JP3311804B2 - Imaging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging device.

[0002]

2. Description of the Related Art FIG. 7 is an external view of a conventional multi-frame imaging apparatus. This device uses the shutter button 76
By pressing, the operation of plural-frame cutting is performed. The inside of the imaging unit 70 includes imaging means 71, 72, 73,
74, one frame of the film is divided into quarters. Each of the image forming means 71, 72, 73, 74 is provided with a lens, a diaphragm, and a shutter film. These imaging means 71, 72, 73, 74 operate at different timings. The operation will be described below with reference to FIG.

When the shutter button 76 is pressed, first, the aperture of the lens portion of the image forming means 71 operates so as to obtain an appropriate exposure, then the shutter film is opened, and the first image is recorded. The video at this time is the portion shown in FIG.

Next, the operation of the image forming means 72 is started with a delay of several ms to several s by a delay circuit. Here, the aperture of the lens portion of the image forming means 72 operates so as to obtain an appropriate exposure, then the shutter film is opened, and the second image is recorded. The image at this time is the portion shown in FIG.

Further, after a delay of several ms to several s by the delay circuit, the next operation of the image forming means 73 is started. As described above, images are sequentially recorded, and images as shown in FIGS. 8 (3) and (4) are obtained.

[0006] With the above operation, four consecutive images are each reduced to one quarter by one operation of the shutter button.
And a single frame image corresponding to one skip film is created.

[0007]

By the way, the conventional imaging apparatus has only the function of continuous photographing as described above, and the range of use of the photographer is limited. Therefore, if one-shot shooting is also required, the photographer must prepare two imaging devices, one for single-shot shooting and the other for continuous shooting, and use them separately for each scene. This is expensive, time-consuming and inconvenient.

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and an image pickup apparatus having both single-frame shooting and multiple-frame shooting functions, which can be selectively used with a simple operation. The purpose is to provide.

[0009]

In order to achieve the above object, an image pickup apparatus according to the present invention comprises an optical system in which a plurality of lenses, an aperture, and a shutter are arranged, and a film placed on an image forming surface of the optical system. A control signal for supplying a drive signal to each of an aperture driver for driving the aperture and a shutter driver for driving the shutter, and for applying a frame feed drive to a frame feeding means for feeding the film one by one. In the image pickup apparatus provided with a control unit for supplying an image, the aperture and the shutter are formed of liquid crystal elements, each of which is configured to be able to be dividedly driven into a plurality of areas opposed to each other, and a single-frame shooting mode or a plurality of frames. Selecting means for selecting any one of the photographing modes, and inputting a drive signal to the lens along the optical axis; A control unit that supplies a drive signal to the lens driver when the multi-frame shooting mode is selected, and includes a lens driver, an aperture driver, a shutter driver, and a frame feed unit. It is characterized by being configured to project one or a plurality of images at different timings on one frame of the film by the interlocking control.

[0010]

By inputting a photographing mode, drive control for single frame photographing or plural photographing can be selected.

[0011] The position and inclination of the lens are set based on the input photographing mode, while the shutter and the aperture formed by the liquid crystal element are formed with an arbitrary shape and an arbitrary number of opposing divided areas. And it becomes drivable. That is, the control unit controls the lens, the aperture, and the shutter in conjunction with each other, and an image is displayed on a predetermined portion of the film.

[0012]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, and FIG. 2 is a hardware configuration diagram of an optical system of an image pickup apparatus according to the embodiment of the present invention. The configuration of the embodiment of the present invention will be described below with reference to these drawings.

As shown in FIG. 2, a lens 11 is located on the optical axis.
a, 11b, a liquid crystal diaphragm 9, a liquid crystal shutter 7, and a film 13 placed on an image plane. The driving of these optical systems is controlled by a control unit 4 such as a microcomputer. As input means to the control unit 4, there are a mode information input means 1 for selecting a mode, a shutter information input means 2 for operating a shutter, and a skip information input means 3 for skipping one film. Is provided.

