JPH05297436A - Camera holding device and camera - Google Patents

Abstract

PURPOSE:To confirm the range of the image pickup scene of a camera while securing a wide visual field and perspective, as it is, when the scene is picked up as an image with the camera fitted to a head part. CONSTITUTION:A transparent windshield 3 buried in a half mirror 8, is hung on a holding plate 2 holding a camera head 7a. When the holding plate 2 is fixed on the head part at a position where an eye is opposed to the half mirror 8, light from the above transmits a notch obtained by punching a mask plate 9 provided on a hood 2a and showing a picture frame, is reflected by the half mirror 8 of the lower side, and made incident on the eye of a photographer. On the other hand, the scene transmitting the transparent windshield 3 can be simultaneously, made visible, so that the picture frame reflected by the half mirror 8 and the scene can be overlapped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera holding device and a camera equipped with the camera holding device, and more particularly to a camera holding device used when a camera is mounted on a head and an image of a scene is taken. The present invention relates to a camera having a holding device.

[0002]

2. Description of the Related Art In an apparatus for mounting a camera on a head and capturing an image of a scene, the photographer cannot see the scene actually captured by the camera because he cannot look into the viewfinder of the camera. There may be a composition mismatch between the scene that the person wants to capture and the scene that the camera captures.
There has been a demand for a means by which the photographer can confirm the range of the scene captured by the camera, which is necessary for determining the composition.

In order to solve the above-mentioned uncertainty, Japanese Patent Laid-Open No. 63-2
No. 84529 discloses a technique in which a scene imaged by a camera is projected on an optical viewfinder through an optical path formed by an optical fiber, and the viewfinder is arranged in front of one of the eyes of a photographer. The person can confirm the scene being imaged by the camera with one eye using the viewfinder, and can visually recognize the scene to be imaged with the other eye and the entire background.

[0004]

However, according to the above-mentioned prior art, since the photographer sees the scene imaged by the viewfinder with one eye and the scene with the other person's direct view, the perspective of the scene is sensed. May not be obtained, and it may be dangerous especially when capturing an image while moving, and since the scene imaged in the viewfinder has a narrower angle of view than the field of view by direct view, the target object imaged in the viewfinder is When the camera suddenly jumps out of the imaging screen of the finder, it is difficult to find the target so that the target can enter the imaging screen of the finder again.

The present invention has been made in view of the above circumstances, and the photographer visually recognizes the scene in a wide field of view with both eyes and secures the perspective of the scene, thereby controlling the range of the scene captured by the camera. An object of the present invention is to provide a camera holding means that can be confirmed and a camera having the camera holding means.

[0006]

A camera holding device of the present invention comprises a holding means for holding the camera means, a fixing means for fixing the holding means to the head, and a fixing means fixed to the holding means. A transparent plate-like body which covers at least one of the front of the eye when fixedly supported by the head, and a screen frame which shows a range of a scene imaged by the camera means provided in the plate-like body or a part of the holding means. And a means for optically superimposing the screen frame on a scene directly visible through the plate-shaped body, the part being disposed in front of the plate-shaped body.

A camera of the present invention is characterized by comprising the above-mentioned camera holding device and camera means held by the holding means of the camera holding device.

Here, the "camera" is a generic term for a video camera such as a VTR or 8 mm and a photographic camera.

[0009]

In the camera holding device and the camera of the present invention, the light incident on the screen frame provided on the transparent plate or the holding means is reflected or refracted by the optical means provided on the plate. Let it enter the eye.

On the other hand, the transparent plate-like body simply transmits the scene in front of the eye and makes it enter the eye.

With the above operation, the photographer can visually recognize the screen frame entered by the optical means in an overlapping manner in the scene transmitted through the transparent plate-like object, and the scene captured by the camera. You can always check the range of.

Further, since the field of view with both eyes is always secured, it is possible to visually recognize a scene such as a subject in a wide field of view without impairing perspective.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a use state diagram showing an embodiment of a camera having a camera holding device according to the present invention, FIG.
Is a front view showing an embodiment of a camera having a camera holding device according to the present invention, FIG. 3 is a sectional view taken along line II of FIG. 2, and FIG. 4 is a perspective view of the cylindrical lens of FIG.

