JPH0722351B2 - Electronic buffer finder mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic viewfinder mounting device used in a camera-integrated magnetic recording / reproducing device or the like.

2. Description of the Related Art A conventional electronic viewfinder mounting device will be described below with reference to the drawings.

FIG. 6 is a perspective view showing a case where a conventional electronic viewfinder is used in a camera-integrated magnetic recording / reproducing apparatus.

In the figure, reference numeral 1 denotes an apparatus main body that accommodates a cassette tape (not shown), converts an image photographed from the lens unit 2 into an electric signal, and records the electric signal on the tape in the cassette tape. Reference numeral 3 is an electronic viewfinder having an eyepiece 4 capable of visually observing a photographed image.

The operation of the conventional electronic viewfinder configured as above will be described.

First, by visually observing the eyepiece 4 of the electronic viewfinder 3, selecting an image to be photographed and operating a recording switch (not shown), the image to be photographed can be recorded on the tape.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above configuration, the electronic viewfinder 3 is fixed, and the distance L between the device body 1 and the eyepiece 4 for visually observing a captured image is limited, so that the device body is There is a problem in that the eyepiece 4 can be viewed only by the right eye by placing 1 on the right shoulder of the user and not by the left eye.

In view of the above problems, the present invention provides an electronic viewfinder mounting device in which the electronic viewfinder can be moved so that the eyepiece can be viewed with either the right eye or the left eye.

Means for Solving the Problems In order to solve the above problems, the electronic viewfinder mounting device of the present invention is movable in a direction orthogonal to or substantially orthogonal to the optical axis of the photographing lens section of the video tape recorder with a built-in camera. An electronic viewfinder with an eyepiece,
With a switching function that enables and blocks the movement of the eyepiece from the position corresponding to the right eye of the user to the position corresponding to the left eye, and from the position corresponding to the left eye to the position corresponding to the right eye Is.

The present invention has the above-described structure, by operating the switching mechanism, the eyepiece is moved from the position corresponding to the right eye of the user to the position corresponding to the left eye and the position corresponding to the left eye from the position corresponding to the left eye. Can and can be prevented from moving to.

Example Hereinafter, one example of an electronic viewfinder mounting apparatus of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an example of a camera-integrated magnetic recording / reproducing apparatus equipped with an electronic viewfinder mounting apparatus of the present invention. In the figure, the same components as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 5 is an electronic viewfinder having an eyepiece section 4 and movable in an A direction which is a direction orthogonal to the optical axis of the lens section 2. Therefore, the maximum distance 1 between the field of view 4 and the device body 1 is larger than L in FIG.

FIG. 2 is a perspective view showing a schematic configuration of the electronic viewfinder mounting apparatus of the present invention. Reference numeral 6 denotes a rail portion formed on the electronic viewfinder 5 (hereinafter referred to as EVF), which can be inserted into the rail receiving portion 7 housed in the component holding portion 10 formed on the apparatus body 1 from the B direction. There is. Reference numeral 8 is a lock member that is housed in the rail receiving portion 7 and prevents the rail portion 6 from moving, and 9 is a switching knob that releases or fixes the movement of the rail portion 6.

FIG. 3 is an exploded perspective view of essential parts of the electronic viewfinder mounting apparatus according to the embodiment of the present invention.

In the drawing, the lock member 8 is inserted into the rail receiving portion 7 in the direction of arrow C, and is switched so that it is engaged with the screw receiving portion 12 formed in the through hole portion 11 component holding portion 10 formed in the switching knob 9. The knob 9 is inserted into the component holder 10 from the direction of arrow D.
Next, the rail receiving portion 7 and the lock member 8 are integrally inserted into the component holding portion 10 via the switching knob 9 in the direction of the arrow D, and the screws 13 are used to insert the rail receiving portion 7, the lock member 8 and the switching member. The knob 9 is fixed in the component holder 10. A through hole 14 through which the screw 13 penetrates is formed in the rail receiving portion 7, and a through hole 15 through which the screw 13 penetrates is also formed in the lock member 8. Reference numeral 16 is a semi-cylindrical first convex portion formed on the lock member 8, and a semi-spherical second convex portion (not shown here) is formed on the back side thereof. Reference numeral 17 is a second concave portion formed on the switching knob 9 and engageable with the second convex portion.

FIG. 4 is a side view of essential parts of the electronic viewfinder mounting apparatus according to the embodiment of the present invention.

In the figure, reference numeral 18 denotes a first concave portion that is formed on the rail portion 6 and that engages with a first convex portion 16 formed on the lock member 8. A plurality of first concave portions are provided in the direction A, which is the moving direction of the electronic viewfinder 5. Has been formed.

The operation of the electronic viewfinder mounting device configured as described above will be described below with reference to FIGS. 5 (A) to 5 (E).

