JP3034389U - binoculars - Google Patents

Abstract

(57) An object of the present invention is to provide binoculars having a simple structure, easy and inexpensive to manufacture, having a wide field of view, and being able to comfortably watch sports for a long time at night. SOLUTION: An eyepiece holding surface 5 provided on one surface of a foldable housing 3 and another surface provided on the other surface of the housing 3 are separated from the eyepiece holding surface 5 by a predetermined distance, and It is composed of an objective lens holding surface that is a substantially parallel surface, a fan-shaped portion 2 that is provided by expanding a part of the housing 3, and a transparent plate member that is attached to both lens holding surfaces 5. The binoculars are composed of an eyepiece lens 8 having an optical axis center line arranged at a corresponding position and an objective lens.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to simple and foldable binoculars suitable for watching sports.

[0002]

[Prior art]

 Conventionally, as foldable binoculars suitable for watching sports, those disclosed in Japanese Utility Model Publication No. 55-52113, Japanese Utility Model Publication 55-52114, and Japanese Utility Model Publication No. 61-28179 are known. .

[0003]

[Problems to be solved by the device]

 However, the above-mentioned binoculars have a problem that the material is hard and heavy, and the lens is a separate body, which makes manufacturing and focusing difficult. Moreover, the conventional binoculars have a narrow field of view due to the lens, and it is difficult to view a wide range brightly and comfortably for a long time. Further, there is a problem that it cannot be used for any purpose other than as binoculars.

Therefore, an object of the present invention is to use a lens made of a plate material, which has a simple structure, can be manufactured easily and inexpensively, has a wide field of view, and can be used for watching sports at night for a long time comfortably. It is to provide binoculars that can. Another object of the present invention is to provide multifunctional binoculars that can be used as a fan as well as the binoculars.

[0005]

[Means for Solving the Problems]

 The invention according to claim 1 is that "an eyepiece holding surface provided on one surface of a housing configured to be foldable by a flexible material such as paper and an eyepiece lens provided on the other surface of the housing. It is composed of an objective lens holding surface, which is separated from the holding surface by a predetermined distance and forms a substantially parallel surface, and a single transparent plate member attached to each of the lens holding surfaces. Binoculars characterized by comprising an eyepiece lens and an objective lens having a centerline arranged therein. ” Therefore, it is lightweight and inexpensive to manufacture, and when folded, it is convenient to carry even when watching sports. Further, since the lens is composed of a single plate material, it is easy to attach it accurately to the housing, and a bright and open field of view can be secured.

A second aspect of the invention is the binoculars according to the first aspect, wherein the housing includes an eaves-shaped portion that covers an upper front portion of the objective lens. . Therefore, in addition to the effect of the device according to the first aspect, harmful rays can be removed, and fatigue is less likely to occur even after long-term use.

According to a third aspect of the present invention, “an eyepiece holding surface provided on one surface of the foldable housing and another surface of the housing, the predetermined distance from the eyepiece holding surface is provided. It is composed of an objective lens holding surface which is spaced apart from each other and has a substantially parallel surface, a fan-shaped portion provided by expanding a part of the housing, and a transparent plate member attached to both lens holding surfaces. Binoculars characterized by comprising an eyepiece lens and an objective lens in which the center line of the optical axis is arranged at positions corresponding to both eyes. ” Therefore, it is lightweight and inexpensive to manufacture, and when folded, it is convenient to carry even when watching sports. In addition to being used as binoculars, it can also be used as a fan, which is convenient for watching sports on hot days.

Next, the invention according to claim 4 is that "the fan-shaped portion is formed by expanding an eyepiece lens holding surface or an objective lens holding surface of a housing, and the eyepiece lens and the objective lens. The binoculars according to claim 3, wherein each of the lenses is composed of one plate material. " Therefore, in addition to the effect described in the third aspect, the housing for accommodating the optical system of the binoculars can be used as a fan in a folded state.

Further, the invention according to claim 5 is that "the eyepiece lens or the objective lens is provided with a flange portion for attaching to the lens holding surface at a peripheral portion thereof. The binoculars according to any one of 4 above. ”. Therefore, in addition to the actions described in claims 1 to 4, the lens can be easily and surely attached to the housing by the flange portion.

According to a sixth aspect of the present invention, "the eyepiece lens or the objective lens has a wide horizontal field of view using a central portion excluding upper and lower portions of a large-diameter lens. The binoculars according to any one of item 5. ”. Therefore, in addition to the actions described in claims 1 to 5, a wide and bright visual field can be secured in the left-right direction, which is also suitable for watching sports with intense movement.

[0011]

[Embodiment of the invention]

 Binoculars embodying the present invention according to claims 3 to 6 will be described. As shown in FIG. 1, this binoculars 1 has a housing 3 in which a foldable thin plate-shaped paper material is bent into a U-shaped cross section, and its opening side is fixed to a substantially circular fan-shaped portion 2. doing. Then, one surface of the housing 3 (opposite fan-shaped portion 2 side) serves as an eyepiece lens holding surface 5 having a square window hole 4.

