JPH0675272A - Eye cup - Google Patents

Abstract

PURPOSE:To shield light made incident from the outside without disturbing an ability for detecting a position by eye and without crushing an eye cup by forming the eye cup to a specified shape so that the whole peripheral part around the eyepiece part of a finder can be covered with the eye cup. CONSTITUTION:The left side edge 3a of the eye cup is formed to a shape extending to the front side of the eye point so that it may not be pushed by photographer's face and nose. The right side edge 3c of the eye cup extends to the rear of the left side edge 3a so as to shield the light made incident from the outside, and the right side edge 3c is formed so that it may fit to the photographer's face so as to cover the eye point in the case of observing the finder with his right eye. Upper and lower side parts 3b and 3d are formed to a curved and recessed shape so that it may not be crushed by his face, etc. and the opening part of the eye cup is constituted of the aforesaid side parts 3b and 3d and left and right side parts 3a and 3c. The attachment part 4 to the eyepiece part of the finder is formed to the shape for preventing the reduction of the detection ability of a detecting means by eye, and the eye cup is attached with the eyepiece part of the finder through an attachment groove 4a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyecup attached to a viewfinder eyepiece of a camera, and more particularly to an eyepiece of a camera having a detection means for detecting the eye position such as a visual line detecting device around the viewfinder eyepiece. Regarding the cup.

[0002]

2. Description of the Related Art Conventional eyecups that cover the entire circumference of a viewfinder eyepiece have been limited to those that cover only the viewfinder eyepiece. Also,
The opening on the side in contact with the face has a uniform extension, or is slightly extended on one side. In addition, as a camera eye cup equipped with a detection means for detecting the position of eyes such as a line-of-sight detection device around the viewfinder eyepiece,
It is publicly known that the upper part and the left and right parts of the viewfinder eyepiece are easily covered.

[0003]

Some recent cameras have a detecting means such as a line-of-sight detecting device for detecting the eye position and the like around the viewfinder eyepiece. However, such a viewfinder eyepiece has such a detecting means. There is no corresponding eyecup that can cover the entire circumference of the corresponding finder eyepiece.

As in the conventional example, when the opening on the side in contact with the face extends uniformly, it is necessary to forcibly crush the eyecup by the face, which has the drawback of being uncomfortable to use.

Further, in an eyecup that easily covers the upper part and the left and right parts of a known viewfinder eyepiece used for the viewfinder eyepiece having the detection means, the detection means is It is necessary to block strong light from the outside because it has the property of lowering the detection capability, but it has the drawback of not being able to block light very much.

The object of the present invention is not only to simply shield the light, but also to block the strong light from the outside without hindering the detection ability of the detection means and without crushing the eyecup by the face. It is to provide an eyecup having a shape.

[0007]

According to the present invention, an eye cup attached to a camera equipped with a detecting means for detecting an eye or the like around a viewfinder eyepiece portion, the size of the eyecup surrounding the viewfinder eyepiece portion Has a viewfinder side opening having a shape that covers the entire circumference of the viewfinder eyepiece, and the opening on the side contacting the face has one end extending to the front of the eyepoint. The other end has a shape that covers the eye point. As a result, a person with a protruding face such as a nose does not press the face against the eyecup so much, and the outside of the other face (eyepoint) where strong light from the outside easily enters can be sufficiently shielded. In the past, the face was forced to crush the eyecup to achieve light shielding, but with the eyecup of the present invention, strong light from the outside is not forcedly crushed while holding the camera naturally. It is possible to provide an eyecup that shields light and does not interfere with the detection capability of the detection means.

[0008]

【Example】

[Embodiment 1] FIG. 1 shows an eyecup of Embodiment 1 of the present invention.
It is a perspective view showing the state where it was attached to the camera body. Reference numeral 1 is a camera body, 2 is a taking lens, and 3 is an eyecup. 2 is an enlarged view of the eyecup 3, and FIG. 3 is the eyecup 3.
FIG.

