JPH09304705A - Binoculars and eye pad therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute an eye pad capable of adjusting the position of a pupil while securing flat design with little ruggedness in binoculars having a horizontal sliding type pupil distance adjusting mechanism. SOLUTION: In the binoculars having the horizontal sliding type pupil distance adjusting mechanism and the right and left independent eye pads 1; the eye pads 1 are elastic members and have notched parts 5 constituted by notching the surfaces of the right and the left eye pads which are opposed to each other from their ends, whereby they are freely bent and at least two eye pad positions are secured at a position where they are bent and a position where they are not bent. Thus, the position of the pupil can be adjusted according as a user wears spectacles or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to binoculars having a horizontal slide type interpupillary distance adjusting mechanism and its aim.

[0002]

Binoculars are usually provided with eyepieces. As a result, the position of the pupil can be matched and fixed to the eye point of the binoculars. In addition, in binoculars having a general rotary type interpupillary adjustment mechanism, the pupil by bending or sliding the eye contact so that the position where the pupil is fixed does not change depending on whether or not the eyeglass is worn during use. The position of the pupil can be adjusted, and the position of the pupil can be fixed to the fixed eye point of the binoculars regardless of whether the eyeglasses are worn. On the other hand, in the binoculars having the horizontal slide type interpupillary adjustment mechanism, the eyepiece is fixed.

[0003]

As described above, in the binoculars having the horizontal slide type interpupillary distance adjusting mechanism, since the eyepiece is fixed, the position of the pupil cannot be adjusted. Therefore, when wearing spectacles while using the binoculars, the eye point of the binoculars and the position of the pupil are displaced, and the image becomes very difficult to see.

Therefore, it is desirable to have an eyepiece capable of adjusting the position where the pupil can be fixed to the eyepoint of a certain binoculars regardless of whether the eyeglasses are worn or not.

However, in the above-mentioned conventional binoculars having the horizontal slide type interpupillary distance adjusting mechanism, due to the flat design with less unevenness, in the case of left and right independent eyepieces, the shape of the eyepieces used so far is There is no room for bending or sliding. Therefore, it is not possible to construct an eyepiece capable of adjusting the position of the pupil like the binoculars having the rotary eye width adjusting mechanism of the conventional example. Further, the left and right integrated eyepieces, which exist only in binoculars having a horizontal slide type interpupillary distance adjusting mechanism, cannot be bent or slid with the conventional shape.

It is an object of the present invention to construct a binocular having a horizontal slide type interpupillary distance adjusting mechanism, which is an eyepiece capable of adjusting the position of the pupil while ensuring a flat design with few irregularities.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides binoculars having a horizontal slide type interpupillary distance adjusting mechanism and left and right independent eyepieces, the eyepieces being formed by cutting away the surfaces of the left and right eyepieces facing each other from their ends. The eyepiece has a portion, and the protruding portion of the eyepiece can be bent or the eyepiece itself can be slid. In the case of a folding type,
The eye contact is formed of an elastic member.

According to this structure, when the user does not wear glasses, the pupil position coincides with the eye point of the binoculars if the eyepiece is used while being fixed at a predetermined position. On the other hand, when the user wears glasses, by bending the eyepiece forward (in the case of a folding type) or sliding it forward (in the case of a sliding type),
The position of the pupil can be matched with the eyepoint of the binoculars.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the binoculars according to the first embodiment, which has an interpupillary adjustment mechanism by horizontally sliding the left and right main bodies 3 and 4 of the binoculars and a left and right independent eyepiece 1. FIG. 2 shows a state in which the main bodies 3 and 4 are slid. In the present embodiment, the eyepiece 1 is made of an elastic member and is bendable.

That is, in the present embodiment, the eyepiece 1 is formed of an elastic member, and as shown in FIG. 1, the notch 5 is formed by cutting out the surfaces of the left and right eyepieces facing each other from the rear end of the end. Since it has, it can be easily folded back forward as shown in FIG. Therefore, when the eyeglasses are not worn, the state of FIG. 1 or 2 is used, and when the eyeglasses are worn, the state of FIG. 3 is used. The position of the eyes of the user can be fixed to match.

Further, in order to ensure a flat design of the entire binoculars, the eyepiece 1 is constructed as shown in FIG. 4 or 5. 4 and 5, the end portion of the lens barrel 6 has a small diameter to form the step portion 14. In FIG. 4, the eyepiece 1 is fitted in the step portion 14, and the peripheral surface thereof forms the same surface as the large diameter portion 15 of the lens barrel 6. The aim 1
The main bodies 3 and 4 are provided on the top. In other words, the eyepiece 1 is sandwiched between the main bodies 3 and 4 and the lens barrel 6.

The eyepiece 1 further has a protruding portion 1a protruding from between the main bodies 3 and 4 and the lens barrel 6, and a portion 1b for covering a part of the end face of the lens barrel 6 from the periphery. A groove 7 is formed on the inner surface of the base of the protruding portion 1a. The groove 7 has a function of smoothly turning back when turning back as shown in FIG. 4 (b). In FIG. 5, the main body 3 is attached to the step portion 14,
4 is configured in the same manner as in FIG. 4 except that a part of 4 is bent and fitted, and the eyepiece 1 is fitted thereon.