The other surface of the housing 3 (on the side of the fan-shaped portion 2) is an objective lens holding surface 7 having a square window hole 6. The objective lens holding surface 7 is separated from the eyepiece lens holding surface 5 by a predetermined distance and is substantially parallel to the eyepiece lens holding surface 5.

An eyepiece lens 8 and an objective lens 9 are attached to the lens holding surfaces 5 and 7, respectively, each of which is made of a transparent single plate material, and the center line of the optical axis is arranged at a position corresponding to both eyes. Has been. The eyepiece lens 8 is composed of two concave lenses provided so that the centers thereof are arranged at positions corresponding to both eyes, and the objective lens 9 is composed of two convex lenses corresponding to the concave lenses.

As shown in FIGS. 4 and 6, the eyepiece lens 8 is provided with a flange portion 10 on its peripheral portion for attachment to the lens holding surface 5. Similarly, as shown in FIGS. 5 and 6, the objective lens 9 is provided with two flange portions 11 on the upper and lower sides of the peripheral portion thereof, and is attached to the lens holding surface 7.

Further, as shown in FIG. 6, the eyepiece lens 8 and the objective lens 9 use the central portion excluding the upper and lower portions of a large-diameter lens, and have a horizontally wide field of view. There is. Therefore, a wide and bright field of view can be secured in the left-right direction, which is also suitable for watching sports that are subject to intense movement.

The casing 3 is provided with side plate portions 12 having eyepiece lens holding surfaces 5 extending to the left and right sides, and when the casing 3 is three-dimensionally assembled, the left and right side portions ( It is also fitted to the object lens holding surface 7) so that an appropriate distance (focal length) between both lenses 8 and 9 can be maintained.

When assembling the binoculars 1 described above, a window hole 4 is provided in a foldable thin plate-like paper material, and the flange portion 10 of the eyepiece 8 is fixed to the peripheral edge portion with an adhesive or the like. On the other hand, a window hole 6 is provided in the disk-shaped fan portion 2 made of synthetic resin or paper, and the flange portion 11 of the objective lens 9 is fixed to the peripheral edge portion with an adhesive or the like. Next, the paper material to which the eyepiece lens 8 is attached is bent into a U-shaped cross section, the opening side of which is fixed to the stiffened portion 2, and the housing 3 is provided.

When using the binoculars 1, the housing 3 is raised three-dimensionally, and then the side plate portions 12 are fitted to the left and right side portions of the housing 3 (and the objective lens holding surface 7). It suffices to obtain an appropriate distance (focal length) between the lenses 8 and 9. To use the binoculars 1 as a fan, the side plate portion 12 of the housing 3 may be expanded as shown in FIGS. 2 and 3 and the housing 3 may be folded.

Next, the binoculars 20 embodying the present invention as set forth in claims 1 and 2 will be described. The same members as those of the binoculars 1 are designated by the same reference numerals and the description thereof will be omitted. As shown in FIGS. 7 and 8, the binoculars 20 have a housing 23 formed by folding a foldable thin plate-like paper material and connecting both ends. Then, one surface of the housing 23 is an eyepiece holding surface 5 having a square window hole 4.

The other surface of the housing 23 is an objective lens holding surface 7 having a square window hole 6. The objective lens holding surface 7 is separated from the eyepiece lens holding surface 5 by a predetermined distance and is substantially parallel to the eyepiece lens holding surface 5. Just like the binoculars 1, the lens holding surfaces 5 and 7 are each made of a single transparent plate material, and an eyepiece lens 8 and an optical axis center line are arranged at positions corresponding to both eyes. The objective lens 9 is attached.

Further, the housing 23 is provided with an eaves-shaped portion 24 that covers the front upper part of the objective lens 9, so that it is possible to avoid sun rays or illumination (harmful rays) at the time of watching sports at night. It is like this. The housing 23 is provided with a side plate portion 25 having both lens holding surfaces 5 and 7 extending to the left and right sides, and when the housing 23 is three-dimensionally assembled, a space between the lenses 8 and 9 is provided. It is designed to maintain a proper distance (focal length).

When assembling the above-mentioned binoculars 20, the foldable thin plate-like paper material is provided with the window holes 4 and 6, and the brim portions 10 and 11 of both lenses 8 and 9 are attached to the peripheral edges thereof with an adhesive or the like. To fix. Next, the paper material to which the lenses 8 and 9 are attached is bent, and both ends thereof are connected to each other to provide the housing 23.

When the binoculars 20 are used, the housing 23 may be raised three-dimensionally and the side plate portion 25 may be used to obtain an appropriate distance (focal length) between the lenses 8 and 9. Note that FIG. 9 shows a state in which the housing 23 is being raised (folded).

