JPH04269729A - Consecutive photographing camera - Google Patents

Abstract

PURPOSE:To selectively change the exposing intervals of each consecutive photographing screen according to a photographing aim. CONSTITUTION:This consecutive photographing camera is composed of plural exposing apertures 6a-6h linearly arranged along the feeding direction of a film 20, disk-like shutter plates 10 and 11, a stepping motor 12 rotating/driving the shutter plates, slits 15a, 15b, 16a, and 16b formed on the shutter plates 10 and 11, and an exposing interval changing means changing time required for that the slits 15a, 15b, 16a, and 16b, cross the exposing apertures 6a-6h of prescribed positions, by changing the frequency of a pulse signal supplied to the stepping motor 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous shooting camera that sequentially exposes images at short time intervals with a single release operation.

0002

[Prior Art] When a moving subject is photographed sequentially with a time lag, it is possible to obtain photographic images in which the movement stops at each photographing moment. It can be observed as an image, which is very convenient. Against this background, a continuous shooting camera described in, for example, Japanese Patent Laid-Open No. 2-105132 has been proposed. This camera has four exposure apertures, each of which is sequentially shot, arranged in a ``tag'' shape, and a single rotary shutter plate rotates once with each release operation. A slit formed in this shutter plate sequentially crosses the four exposure apertures, so that four consecutive frames of time-shifted frames are photographed. Then, the rotation speed of the shutter plate is adjusted so that the exposure interval for each continuous shot screen is equal, and the rotation speed of the shutter plate is adjusted depending on whether the subject is moving relatively fast, such as when the subject is batting in a baseball game, or relatively slowly, such as when dancing. It is said that it will change.

0003

[Problems to be Solved by the Invention] Incidentally, in the continuous shooting camera described in the above publication, the rotation speed of the shutter plate is changed according to the movement of the subject, but the movement speed generally slows down at the beginning and end of the movement. Moreover, the degree differs depending on the type of exercise. Therefore, just by increasing or decreasing the rotational speed of the shutter plate as a whole, as in the continuous shooting camera described above, it is not possible to take an optimal continuous shooting screen according to the movement of the subject. The present invention has been made to solve the problems of the prior art described above, and its purpose is to provide a continuous shooting camera that can selectively change the exposure interval of each continuous shooting screen depending on the purpose of shooting. .

0004

[Means for Solving the Problems] The continuous shooting camera of the present invention has the following features:
A plurality of exposure apertures arranged in a straight line along the film feeding direction, a disc-shaped shutter plate, a stepping motor for rotationally driving the shutter plate, and a stepping motor formed on the shutter plate and directed to one side of the shutter plate. an aperture that performs exposure across an exposure aperture at a predetermined position among the exposure apertures by rotation;
The apparatus further includes an exposure interval changing means for changing the time required for the aperture to cross an exposure aperture at a predetermined position by changing the frequency of a pulse signal supplied to the stepping motor. Hereinafter, the present invention will be explained in detail based on the illustrated embodiments.

[0005]

[Embodiment] In FIGS. 1 to 3 showing a continuous shooting camera using the present invention, eight photographic lenses 3a to 3h are installed in a horizontal array on the front surface of a camera body 2, and the light of each lens is The axes are parallel. Photographing lenses 3a-3
d is integrally molded into one lens plate 4 molded from a transparent resin such as acrylic, and the photographing lenses 3e to 3h
is integrally molded on the other lens plate 5.

[0006] Inside the camera body 2, there is a photographic lens 3.
A shutter substrate 7 in which eight exposure apertures 6a to 6h corresponding to a to 3h are formed is fixed. The inner diameters of these exposure openings 6a to 6h are all equal. Shafts 8 and 9 are implanted in the shutter substrate 7 at positions equidistant above and below a straight line connecting the centers of each of the exposure apertures 6a to 6h,
Each disc-shaped shutter plate 10, 11 is rotatably supported. Therefore, from the axis 8, the exposure apertures 6a and 6d are equidistant, and from the axis 9, the exposure apertures 6e and 6h are equidistant, and the exposure apertures 6f and 6g are equidistant. are equidistant.

