JPH11326613A - Farsightedness and shortsightedness switching device for bifocal eyeglasses - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch a pair of eyeglasses between farsightedness and shortsightedness by making a spectacle main body move vertically without any movement of nose pads, only by slightly pushing up or pressing the front of an endpiece without moving the gaze unnaturally, with only putting on a bifocal eyeglasses which consists of one right and left lenses each and to localize the eyeglasses in the respective states, even after the hand is put away from the eyeglasses. SOLUTION: An eyeglass frame 1 is provided with nose pad support metal fittings 2 closely to the center, the nose pad 4 is fitted by inserting a noise pad shaft 3 through the metal fittings from above, and the eyeglass main body is allowed to move up and down by about 1 cm. Furthermore, a magnet 5 and a magnet 7 are fitted to the upper part of the nose pad shaft 3 and lower joint metal fittings 6 respectively. When the eyeglasses are used as shortsightedness, the magnets attract each other to move up the eyeglass main body and when the spectacle main body is used as farsightedness, the magnets 5 and 7 are separated to lower the eyeglass main body, so that the eyeglass main body is localized in the respective states.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a perspective switching device for eliminating the difficulty of moving a line of sight when switching between distant and near vision in single-lens single-lens bifocal glasses.

[0002]

2. Description of the Related Art Conventional single-lens single-lens bifocal glasses have left and right lenses at an upper portion of a lens and a nearer lens at a lower portion. To do.

[0003]

In the conventional single-lens single-lens bifocal glasses, when used as a near object, the line of sight cannot be seen well unless the line of sight is turned downward to near the limit. I try to solve this problem that I feel very difficult and tired of my eyes.

SUMMARY OF THE INVENTION The present invention provides convenient and bifocal spectacles that can be switched to one-touch operation easily with one finger at any time for both long-distance and near-distance without unnatural movement of the line of sight while wearing the spectacles. It is intended to provide.

[0005]

A nosepiece support bracket (2) is provided on the left and right of the rear side of the eyeglass frame (1) near the center, and an inverted U-shaped nosepiece shaft (3) is passed through from above. A nose pad (4) is attached to each of the lower right and left ends of the nose pad shaft (3).
I tried to move about cm smoothly. In addition, a thin and small upper magnet (5)
A similar lower magnet (7) is also attached to the lower side of the lower connecting metal fitting (6) provided in the center of the glasses, which is slightly wider in the vertical direction.

When the above glasses are switched to a near one, the eyeglass body rises up with respect to the nosepiece (4) and the magnet (5)
And the magnet (7) are attached to each other, and the magnet (5) is hidden behind the lower joint (6), so that the design is not impaired. I made it.

When the spectacles are switched to a distant position, the spectacle body is lowered with respect to the nose pad (4), and the magnet (5)
And the magnet (7) are separated and return to the normal state. At this time, the magnet (5) is hidden behind the upper connecting fitting (8) so that the design is not impaired and the eyeglass body is positioned by the weight of the eyeglass body. I made it.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A pair of small ring-shaped nose support brackets (2) are attached to the left and right and up and down near the center of the rear side of a frame (1), respectively, for left and right single lens type bifocal glasses. An inverted U-shaped nosepiece shaft (3) is passed through from above, and a nosepiece (4) is attached to each of the lower right and left ends of the nosepiece axis. Was moved up and down smoothly about 1cm.
Further, a thin and small upper magnet (5) is provided in front of the upper horizontal portion of the nose pad shaft (3), and a similar lower magnet (5) is also provided on the lower side of the lower connecting metal fitting (6) provided in the center of the glasses, which is slightly wider in width. 7) is attached. By slightly pushing up and down the front of the ear hook (9) with the fingertip while wearing the glasses, only the nose pad shaft (3) and the nose pad (4) do not move, and the eyeglass body moves up and down. The user can easily change the perspective by moving the camera, and even if he releases his hand from the glasses, he or she can localize in each state.

The above-mentioned nose support bracket (2) may be formed in a thin pipe shape and provided one by one on each of the right and left sides near the center on the back side of the spectacle frame (1).

[0010]

According to the present invention, it is possible to easily switch between perspective and perspective by slightly pushing up or down the front of the ear hook (9) with a fingertip without moving the line of sight unnaturally while wearing glasses. Even if you release your hand from the ear hook in both cases of distance use and near use, it is located in each state, without losing the design and tired eyes, it is very convenient.

[Brief description of the drawings]

FIG. 1 is a plan view seen from the back when glasses are switched to a distant use.

FIG. 2 is a plan view seen from behind when glasses are switched to near.

FIG. 3 is an elevational view seen from the side when the glasses are switched to a distant use.

FIG. 4 is an elevational view from the side when glasses are switched to near.

[Description of References in the Drawings]

 DESCRIPTION OF SYMBOLS 1 Eyeglass frame 2 Supporting fixture for nose pad 3 Nose pad shaft 4 Nose pad 5 Upper magnet 6 Lower connecting metal 7 slightly wider in vertical length 7 Lower magnet 8 Upper connecting metal 9 Ear hook 10 Distance lens 11 Near lens 12 Human nose 13 human eyes

Claims (1)

[Claims] 1. A nosepiece support bracket (2) on the left and right of the frame (1) near the center on the back side of the single-lens single-lens bifocal glasses.
The inverted U-shaped nosepiece shaft (3) is passed through from above, and the nosepieces (4) are attached to the left and right lower ends of the nosepiece shaft (3), respectively. On the other hand, the eyeglass body was made to move smoothly about 1 cm up and down.
Furthermore, thin and small on the front side of the upper horizontal part of the nose pad (3),
An upper magnet (5) was installed, and a similar lower magnet (7) was also installed on the lower rear side of a lower connecting metal fitting (6) provided in the center of the glasses and slightly wider in width. When the spectacles are switched to the near one, the spectacle body is raised with respect to the nosepiece (4), and the magnet (5) and the magnet (7) stick to each other. By force, I tried to localize as it is. In addition, when the glasses are switched to a far distance, the glasses body is lowered with respect to the nosepiece (4), and the magnet (5)
And a magnet (7) are separated to return to a normal state, and are positioned by the weight of the eyeglass body.