The illustrated camera is a robust camera having a camera 1 for taking a picture as a camera means and a cap-shaped head part, and a camera mounting screw 2b for holding the camera 1 on its eaves 2a. A holding base 2, a belt 6 fixed to the edge of the holding base 2 and fixing the head and the holding base 2 when the holding base 2 covers the head, and the holding base 2 is the belt. The windshield 3, which is a transparent plate-like body that covers the front of both eyes when fixed to the head by 6, and the screen frame disposed in a portion of the windshield 3 facing one eye, and the cylindrical of the optical superimposing means. And a lens 5 (see FIG. 3).

As shown in FIG. 3, the cylindrical lens 5 is embedded so as to penetrate through the inside surface of the windshield 3, that is, the surface facing the eyes to the outside surface, and the side end surface on the inside surface side is a convex lens surface.
5a is formed, and the side end surface on the outer side is a frosted glass finish matte surface 5b. At this time, as shown in FIG. 4, the cylindrical lenses 5 are arranged in combination so as to converge to the center of the eye. The screen frame is configured. Further, the substantially rectangular pyramid frustum formed by the four cylindrical lenses 5 makes the angle θ formed by two oblique sides that are not adjacent to each other coincide with the angle of view taken by the camera 1 in the film inside the camera 1. The rectangle formed by the matte surface 5b seen from the converged point coincides with the screen frame indicating the range of the scene photographed by the camera 1 on the film.

The camera 1 having the camera holding base 2 constructed as described above is put on the head, and as shown in FIG. 3, the eye position is placed at the point 0 where the cylindrical lens 5 forming the screen frame converges. Then, the head and the holding base 2 are fixed by the belt 6 while maintaining the position. At this time, in the eyes on the side where the cylindrical lens 5 is embedded in the windshield 3, a scene of direct vision is visually recognized through the windshield 3 except the portion where the cylindrical lens 5 is embedded, and the cylindrical lens 5 is further embedded. A rectangular frame formed by the matte surface 5b of the cylindrical lens, that is, a screen frame showing the range of the scene photographed by the camera 1 on the film is displayed on the above-mentioned direct-view scene through the above-mentioned portion, and is almost the same as the direct-view scene. Can be seen in degrees. With the other eye, the scene of direct vision can be visually recognized through the windshield, so that the photographer can always check the range photographed by the camera 1 without impairing the perspective while maintaining the visual field of both eyes. The composition of is obtained.

Since there is a fixed distance between the center point of the lens of the camera 1 and the center point of the eye, the directions of the four cylindrical lenses 5 must be slightly changed for correction.

Further, the windshield 3 does not necessarily have to cover both eyes, and may have any shape as long as the size of the portion in which the cylindrical lens 5 is embedded is secured and the scene viewed directly does not distort.

Further, the holding base 2 does not necessarily have to be of a hat type, and may have any means as long as it has a means for surely fixing it to the head and is strong enough to firmly hold the camera 1. good.

FIG. 5 is a use state diagram showing another embodiment, and FIG.
Is a front view of the fifth embodiment, and FIG. 7 is a sectional view taken along line II-II of FIG.

The illustrated camera has a camera head 7a of a video camera as a camera means and a hat-shaped head-mounted head, and has a means 2c for holding the camera head 7a on its eaves 2a. 2, a belt 6 fixed to the edge of the holding base 2, a windshield 3 suspended from the eaves 2a of the holding base 2, and a horizontal position inside a position of the windshield 3 facing one eye. Buried at an angle of about 45 ° with the direction,
It comprises a half mirror 8 as an optical superimposing means, a mask plate 9 and a lens 10 attached to the eaves 2a above the half mirror 8 and showing a screen frame of a predetermined size.

The holding table 2 constructed as described above is put on the head, and the holding table 2 is maintained so that the half mirror 8 is positioned so as to face one eye, and the head and the holding table are held by the belt 6. Fix 2 and.

At this time, the photographer sees the windshield 3 and the half mirror 8 through his / her eyes on the side where the half mirror 8 is embedded and can be visually recognized.
The mask plate 9 showing the screen frame attached to the eaves 2a, which is reflected and visible, is visually recognized as an overlapping scene.