Gears 10a and 11a are formed around the entire outer periphery of the shutter plates 10 and 11, and mesh with each other. A stepping motor 12 is fixed to the front side of the shutter board 7, and a drive gear 13 fixed to the shaft of the stepping motor 12 meshes with a gear 10a of the shutter plate 10. Further, a reflective photosensor 14 is attached to the shutter substrate 7, and an opening 7a of the shutter substrate 7 is attached.
The reflective piece 17 fixed to the shutter plate 10 is photoelectrically detected through the lens.

As shown in FIG. 4, the shutter plate 10
, 11 each have two slits 15a, 15b,
16a and 16b are formed. Slit 15a, 1
5b is on the same straight line from the center of the shutter plate 10,
Similarly, the slits 16a and 16b are on the same straight line from the center of the shutter plate 11. In addition, the slits 15, 15b
Alternatively, the slits 16a and 16b do not necessarily have to be on the same straight line from the center of each shutter plate 10 and 11, and can be actively shifted in consideration of the timing of photographing.

These slits 15a, 15b, 16a
, 16b slit length (radial length of shutter plate)
is larger than the inner diameter of the exposure apertures 6a to 6h. Also, the slit width of each outer slit 15a, 16a (width in the circumferential direction of the shutter plate) and the inner slit 15
The slit widths of b and 16b vary depending on the distance from the axes 8 and 9, respectively.For example, the slit width of the outer slit 15
If the slit width of slits a and 16a is 1 mm, the slit width of inner slits 15b and 16b is about 0.7 mm.

As the shutter plate 10 rotates, the slit 15a moves clockwise from the illustrated origin position P0, and as it passes through the first exposure position P1, the exposure aperture 6a is opened and closed. When the shutter plate 10 continues to rotate and the slit 15b passes through the second exposure position P2, the exposure aperture 6b is opened and closed. And the slit 15b,
The exposure apertures 6c and 6d are sequentially opened and closed each time the aperture 15a sequentially passes through the third exposure position P3 and the fourth exposure position P4.

When the shutter plate 10 starts rotating clockwise, the shutter plate 11
rotates counterclockwise. After the slit 15a passes the fourth exposure position P4, the slit 16a of the shutter plate 11 moves from the origin position Q0 to the fifth exposure position Q5.
The exposure aperture 6e is opened and closed during the rotation. The rotation of the shutter plate 10 is continued until the slits 15a and 15b reach the origin position P0 again, so the shutter plate 11 continues to rotate counterclockwise in conjunction with this, and reaches the sixth exposure position Q6 and the seventh exposure position, respectively. Exposure position Q7, 8th
At exposure position Q8, exposure openings 6f, 6g, and 6h are sequentially opened and closed by slits 16a and 16b.

The time from when the first exposure aperture 6a is opened and closed to when the last exposure aperture 6h is opened and closed can be reduced to 1 second (FAST) by switching the rotational speed of the stepping motor 12, as will be described in detail later. mode), 2 seconds (S
LOW mode) or 0.3 seconds (SUPERFAST mode) can be selected.

As shown in FIG. 3, between the cartridge loading chamber 18 and the winding chamber 19 provided in the camera body 2, there are partitions 8 separated by partition walls along the feeding direction of the film 20. Exposure frames 21a to 21h are formed. From the exposure frame 21a to the exposure frame 12d, and the exposure frame 21
The horizontal length from e to the exposure frame 21h is 3.
The horizontal length is the same as one frame of a 5mm full-size screen. The vertical length of each of the exposure frames 21a to 21h is approximately half that of a 35 mm full-size screen, and each exposure frame 21a to 21h is provided at a position where the vertical center of the film is exposed. Therefore, when photographing is performed through such exposure frames 21a to 21h, as shown in FIG. Photography screens 24a to 24d, 24e
~24h will be exposed.

