CN1952733B

CN1952733B - Myopic eye hypometropia operation glasses

Info

Publication number: CN1952733B
Application number: CN2006100512734A
Authority: CN
Inventors: 刘华友
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-13
Filing date: 2006-11-13
Publication date: 2011-07-06
Anticipated expiration: 2026-11-13
Also published as: CN1952733A

Abstract

The invention relates to an optical element, especially a myopic glasses. In order to overcome the problem that the present myopic glasses are not suitable for the myopia to use for myopic operation, the invention provides the myopic operation glasses for the myopia, which is characterized in that two eyeglasses of the same pair of myopic glasses respectively have concave objective lenses, and the diopter of the concave objective lens in one eyeglass is about 1.5 times of that of the other eyeglass. The invention has the beneficial effects that the problem of the myopia degree deepening can not be effectively prevented by using the same pair of myopic glasses at the same occasion where people needs to see far and operates in a long time under a myopic distance and a middle sight distance which differ about one time of the myopic distance, the structure of the glasses is not complicated and the manufacture is not difficult.

Description

Spectacles for myopia

Technical field

The present invention relates to a kind of optical device, especially a kind of spectacles.

Background technology

" myopia " eyeglass that myopia is worn usually is the periscopic concave lens sheet, and the object reflection ray is crossed and will be dispersed behind the mirror and the visual angle is increased, and the visual angle of this increase is at eye myope distant vision.When being used for myopia exercise, because object is from the eyeglass close together, to have largely behind the object reflection ray transmitted through glasses and disperse, the degree of divergence of object behind its reflection ray transmitted through glasses of glasses will be big more, this subtended angle to the human eye node is bigger than normal, sometimes or even unacceptable, so can see a myope once in a while and need take off one's glasses and just can see the phenomenon of nearly thing clearly.Therefore, this " myopia " glasses are actually and are used for a myope and look far away, and the discomfort myope myopia exercise of sleeping is used.

In the eyewear products that is fit to myopia exercise, " myopia returns mirror " (patent No.: be reasonable 99234597.9), this is the complex of wedge and convex lens, it can reach the view effect of several meters distances with the image distance of interior object near the focus place with concave lens focus, and to observe the regulating degree that alleviates eyes when seeing concave lens focus with interior object near the focus place be effective to facing for this.But if allow a myope have on aforementioned glasses myopia exercise, just being equivalent to allow his bore hole see the several meters objects that distance is last, is unfavorable.

Therefore, existing spectacles have the sleep problem of myope myopia exercise of discomfort, and the existing myopia that prevents is deepened the glasses of myopic degree and existed and should see in same occasion with a pair of glasses and far to see written word again and to watch two problems that can not effectively prevent myopia intensification myopic degree on one times of myopia distance in the long working that differ from a stalemate of computer screen.

Summary of the invention

Should to see in same occasion with secondary spectacles and far to see written word again and to watch two of computer screens to differ and to prevent effectively in the long working on one times of myopia distance that myopia from deepening the problem of myopic degree in order to solve, the invention provides a kind of spectacles for myopia, can solve with a pair of glasses with this glasses and can see far again and can see written word and watch two of computer screens to differ the problem that can not effectively prevent myopia intensification myopic degree on one times of myopia distance in the long working in same occasion.

The present invention solves the technical scheme that its problem takes:

In the spectacles that constitute by mirror holder, the eyeglass etc. that contains wedge, it is characterized in that in two eyeglasses with a pair of glasses protruding object lens being arranged respectively, protruding object lens diopter in a slice eyeglass is dioptric about 1.5 times of the protruding object lens in another sheet eyeglass, and protruding object lens, wedge and recessed eyepiece eyeglass are manufactured and be a slice one-piece construction.

Principle of the present invention is:

Concavees lens before to mirror parallel beam and to a certain degree gather light beam disperse function all arranged.The eye myope mainly is to look after distant vision far to join mirror for 5 meters when getting the right lensses for one's eyeglasses, if object distance is less than 5 meters, the degree of divergence that light is crossed behind the mirror just increases, eyes just need suitably be regulated and can see clearly, the degree of divergence that the more little light of object distance is crossed behind the mirror is just big more with regard to the regulating degrees of big more and then eyes, and this is harmful to eyes.Closely go up the visual angle of reflected by objects light when arriving the eyes of eye myope after the effect of eyeglass and also remain on about 5 meters distant places and come the same visual angle level of light if can make; then be difficult for most making eyes to produce visual fatigue, also help most sight protectio.The front of present common spectacles eyeglass is provided with the protruding object lens that diopter is suitable, visual angle in the time of then making the eyes that arrive the eye myope in the protruding object focal point after the effect of eyeglass of close focus place reflected by objects light process remains on about 5 meters distant places comes the same visual angle level of light, the extent control that just can make divergence of beam is at a needed subtended angle, eyes are in to regulate or state that regulating degree is little, be fit to the eye long-time myopia exercise of myope and don't can cause visual fatigue, can not continue to deepen the myopic degree of eyes.