A liquid crystal shutter driver 6 for driving the liquid crystal shutter 7 includes a liquid crystal diaphragm 9.
Is connected to a liquid crystal diaphragm driver 8 for driving the liquid crystal diaphragm 9. Each of the liquid crystal shutter 7 and the liquid crystal diaphragm 9 is constituted by a liquid crystal panel. Therefore, the liquid crystal element is arbitrarily driven by the respective drivers of the liquid crystal shutter 7 and the liquid crystal stop 9, and
A drivable divided region having a desired shape and a plurality of regions can be formed. Further, the control unit 4 instructs the liquid crystal shutter driver 6 and the liquid crystal diaphragm driver 8 to control the divided regions of the liquid crystal shutter 7 and the liquid crystal diaphragm 9 that are opposed to each other via the delay circuits 5a and 5b in accordance with the mode information. A drive signal is provided. Predetermined time intervals of the liquid crystal shutter 7 and the liquid crystal diaphragm 9 are controlled by the delay circuits 5a and 5b, and the diaphragm operation and the shutter operation are sequentially performed in conjunction with each other.

Further, the control section 4 supplies a drive signal to the lens driver 10 so that a plurality of lenses are respectively set at predetermined positions according to the mode information. As shown in FIG. 3 (a), the lens can be freely moved and tilted along the optical axis. FIGS. 3B and 3C show a state in which the inclination of the lens is changed. By changing the inclination or movement of the lens in this way, the imaging position can be changed in the same plane.

Further, the control unit 4 supplies a drive signal to the film feed driver 12 based on the shutter information 2 and the skip information 3 so that the next frame 13 is loaded.

The operation of the embodiment of the present invention having the above configuration will be described below for each mode. First, when the single-frame shooting mode is input, the liquid crystal diaphragm 9 uses the entire liquid crystal panel to change the amount of incident light to be appropriate as shown in FIG. 4A, and the lens is movable. The photographer presses the shutter button in a state where the camera is stopped without being operated. When a shutter input is made, the entire liquid crystal panel for shutter is changed from the state of (1) to the state of (2), that is, the light transmission state, for several hundred to several thousandths of a second as shown in FIG. The video is recorded on one film. The photographing state at this time is shown in FIG.
(A). Thereafter, when a shutter operation end signal is input to the microcomputer, the microcomputer inputs a signal to the film feeder, so that the next film is loaded.

Next, when the continuous shooting mode is input,
The movable lens control signal is sent from the microcomputer to the lens driver 10.
And the lens is moved to a predetermined position, and the lens is set at a predetermined angle as shown in FIG. 3B or 3C. That is, the arrangement of the lenses is appropriately set in accordance with the size and position of the image according to the division state of the liquid crystal diaphragm 9 and the liquid crystal shutter 7.
In this division control, as shown in FIG. 4 (b), each of the four divided aperture areas has several milliseconds in the order of (1)-(2)-(3)-(4).
The light transmission state is established for several seconds. On the other hand, the liquid crystal shutter 7 uses a shutter liquid crystal panel and has the same divided form as the stop liquid crystal panel used for the liquid crystal stop 9, and as shown in FIG. In each of the divided areas 7, the shutter operation is performed in conjunction with the liquid crystal diaphragm 9 in the order of (1)-(2)-(3)-(4). That is, when the photographer presses the shutter button to input, the lens is set at a predetermined position and orientation, the image is projected on the divided area 7a, the aperture of the divided area is adjusted, and the shutter operates. Next, the lens moves to a predetermined position, projects an image on the portion of the divided area 7b, adjusts the aperture of that portion, and operates the shutter. Similarly, the operations (3) and (4) are sequentially completed, and when the image is recorded on the film, the next film is loaded. This photographing state is shown in FIG.
Shown in

