CN202330906U

CN202330906U - Far-vision glasses special for reading and writing

Info

Publication number: CN202330906U
Application number: CN2011203478924U
Authority: CN
Inventors: 吴先藤
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2012-07-11
Anticipated expiration: 2021-09-15

Abstract

The utility model provides far-vision glasses special for reading and writing. A pair of far-vision glasses special for reading and writing comprises a glasses frame 1 and lenses 2, wherein the lenses 2 are light yellow or light brown resin lenses; each lens 2 is formed by combining a spherical lens, a cylindrical lens, a plano lens and a prism; and a convex lens with lens power of +2.50D to +4.00D and six to ten prisms 3 with inward substrates are respectively added to the lenses to determine the lens power of the lenses on the basis of the diopters of both eyes of a pair of far-vision glasses. The pair of far-vision glasses special for reading and writing has the characteristics of simple structure, low cost and remarkable effect, is easy to implement, and is an ideal optometric product which is used for preventing causing of myopia, controlling or slowing development of the myopia and curing adjustable myopia.

Description

Long sight read-write special eyeglasses

One, technical field

The utility model relates to one type and closely uses glasses, particularly a kind of long sight read-write special eyeglasses of prevention and control myopia of student eye incidence and development.

Two, background technology

The nearly cloud and mist mirror principle of the many employings of existing read-write glasses; Used convex lens≤+ 1.50D, additional certain prism, adjusting and set that this type glasses make the student when read-write, alleviate eyes are also arranged; There is certain long sight to turn usefulness into, the incidence and development of prevention and control myopia of student eye is had certain effect.But because or the used convex lens number of degrees are not enough; Prism is spent little, does not consider that more the read-write sighting target overwhelming majority is the strong contrast of black and white, stimulates eyes to be prone to produce visual fatigue; Can't reach clear and soft long sight situation fully like this, prevention and control myopia effect is undesirable.

Three, summary of the invention

The purpose of the utility model provides a kind of long sight read-write special eyeglasses, closely with at the moment through wearing these glasses, can reach the development of prevention bathomorphic generation, control or retarding myopia eye, the effect of treatment accommodative myopia eye.

The long sight read-write special eyeglasses of the utility model; Be according to everyone two different refractive status; The customized one secondary closely glasses of use such as read-write that are fit to; It comprises mirror holder and eyeglass; It is characterized in that eyeglass is faint yellow or the Sandy resin lens, eyeglass is the combined type eyeglass that is made up of various combinations concave-sphere, post mirror, goggles and prism, the number of degrees of eyeglass be far away add respectively on glasses two refraction of eye number of degrees bases have+2.50D～+ convex lens of 4.00D and the prism of 6～10 Base Ins.

The long sight read-write special eyeglasses of the utility model; Described eyeglass is had by the array configuration that concave-sphere, post mirror, goggles and prism constitute the combined type eyeglass: concave-sphere and prism combination; Concave-sphere, post mirror and prism combination, post mirror and prism combination, goggles and prism combination.

The long sight read-write special eyeglasses of the utility model is additional to be had+2.50D～+ 4.00 convex lens, makes to wait in read-write closely to use at the moment, few with or without the adjusting of eyes, also can keep sighting target clear; The myopia property light out of focus that is produced can stop bathomorphic generation or make the myopia that has taken place obtain part and recover, and can control bathomorphic incidence and development.The prism of 6～10 additional prism degree Base Ins makes to wait in read-write and closely uses at the moment, few with or without the set of eyes, alleviate extraocular muscle because of seeing when near the eyeball inward turning compressing of eyeball is reached and prevents and control bathomorphic effect.The long sight read-write special eyeglasses of the utility model; Through above-mentioned additional than the convex lens of the number of degrees and the acting in conjunction of the prism of the Base In of abundance greatly; When closely reading and writing with these glasses; Eyes use no or little to be regulated and set, and formation is seen and closely is similar to the long sight state far away of seeing, can effectively prevent development, the treatment accommodative myopia eye of the bathomorphic generation of student, control or retarding myopia eye.

Mostly be the strong contrast of black and white to the read-write environment; The long sight read-write special eyeglasses of the utility model, described eyeglass adopts faint yellow or Sandy resin lens, and wavelength is between red, green; Both avoided white light dazzling, reflective strong bad; Avoided the defective that the green glow contrast is too small, be difficult for to differentiate again, made and look thing is clear, soft, indefatigability, strengthened prevention and controlled bathomorphic effect.