Also, since only the scene that has passed through the windshield 3 is visible to the other eye, the mask showing the scene and the screen frame of the scene captured by the camera head 7a does not impair the perspective with both eyes. The plates 9 can be visually recognized in an overlapping manner.

The predetermined size of the "screen frame of a predetermined size" is a size adjusted in advance so that a scene equivalent to the scene captured by the camera head 7a can be visually recognized. Means that.

FIG. 8 shows another embodiment.

This embodiment is the same as the above embodiment except that the configuration of the windshield 3, the optical means and the screen frame is changed from the above embodiment. That is, in this embodiment, the eaves 2a of the holding table 2 is used.
A windshield 3 suspended from the windshield 3, and small projections 11 of a substantially right-angled triangle which are optical means attached to four locations near the one eye of the windshield 3 so as to show the vertices of a quadrangle. Four mask plates provided at predetermined positions of the holding table 2, that is, at positions where light from above is reflected by the small projections 11 and then incident on the eyes, and which are provided with "L" -shapes indicating the apexes of the screen frame. 12
A light-emitting body 13 for irradiating the mask plate 12 with light, a rod lens 14 for guiding the light emitted by the light-emitting body 13 and passing through the mask plate 12 to the small projections 11, and the others are the same as those in the above-described embodiment. It is the structure of.

Next, the operation of this embodiment will be described.

Similar to the above-mentioned embodiment, the holding base 2 is put on the head, and one eye is aligned with a predetermined position 0 facing the center of the four small projections 11 attached to the windshield 3. The head and the holding base 2 are fixed with a belt 6.

At this time, the light-emitting body 13 illuminates the mask plate 12, and the light is transmitted only in the shape of "L" formed in the mask plate 12. The light transmitted through the mask plate 12 is introduced by the rod lens 14 directly below the mask plate 12 into the small projection 11 attached to the windshield 3, reflected by the slope of the small projection 11 and incident on the eyes of the photographer. The above action is caused by the mask plate 12 and the small projections 11 at the four places, and is visually recognized by the photographer as an "L" character indicating the four corners of the screen frame. This screen frame overlaps with the scene transmitted through the windshield 3, and the photographer can visually recognize the composition of the scene by superimposing the screen frame on the scene viewed directly.

The small protrusions 11 are not limited to the form in which a separate member such as a half mirror or a prism is attached, and the small protrusions 11 may be formed integrally with the windshield 3.

[Brief description of drawings]

FIG. 1 is a use state diagram showing an embodiment of a camera having a camera holding device according to the present invention.

FIG. 2 is a front view showing an embodiment of a camera having a camera holding device according to the present invention.

FIG. 3 is a sectional view taken along line I-I of FIG.

FIG. 4 is a perspective view showing an optical means using a cylindrical lens.

FIG. 5 is a usage state diagram showing another embodiment of a camera having a camera holding device according to the present invention.

FIG. 6 is a front view showing another embodiment of a camera having a camera holding device according to the present invention.

FIG. 7 is a sectional view taken along line II-II of FIG.

FIG. 8 is a front view showing another embodiment of a camera having a camera holding device according to the present invention.

FIG. 9 is a side view showing another embodiment of a camera having a camera holding device according to the present invention.

[Explanation of symbols]

 1a Camera 1b Connection cord 1c Release button 1d Display window 1e Battery 2 Camera holder 2a Eaves 2b Camera mounting screw 3 Windshield 4 Screen frame 5 Cylindrical lens 5a Convex lens 5b Matte surface 6 Belt 7a Camera head 7b Connection cord 7c Release button 7d VCR 8 Half mirror 9 Mask plate 10 Lens 11 Small protrusion 12 Mask plate 13 Light emitter 14 Bar lens

Claims (2)

[Claims] 1. A holding means for holding the camera means, a fixing means for fixing the holding means to the head, and at least one of the front of the eyes fixed to the holding means and fixedly supported by the head. A transparent plate-like body that covers the screen, a screen frame that is provided on the plate-like body or a part of the holding means and that shows the range of the scene captured by the camera means, and a part in front of the plate-like body. A camera holding device, comprising means for optically superimposing the screen frame on a scene provided and directly viewed through the plate-shaped body. 2. A camera comprising the camera holding device according to claim 1 and camera means held by a holding means of the camera holding device.