[0014] It should be noted that each four-frame continuous shooting screen 24a
The horizontally long screen that connects ~24d or 24e ~ 24h is the screen size for panoramic printing obtained when shooting by shielding the top and bottom sides of the screen for one full-size frame with a width of 6 mm ( For example 13.7±0
．． 4mm x 36mm). As shown in FIG. 3, a space is created between the continuous shooting screen 24d and the continuous shooting screen 24e by the central partition wall 25. Furthermore, the horizontal sizes of the four continuous shooting screens 24a, 24d, 24e, and 24h are the same as those of the other continuous shooting screens 24b, 24c, 24f, and 24h.
The shape of the exposure frame is determined so that it is longer than g.

The film 20 is wound up by the counterclockwise rotation of a spool 28 provided in the winding chamber 19, and the film 20 is wound up by a cartridge 29 loaded in the cartridge chamber 18.
drawn from. A film winding motor 30 is built into the spool 28, and its driving force is transmitted to a film feeding mechanism 32 via a gear 31. The film feeding mechanism 32 receives a driving force from a gear 31, drives the spool 28 through a gear 33 when winding the film, and drives the rewinding fork 3 through a gear 34 when rewinding the film.
Drive 5.

A sprocket 36 is engaged with the film perforation 20a and is rotated as the film 20 is fed. The feeding length of the film 20 is the sprocket 36.
and detected by the encoder 39. encoder 3
Reference numeral 9 includes a signal plate 37 that is integrally fixed to the sprocket 36 and has radially formed through-hole slits, and a photosensor 38 that photoelectrically detects the rotation of the signal plate 37. The photosensor 38 counts the number of through-hole slits passed during film winding, and generates a stop signal for the motor 30 at the moment the amount of film 20 fed reaches two 35 mm full-size frames.

FIG. 5 is a block diagram showing the circuit configuration of the continuous shooting camera, and the shooting sequence is executed by the MPU 40.
is controlled by. The MPU 40 receives a release signal input from the release signal generation circuit 42 when the shutter button 41 is pressed and starts a photographing sequence.

The continuous shooting interval setting circuit 43 selects 8 frames for 1 second (FAST mode), 2 seconds (SLOW mode), or 0.3 seconds (SUPER) according to the set position of the frame number setting knob 44.
FAST mode) for continuous shooting. Note that the index "F" shown in FIG. 2 is the FAST mode, and the index "S"
" is SLOW mode, index "S.F" is SUPERFA
ST mode is shown respectively.

When the number of frames setting knob 44 is slid,
Brush contact piece 4 provided integrally with frame number setting knob 44
5 (indicated by a broken line) is moving on the lower printed circuit board 46 and the brush contact piece 45 is in contact only with the print contact piece 46a, the continuous shooting interval setting circuit 43 is in a no-signal state, and the FAST mode is set. When both the contact piece 46a and the print contact piece 46b are contacted, this short circuit signal is input to the continuous shooting interval setting circuit 43, and the SLOW mode is activated. The signal is input to the continuous shooting interval setting circuit 43 and the SUPERFAST mode is set. In this manner, when the short-circuit signal is not input to the continuous shooting interval setting circuit 43, the most frequently used FAST mode is set, which is effective even in the event of a failure such as poor contact of the brush contact piece 45.

The R/L mode switching circuit 47 switches the shutter plate 10 during continuous shooting according to the set position of the R/L setting knob 48.
, 11 are switched between forward rotation and reverse rotation. That is, when the person who is the subject of continuous shooting performs right-handed movements, by setting the R/L setting knob 48 to index R, the R/L mode switching circuit 47 inputs a right-handed mode signal to the MPU 40. , the R/L setting knob 48 is the index L.
When set to , a left-handed mode signal is input to the MPU 40. A sequence program for continuous shooting is stored in the program ROM 49, and a continuous shooting sequence is executed in response to signals from the above-described continuous shooting interval setting circuit 43 and R/L mode switching circuit 47.