Reference numeral 3a denotes a left side of the eyecup 3, which has a shape extending to the front of the eyepoint so as not to be crushed by the face or nose. 3c is the right side of the eyecup 3, and for example, when observing the viewfinder with the right eye, it extends rearward from the left side 3a so as to prevent the entry of strong light from the outside, and is shaped like a face so as to cover the eyepoint. The shape is almost the same. Reference numerals 3b and 3d are upper and lower side portions joining the right side 3c and the left side 3a of the eyecup 3, and the upper and lower side portions 3b and 3d are formed in a curved concave shape and are not crushed by a face or the like. It has such a shape, and the left and right sides 3a and 3c form an opening of the eyecup. Reference numeral 4 denotes an attachment portion to the finder eyepiece portion, which has a shape that does not interfere with the detection capability of the detection means for detecting the eyes and the like. The shaded portion 4a is a mounting groove to the finder eyepiece.

In FIG. 3, reference numeral 5 is a viewfinder eyepiece, and 6 is a detection means for detecting the position of the eyes. As shown in the figure, the attachment portion 4 to the viewfinder eyepiece has a shape that does not interfere with the detection capability of the detection means 6. Also, the left and right sides 3a of the eyecup 3,
The finder eyepiece section 5 and the detection means 6 are entirely covered by 3c and the upper and lower side sections 3b and 3d, whereby strong light from the outside can be shielded.

In FIG. 4, the eye point is defined by the left and right sides 3a, 3
In order to explain the positional relationship with c, 7 is an eye point, and the left side 3a of the eye cup 3 from the eye point 7 is described.
The left side 3a of the eyecup 3 extends before the eyepoint 7 for a distance of l ₁ Also, the distance l ₂ minutes from the eye point 7 to the right side 3c of the eye cup 3,
The right side 3c of the eyecup 3 extends to a position covering the eyepoint 7. Further, the upper and lower side portions 3b and 3d connecting the left and right side portions 3a and 3c of the eyecup 3 are shaped so as not to be crushed by a face or the like. Therefore, with these shapes, the nose 11 and a face (not shown) do not force the eyecup 3 to be crushed to cover the eyepoints 7 and 10 and block strong light from the outside, thereby detecting the detection means such as the eyes. It satisfies the ability.

[Embodiment 2] If the shape of the opening (eye cup mounting portion) on the finder side is circular as shown by 4'in FIG. 5, the eye cup 3 is rotatable and is attached to a camera body (not shown). When the eyecup 3 is attached and rotated, the eyecup 3'corresponds to the vertical position of the camera body.

[Third Embodiment] FIG. 6 shows a third embodiment. In this embodiment, 3e to 3h, which is a portion connecting the edges 3a to 3d of the opening of the field in contact with the face of the eyecup 3, are separated, so that the 3a to 3d portions have more freedom of movement. To improve the adhesion to the face and nose. As a result, it is possible to more reliably shield light from the outside. In addition, the softness of contact with the face improves the usability.

[0014]

As described above, according to the present invention, strong light from the outside can be shielded without hindering the detection ability of the detecting means for detecting the shape of the eyecup such as the position of the eyes. Since this is the case, the detection capability of the detection means can be kept stable. In addition, the shape is not so strong that it can be crushed by the face or nose, so the feeling of use is very good.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an eyecup according to a first exemplary embodiment of the present invention is attached to a camera.

FIG. 2 is an enlarged perspective view of the eyecup of FIG.

FIG. 3 is a front view of the eyecup according to the first exemplary embodiment.

FIG. 4 is a diagram illustrating a positional relationship between an eye point and left and right sides.

5 is a front view of Example 2. FIG.

FIG. 6 is a front view of the third embodiment.

[Explanation of symbols]

 3 ... Eye cup 4 ... Mounting part of eye cup to finder eyepiece 5 ... Finder 6 ... Detecting means for detecting eye position 7 ... Eye point

Claims (2)

[Claims] 1. An eye cup attached to a camera equipped with detection means for detecting the position of the eyes and the like in the vicinity of the finder eyepiece part, the opening part on the finder side having a size enclosing the periphery of the finder eyepiece part. An eye cup having a shape that covers the entire circumference of the viewfinder eyepiece. 2. The eyecup according to claim 1, wherein the opening on the side in contact with the face has a shape in which one end extends to the front of the eyepoint and the other end covers the eyepoint.