JPS63139326A - Camera mechanism - Google Patents

Abstract

PURPOSE:To confirm a fact that a photographer is in a visual field, when the own photographer is photographed as an object to be photographed, by providing a projecting means containing a point light source and a frame body, and projecting a light beam of the point light source, passing through the frame body, to the body to be photographed. CONSTITUTION:A zoom ring 3 is provided with a cam ring 6 provided as one body with a zoom ring 5 and interlocked with the ring 5 in a part of a lens barrel. On the upper part of the ring 6, a projecting means 10 containing a point light source 8 and a frame 9 is provided. When a zoom lever 4 is operated so that a view angle is widened, the frame body 9 moves so as to approach the light source 8 side in accordance with this selected view angle, and on the contrary, when the lever 4 is operated so that the view angle is narrowed, the frame body 9 moves to the side of an object to be photographed in accordance with this selected view angle. In such a way, the range of a light beam of the light source 8 which can be recognized through the frame body 9 from the side of the object to be photographed coincides with a photographic area. Accordingly, a person to be photographed can confirm easily a fact that the person is in a visual field.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to the following: when a photographer who is located at a distance from the camera takes a picture of himself or herself as a subject by remote control, for example, when the photographer is located within the field of view of the camera. Regarding the camera mechanism equipped with a display means that allows you to check the presence of animals, special K, autofocus,
The present invention relates to a camera mechanism suitable for home video cameras in which photographing functions such as exposure control are automated.

[Prior art]

In recent years, home video cameras such as 8 mm video cameras and camera-integrated video cameras have become popular.

These video cameras have automated various photographing functions as described above to improve operability.

Along with this, camera applications are being considered in which the photographer himself becomes the subject and uses the camera to photograph and record, for example, to improve the appearance of sports forms.

2. Description of the Related Art Conventionally, as seen in broadcast cameras, a tally lamp disposed at the top of the camera is used to inform the person being photographed of the operating status of the camera.

[Problem that the invention seeks to solve]

However, as mentioned above, this type of lamp informs the subject of the camera's operating status, but does not make them aware of whether the subject is within the field of view when attempting to photograph themselves. Ta.

There is relatively no problem when the person taking the picture is positioned in front of the lens and frames in the center of the screen, but especially when you want to frame in a position away from the center of the screen, or when a zoom lens is attached to the camera. When the angle of view changes due to the angle of view, it is difficult for the person concerned to fully recognize the viewing area to be photographed.

The object of the present invention was achieved based on the above circumstances, and
To provide a camera mechanism comprising a display means by which a photographed area (field of view) can be easily recognized by a photographed person.

[Means for solving problems]

That is, the above object of the present invention is to provide a camera mechanism that allows a person to be photographed to recognize the field of view of the camera.
This is achieved by a camera mechanism characterized in that it has a light projection means including a point light source and a frame, and the light from the point light source passing through the frame is projected toward the subject.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

In this embodiment, a video camera equipped with a zoom lens will be described as an example.

The video camera to which the present invention is applied has an imaging system and a recording system that are conventionally well known, and therefore, description thereof will be omitted here.

One embodiment shown in FIG. 1 shows the main parts of a video camera to which the present invention is applied.

A zoom lens 6 is mounted on the front surface of the camera body 1 and has a focus ring 2 for adjusting a point K close to the subject.

The angle of view of the zoom lens 3 is changed by operating a zoom lever 4 to rotate a zoom ring 5.

Further, the zoom lens 6 is provided with a cam ring 6 that is integrally provided with the zoom ring 5 in a part of the bell body and interlocks therewith, and a spiral cam groove 7 is formed on the circumferential surface of the cam ring 60.
is installed.

The camera mechanism according to this embodiment includes a light projecting means 10 including a point light source 8 and a frame 9, which will be described later, above the cam ring 6.

The point light source 8 is an LE built into the front side of the camera body 1.
D is provided so that colored light is projected onto the subject K@kf through the frame 9.

The frame body 9 has a similar shape to the imaging surface, and is arranged in front of the point light source 8 so that the point light source 8 is located approximately in the center.

On the front side of the camera body 1, an idler lens 11 is disposed protruding along the lens barrel, and a cam pin 12 into which the guide lever 11 is fitted approximately in the center is integrated with the frame 9. It is set in.

Further, the tip of the cam pin 12 engages with the cam groove 7 of the cam ring 6, and the cam ring 6 rotates by operating the zoom lens 4 to change the angle of view.
Further, the cam pin 12 engaged with the cam groove 7 of the cam ring 6 is provided so as to move along the lens barrel. From this K, the frame 9 moves along the lens barrel. At this time, when the zoom lever 4 is operated to widen the angle of view, the frame 9 moves as a light source according to the selected angle of view. When the zoom lever 4 is operated so that the angle of view is narrowed, the frame body 9 is arranged to move toward the subject in accordance with the selected angle of view. It is being As a result, the range of the light of the point light source 8 that can be recognized from the photographed person's side through the frame 9 matches the photographing area.In other words, the photographed person who is trying to photograph himself as the subject is suddenly within the field of view. However, if the person to be photographed is within the field of view, the light from the point light source 8 can be seen through the frame 9. On the other hand, if the person is outside the field of view, the person to be photographed will see the light from the point light source 8 on the outside of the frame 9, thereby easily recognizing that he or she is outside the field of view.

In the above embodiment, the point light source is fixed and the frame is movable, but the present invention can also be provided so that the point light source is movable and the frame is fixed.

Further, in the above embodiment, the case where a zoom lens is attached is described, but when a standard lens is attached and the angle of view is constant, the same effect can be achieved by fixing the distance between the point light source and the frame. is obtained.

Furthermore, the camera mechanism of the present invention is not only effective when the photographer is the subject; for example, when photographing a large group of people, people near the opposite ends of the group can see themselves in the field of view. You can easily determine whether you are inside.

〔Effect of the invention〕

As described above, according to the camera mechanism of the present invention, especially when photographing the photographer himself as a subject, he can easily confirm that he is within the field of view, thereby preventing photographic errors.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of a camera explaining one embodiment of the present invention. 1... Camera body, 2... Focus ring, 3
...Zoom lens, 4...Zoom Renogu-15
...Zoom ring, 6...Cam ring, 7...
・Male groove, 8... Point light source, 9... Frame body, 10.
...Light projection means, 11...Guide lever, 12...Cam pin

Claims (1)

[Scope of Claims] 1) A camera mechanism that allows a person to be photographed to recognize the field of view of the camera, which has a light projecting means including a point light source and a frame, and emits light from the point light source passing through the frame. A camera mechanism characterized by projecting the image toward the subject. 2) A patent characterized in that a zoom lens is attached, and either the point light source or the frame moves along the optical axis of the imaging optical system according to changes in the angle of view at which the subject is photographed. A camera mechanism according to claim 1.