed by a photographing operation and the shutter opening signal is the A / D converter of the MPU 24.
45, and the A / D converter 45 receives from the filter circuit 26 at a constant sampling period from the time when the shutter open signal is received (step # 1) to the time when the shutter close signal is received (step # 3). The signal voltage V _s is read (steps # 2 to # 4) and converted into a digital value. The digitized signal voltage V _D is sequentially input to the displacement signal calculation unit 46. The displacement signal calculation unit 46 calculates the difference between the maximum value and the minimum value of the read signal voltage V _D and sets it as the absolute displacement signal V _def (step # 5), and inputs it to the comparison unit 47. The absolute displacement signal V _def thus obtained
Is a value corresponding to the swing width of the magnet 18.

The reference value calculator 48 is a screen size switching mechanism.
The reference value V _ref is calculated by receiving the size switching signal from 28 and the zoom position signal from the zoom control circuit 33 (step # 6).

The comparing unit 47 uses the absolute displacement signal V _def as the reference value V
_It is compared and collated with _ref (step # 7), and when V _def ≧ V _ref , a camera shake warning signal and an instruction signal are output. This warning signal is input to the driver 41, and the driver 41 lights up the LED 42 by this warning signal to indicate that there is camera shake (step # 10), while the instruction signal is input to the instruction unit 49 and the instruction unit In step 49, the print necessity data is set to "0" (step # 11). On the other hand, when V _def <V _ref, the camera shake warning signal is not output (step # 8),
The instruction signal is input to the instruction unit 49, and the instruction unit 49 sets the data indicating whether or not printing is necessary to "1" (step # 9).

As described above, the print necessity data is "0".
Alternatively, after being set to "1", this print necessity data and other shooting data such as the above-mentioned shooting date / time information and subject brightness information are stored in the memory B72 (step # 14).

Next, under the control of the MPU 24, the memory A in which the data at the time of shooting for the immediately preceding frame is stored.
The data is read from 71 and input to the determination unit 73 (step # 15). The determination unit 73 determines the read 1
Whether or not the immediately previous shooting is a reshoot of the immediately preceding shooting by comparing and collating the immediately previous shooting data with the shooting data (data stored in the memory B72) of the immediately preceding frame. Is determined (step # 16).

When it is determined that the image is taken again, the frame (frame) taken immediately before is fed by the film feeding mechanism for one frame, and the magnetic recording device causes the memory B to be read.
Other shooting data including the print necessity instruction information stored in 72 is read (step # 21), and the data is recorded as a recording track 30g below the shot frame (step # 22). The process ends.

If it is determined that the picture is not taken again, the memory A
Of the data read from 71, it is checked whether the print necessity data is "0" or "1" (step # 17). If the print necessity data is "1", it means that the shooting in the frame immediately before was taken normally and the print was instructed. The frame taken immediately before is fed by the film feeding mechanism for one frame without any particular effect on the instruction data of the rejection, and the magnetic recording device instructs the printing necessity stored in the memory B72. Other photographing data including information is read (step # 21), the data is recorded as a recording track 30g under the photographed frame (step # 22), and the process ends.

If it is determined that the image is not taken again, and if the data indicating whether printing is necessary out of the data read from the memory A71 is "0", the image pickup in the immediately preceding frame has failed due to camera shake. This means that an instruction not to print is stored for shooting. In this case, originally, the frame taken immediately before should have been used for re-shooting, but it was determined that it was not retaken, so the failed photo that caused the camera shake was not retaken, Therefore, in order to print even such a failure photograph, the data rewriting signal is output from the determining unit 73 to the rewriting unit 74, and the rewriting unit 74 responds to this signal by the feeding motor drive circuit. A signal for controlling the feeding of the film in the reverse direction is output to 52. By this action, the film 30 is rewound by one frame, and the frame of the previous unsuccessful shooting is placed at the shooting preparation position (step # 18).

The rewriting section 74 further outputs to the instructing section 49 an instruction signal for rewriting the data "print necessity" into "1". The instruction section 49 sets the data of “print necessity” to “1”.
(Step # 19), the previous frame is fed by one frame by the film feeding mechanism, and the frame under the frame by the magnetic recording device together with other data read from the memory A71. Is recorded as a recording track on the recording medium (step # 20).

After feeding one frame, the frame photographed immediately before is fed by the film feeding mechanism for one frame, and the magnetic recording device displays the instruction information for printing necessity stored in the memory B72. Other photographing data including the data is read (step # 21), the data is recorded as a recording track 30g under the photographed frame (step # 22), and the process is ended.

As described above, according to the camera of the present embodiment, when the re-imaging is not performed in the frame next to the unsuccessful imaging due to the camera shake, the failure photograph taken in the frame immediately before the printing is printed. Can be instructed to.

The determination of whether or not reimaging is performed by the determination unit 73 is specifically not reimaging when at least one of the following conditions (1) to (5) is satisfied. It shall be done by

(1) The ratio or difference between the shooting distance measured at the time of shooting a camera shake and the shooting distance measured at the time of shooting the next shooting frame is equal to or greater than a predetermined value set in advance.

(2) The ratio or the difference between the luminance of the subject photographed by camera shake and the luminance of the subject photographed or photographed in the next photographing frame is equal to or more than a predetermined value set in advance.

(3) The time from the end of image pickup due to camera shake to the start of image pickup of the next frame is equal to or greater than a preset value.

(4) The camera posture at the time of photographing a camera shake and the camera posture at the time of photographing the next photographing frame or at the time of photographing have changed with a displacement amount exceeding a preset predetermined range.

(5) The aspect ratio of the screen with respect to a frame for which a camera shake has been taken is different from the aspect ratio of the screen for the next frame.