The driver IC 50 receives control signals and clock pulses from the MPU 40 and supplies drive pulses to the stepping motor 12. As is well known, since the stepping motor 12 rotates in proportion to the number of drive pulses supplied, the rotation angle can be determined by the number of drive pulses, and by changing the frequency of the drive pulses, i.e. The speed of rotation can be controlled by changing the pulse interval.

[0022] FAST, SLOW, SUPERFAST
In FIG. 6 showing the state of continuous shooting in each mode, in each mode, when the stepping motor 12 is started up, the pulse interval of the drive pulse supplied to the stepping motor 12 is gradually shortened to, for example, 16 ms, 8 ms, and 4 ms. The rotation speed of the motor 12 is accelerated. Before the exposure of each of the exposure apertures 6a to 6h, the pulse intervals are gradually shortened and accelerated to, for example, 8 ms, 4 ms, and 2.3 ms, and then during the exposure, the pulse intervals are driven at a constant pulse interval of, for example, 2.3 ms. After exposure, drive pulses with gradually longer pulse intervals of 2.3 ms, 4 ms, and 8 ms are supplied to slow down the speed. This prevents so-called step-out of the stepping motor, and the rotational speeds of the shutter plates 10, 11 become uniform when the slits 15a, 15b, 16a, 16b cross the corresponding exposure openings 6a to 6h. Also, after shooting the last continuous shooting screen 24h, set the pulse interval to 2.3, for example.
After gradually increasing the speed to 8 ms, 4 ms, and 8 ms to decelerate,
The shutter plate 1 is moved relatively slowly with a constant drive pulse of ms.
0 and 11 are returned to the origin position.

In proportion to the distance from the center of rotation, the peripheral speed of the inner slits 15b, 16b of each shutter plate 10, 11 is slower than that of the outer slits 15a, 16a.
For example, the time required for the slit 15a to pass through the exposure aperture 6a (shutter time) Δt1 and the slit 15b
Comparing the time Δt2 required for the light to pass through the exposure aperture 6b, we find that Δt1 <Δt2 (for example, Δt1 = 9
．． 2ms, Δt2 = 11.5ms). Therefore, the inner diameter of the exposure openings 6a, 6b and the slits 15a, 1
If the slit widths 5b are kept the same, the exposure amount of the continuous shooting screen 24b will be larger than that of the continuous shooting screen 24a. To deal with this, in this embodiment, the outer slits 15a, 16
For the slit width of a, the inner slits 15b and 16b
The slit width is narrowed according to the distance from the axes 8 and 9, so that the exposure amount of each continuous shooting screen 24a to 24h is constant. Of course, the inner slits 15b and 16
It is also possible to keep the exposure amount constant by making the inner diameters of the exposure apertures 6b, 6c, 6f, and 6g through which the light beam b passes narrower than the inner diameters of the other exposure apertures.

In FIG. 7 showing the relationship between the golf swing and the exposure interval, in consideration of the fact that the movement speed becomes slow at the beginning and end of the movement, in the FAST mode and SLOW mode, continuous shooting is performed after shooting the continuous shooting screen 24a. The time interval between photographing the screen 24b and the time interval between photographing the continuous shooting screen 24h after photographing the continuous shooting screen 24g are set long. That is, the exposure interval of the continuous shooting screens 24a to 24h is set to, for example, 287.6ms and 77.4ms in FAST mode.
ms, 63.6ms, 70.9ms, 87.6ms, 7
7.4ms, 263.6ms, and in SLOW mode, for example, 487.6ms, 177.4ms, 163.
6ms, 170.9ms, 187.6ms, 177.4
ms, 463.6 ms. This allows F.A.
The ST mode covers everything from just before the head reaches the top position to the finish, and allows detailed continuous shooting near impact. Additionally, the SLOW mode can cover the entire take-back from the beginning to the finish, making it suitable for photographing almost the entire movement of the subject. In addition, in SUPERFAST mode, one shot takes 0.3 seconds, so it is suitable for aiming only at the moment of impact, for example, from immediately before shooting the first continuous shooting screen 24a to immediately after shooting the last continuous shooting screen 24h. The pulses are driven at a constant pulse interval, for example, 2.3 ms. In addition, in the figure, examples of different swing patterns are shown by solid lines, broken lines, and dashed-dotted lines for reference.