Majority when operating computer eyes to the distance of computer screen when seeing written word eyes to about one times of the distance of paper, in order to adapt to this big changing condition of closely going up distance, now make with the diopter of the protruding object lens of two eyeglasses in a pair of glasses inequality, the diopter that makes protruding object lens of a slice wherein is about 1.5 times of the diopters of the protruding object lens of another sheet, but irregular value is less than+1.5D.When operating computer, can watch computer screen by that little sheet eyeglass of protruding object lens diopter; When seeing written word, can watch paper by that big sheet eyeglass of protruding object lens diopter.This just can satisfy the requirement that effectively prevents intensification hypometropia degree on two near-sighted distances of the difference that differs relatively large in the long-time myopia exercise.

There are some researches show that the information that people's eyes obtain will be fused into piece image in brain, when binocular vision is unequal, based on the information of clear-eyed that eye acquisition.Now make with the diopter of the protruding object lens of two eyeglasses in a pair of glasses inequalityly, cause a people's binocular vision unequal artificially in fact, an eye is to watch computer screen, and the another eye is to watch the books paper.When an eye can clearly be watched computer screen like a cork, people's eyes all were easily, though the image that another arrives soon is not very clear; When the another eye can clearly be watched the books paper like a cork, people's eyes easily, though another soon to also be not include distinct image.Have on this glasses no matter watching on any distance between the 2/3 focal length place after the extremely short focal length focus after the long-focus focus of deciding two focal lengths; because the regulating degree of eyes is all little; so be fit to human eye myopia exercise like a cork for a long time, this just is very beneficial for the protection of human eyesight.

Suitable wedge refraction angle is set alleviates the binocular integration effect to a certain extent.

Protruding object lens in the glasses of the present invention, wedge and recessed eyepiece eyeglass are manufactured and are a slice one-piece construction, glasses are looked protruding object lens in the dipped beam system and the diameter of wedge can be chosen more lessly, only take the part area of eyeglass, the common myopia eyeglass of remainder still can be looked far.

The beneficial effect of spectacles for myopia of the present invention is, solved and to have seen in same occasion with secondary spectacles and far to see written word again and to watch two of computer screens to differ and to prevent effectively in the long working on one times of myopia distance that myopia from deepening the problem of myopic degree, structure is uncomplicated, makes not difficult.

Description of drawings

Accompanying drawing 1 is spectacles for myopia structural representation of the present invention.

Accompanying drawing 2 is spectacles for myopia lens structure synoptic diagram of the present invention.

Among the figure: 1. recessed eyepiece; 2. wedge; 3. protruding object lens; 4. mirror holder.

Embodiment

Describe the structure and the operating position of spectacles for myopia of the present invention in detail below in conjunction with drawings and Examples.

Protruding object lens (3), wedge (2) are learned system with the dipped beam of looking that recessed eyepiece (1) is formed spectacles for myopia of the present invention.The diopter of the protruding object lens of left eye (3) is+1.5D～3.0D, value+2.5D in the example, the diopter of the protruding object lens of right eye (3) is+1.0D～2.0D value+1.5D in the example, the diopter of two recessed eyepieces (3) is according to user's needs value, and equal value is-3.0D in the example.

The refraction angle of wedge (2) is 2.7 ^Δ, this can alleviate the binocular integration effect to a certain extent.

Protruding object lens (3), wedge (2) are contained in the mirror holder (4) for one-piece construction with recessed eyepiece (1).

Because the diopter of the protruding object lens (3) of right eye eyeglass is 0.67m for+1.5D, focal length, when watching computer screen on the distance about 0.65m, the emergent ray of the light of computer screen after by protruding object lens (3) approaches parallel.Diopter-the 3.0D of the recessed eyepiece of right eye (1), the parallel rays that comes from protruding object lens (3) can be dispersed, its virtual image image distance is-0.33m, myopic degree is 0.33m for the naked long distance of looking of the eye of-3.0D, so, right eye can just need not be regulated substantially can see picture clearly like a cork, though left eye watches picture not very clear, still is fused into a width of cloth distinct image in the brain.

Because the diopter of the protruding object lens (3) of left eyeglass lens is 0.4m for+2.5D, focal length, be more or less the same with diopter-3.0D, the focal length 0.33m of the recessed eyepiece of left eye (3), this moment, eyes only needed slight the adjusting just can see clearly.And myopia for the long sight distance of the bore hole of-3.0D from being 0.33m, so when seeing written word on the distance about 0.3m, left eye only needs slight adjusting can clearly see paper like a cork, though it is not very clear that right eye is seen paper, still be fused into a width of cloth distinct image in the brain.

Protruding object lens (3), wedge (2) take the sub-fraction area that recessed eyepiece (1) is common myopia glasses concace mirror lens, and all the other most of zones are still visual far away.

Claims

1. spectacles for myopia, constitute by mirror holder, eyeglass, it is characterized in that learning system by the dipped beam of forming by protruding object lens, wedge, recessed eyepiece of looking in the eyeglass, inequality with the protruding object lens diopter in two eyeglasses of a pair of glasses, the protruding object lens diopter of a slice eyeglass is dioptric about 1.5 times of the protruding object lens of another eyeglass, protruding object lens, wedge and recessed eyepiece are one-piece construction, and protruding object lens and wedge only take the sub-fraction area of recessed ocular lens.