JP2009025323A

JP2009025323A - Smart glasses

Info

Publication number: JP2009025323A
Application number: JP2007185145A
Authority: JP
Inventors: Takemichi Osogaguchi; 剛道獺ヶ口
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-17
Filing date: 2007-07-17
Publication date: 2009-02-05

Abstract

<P>PROBLEM TO BE SOLVED: To provide glasses which hardly tires a user even if he/she uses to see nearby for reading or the like for a long time. <P>SOLUTION: The glasses includes an extensible bridge or a laterally extensible bridge in consideration of that the interocular distance is reduced by 4 to 5 mm when seeing nearby, so that a near interocular distance can be provided to reduce an unnecessary prism. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、常用メガネを近くを見るために用いても疲れにくく長時間の読書を可能にするメガネの形状に関するものである。 The present invention relates to a shape of glasses that makes it possible to read for a long time without getting tired even if the regular glasses are used for looking close.

従来のメガネの形状は、ブリッジやフロントは伸縮できなかった。
遠くを見るときと近くを見るときの瞳孔間距離（PD）が変化すること、またそのことで不必要なプリズムが発生していた。近視の方の常用メガネとして視力矯正に使われるマイナスレンズの場合、常用メガネで近くを見るとベースインプリズムが生じ、片眼づつ見ている各々の像がベースインプリズムがない場合に比べて左右に広がるため、片眼づつ見ている像を寄せようと眼筋に負担がかかっていた。登録実用新案第3017094号にある折畳み式メガネにあるものは、顔のサイズにあわせて左右レンズを拡張調節するものであるが、用途が本発明と違い、いろんなサイズの顔の大きさに対応させているものであり、本発明は、常用メガネとして遠用メガネのPDで作られた矯正レンズ装着後のメガネフレームを読書など近くのものを見るとき、近用のPDにすぐに調整でき、不必要なプリズム作用による近用時の眼筋疲労を軽減させること用途としています。
またブリッジを中心とした伸縮構造やふちなしメガネ（ツーポイントメガネ）用の構造もあります。
登録実用新案第３０１７０９４号 The shape of conventional glasses cannot be expanded or contracted at the bridge or front.
The distance between the pupils (PD) when looking at the distance and when looking at the near side changed, and this caused unnecessary prisms. In the case of a minus lens used for vision correction as normal glasses for myopia, a base-in prism occurs when looking close to the normal glasses, and each image viewed one eye at a time is compared to the case without a base-in prism. As a result, the eye muscles were burdened to bring the image of each eye. The one in the foldable glasses in the registered utility model No. 3017094 is to expand and adjust the left and right lenses according to the size of the face, but the application is different from the present invention and it corresponds to various face sizes. In the present invention, it is possible to quickly adjust to a near-use PD when viewing a close-up such as reading a glasses frame after mounting a correction lens made with a long-distance PD as regular glasses. It is intended to reduce eye muscle fatigue during near-term use due to the necessary prism action.
There are also stretchable structures around the bridge and structures for edgeless glasses (two-point glasses).
Registered Utility Model No. 3017094

従来の常用メガネによれば、遠くを見たときと近くを見たときの眼の瞳孔間距離が考慮されておらず、近くを見た時、瞳孔間距離が短くなるので近視の方の視力矯正に使われるマイナスレンズの場合、ベースインプリズムが発生し、、片眼づつ見ている各々の像がベースインプリズムがない場合に比べて左右に広がるため、片眼づつ見えている各々の像を寄せようとし、疲れやすかった。遠視の方の場合、必要のないベースアウトプリズムが生じ片眼づつ見えている各々の像を拡げようとし、疲れやすかった。
そこで、この発明は、近くを見た時、瞳孔間距離が４ミリから５ミリ縮むことを考慮し、ブリッジや前枠を伸縮させ、近用PDにし、必要のないプリズムを発生させないことで、読書など長時間しても疲れにくいメガネを提供することを課題とする。 According to conventional regular glasses, the distance between the pupils of the eyes when looking into the distance and near is not taken into consideration, and the distance between the pupils when looking close is shortened, so the visual acuity for those with myopia In the case of a minus lens used for correction, a base-in prism is generated, and each image viewed with one eye spreads to the left and right compared to when there is no base-in prism. It was easy to get tired. In the case of hyperopia, an unnecessary base-out prism was generated, and it was easy to get tired, trying to enlarge each image that was visible with one eye.
In view of this, the present invention takes into consideration that the distance between the pupils is reduced by 4 to 5 mm when looking close, and by expanding and contracting the bridge and the front frame to make a near-use PD, no unnecessary prism is generated. The challenge is to provide eyeglasses that do not get tired even after reading for a long time.