The number of drive pulses supplied from the driver IC 50 to the stepping motor 12 is counted by a counter 51. Then, the MPU 40 monitors the count value of the counter 51 and sends a control signal to the driver IC 50 every time the count value reaches a predetermined value. And driver IC
Reference numeral 50 controls the speed and rotation direction of the stepping motor 12 by changing the frequency and polarity of the drive pulses supplied to the stepping motor 12 in accordance with the control signal. Note that when one continuous shooting sequence is completed and the shutter plate 10 returns to the original position, a reset signal is input to the counter 51, and the count value is cleared to "0".

Further, the photosensor 14 is connected to the shutter plate 10.
When the reflecting piece 17 fixed to the mirror 17 is detected, a detection signal is sent to the MPU 40. Then, the MPU 40 monitors the detection signal from the photosensor 14 and stops the shutter plate 10 at the original position. The reference numeral 53 indicates the film feeding motor 3.
A driver driving 0 is shown.

The operation of the continuous shooting camera with the above configuration will be explained. When continuously photographing a right-handed person's golf swing from just before the top position to the follow-through position at 8 frames per second, set the R/L setting knob 48 to the index "R" and set the number of frames setting knob 44 to the index. Set it to "F". As a result, the shutter plate 10 is rotated clockwise in FIG. 1, and the stepping motor 12 is controlled to take continuous pictures at 8 frames/second.

As shown in FIG. 7, the shutter button 41 is pressed just before the subject starts backswinging and the head reaches the top position. As a result, the stepping motor 12 starts driving, and the shutter plate 10 rotates clockwise in FIG. 1 or 4 via the drive gear 13, and the shutter plate 11 rotates counterclockwise. As the shutter plate 10 rotates from the origin position P0 shown in FIG. 6d is sequentially opened and closed, and the continuous shooting screens 24a, 24b, 24c, and 24d are exposed to the film 20. Immediately after the continuous shooting screen 24d is exposed, the shutter plate 11 moves from the origin position Q0 to the fifth exposure position Q5.
, and continues to the 6th to 8th exposure positions Q6, Q7, Q
8, the slits 16a, 16b
The exposure apertures 6e, 6f, 6g, and 6h are sequentially opened and closed.

When the shutter button 41 is pressed at the time "T=0" shown in FIG. 6, the driver IC 50 supplies drive pulses whose frequency gradually increases to the stepping motor 12, thereby accelerating the stepping motor 12. It is driven while By driving the stepping motor 12,
The shutter plate 10 is rotated while increasing the speed, and the origin position P0
At a time point T1, which is rotated by 30 degrees, the slit 15a is rotated at a constant high speed, and the slit 15a reaches the exposure aperture 6a, and the continuous shooting screen 24a is first photographed. Immediately after that, the driver IC 50 generates a drive pulse whose frequency gradually decreases.
That is, driving pulses with gradually increasing pulse intervals of 2.3 ms, 4 ms, and 8 ms are supplied to the stepping motor 12, and the rotational speed of the stepping motor 12 is reduced. Next, driving pulses with a particularly long pulse interval, for example, 264 ms, are supplied to bring the stepping motor 12 into a nearly stopped state for a moment, and then driving pulses whose frequency gradually increases are supplied to the stepping motor 12 again, and at the time of T2, The continuous shooting screen 24b is photographed at the same rotational speed as T1. Thereafter, continuous shooting screens 24c, 24d, . . . , 24h are taken at each time point T3, T4, .

