JPH0698218A - Camera with built-in vtr - Google Patents

Abstract

PURPOSE:To obtain the images of high picture quality by illuminating an object with a compact video light used for the close-up photography in a macrophotography state where the object is photographed from the closest distance. CONSTITUTION:A compact video light 3 for the close-up photography turned on in response to a macroswitch attached to a zoom ring of a camera with a built-in VTR is incorporated in the vicinity or in the periphery of a lens 4. Thus it is possible to avoid such as inconvenient case where the camera main body makes its shade in the viewfield due to a too small distance from an object in a close-up shooting state. Then the photography is attained with high brightness and a high S/N.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized macro illuminating device (hereinafter referred to as macro video) which is lit in conjunction with a close-up photographing switch (hereinafter referred to as a chroma switch) provided as an additional function of a VTR integrated camera (Referred to as a light).

[0002]

2. Description of the Related Art In many VTR integrated cameras, a distant object is greatly enlarged (hereinafter referred to as "telephoto"), or a nearby object is reduced to move a wide range (hereinafter referred to as "wide angle"). Therefore, a zoom lens that can freely change the focal length of the lens is attached. Since the focal length of this lens can be changed while the image forming surface is fixed, the angle of view can be changed while the subject is in focus. Further, as a function added to this zoom lens, a macro switch is provided for taking a photograph at a close range by bringing the camera close to a subject (hereinafter referred to as macro photography). Conventionally, when this macro photography is performed, for example, when the subject is too close to the subject, the shadow of the camera body may be included and the subject to be photographed may be dark.

When shooting with a VTR integrated camera,
It is indispensable to apply suitable lighting to the subject in terms of color reproducibility and S / N.

As a document describing the necessity of the video light, "CCD camera technology" (issued on November 3, 1986, first edition) No. 117 issued by Radio Engineering Co., Ltd.
There are pages to page 119.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is, as described in the above-mentioned conventional example, to provide a small micro video light around or in the vicinity of the lens in order to eliminate a shadowed portion during close-up photography. It is provided to illuminate the subject brightly and obtain a clear image.

[0006]

In order to achieve the above object, a small video light, which is turned on only during close-up photography, is incorporated in the vicinity of the lens in association with a macro switch attached to the zoom ring. .

[0007]

[Function] The zoom ring selects the telephoto or wide angle by changing the focal length of the lens. A macro switch attached to one end of the zoom ring switches to a focal length suitable for close-up photography. A small video light built around or near the lens is lit in conjunction with this macro switch.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a flower being photographed from a close range. First, the zoom ring 1 shown in FIG. 2 is fully rotated on the wide-angle side, and the macro switch 2 is pressed to enter the macro mode. When in macro mode, the focal length of the lens switches to a state suitable for close-up photography. At this time, a small video light 3 built-in near the lens 4 is turned on in conjunction with the macro switch 2, and a close-up subject can be illuminated brightly.

FIG. 3 shows a circuit diagram for turning on and off the video light.

The switching regulator 6 converts the power supplied from the battery 7 into a constant voltage, and this voltage is used as the power to turn on the light bulb 8 in the video light 3. The macro switch 2 turns on and off, and when pressed, the switch short-circuits to turn on, and when the macro switch 2 is released, the switch opens and turns off.

Conventionally, the macro switch 2 is a push type switch for switching the focal length, but in the present invention, it is also used as a blinking switch of the video light 3.

The light is turned on when the macro switch 2 is pressed and turned off when the macro switch 2 is released.

The irradiation range of the video light 3 is only the range photographed in the macro mode, and it is not necessary to illuminate a wide range. Further, the video light does not have to be so high in brightness because it is close to the subject.

The present invention is not limited to a VTR integrated camera,
It can also be applied to close-up photography with still cameras such as single-lens reflex cameras and compact cameras. In the case of a still camera, the flashlight and flash are used instead of the video light in the above-described embodiment.

[0016]

According to the present invention, during macro photography, a small video light built in near the lens can illuminate the subject brightly, so that the S / N is good and the image quality with stable hue and high image quality is obtained. You can get the screen.

Further, unlike the conventional video light, since it does not light up in all modes of telephoto, wide-angle and macro, the life of the battery can be extended.

[Brief description of drawings]

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

FIG. 2 is a diagram showing positions of a zoom ring and a macro switch of the camera body.

FIG. 3 is a circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

1 ... Zoom ring, 2 ... Macro switch, 3 ... Macro video light, 4 ... Lens, 5 ... Camera body, 6 ... Switching regulator, 7 ... Battery, 8 ... Light bulb

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Motoki 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi Image Information Systems Co., Ltd. (72) Inventor Akira Tamura 1410 Inada, Katsuta-shi, Ibaraki Hita Tachi Works Tokai Factory

Claims (2)

[Claims] 1. A VTR integrated camera including a camera section for photographing a subject and a video tape recorder for recording and reproducing the same, comprising a light emitting body for illuminating the subject around or near a lens at the tip of the camera section, A VTR-integrated camera, characterized in that the illuminator illuminates a subject at the time of close-up photography. 2. The VTR-integrated camera according to claim 1, wherein a light-emitting body is turned on in association with a macro switch which is switched during close-up photography.