JPH04239276A - Movie camera - Google Patents

Abstract

PURPOSE:To availably prevent a noise generated from a coil for pressure rising or the like at the time of the charge to a capacitor on operating a steel photographing, from being recorded through a sound collecting microphone during a movie photographing in a video tape. CONSTITUTION:The charge is operated by a stroboscopic control part 22 each time the steel photographing is operated during the movie photographing, and the noise is generated from this stroboscopic control part 22. At that time, the stroboscopic control part 22 is arranged in a grip 14 apart from a sound collecting microphone 18, so that the noise generated from this stroboscopic control part 22 is not introduced to the sound collecting microphone 18 during the movie photographing even when the charge is operated during the movie photographing. Thus, the noise can be availably prevented from being recorded in the video tape.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movie camera in which a strobe control section used during still photography is arranged at a distance from a sound collecting microphone.

0002

[Background Art] Recently, moving images (hereinafter referred to as movies)
Movie cameras have become popular because they can easily take pictures. This movie camera generally emits light from the subject from an optical section with a condensing lens to an image reading section equipped with a CCD, etc., and reads the light photoelectrically. By loading the video cassette after recording the image signal into, for example, an image reproducing device, the image signal is reproduced as a visible image on a CRT or the like.

By the way, when a movie camera of this type is used to take a movie of a subject, there is a demand for capturing a desired still image (hereinafter referred to as still) of the subject. That is, if it becomes possible to perform still photography during movie photography and then continue movie photography, it is possible to obtain desired still reproduction images in addition to continuous movie reproduction images. In this case, since still photography freezes in a shorter time than movie photography, it is necessary to use a strobe as a lighting means.

0004

However, when a strobe is attached to a movie camera as described above, noise is generated from the voltage boosting coil when charging the capacitor. For this reason, with a movie camera equipped with a sound-collecting microphone, when changing from movie shooting to still shooting and then back to movie shooting, the noise is necessary, especially when charging is performed during movie shooting. There is a problem in that the video is recorded on the videotape together with other audio.

The present invention solves this kind of problem, and the noise generated from the voltage boosting coil etc. when charging the capacitor during still shooting is recorded on the video tape via the sound collecting microphone during movie shooting. An object of the present invention is to provide a movie camera that can effectively prevent the user from being exposed.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a strobe light emitting section for still photography and a strobe control section for driving the strobe light emitting section. and a strobe control section are configured separately from each other, and the strobe control section includes:
It is characterized by being placed at a location away from the sound collecting microphone.

[0007]

[Function] In the above movie camera according to the present invention, when a movie is being shot, the strobe light emitting unit is driven and the subject is irradiated with illumination light, so that high image quality can be achieved during the movie shooting. Still photography is performed. Then, each time the strobe light emitting section emits light, charging is performed in the strobe control section, and noise is generated at this time. Here, since the strobe control section is located at a location away from the sound collection microphone, the noise generated from this strobe control section is not introduced into the sound collection microphone, and the noise is recorded on the videotape during movie shooting. This can be effectively prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a movie camera according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a movie camera according to this embodiment. This movie camera 10
The camera body 12 includes a camera body 12 and a grip 14, and the camera body 12 is provided with an optical section 16, a sound collecting microphone 18, and an open/close type strobe light emitting section 20 for still photography. The strobe light emitting section 20 and the strobe control section 22 are configured separately from each other, and the strobe control section 22
is placed at a location spaced apart from the sound collecting microphone 18, for example at the grip 14. As shown in FIG. 2, this strobe control section 22 includes a board 28 on which a capacitor 24, a booster coil 26, etc. are mounted, and this board 28 is electrically connected to the strobe light emitting section 20.

A video cassette 30 can be loaded into the camera body 12, and the grip 14 is provided with a still/movie mode selection section 32, which is a shooting button.

The optical section 16 includes a condenser lens 34 and an aperture 36.
As shown in FIG. 3, light from the subject is focused through this optical section 16 onto an image reading section 38 having a CCD. An image processing section 40 is connected to this image reading section 38, and an image recording section 42 is connected to this image processing section 40. The image recording section 42 includes a magnetic head (not shown) for recording image signals on a video tape (not shown) to which the video cassette 30 is attached. The image processing section 40 and the image recording section 42 are connected to a control section 44, and the control section 44 has an AE for driving the aperture 36.
The control section 46, the flash control section 22, and the still/movie mode selection section 32 are connected.

