JPH028272Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an anti-shake device for preventing camera shake during hand-held shooting.

[Conventional technology]

As for the conventional technology, it was published in 1971-97125.
There is a camera in which an elastic body serving as a cheek rest is screwed onto the viewfinder eyepiece part of the camera using an eye rest fixing device. This takes advantage of the phenomenon that when shooting hand-held, if you put something between the camera and your cheek, such as a handkerchief, the stability increases considerably and prevents camera shake. If you hold the camera with your cheek firmly pressed against it, you can prevent camera shake. The human body is constantly shaking due to the beating of the heart, and it is said that even if you use a standard lens and turn off the shutter at 1/125 seconds, the image will still be shaken.According to experiments, although there are individual differences, this camera shake prevention device By using this method, we have found that camera shake is not noticeable even with slow shutter speeds of 1/8 seconds for service-sized prints.

[The problem that the idea aims to solve]

However, although these anti-shake devices have the advantage of being smaller and lighter than tripods and are resistant to shutter starts, they are similar to tripods in that they have to be screwed onto the camera, which is cumbersome, and it is difficult to hold the camera during shutter launches. Unless the anti-shake device is screwed on at all times, there is a high possibility that camera shake will occur, and conversely, if it remains screwed on, it will become bulky and inconvenient to carry. In addition, the use of the cheek rest widens the distance between the camera's viewfinder eyepiece and the eye, resulting in light leakage, which also has the adverse effect of making it difficult to stare at the viewfinder.

Therefore, an object of the present invention is to provide a cheek-rest type camera shake prevention device that can be quickly attached to a camera during photographing and does not cause light leakage.

[Means to solve the problem]

In order to achieve the above-mentioned problems, the camera shake prevention device of the present invention changes the method of attaching the camera to the viewfinder eyepiece from a screw-on method to an engagement method that engages with a groove in the viewfinder eyepiece. It is characterized in that an eyecup is used as a part to be attached to the viewfinder eyepiece part.

[Effect]

How to attach the camera to the viewfinder eyepiece.
By changing from a screw-on type to an engagement type that engages with the groove in the viewfinder eyepiece, the previously troublesome attachment and detachment has changed from a screw mount to a bayonet mount for interchangeable lenses. As you can see, it becomes possible in an instant.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below based on embodiments with reference to the drawings.

FIG. 1 is an exploded perspective view showing the structure of the present invention, and FIG. 2 is a left side view of the assembled device.
In addition, the dashed-dotted line in FIGS. 2 to 5 represents a camera having a groove in the viewfinder eyepiece that can be engaged with the present invention.

In FIGS. 1 and 2, 1 is a rotating plate, and this rotating plate 1 and a cushion 2 serving as a cheek rest.
When the velvet fastener 4 is attached or sewn to both sides and the cushion 2 is connected to the rotary plate 1,
A rotary plate provided with an elastic body serving as a cheek rest is constructed. The rotary plate provided with the elastic body serving as the cheek rest is attached to a mounting part 9 that can accommodate a diopter adjustment lens, which has a convex part 8 that engages with the groove 7 of the viewfinder eyepiece part 6 of the camera 5, and a rubber cup. When clamped with 10, the camera shake prevention tool 11 of the present invention is constructed.

Originally, it is not clear whether the eyecup includes only the rubber cup 10 or whether it also includes the rubber cup 10 and the attachment part 9 to the viewfinder eyepiece 6, but in the present invention, the eyecup includes the rubber cup 10 and the viewfinder eyepiece 6. It is defined as being composed of a mounting part 9 to the holder.