The long sight read-write special eyeglasses of the utility model is simple in structure, cost is low, be easy to execution; Other is closely the same with glasses with using; Only need to wear when near and adhere to stable seeing, just can reach prevention bathomorphic generation, control or retarding myopia eye development, treat the effect of accommodative myopia eye.

The long sight read-write special eyeglasses of the utility model; According to different leaving with eye distance; Can add the prism of Base In of convex lens and the some of the different number of degrees and make various special eyeglasses; Like the computer special eyeglasses, can alleviate the visual fatigue that the long-time operation computer causes, effectively prevent and control bathomorphic incidence and development.

Four, description of drawings

Accompanying drawing 1 is the structural representation of the utility model long sight read-write special eyeglasses.

Accompanying drawing 2 is that long sight read-write special eyeglasses uses synoptic diagram.

1 is mirror holder among the figure, the 2nd, and eyeglass, the 3rd, eyeglass additional substrate prism inwardly, the 4th, eyeball, the 5th, sighting target nearby, the 6th, scene at a distance, the 7th, show that the light that sighting target nearby sends reflects and the evolutionary process of long sightization with the ophthalmic refractive system through eyeglass.

Five, embodiment

Be the utility model long sight read-write special eyeglasses embodiment below.

Referring to accompanying drawing 1, the utility model long sight read-write special eyeglasses comprises mirror holder 1 and eyeglass 2, and eyeglass 2 is faint yellow or the Sandy resin lens, is to be combined into by concave-sphere and prism to constitute, and the number of degrees of eyeglass 2 confirm that according to principle as follows parameter processes:

Carry out the standard optometry, obtain two and far use refractive diopter accurately, on this basis; According to closely using the glasses service range; With reference to the positive and negative relative adjustment situation of eyes ,+2.50D～+ select the additional convex lens number of degrees that are fit between the 4.00D, the number of degrees of the eyeglass of confirming closely to use 2 with glasses; According to the nearly number of degrees with definite additional substrate prisms 3 inwardly such as glasses service range and interpupillary distance, eye positions.In the present embodiment, right eye is myopia-1.00D, and left eye is myopia-0.50D; Positive and negative relative adjustment is no abnormal, and tiltedly latent≤2 prism degrees, reading/writing distance is 33cm; Interpupillary distance 62mm confirms the additional convex lens of use+3.00D and the prism of additional 8 Base Ins, like this; Surely joining prescription is: right eyeglass :+2.00D/8 Δ BI; Left side eyeglass :+2.50D/8 Δ BI, process the resin lens 2 of faint yellow or Sandy according to joining prescription data surely, two eyeglasses 2 in a left side that makes are installed to the long sight read-write special eyeglasses that mirror holder 1 promptly gets the utility model.

When read-write, wear the utility model long sight read-write special eyeglasses, see Fig. 2; Eyeball 4 is when seeing nearby sighting target 5, and the divergent rays of sighting target 5 is converted into directional light and gets into intraocular through the refraction of eyeglass 2 nearby; What eyes were seen is the distant place sighting target as distant place scene 6; When read-write, wear the utility model long sight read-write special eyeglasses, eyes need not use regulatory function and consolidation function can see sighting target nearby clearly, reach to see nearly long sight effect.

Claims

1. long sight read-write special eyeglasses; Comprise mirror holder (1) and eyeglass (2); It is characterized in that eyeglass (2) is faint yellow or the Sandy resin lens; Eyeglass (2) is the multiple combined lens that is made up of concave-sphere, post mirror, goggles and prism, the number of degrees of eyeglass (2) be far away add respectively on glasses two refraction of eye number of degrees bases have+2.50D～+ convex lens of 4.00D and the prism (3) of 6～10 Base Ins.

2. the described long sight read-write of root a tree name claim 1 special eyeglasses; It is characterized in that described eyeglass (2) is had by the form that concave-sphere, post mirror, goggles and prism constitute the combined type eyeglass: concave-sphere and prism combination; Concave-sphere, post mirror and prism combination; Post mirror and prism combination, goggles and prism combination.