Next, the operation of the movie camera 10 configured as described above will be explained. First movie camera 1
The camera body 12 of No. 0 is opened, and the video cassette 30 is loaded into the image recording section 42. Then, the photographer holds the grip 14 of this movie camera 10 and takes still pictures.
When the movie mode selection section 32 is operated and the movie mode is selected, a signal is derived from the control section 44 to the AE control section 46 and the aperture 36 is driven. Next, the light from the subject passes through the condensing lens 34 and the aperture 36 that constitute the optical section 16, and is then irradiated onto the image reading section 38, where it is read photoelectrically, and further introduced into the image processing section 40, where it is converted into an image. The signal is converted into a signal and introduced into the image recording section 42. In this image recording section 42, the end of the video tape in the video cassette 30 is in contact with a magnetic head (not shown), and the image signal is recorded via this magnetic head.

When a photographer who is shooting a movie selects still mode by operating the still/movie mode selection section 32, a signal is supplied from the control section 44 to the strobe control section 22, and the strobe light emitting section 20 is driven. At the same time as the light is emitted, a signal is supplied from the control section 44 to the AE control section 46 to adjust the opening degree of the aperture 36. The light from the subject is then converted into an image signal and supplied to the image recording section 42 via the optical section 16, image reading section 38, and image processing section 40, and is recorded on the video cassette 30 by this image recording section 42. Ru.

During still photography, the capacitor 24 constituting the strobe control section 22 is charged each time the strobe light emitting section 20 emits light. At this time, noise is likely to occur particularly in the boosting coil 26, but in this embodiment, the strobe light emitting section 20 and the strobe control section 22 are configured separately, and this strobe light emitting section 20 is located in front of the camera body 12. This strobe control section 22 is arranged on the upper part.
is arranged in the grip 14 spaced apart from the sound collecting microphone 18. Therefore, even if charging is performed via the boost coil 26 for still shooting, noise generated by the boost coil 26 will not be introduced into the sound collecting microphone 18 during movie shooting. This can be effectively prevented, and it is possible to reliably collect only necessary sounds and record them on the video cassette 30. Furthermore, since the strobe light emitting section 20 is disposed at the front upper part of the camera body 12, it is possible to prevent the strobe from being vignetted by the optical section 16 and the like.

The video cassette 30 after photographing is taken out from the camera body 12 and loaded into an image reproducing device (not shown). The stills and/or movies recorded on this video cassette 30 are then displayed as visible images on a CRT or the like via an image reproducing device. Here, when the movie is played back, the sounds etc. introduced from the sound collection microphone 18 are played back, but as mentioned above, the noise generated in the strobe control unit 22 is not recorded, so only the necessary sounds etc. are played back. will be done.

Note that in this embodiment, the strobe control section 22
is arranged in the grip 14, but is not limited thereto, and the gist is to place it away from the sound collecting microphone 18 so that the noise generated in the strobe control section 22 is not introduced into the sound collecting microphone 18. Therefore, as shown by the imaginary line in FIG.
It can also be placed at a location diagonal to the sound collecting microphone 18, in which case a charging power source and the like may be housed in the grip 14.

[0017]

[Effects of the Invention] According to the movie camera according to the present invention,
The following effects can be obtained.

[0018] When the strobe control unit charges the strobe every time the strobe light emitting unit is emitted during still photography, noise is generated from the strobe control unit. Because of this arrangement, it is possible to effectively prevent this noise from being introduced into the sound collecting microphone during movie shooting. Therefore, even if the battery is being charged when shooting a movie, it is possible to prevent noise from being recorded on the videotape, and it is possible to reliably record only necessary sounds and the like.

[Brief explanation of the drawing]

FIG. 1 is an explanatory side view of a movie camera according to the present invention.

FIG. 2 is a schematic vertical sectional view of the grip of the movie camera.

FIG. 3 is a block diagram of the movie camera.

[Explanation of symbols]

10...Movie camera 12...Camera body 14...Grip 16...Optical section 18...Sound collection microphone 20... Strobe light emitting part 22... Strobe control section 24...Capacitor 26...Volume boosting coil 30...Video cassette 32...Still/movie mode selection section 44...Control unit

Claims (1)

[Claims] 1. A strobe light emitting unit for still photography, and a strobe control unit for driving the strobe light emitting unit,
A movie camera characterized in that the strobe light emitting section and the strobe control section are configured to be separated from each other, and the strobe control section is disposed at a part separated from a sound collecting microphone.