The camera shake prevention device 11 of the present invention is shown at arrow A in FIG.
Slide it as shown in the figure to engage the groove 7 of the viewfinder eyepiece 6 of the camera 5, and when using it with glasses, remove the rubber cup 10 and use it only at the attachment part 9 to the viewfinder eyepiece 6. do it. (Even if the rubber cup 10 is attached, this is unnecessary because light leaks from the gap between the eyeglass lens and the eye.) Figure 3 shows the case where the present invention is used in the horizontal position.
4 and 5 are schematic front views when used in the vertical position, and the rotary plate 1 is rotatable left and right around the attachment part 9 to the viewfinder eyepiece part 6. A person with poor eyesight should use the cushion 2 on the left side, and a person with good eyesight should use the cushion 2 as a cheek rest on the right side by rotating the rotary plate 1 so that the cheek rests tightly against the cushion 2.

Here, the material of the rotary plate 1 is such that it does not interfere with film winding, and the material of the velvet fastener 4 is
It is preferable to use a flexible material such as vinylon in order to increase the adhesive force when pasting the cushion.Also, the rotary plate 1 and the cushion 2 can be connected with hooks without using the velvet fastener 4. but,
When using hooks, the position of the cushion can be freely moved up, down, left and right, just like when using velvet fasteners, and the cushion can be used as if it were custom-made to match the shape of the user's cheeks. However, by eccentrically positioning the hook, the position of the cushion can only be moved to a certain extent.

The present invention also has the function of an eyepiece shutter by using an engagement method in which the lens is attached to the viewfinder eyepiece 6 by engaging with a groove in the viewfinder eyepiece 6.

By using this function, it is possible to prevent the light incident from the viewfinder eyepiece 6 from affecting the light receiving element installed inside the camera when taking pictures with the self-timer.

Its usage will be explained with reference to FIGS. 6 and 7. As shown in FIG. 6, when taking pictures with the self-timer without using the camera shake prevention tool 11 of the present invention, the light incident on the viewfinder eyepiece 6 from the direction of arrow B is transmitted from the viewfinder eyepiece 6. The light passes through the camera and is emitted in the direction of arrow C, but a portion of it reaches the light receiving element installed inside the camera and adversely affects exposure. In order to prevent this, as shown in FIG.
from the viewfinder eyepiece 6 on the camera side in the direction of arrow D so that it does not come off. In this case, the rotary plate 1 completely shields the viewfinder eyepiece 6 and functions as an eyepiece shutter, so that it is possible to prevent an adverse effect on the light receiving element installed inside the camera.

[Effects of the invention] As explained above, in the present invention, the method of attaching the camera to the viewfinder eyepiece has been changed from a screw-on method to an engagement method that engages with a groove in the viewfinder eyepiece. In addition, an eyecup was used for the part that attaches to the viewfinder eyepiece. This makes it possible to instantly attach and detach the camera, which was previously a hassle, and it is possible to significantly reduce camera shake during handheld photography. In addition, the gap between the eye and the part attached to the viewfinder eyepiece is filled to prevent light leakage, making it easier to gaze at the viewfinder. Further, as a secondary feature, it is possible to prevent the influence on the light receiving element installed inside the camera when taking pictures with a self-timer.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the structure of the present invention;
The figure is a left side view when assembled, Figure 3 is a front view showing how it is used in horizontal position, Figures 4 and 5 are front views showing how it is used in vertical position, and Figure 6 is a front view showing how it is used in vertical position. Photographing situation using a self-timer. FIG. 7 shows a photographing situation using a self-timer using the present invention. 1: Rotating plate, 2: Cushion, 3: Missing number, 4:
Velvet fastener, 5: Camera, 6: Viewfinder eyepiece, 7: Groove, 8: Convex part, 9: Mounting part,
10: Rubber cup, 11: Anti-shake device.

Claims (1)

[Claims for Utility Model Registration] 1. A camera shake prevention device ( mandatory requirements). 2. The camera shake prevention device (embodiment) according to claim 1, which is a registered utility model, in which a velvet fastener is used to connect the elastic body serving as the cheek rest and the rotary plate. 3. The camera shake prevention device (embodiment) according to claim 1, which uses a hook to connect the elastic body serving as the cheek rest and the rotary plate. 4. An anti-shake device (embodiment) according to claim 1, which uses an eye cup to connect the viewfinder eyepiece and the rotary plate.