FIG. 6 shows the binoculars of the second embodiment having an interpupillary adjustment mechanism by horizontally sliding the left and right main bodies 3 and 4 and left and right independent eyepieces 8. In the present embodiment, the eyepiece 8 is slidable in the optical axis direction. In the present embodiment, as in the first embodiment, the cutout portions 5 are provided on the surfaces of the left and right eyepieces that face each other. When sliding backward from the position shown in FIG. 7, the state shown in FIG. 6 is obtained. Therefore, by using in the state of FIG. 6 when not wearing eyeglasses, and in the state of FIG. 7 when wearing eyeglasses, the user can be used as the eye point of the binoculars regardless of whether or not the eyeglasses are worn. The positions of the pupils can be matched and fixed.

Here, the binoculars are arranged as shown in FIG.
As in the case of FIG. 5, the end portion of the lens barrel 6 has a small diameter to form the step portion 14. The main bodies 3 and 4 are partially bent and fitted into the step portion 14, and the shape of the step portion is generated on the surface of the main body. Then, the eyepiece 8 is fitted to the step portion on the surface of the main body so as to eliminate the step portion. As a result, the eyepiece forms the same plane with the main bodies 3 and 4,
The flat design of the entire binoculars is secured.

Further, guide grooves 9 and ribs 18 for guiding slides are formed on the fitting surfaces of the main bodies 3 and 4 and the eye contact 8, respectively. In this embodiment, the guide groove 9 is the main body 3,
4, the rib 18 is formed on the eyepiece 1, but the ribs may be provided on the main bodies 3 and 4 and the guide groove may be provided on the eyepiece 1. Although not shown, a click or the like may be provided so as not to easily slide forward from the state where the eye contact is in a predetermined position (FIG. 8 (a)).

FIG. 10 shows the binoculars of the third embodiment. 1 except that the eyepiece 1 has an L-shaped cross section having a notch 16 formed by notching the surfaces of the left and right eyepieces facing each other and the lower surface thereof from the end rear end.
It is constructed similar to that of. FIG. 11 shows the binoculars in which the eyepiece 1 of FIG. 10 is bent forward.

FIG. 12 shows the binoculars of the fourth embodiment. A notch portion 1 in which the eyepiece 8 is formed by cutting out the surfaces of the left and right eyepieces facing each other and the surface under the eyepiece from the ends.
6 is the same as that of FIG. 6 except that it has an L-shaped cross section. FIG. 13 shows the binoculars in a state where the eyepiece 8 of FIG. 12 is slid forward.
Even if the cross section of the eyepiece is L-shaped instead of U-shaped, it is possible to prevent harmful light from entering. The function as is sufficiently achieved.

FIG. 14 shows a pair of binoculars according to a fifth embodiment having an eye width adjusting mechanism by horizontally sliding a lens barrel in a housing 11 and a left and right eyepiece 10. In the present embodiment, the eyepiece 10 is formed of an elastic member and is bendable. 15 is the same as FIG.
2 shows the binoculars with the eyepiece 10 of FIG. Since the eyepiece 10 has the cutout 12 formed by cutting out the central portion of the lower surface from the rear end of the end, the flat design of the entire binoculars is secured, but it can be bent and the position of the pupil can be adjusted. Adjustment is possible.

FIG. 16 shows the binoculars of the sixth embodiment having an eye width adjusting mechanism by horizontally sliding the lens barrel in the housing 11 and a left and right eyepiece 13. In this embodiment, the eyepiece 13 is slidable in the optical axis direction. FIG. 17 shows the binoculars in a state where the eyepiece 13 of FIG. 16 is slid forward. Since the eyepiece 13 has the cutout 12 formed by cutting out the central portion of the lower surface from the rear end of the end, the flat design of the entire binoculars is secured, but it can be slid and the position of the pupil can be adjusted. Adjustment is possible.

FIG. 18 shows the binoculars of the seventh embodiment. The structure is similar to that of FIG. 1 except that the focus ring 17 projects from the main bodies 3 and 4. Further, although not shown, binoculars having a focus ring protruding from the main body as in FIG. 18 and sliding type eyepieces are also possible.

Further, in the binoculars in which the lens barrel is slid in the housing as in the fifth and sixth embodiments, the first
According to the fourth embodiment, left and right independent targets can be provided. Further, as a modified example of the left and right independent eyepieces, those shown in FIGS. 19 and 20 are possible. Since the ends of these are bent, it is easy to maintain the shape even if they are repeatedly bent, and there is little risk of distortion as shown in FIG. 21 during use.