以上の課題を解決するために、第一発明は、伸縮できるブリッジを設けたことを特徴とするメガネである。
また、第二発明は、左右に伸縮できる前枠を設けたことを特徴とするメガネである。 In order to solve the above-described problems, the first invention is a pair of glasses provided with a bridge that can be expanded and contracted.
According to a second aspect of the present invention, there is provided a spectacle having a front frame that can be expanded and contracted to the left and right.

近視の方が遠くを見るためのメガネを掛けて近くを見た場合、レンズの光学の中心より鼻側に視線がきて、マイナスレンズの場合ＢＩ（ベースイン）プリズムが発生し眼が疲れやすいです。第一発明、または第二発明によれば、近くを見るようにブリッジやフロントを縮め、近用のPDにて、必要のないプリズムを軽減し快適に読書ができます。 When myopia wears glasses to see far away, the line of sight comes to the nose side of the optical center of the lens, and in the case of a minus lens, a BI (base-in) prism occurs and the eyes are prone to fatigue. . According to the 1st invention or the 2nd invention, the bridge and the front are shortened so that it sees near, and the prism which is not needed can be reduced and reading can be comfortably done by the near PD.

この発明の一実施形態を、図１に示す。
メガネ本体は樹脂製や金属製であり、この本体のブリッジには、伸縮可能なブリッジが設けられている。１は近用使用時メガネ本体で２は遠用使用時メガネ本体である。レンズは球面レンズが望ましい。非球面レンズですとPDを変えることで球面度数の変化も考慮が必要である。 One embodiment of the present invention is shown in FIG.
The glasses body is made of resin or metal, and the bridge of the body is provided with an extendable bridge. Reference numeral 1 denotes a main body of glasses for near use, and reference numeral 2 denotes a main body of glasses for distance use. The lens is preferably a spherical lens. For aspherical lenses, it is necessary to consider changes in spherical power by changing the PD.

「実施形態の効果」
この実施形態によれば、常用の視力矯正レンズ装着後のメガネで近くを見るとき、ブリッジを中心に４ミリから５ミリ縮め、近用PDとし、不必要なプリズムは発生させずに、長時間読書が可能になる。またブリッジの外枠５に鼻パッド付けたことにより、近用使用時遠用使用時にブリッジを伸縮させても、鼻幅は一定に保つことができる。 "Effect of the embodiment"
According to this embodiment, when looking close with glasses after wearing a normal vision correction lens, it is shortened by 4 to 5 millimeters around the bridge to make a near-use PD, and unnecessary prisms are not generated, for a long time. Reading is possible. In addition, since the nose pad is attached to the outer frame 5 of the bridge, the width of the nose can be kept constant even when the bridge is expanded and contracted during near-use use and long-distance use.

「他の実施形態」
図１の実施形態では、ブリッジで伸縮させるタイプであったが、フロントが一枚板からの削りだしなどは、前枠を左右に伸縮させる形態も考えられる。ツーポイントふち無しフレームは実施形態１のブリッジ可動部７になるところが、９になる。 "Other embodiments"
In the embodiment shown in FIG. 1, it is a type that is expanded and contracted by a bridge. However, a form in which the front frame is expanded and contracted to the left and right is also conceivable when the front is cut from a single plate. The two-point borderless frame becomes 9 where the bridge movable portion 7 of the first embodiment becomes.

この発明の一実施形態を示す正面図である。It is a front view which shows one Embodiment of this invention. ブリッジ部分の縦断面図である。It is a longitudinal cross-sectional view of a bridge part. ブリッジ部分の分解図である。It is an exploded view of a bridge part. ふち無しフレームのブリッジ可動部Borderless bridge moving parts

Explanation of symbols

１近用使用時メガネ本体２遠用使用時メガネ本体
３遠用使用時ブリッジ４近用使用時ブリッジ
５ブリッジ外枠６ブリッジストッパー
７ブリッジ可動部８ブリッジの芯
９ふち無しフレームのブリッジ可動部 DESCRIPTION OF SYMBOLS 1 Eyeglasses body for near use 2 Eyeglasses body for use for distance 3 Bridge for use for distance 4 Bridge for near use 5 Bridge outer frame 6 Bridge stopper 7 Bridge movable part 8 Bridge core 9 Bridge movable part of borderless frame

Claims

Glasses whose bridge part expands and contracts

Glasses whose front part stretches left and right

Eyeglass bridge