JPH0829742A - Simple spectacle lens for far and near sights - Google Patents

Abstract

PURPOSE:To obtain simple spectacle lenses having the advantages of spectacles for far and near sights using multifocal lenses and spectacle lenses of a mounting type by hanging the spectacles of small lenses on pads of ordinary spectacles. CONSTITUTION:The simple spectacle lenses 10 are constituted by coupling the right and left lenses 11, 12 by a bridge member 13 of a suitable spectacle frame material and are mounted by merely hanging the lenses on the right and left pads 21, 22 of the spectacles 20. The size of the lenses 11, 12 of the simple spectacle lenses 10 is smaller than the size of the lenses 23, 24 of the spectacles 20 and us selected at the size at which the visual recognition of a far sight field is not hindered. The diopter of the lenses 11, 12 is selected at the value suitable for the visual recognition of the near sight field coupled by the diopter of the lenses 23, 24. An antislip member 14 formed of, for example, a synthetic resin, is mounted at the bridge member 13 to prevent slipping between the bridge member 13 and the pads 21, 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle lens, and more particularly to a simple spectacle lens which can be appropriately attached to ordinary spectacles in order to easily realize a bifocal function.

[0002]

2. Description of the Related Art Generally, in order to use spectacles for bifocals, it is generally preferable to process one lens as a multifocal lens and use the upper part of the lens for far vision and the lower part for near vision. Are known.

Such bifocal spectacles are convenient because they can visually recognize the far field and the near field in a normal wearing state, but on the other hand, there is a possibility that the far field and the near field simultaneously come into view. Obviously, it will hinder your visibility.

On the other hand, instead of using the above-mentioned multifocal lens, there is a spectacle lens which is attached to ordinary spectacles and is provided with another lens for completely covering the lens portion for bifocal use.

Obviously, the advantages and disadvantages of the wearable spectacle lens are contrary to the case of the spectacle lens using the multifocal lens described above. In other words, you can get a near-natural field of view if necessary by using the spectacle lenses properly.
In order to see the far and near vision, it is necessary to attach a lens each time.

[0006]

SUMMARY OF THE INVENTION The present invention provides a simple spectacle lens having the advantages of bifocal spectacles using a multifocal lens and spectacles realizing bifocals using a wearable spectacle lens. To do.

[0007]

SUMMARY OF THE INVENTION The present invention provides a spectacle lens for wearing by means of a lens which is small compared to the dimensions of a normal spectacle lens, in other words a lens of a dimension selected such that it does not interfere with the visibility of the far field. By forming the spectacle lens on the nose pad of ordinary spectacles, the bifocal function was realized very easily.

[0008]

1 is a perspective view showing an embodiment of a simple spectacle lens of the present invention, and FIG. 2 is a perspective view showing a state of use in which normal spectacles having a wearing frame are fitted with the simple spectacle lens of the present invention. It is a figure.

As shown in the figure, the simple spectacle lens 10 is constructed by connecting left and right lenses 11 and 12 by a bridge member 13 of a suitable spectacle frame material.

As shown in FIG. 2, the simple spectacle lens 10 is mounted by simply hanging it on the left and right nose pads 21, 22 of the spectacles 20.

In order to realize the bifocal function with the simple spectacle lens 10 attached to the spectacles 20, the dimensions of the lenses 11 and 12 of the simple spectacle lens are the same as those of the lens 2 of the spectacle 20.
The lenses 11 and 12 are formed to be smaller than the dimensions of the lenses 3 and 24, and are selected to a dimension that does not hinder the visibility of the far field.
The dioptric power is selected to a value suitable for visual recognition of near vision in combination with the dioptric power of the lenses 23 and 24.

In order to mount the simple spectacle lens 10 on the spectacles 20 in a stable state, the bridge member 13 is covered with a non-slip member 14 made of, for example, a synthetic resin, so that the bridge member 13 and the nose pad are covered. It prevents sliding between the pads 21 and 22.

Further, the simple spectacle lens 10 preferably has an appropriate curvature together with the lenses 23 and 24 of the spectacles 20 in order to achieve an appropriate power and obtain a stable visual field. For this reason, it is preferable that the bridge member 13 is formed of a flexible material, or the bridge member 13 and the lenses 11 and 12 are pivotally attached to each other to allow a slight angle adjustment.

Further, the bridge member 13 is attached to the lenses 11 and 12 so that it can be properly attached to spectacles of various sizes.
Alternatively, it may be configured to be slightly movable in the vertical direction.

[0015]

As described above, according to the present invention,
The bifocal function can be realized by a simple operation of simply hanging the simple spectacle lens on the nose pad of the spectacles, and therefore the perspective functions can be used very conveniently simultaneously or individually.

Further, since the simple spectacle lens of the present invention has a simple structure, it can be easily mass-produced and manufactured at low cost.

Further, according to the present invention, since it is extremely easy to put on and take off the spectacles, the spectacles can be easily used for training when wearing bifocal spectacles.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a simple spectacle lens of the present invention.

FIG. 2 is an explanatory diagram of a method of using the simple spectacle lens shown in FIG.

[Explanation of symbols]

 10 Simple Eyeglass Lenses 11 and 12 Lenses 13 Bridge Member 14 Nonslip Member 20 Eyeglasses 21 and 22 Nose Pad 23 and 24 Lens

Claims (2)

[Claims] 1. A left lens and a right lens which are selected to have a size that does not hinder the visual recognition of the far vision by the lens of the spectacles to be mounted and have a power that enables the visual confirmation of the near vision in cooperation with the lens of the spectacle. A simple spectacle lens, characterized in that the spectacle lenses are connected by a bridge member for hanging on the left and right nose pads of the spectacles. 2. The simple spectacle lens according to claim 1, wherein an anti-slip member is attached to the bridge member to prevent sliding between the nose pad and the bridge member.