Next, when a multi-frame photographing is input, the microcomputer 11 controls the lens 11, the liquid crystal diaphragm 9 and the shutter 7 by the microcomputer.
Is controlled, and the position 7 of the first frame in the continuous shooting in FIG.
Project an image onto a. When the photographer presses the shutter button and enters an input, only the first frame is recorded. Next, the lens 11, the liquid crystal diaphragm 9, and the shutter 7 are moved to the position of the second position 7b in FIG. 5B, and are in a state of waiting for input of the next shutter button or skip button. In this manner, each time the shutter button is pressed, recording is performed in the order of (2)-(3)-(4), and when recording is performed at (4), the next frame is loaded. This photographing state is shown in FIG.

In the case of the continuous shooting mode or the multi-frame shooting mode, in order to prevent the light from spilling over the non-shooting portion, a light sneaking prevention liquid crystal interlocking with the liquid crystal diaphragm 9 and the liquid crystal shutter 7 is provided on the photographic film. A panel may be provided.

Further, the division pattern and division size in the above-described embodiment are not limited to the embodiment, and it goes without saying that various shapes and sizes can be used.

[0022]

As described above, according to the image pickup apparatus of the present invention, the aperture and the shutter are constituted by liquid crystal elements, each of which can be divided and driven into a plurality of areas facing each other, and The control unit includes: a selection unit for selecting one of a single-frame shooting mode and a multiple-frame shooting mode; and a lens driver that moves and tilts the lens along the optical axis by inputting a drive signal. When the multi-frame shooting mode is selected,
A drive signal is supplied to the lens driver, and the lens driver, the aperture driver, the shutter driver, and the frame feeder are controlled in conjunction with each other, so that
Since one or a plurality of images at different timings are projected, single-frame shooting and multiple-frame shooting can be realized by one imaging device of the present invention. Therefore, it is not necessary to prepare a device according to each scene as in the related art. In addition, selection of a shooting mode according to a shooting scene can be easily performed only by key input with a button or the like,
Operability is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a hardware configuration diagram of an optical system of the imaging apparatus according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a lens according to an embodiment of the present invention.

FIG. 4 is a diagram illustrating a liquid crystal diaphragm according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating a shutter according to an embodiment of the present invention.

FIG. 6 is a view for explaining an image photographed by the embodiment of the present invention.

FIG. 7 illustrates a conventional example.

FIG. 8 illustrates a conventional example.

[Explanation of symbols]

 1 Mode information 2 Shutter information 3 Skip information 4 Control unit 5a, 5b Delay circuit 6 Liquid crystal shutter driver 7 Liquid crystal shutter 8 Liquid crystal diaphragm driver 9 Liquid crystal diaphragm 10 Lens driver 11 Lens 12 Film feed driver 13 Film

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-3-35231 (JP, A) JP-A-1-193821 (JP, A) JP-A-4-238330 (JP, A) JP-A-58-58 40528 (JP, A) JP-A-2-287445 (JP, A) JP-A-52-29216 (JP, A) JP-A-4-142176 (JP, A) JP-B-51-32098 (JP, B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) G03B 15/00 G03B 7/00 G03B 17/28

Claims (1)

(57) [Claims] 1. An optical system in which a plurality of lenses, an aperture, and a shutter are arranged, a film placed on an image forming surface of the optical system, an aperture driver for driving the aperture, and a shutter driver for driving the shutter. And a control unit for supplying a drive signal to the film feeder and a control signal for providing a frame feed drive to the frame feed means for feeding the film one by one. Selecting means for selecting any one of a single-frame shooting mode and a multiple-frame shooting mode, and a driving signal; A lens driver for moving and tilting the lens along the optical axis in response to an input of When the photographing mode is selected, a driving signal is supplied to the lens driver, and the lens driver, the aperture driver, the shutter driver, and the frame feeder are controlled in an interlocked manner, so that one or the An imaging apparatus characterized in that it is configured to project a plurality of images at different timings.