JPS6237212Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to bifocal glasses that can be used as near vision glasses by using ordinary small lens lenses.

Glasses with compound lenses for distance and near vision, in which a near vision lens is attached to the bottom of a distance vision lens, have drawbacks such as a narrower field of view and higher prices than glasses that have a single lens for each purpose. Ta.

This invention aims to eliminate the drawbacks of the conventional bifocal glasses and provide bifocal glasses that are extremely convenient and inexpensive for people with farsightedness.

This invention for the above purpose configures bifocal glasses from glasses in which a magnetized member is provided on the rings of a frame having a predetermined eyeglass lens, and a pair of small lenses for near use with a permanent magnet member attached to one end, If necessary, the small lens can be attached to the inner lower part of the eyeglass lens using a permanent magnet.

This invention will be explained in detail below with reference to illustrated embodiments.

In the figure, 1 is a frame, 2 is a predetermined eyeglass lens 3,
3, and magnetizable members 5, 5 are provided on left and right nose rings (nose parts) 4, 4.

Reference numerals 6, 6 denote a pair of small lenses for near vision, which are formed in a semicircular shape, and permanent magnet members 7, 7 are attached to one end of the lens on the side located at the Krings.

As the magnetizable member 5, a magnetizable metal, rubber, synthetic resin, etc. can be used, and if necessary, ferrite used as a permanent magnet may be used as the magnetizable member. In this case, the permanent magnet member 7 on the side of the small lens 6 can be made of a magnetizable member, and when both of them are made of ferrite, rubber containing ferrite, synthetic resin, etc. The power has improved further, and the small lens 6 to Klings 4, 4,
6 becomes even more secure.

Further, the magnetizable members 5, 5 are attached to the rings 4, 4 by means of adhesion, embedding, etc., and the means can be arbitrarily selected depending on the material forming the frame.

This invention utilizes the attraction force of a permanent magnet to attract and fix the small lenses 6, 6 to the rings 4, 4, and also allows the small lenses 6, 6 to be positioned at the inner lower part of the eyeglass lenses 3, 3. ,6
It can be used as near vision glasses. Further, when unnecessary, the small lenses 6, 6 can be removed and carried, and even when looking at a distant place through the spectacle lenses 3, 3, the field of view will not be particularly narrowed. Moreover, since the spectacle lens 3 only needs to be a single lens, it can be made at a lower cost than a compound lens, and the power of the left and right small lens can be changed according to the visual acuity, making it extremely convenient and convenient for bifocal glasses. have

[Brief explanation of the drawing]

The drawings show bifocal glasses according to this invention; Fig. 1 is a back view of the glasses, Fig. 2 is a back view of the small lens,
FIG. 3 is a cross-sectional plan view of the Krings portion showing the state in which the small lens is attached. DESCRIPTION OF SYMBOLS 1... Glasses, 2... Frame, 3... Eyeglass lenses, 4... Crings, 5... Magnetized member, 6...
...Small lens, 7...Permanent magnet member.

Claims (1)

[Scope of utility model registration request] Bifocal glasses consisting of glasses in which a magnetizable member is provided on the rings of a frame having predetermined spectacle lenses, and a pair of small lenses for near vision each having a permanent magnet member attached to one end.