When the last continuous shooting screen 24h has been photographed, the stepping motor 12 is gradually decelerated and then driven at a constant speed by a constant drive pulse with a pulse interval of, for example, 8 ms, and the shutter plates 10 and 11 are moved at a relatively low speed. It is rotated at a constant speed with high torque. Shutter plates 10 and 11 are 360°
When the motor rotates and returns to the original position, the photo sensor 14 photoelectrically detects the reflective piece 17 and the stepping motor 12 is stopped.

When the 8-frame continuous shooting screen 24a to 24h has been photographed on the film 20 in this way, the film feeding mechanism 32 is activated in response to the photographing completion signal, and the motor 30 is driven to stop feeding the film 20. Begins. Then, when the encoder 39 detects that two 35 mm full size frames have been fed, the motor 30 is stopped and the camera enters a standby state for the next photographing.

FIG. 8 conceptually shows the film 20 photographed as described above. As already explained, the four-frame continuous shooting screens 24a to 24d have the same size as the screen size for panoramic printing. Therefore, by performing the conventional panorama print processing, the continuous shot screens 24a to 24d are printed in the size of two service prints, and the prints of the individual continuous shot screens 24a to 24d are also printed in a sufficient size. Note that during the panoramic printing process, a negative mask having the aperture size shown by the two-dot chain line 55 in the figure is used, and vignetting occurs at the ends of the continuous shooting screens 24a and 24d. However, since the horizontal sizes of the continuous shooting screens 24a and 24d on the film 20 are set to be large in advance, each frame of the printed photograph 57 has the same size as shown in FIG.

[0033] Since the panoramic print service is currently performed in units of one frame on a 35 mm full-size screen, as shown in Fig. 9, continuous print photographs 57 and 58 of four frames are printed from the continuous shooting screens 24a to 24h. can get. Therefore, if you connect the two print photos 57 and 58, it will become a continuous photo by one continuous shooting, and each frame will be arranged horizontally over time, so it is very easy to reproduce the continuous shooting scene. advantageous to

Further, in the above-described continuous shooting camera, it is also possible to perform continuous shooting by rotating the stepping motor 12 in the reverse direction. For example, when continuously photographing the golf swing of a left-handed player, the R/L setting knob 48 is set to the index "L" and the shutter button 41 is pressed. If the left-handed mode signal is input from the R/L mode switching circuit 47 at the time the release signal is input, the MPU 40 sends a control signal for reverse drive to the driver IC 50, and the driver IC
50 supplies driving pulses of opposite polarity to the stepping motor 12.

When the stepping motor 12 is reversed,
The shutter plate 10 is rotated counterclockwise, the shutter plate 11 is rotated clockwise, and the continuous shooting screens 24h, 24g, 24f, .
. . . Photographing is performed in the order of 24a. Then, for each continuous shooting, two print photos 6 as shown in Fig. 10 are printed.
0.61 is obtained. In this way, by arranging each frame sequentially from the right side over time, it is possible to reproduce an easy-to-read continuous shooting scene in accordance with the direction of movement of a left-handed player.

[0036] If you want to take continuous pictures of a movement that continues for about 2 seconds, for example from the beginning of the take-back of a golf swing to the finish, set the frame number setting knob 44 to the index "S". Set it and shoot in SLOW mode. As a result, a short circuit signal between the print contact piece 46a and the print contact piece 46b is input to the continuous shooting interval setting circuit 43, and a 4 frame/second control signal is input from the MPU 40 to the driver IC 50. The driver IC 50 maintains the rotational speed of the shutter plates 10 and 11 constant during exposure, and further reduces the rotational speed between exposures so that the shutter seconds Δt1 and Δt2 (FIG. 6) can be obtained. Make it. As a result, as shown in FIG.
After the continuous shooting screen 24a is photographed at the point in time, the FAST
At the time of T3 of the mode (for example, 437.4 m from T = 0)
TS2 time point (for example, 548.5 m after 548.5 m)
The continuous shooting screen 24b is captured after 177.4 ms has elapsed (after 177.4 ms).
Photographing of c is performed. Hereinafter, 24d,..., 24h are, for example, 163.6ms, 170.9ms, 187.6ms
, 177.4ms, and 463.6ms.