Therefore, the binoculars 1 and 20 according to the present invention have a simple structure, can be manufactured at a low weight and at low cost, and can be folded to be convenient to carry even when watching sports. Also, because the lens is made of a single plate material, it can be easily mounted accurately on the housing, and a wide and bright field of view can be secured in the left and right directions, making it suitable for watching sports with intense movement. is there. Also, the collar portion allows the lens to be easily and surely attached to the housing.

The present invention is not limited to the above-described embodiment, and the shape or the like of the casing or the fan-shaped portion of the binoculars 1 and 20 can be changed as appropriate, and the mounting position of the fan-shaped portion can be changed. You may implement. Alternatively, an objective lens 19 shown in FIG. 10 may be used as the objective lens. In this case, the shape is simple and suitable for mass production.

Further, according to the present invention, as a material for forming the housings 3 and 23, coated chip balls (corrugated board) or synthetic resins other than paper (for example, soft urethane sheet, hard vinyl chloride sheet (embi sheet), polypropylene sheet) Etc.) may be used, and in addition, the shape, structure, quantity, etc. of each part may be appropriately changed without departing from the spirit of the present invention.

[0027]

[Effect of the invention]

 As described above in detail, the binoculars according to the first aspect of the present invention have a simple structure, can be manufactured at a low weight and at low cost, and can be folded to be convenient to carry when watching sports. In addition, since the lens is composed of a single plate material, it can be easily attached accurately to the housing, and it has an excellent effect of ensuring a bright and open field of view.

In addition to the effect of the invention according to claim 1, the invention according to claim 2 can remove harmful light rays by the eaves-shaped portion, and is less susceptible to fatigue even after long-term use. There is. The device according to claim 3 can be manufactured at a light weight and at a low cost, and by folding it, it is convenient to carry when watching sports. In addition to being used as binoculars, it can also be used as a fan, which is convenient for watching sports on hot days.

Next, in addition to the effect described in the third aspect, the device described in the fourth aspect can be used as a fan in a folded state of the housing that houses the optical system of the binoculars. Further, in addition to the effects of the first to fourth aspects, the device according to the fifth aspect allows the lens to be easily and surely attached to the housing by the flange portion.

In addition to the effects described in claims 1 to 5, the device according to claim 6 can secure a wide and bright field of view in the left and right directions, and is also suitable for watching sports with a lot of movement. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a preferred embodiment of the binoculars of the present invention.

FIG. 2 is a front view of the binoculars of the present invention in a folded state.

FIG. 3 is a rear view of the binoculars of the present invention in a folded state.

FIG. 4 is a plan view of the eyepiece of the binoculars of the present invention.

FIG. 5 is a plan view of an objective lens of the binoculars of the present invention.

FIG. 6 is a perspective view showing an eyepiece lens and an objective lens of the binoculars of the present invention.

FIG. 7 is a perspective view of another preferred embodiment of the binoculars of the present invention.

FIG. 8 is a developed plan view of the housing of the binoculars of the present invention.

FIG. 9 is a side view showing a state in which the housing of the binoculars of the present invention is being folded.

FIG. 10 is a perspective view showing another embodiment of the objective lens used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Binoculars 2 Fan part 3 Housing 4 Window hole 5 Eyepiece lens holding surface 6 Window hole 7 Objective lens holding surface 8 Eyepiece lens 9 Objective lens 10 Flange portion 11 Flange portion 12 Side plate portion 19 Objective lens 20 Binoculars 23 Housing 24 Eaves Shaped part 25 Side plate part

Claims (6)

[Utility model registration claims] 1. An eyepiece holding surface provided on one surface of a housing configured to be foldable by a flexible material such as paper, and another surface provided on the other surface of the housing, the eyepiece holding surface having a predetermined distance. It is composed of an objective lens holding surface that is separated from each other and forms a substantially parallel surface, and a single transparent plate member attached to both lens holding surfaces. The center line of the optical axis is arranged at a position corresponding to both eyes. Binoculars comprising an eyepiece lens and an objective lens. 2. The housing is provided with an eaves-shaped portion which covers the front upper part of the objective lens.
Binoculars described in. 3. An eyepiece holding surface that is provided on one surface of a housing that is foldable, and a substantially parallel surface that is provided on the other surface of the housing and that is separated from the eyepiece holding surface by a predetermined distance. And an objective lens holding surface, a fan-shaped portion formed by expanding a part of the housing, and transparent plate members attached to the both lens holding surfaces. Binoculars comprising: an eyepiece lens and an objective lens in which a center line of an axis is arranged. 4. The fan-shaped portion is formed by expanding an eyepiece lens holding surface or an objective lens holding surface of a housing, and each of the eyepiece lens and the objective lens is made of one plate material. The binoculars according to claim 3, which are those. 5. The binoculars according to any one of claims 1 to 4, wherein the eyepiece lens or the objective lens is provided with a flange portion for attaching to the lens holding surface at a peripheral portion thereof. 6. The eyepiece lens or the objective lens has a wide horizontal field of view using the central portion of the large-diameter lens excluding the upper and lower portions thereof. Binoculars.