CN213690146U - Intelligent zooming reading and writing lens - Google Patents

Abstract

The utility model relates to an intelligence zooms reading and writing lens belongs to optical lens technical field. Comprises a lens geometric center, an upper far vision area, a far vision optical center, a super-wide near vision area, a near vision optical center, a wide middle intelligent zoom area and two side astigmatism areas, wherein, the ultra-wide near vision zone is formed by adding a certain convex lens (the range is +0.25D- +0.99D) on the basis of the diopter of the far vision zone, and continuously changes on the whole middle intelligent zoom area, and is additionally provided with a horizontal prism (range: 0.5 delta-6 delta) with an inward substrate on the ultra-wide near vision area, the technology takes the near vision optical center as a prism design reference point, designs the near vision area vertical prism as 0 delta, thereby reduce the negative adjustment effect that the perpendicular prism in myopia district brought, let the inward horizontal prism of basement additional on it exert fully and adjust the relaxation effect, very big promotion vision comfort level wears with control myopia development, the middle-aged and old person's short-range life.

Description

Intelligent zooming reading and writing lens

Technical Field

The utility model relates to an intelligence zooms reading and writing lens belongs to optical lens technical field.

Background

At present, the general myopia incidence situation of children and teenagers in China is severe, and the myopia problem in low age groups is prominent. The total myopia rate of the national children and teenagers in 2018 is 53.6%. Wherein, the age of 6 years old children is 14.5%, the pupil is 36.0%, the junior and middle school students are 71.6%, the senior high school students are 81.0%, and the myopia prevention and control task is difficult.

The cause of myopia has not been determined all over the world, and the current accepted theories include the theory of accommodation and the theory of form deprivation. Either theory emphasizes that long-term near vision is an important cause of myopia. The light from near objects is scattered before entering the eyeball (2 visual fatigue state in fig. 13), and in order to see the near objects clearly, the human eye needs to increase the refractive power of the eye by changing the curvature of the crystalline lens, so that the near objects can still be imaged on the retina to achieve photopic vision, and the action mechanism is called the accommodation of the eye. Meanwhile, when looking at a near object, in addition to the above-mentioned adjustment function, both eyes must rotate inward at the same time to make the visual axis face the object, and this function is called as an aggregate, and the adjustment and the aggregate are accompanied by the pupil contraction, and all three are completed under the innervation of the moving eye. When looking near, the three phenomena of accommodation, convergence and miosis which occur simultaneously are called the near-reflex triple movement. Although the myopia glasses can solve the problem that people cannot see objects far away, the myopia lenses increase the adjusting burden of eyes when people see objects near, and eye fatigue is increased; by using the convex lens and the prism with the inward substrate when looking near, the near light rays can enter the eyes in parallel, so that the eyes are in a relaxed state of 'looking far', therefore, the contradiction between adjustment and collection can be solved, and the axes of the two eyes can excessively abduct to form a negative collection in the process of the three-joint movement of the inner and outer muscles of the eyes. The negative set drives the negative adjustment to reduce the near vision diopter of the eye, thereby bringing positive effects for preventing and controlling the development of the myopia. The theoretical method is accepted by relevant scientific research units and vision experts in the 80 th 20 th century, and products gradually evolve and update from the initial single-focus additional triple prism, double-focus additional triple prism, various prism combinations, external triple prisms and the like.

However, the existing products on the market have some problems, such as:

single focus convex lens plus triple prism: the head-up device can only be used for seeing near, the head-up can cause dizziness, wearing comfort level and use experience are poor, the middle-short distance switching is inconvenient, interference of a vertical prism and a tilted prism exists, and certain influence is brought to the comfort level and the adjustment.