When shooting in the SUPERFAST mode with the frame number setting knob 44 set to the index "S.F", the stepping motor 12 decelerates after the continuous shooting screen 24a is shot as in other modes. The shutter plates 10 and 11 are driven at the same pulse interval as when shooting, for example, a drive pulse of 2.3 ms, and the shutter plates 10 and 11 are driven at the end of shooting the last continuous shooting screen 24h (for example, when 286.3 ms has elapsed from T=0).
rotated at the same speed until After the continuous shooting screen 24h is photographed, the shutter plates 10 and 11 are decelerated in the same way as in other modes, and then rotated at a constant speed and returned to the original position.

In the embodiment described above, the film feeding system employs an automatic winding system using a motor, and upon receiving a photographing completion signal, the film feeding mechanism 32 is operated, the motor 30 is driven, and the film 20 is rolled up. However, if a manual film winding method is adopted, the shutter plates 10 and 11 will be rotated at a constant speed with relatively high torque after the continuous shooting screen 24h has been taken. , the winding release mechanism may be operated in conjunction with the shutter plate 10 to release the winding.

In the embodiment described above, three types of continuous shooting modes are possible, but the present invention is not limited to this, and two or four types may be used. Also,
We have explained an example in which two shutter plates are used to capture eight consecutive frames in two frames of a 35mm full-size screen in one continuous shooting. You can take a picture of the screen, or you can take a continuous shot of 8 frames using 8 shutter plates, each with a slit for exposure, or you can change the length of the film used for one shot. It is also possible to further increase the number of frames in the continuous shooting screen by increasing the number of frames to three frames on a 35mm full-size screen.

[0040]

Effects of the Invention As described above, the continuous shooting camera of the present invention employs a stepping motor that can obtain any rotational speed by driving pulses, and the aperture of the shutter plate aligns with the exposure aperture at a predetermined position. Since the time required to cross the line is changed, continuous shooting can be performed at the optimum exposure interval depending on the purpose of shooting.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of main parts of a continuous shooting camera according to the present invention.

FIG. 2 is an external view of the continuous shooting camera of the present invention.

FIG. 3 is a sectional view of essential parts of the continuous shooting camera shown in FIG. 2;

FIG. 4 is an explanatory diagram of the function of the shutter plate.

FIG. 5 is a block diagram schematically showing the electrical configuration of the continuous shooting camera.

FIG. 6 is a timing chart showing how the shutter plate rotates.

FIG. 7 is a timing chart showing the relationship between golf swing and exposure interval.

FIG. 8 is an explanatory diagram of a film on which consecutive shots are taken.

FIG. 9 is an explanatory diagram showing an example of printed photographs obtained with the continuous shooting camera of the present invention.

FIG. 10 is an explanatory diagram showing an example of printed photographs obtained with the continuous shooting camera of the present invention.

[Explanation of symbols]

6a to 6h Exposure opening 7 Shutter substrate 10, 11 Shutter plate 15a, 15b, 16a, 16b Slit 12
Stepping motor 20 Film 24a to 24h Continuous shooting screen 40 MPU 43 Continuous shooting interval setting circuit 44 Frame number setting knob 45 Brush contact piece

Claims (1)

[Claims] 1. A plurality of exposure apertures arranged in a straight line along the film feeding direction, a disc-shaped shutter plate, a stepping motor for rotationally driving the shutter plate, and a shutter plate formed on the shutter plate and provided with a shutter plate. By rotating the plate in one direction, an aperture that performs exposure across the exposure aperture at a predetermined position among the exposure apertures, and by changing the frequency of the pulse signal supplied to the stepping motor, the aperture is exposed at a predetermined position. 1. A continuous shooting camera comprising: exposure interval changing means for changing the time required to cross an aperture.