Even when the conditions listed in (1) to (5) above are not satisfied, for example, after the camera shake is taken, the main S / S of the camera is shot before the next shot is taken. If W61 is turned off, it may be determined that the image is not taken again.

The flow of the process for determining that the image is not taken again by turning off the main S / W 61 in this way is shown in FIG.
It is shown in the flowchart of 11.

After the main S / W 61 is turned off, MP
Under control of U24, a memory B72 that stores data at the time of shooting for the immediately preceding frame, that is, the last frame taken before the main S / W 61 was turned off.
Then, the data is read and input to the determination unit 73 (step # 23). At this time, the determination unit 73 determines that the main S / W 61
When it is determined that the re-imaging is not performed in response to the fact that is turned off, whether or not the print necessity data of the data read from the memory B72 is "0",
Or it is checked whether it is "1" (step # 24). If the print necessity data is "1", it means that the shooting in the previous frame was taken normally and an instruction to print was given. Therefore, it is necessary to print the previous frame. OFF processing (disconnection processing) of the main S / W 61 without any particular effect on the instruction data of NO
(Step # 29) to end the process.

If the print necessity data is "0",
The shooting in the immediately preceding frame is unsuccessful shooting due to camera shake, which means that an instruction not to print is stored. In this case, since it is determined that the frame shot immediately before should be re-shot, the main S / W 61 is turned off and reshooting is not performed.
The failed photograph that caused the camera shake is not retaken.Therefore, in order to print even such a failed photograph, the judgment unit 73 outputs a data rewriting signal to the rewriting unit 74, In response to this signal, the replacement unit 74 outputs a signal for controlling the feeding of the film in the reverse direction to the feeding motor drive circuit 52. By this action, the film 30 is rewound by one frame, and the frame of the previous unsuccessful shooting is placed at the shooting preparation position (step # 25).

The rewriting section 74 further outputs to the instructing section 49 an instruction signal for rewriting the data indicating whether printing is necessary or not to "1". The instruction unit 49 rewrites the data indicating whether or not printing is necessary to “1” (step # 26), and the previous frame is fed by one frame by the film feeding mechanism,
It is recorded as a recording track under the frame by the magnetic recording device together with other data read from the memory B72 (step # 27). The data read from the memory B72 is stored in the memory B72 as it is (step #
28), the main S / W 61 is subjected to processing (disconnection processing) (step # 29), and the processing ends.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a main part of a camera according to a first embodiment.

FIG. 2 is a block diagram showing an electrical configuration of the camera shown in FIG.

FIG. 3 is an exploded view showing a detailed configuration of a displacement sensor

FIG. 4 is a characteristic diagram showing a change in electric resistance depending on the magnetic field strength of the MR element.

FIG. 5 is a diagram schematically showing how the position of a magnet changes with respect to an MR element represented by an equivalent circuit.

FIG. 6 is a schematic view showing an example of a photographic film used in the camera of the present invention.

FIG. 7 is a flowchart for explaining the operation of the camera of the first embodiment.

FIG. 8 is a block diagram showing an electrical configuration of a camera of a second embodiment.

FIG. 9 is a flowchart (part 1) for explaining the operation of the camera of the second embodiment.

FIG. 10 is a flowchart (part 2) for explaining the operation of the camera of the second embodiment.

FIG. 11 is a flowchart showing processing when the main S / W is turned off.

[Explanation of symbols]

 10 Displacement sensor 24 Microcomputer 25 Amplifier 26 Filter circuit 30 Photo film 45 A / D converter 46 Displacement signal calculation section 47 Comparison section 48 Reference value calculation section 49 Indication section 50 Feed mechanism 51 Motor 52 Feed motor drive circuit 53 Patrone 54 Recording data storage memory 57 Recording / reproducing circuit 58 Recording circuit 59, 60 Magnetic recording head

Claims (4)

[Claims] 1. A camera having a recording means for recording, on a part of a film, information indicating whether printing of exposed photographic frames or the number of prints is performed, a camera shake for detecting camera shake during photographing of the photographic frames. A camera comprising: a detection unit; and an instruction unit for inputting to the recording unit information not to print the photographed frame based on a camera shake detection signal output from the camera shake detection unit. 2. A re-shooting determination unit that determines whether or not a re-shooting of the camera-shake is performed on a shooting frame subsequent to the shooting frame on which the camera-shake is shot, and 2. The camera according to claim 1, further comprising rewriting means for rewriting the inputted information indicating that printing is not performed for the previous frame to information indicating that printing is to be performed when it is determined that the processing has not been performed. . 3. The re-imaging determination means includes the following (1) to
The camera according to claim 2, wherein when at least one of the conditions listed in (6) is satisfied, it is determined that the re-imaging has not been performed. (1) The main switch of the camera is turned off after the camera shake is photographed and before the next frame is photographed, and (2) the photographing distance measured when the camera shake is photographed, and The ratio or difference with the shooting distance measured at the time of shooting of the shooting frame is equal to or greater than a predetermined value set in advance, (3) The brightness of the subject on which the camera shake is taken, and the next shooting frame Or the ratio or difference with the brightness of the photographed subject is equal to or greater than a predetermined value set in advance, (4) the time from the end of the photographing of the camera shake to the start of the photographing of the next frame. It is greater than or equal to a preset predetermined value, and (5) the camera posture at the time of shooting of the camera shake and the camera posture at the time of shooting or shooting at the next shooting frame are at least a predetermined range set in advance. Change with the amount of displacement , (6) and the aspect ratio of the screen with respect to the photographing frame in which the hand shake of the photographing is performed, the aspect ratio of the screen for the next photographic frame and be different. 4. An input means for arbitrarily inputting whether or not a desired print is required or a desired number of prints to the recording means regardless of information input to the recording means by the instructing means. The camera according to any one of claims 1 to 3, which is characterized.