[0022]

According to the present invention, since the eyepiece can be bent or slidable, at least two eyepiece positions can be set, so that the binoculars can be used regardless of whether or not the user wears the eyeglasses. The position of the eyes of the user can be fixed to the eye point of the user. Therefore, the eyes can be fixed to the position where the image can be seen most easily without removing the glasses. Moreover, since the notches are provided in the central portions of the surfaces of the left and right independent eyepieces that face each other or the lower surface of the left and right integrated eyepieces, the eyepieces can be bent. It can correspond to the shape of flat binoculars. Therefore, in the binoculars having the horizontal slide type interpupillary distance adjusting mechanism, it is possible to configure an eyepiece capable of adjusting the position of the pupil while ensuring a flat design with few irregularities. Further, since the groove for facilitating bending and the guide groove and the rib for facilitating sliding are provided, the eye contact can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a pair of binoculars according to a first embodiment of the present invention.

2 is a state in which the main body of the binoculars of FIG. 1 is slid.

3 is a state in which the eyepiece of the binoculars of FIG. 1 is bent forward.

FIG. 4 is a vertical cross-sectional view showing one form of a portion including the eyepiece tube of the binoculars of FIG.

5 is a longitudinal sectional view showing another form of a portion including the eyepiece tube of the binoculars of FIG.

FIG. 6 is a pair of binoculars according to a second embodiment of the present invention.

7 is a state in which the eyepiece of the binoculars of FIG. 6 is slid forward.

8 is a longitudinal sectional view of a portion including the eyepiece tube of the binoculars of FIG.

9 is a cross-sectional view from the eyepiece side of FIG.

FIG. 10 is binoculars according to a third embodiment of the present invention.

11 is a state in which the eyepiece of the binoculars of FIG. 10 is bent forward.

FIG. 12 is binoculars according to a fourth embodiment of the present invention.

13 is a state in which the eyepiece of the binoculars of FIG. 12 is slid forward.

FIG. 14 is binoculars according to a fifth embodiment of the present invention.

15 is a state in which the eyepiece of the binoculars of FIG. 14 is bent forward.

FIG. 16 is binoculars according to the sixth embodiment of the present invention.

17 is a state in which the eyepiece of the binoculars of FIG. 16 is slid forward.

FIG. 18 is a pair of binoculars according to the seventh embodiment of the present invention.

FIG. 19 is a modification of the left and right independent eyepieces of the present invention.

FIG. 20 is another modification of the left and right independent eyepieces of the present invention.

FIG. 21 shows an example of distorted right and left independent eyepieces.

[Explanation of symbols]

 1 Left and right independent folding eyepieces 2 Dimples 3 Main body 4 Main body 5 Left and right independent eyepiece (U-shaped) notch 6 Eyepiece tube 7 Groove 8 Left and right independent slide eyepiece 9 Guide groove 10 Left and right integrated Bending type eyepiece 11 Housing 12 Left and right integrated eyepiece notch 13 13 Left and right integrated eyepiece 14 Step part of eyepiece tube 15 Large diameter part of eyepiece tube 16 Left and right independent eyepiece (L-shaped) cutting Notch 17 Focus ring 18 Rib

Claims (11)

[Claims] 1. Binoculars having a horizontal slide type interpupillary distance adjusting mechanism and left and right independent eyepieces, wherein the eyepieces are elastic members, and the notches formed by cutting out the surfaces of the left and right eyepieces facing each other from the ends. Binoculars having a portion and being bendable. 2. The binoculars according to claim 1, wherein the eyepiece has a cutout portion formed by cutting out a surface further lower than the cutout portion from an end portion, and has an L-shaped cross section. 3. The binoculars according to claim 1, wherein a groove that promotes bending is formed in the bent portion of the inner surface of the eyepiece. 4. In binoculars having a horizontal slide type interpupillary distance adjusting mechanism and left and right independent eyepieces, the eyepieces have cutouts formed by cutting out the surfaces of the left and right eyepieces facing each other from the end, and the optical axis direction. Binoculars characterized by being slidable on. 5. The binoculars according to claim 4, wherein the eyepiece has an L-shaped cross section having a cutout formed by cutting out a surface further lower than the cutout from an end. 6. The binoculars according to claim 4, wherein a guide groove and a rib for guiding a slide are formed on a fitting surface of the eyepiece and the body of the binoculars. 7. The binoculars according to claim 4, wherein the eyepiece is provided with a click for fixing the state of being slid backward. 8. Binoculars having a horizontal slide type interpupillary distance adjusting mechanism and left and right integral eyepieces, wherein the eyepieces are elastic members and a notch formed by cutting out a central portion of a lower surface from an end portion. And binoculars that are bendable. 9. Binoculars having a horizontal slide type interpupillary distance adjusting mechanism and left and right integral eyepieces, wherein the eyepieces have a cutout portion formed by cutting out a central portion of a lower surface from an end portion in the optical axis direction. Binoculars characterized by being slidable. 10. A left and right independent eyepiece used for binoculars having a horizontal slide type interpupillary distance adjusting mechanism, which is an elastic member, and is a notch formed by notching opposite surfaces of the left and right eyepieces from end portions. An eyepiece that has a portion and is bendable. 11. A left-right integrated eyepiece used for binoculars having a horizontal slide type interpupillary adjustment mechanism, which is an elastic member and has a notch formed by notching a central portion of a lower surface from an end portion. The eyepiece is characterized by having and being bendable.