First, FIG. 5 (A) shows a state in which the incision 4 of the electronic viewfinder 5 is fixed at a position corresponding to the right eye of the user. This is the first recess 18 of the rail portion 6.
The first convex portion 16 of the lock member 8 is engaged with. or,
The semi-spherical second protrusions 19 formed at opposite positions of the first protrusion 16 of the lock member 8 are the second of the switching knobs 9.
Is engaged with the recess 17 of the. Here, the lock member 8 is fixed to the screw receiving portion 12 by a screw 13 (not shown), and is held by being engaged with the switching knob 9. Therefore,
Even if the rail portion 6, that is, the electronic viewfinder 5 is moved in the direction A, the movement is blocked by the above configuration.

Next, the operation of moving the eyepiece 4 of the electronic viewfinder 5 to the position corresponding to the left eye of the user will be described.

First, as shown in FIG. 5 (B), the switching knob 9 is moved in the arrow E direction. Then, the second projection 19 disengages from the second recess 17 and rides on the flat surface. Since the switching knob 9 is made of synthetic resin, it is bent upward in the figure by the elasticity of the resin. Next, when the switching knob 9 is further moved in the direction of the arrow E, it is moved to the second position as shown in FIG. 5 (C).
The switching knob 9 is separated from the protrusion 19 of the. In this state, the rail portion 6 becomes movable in the A direction. When the rail portion 6 is moved in the direction of arrow E in the state shown in FIG. 5 (C), the first concave portion 18 becomes the first convex portion as shown in FIG. 5 (D).
The first convex portion 16 is separated from the first concave portion 18 after getting over the 16th portion. At this time, since the lock member 8 is made of synthetic resin, it is flexibly deformed by the elasticity of the resin. Furthermore, the rail part 6
When is moved in the direction of arrow E, the first convex portion 16 engages with the first concave portion 18 as shown in FIG. 5 (E). In this state, the field of view 4 has moved to a position corresponding to the left eye. Next, by moving the switching knob 9 in the arrow F direction, the switching knob rides on the second protrusion 19 as shown in FIG. 5 (B), and further the switching knob 9 is moved in the arrow F direction. As a result, the switching knob 9 moves to the position shown by the dotted line in FIG. 5 (E). This state is the same as the state shown in FIG. 5 (A), and the rail portion 6 is fixed at this position. Here, the elastic force of the lock member 8 is larger than the elastic force of the switching knob 9. Next, the moving operation of the eyepiece 4 shown in FIG. 5 (E) from the position corresponding to the left eye to the position corresponding to the right eye is the reverse of the above operation, and is the reverse of FIG. 5 (E) to FIG. 5 (A). This is possible by shifting the operation to.

As described above, according to the present embodiment, by making the electronic viewfinder movable, the eyepiece can be fixed at each position so that the user's right eye and left eye can see it. .

In the above-described embodiment, a leaf spring for pressing the lock member 8 toward the rail portion 6 to prevent the lock member 8 from changing over time may be used.

As described above, according to the present invention, by operating the changeover switch, the eyepiece unit attached to the electronic viewfinder is orthogonal or nearly orthogonal to the optical axis of the photographing lens unit of the camera-body type video tape recorder. In the first direction, the movement from the position corresponding to the right eye of the user to the position corresponding to the left eye and the movement from the position corresponding to the left eye to the position corresponding to the right eye of the user can be enabled and prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a camera-integrated VTR in which an electronic viewfinder mounting device of the present invention is implemented, FIG. 2 is a perspective view showing a schematic configuration of the device, and FIG. FIG. 4 is a perspective view, FIG. 4 is a side view of the main part of the same apparatus, and FIG.
7A to 7E are cross-sectional views of a main part for explaining the operation of the apparatus, and FIG. 6 is a perspective view showing an example of a camera-integrated VTR equipped with a conventional electronic viewfinder. 2 ... Lens part, 4 ... Eyepiece part, 5 ... Electronic viewfinder, 6 ... Rail part, 7 ... Rail receiving part, 8 ...
Locking member, 9 ... switching knob, 16 ... first protrusion,
17 ... second concave portion, 18 ... first concave portion, 19 ... second convex portion.

Claims (1)

[Claims] 1. An electronic viewfinder having an eyepiece which is movable in a first direction orthogonal or substantially orthogonal to an optical axis of a photographing lens portion of a video tape recorder with a built-in camera, and the eyepiece portion is used. A switching mechanism that enables and blocks the movement from a position corresponding to the right eye of a person to a position corresponding to the left eye, and a movement from a position corresponding to the left eye to a position corresponding to the right eye. A rail part that is movable in the first direction and is integral with the electronic viewfinder, and has a plurality of first recesses formed in the first direction, and a rail receiver that guides the rail part so as to be movable in the first direction. And a lock member having a first convex portion housed in the rail receiving portion and engageable with the first concave portion, and a second convex portion at a position opposite to the first convex portion. And its locking member A second concave portion engageable with a second convex portion, and a switching knob movable in the first direction, the second knob being movable when the switching knob moves in the first direction. Has a first position in which the concave portion engages with the second convex portion and a second position in which the second concave portion is separated from the second convex portion, and in the first positional relationship, The engagement of the first concave portion and the first convex portion prevents movement of the rail portion in the first direction, and in the second positional relationship, the rail portion in the first direction is prevented. An electronic viewfinder mounting device, which is configured to be movable.