A line two-beam add prism, see fig. 4, 5, 6 (grant publication No. CN 206321895U):

in fig. 4, 1 and 2 represent a far vision area and a near vision area at the upper part of the lens respectively, the luminosity between the upper and lower two focuses is increased in a jumping way (the right arc convex parts of 1 and 2 in fig. 5), the lens solves the problems of discomfort caused by a vertical prism and eye adjustment and relaxation for near distance, the reading comfort degree of the near vision area (2 in fig. 4) is improved, and the lens is not beautiful and has foreign matters and barriers, and other bifocal products have similar problems and the design does not reach the performance of the one-line bifocal product due to the fact that the diopters of the 2 focuses (the upper and lower focuses of 1 and 2 in fig. 4) are different and have larger difference, the phenomenon of image jump cannot be avoided, and the lens has an obvious middle separation line (a 7-shaped separation line between 1 and 2 in fig. 4).

Trifocal additional triangular prism, see fig. 7, 8, 9 (grant publication No. CN 102368119A):

in fig. 7, 1, 2, and 3 represent the distance vision area, the middle vision area, and the near vision area of the lens, respectively, 3 focuses are increased in a jumping manner (1, 2, and 3 right arc-shaped convex parts in fig. 8), three focuses correspond to 3 application scenes (far, middle, and near), theoretically, the problem of eye use requirement of 3 daily main application scenes is solved, similar to the bifocus, the image jump phenomenon exists, the eyeball movement is limited, the appearance is not beautiful, the object viewing has a "barrier feeling" (two separation lines between 1, 2, and 3 areas in fig. 7), and the three focuses need to be adjusted according to the structures of the nose support and the nose bridge, which is inconvenient, the vision is not smooth enough, and the distance between the eyes can change along with the adjustment, causing discomfort.

Student myopia control glasses, see fig. 10, 11, 12 (grant publication No. CN 202075505U):

in fig. 10, the far vision zone 1, the intermediate transition zone 3, the near vision zone 2 and the invisible object zone 4 are designed to solve the problems of natural continuous transition of the sight line and the image jump of bifocal and trifocal glasses, and the design defects are as follows: firstly, the prism design of the lens is referenced to the geometric center of the lens (point C in figure 13), so that the near vision zone has a prism (1 delta-12 delta) in the vertical direction, and the prism degree is increased along with the increase of diopter, thereby affecting the wearing comfort level and being not suitable for long-term wearing; secondly, the diopter increase value range from the far optical center to the near optical center is from +1.0D to +3.0D, according to the progressive focus design principle, the diopter increase range is larger, the near vision zone and the intermediate transition zone are narrower, the invisible object zone is larger, the vertical prism degree generated correspondingly is larger, the width of the intermediate transition zone (3 in fig. 10) and the near vision zone (2 in fig. 10) is designed to be too narrow, the invisible object zone is larger and larger (4 in fig. 10), and the invisible object zone is mostly concentrated on the left and right sides (4 in fig. 10) of the intermediate transition zone and the near vision zone (2 in fig. 10), when the progressive triangular prism is added in the near vision zone (2 in fig. 10), the visual field range is limited due to the too narrow width of the near vision zone (2 in fig. 10), the eyeball easily enters the invisible object zone (4 in fig. 10), causing discomfort, and the design has the vertical prism from top to bottom (2 in fig. 10), top-down vertical prisms shown in fig. 12 c) that affect wearing comfort and are not suitable for active and active behavior habits of teenagers. Adding inward-facing triangular prisms (horizontal prisms shown as c in FIG. 12) in the near vision zone (2 in FIG. 10); thirdly, combining the age and the physiological diopter (see table I) of the teenager, the teenager has a certain distance vision adjusting reserve, the diopter increasing range from the distance optical center to the near optical center is + 1.0D- +3.0D, the diopter increasing value range is too large, and the increasing value is superposed with the original physiological diopter of the teenager, so that the adjusting degree and the prism effect are excessive, and the wearing comfort degree is influenced.

In view of the above-mentioned drawbacks, the present designer actively makes research and innovation to create an intelligent zoom reading/writing lens, which has industrial application value.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides an intelligent digital zoom reading/writing lens, which combines the disadvantages of the prior art and the application scenario of the convex lens combined with the inward base triple prism, and comprises a lens geometric center, an upper far vision area, a far vision optical center, a super-wide near vision area, a near vision optical center, a wide middle intelligent zoom area and two side astigmatism areas, wherein the super-wide near vision area is formed by adding a certain convex lens (range: +0.25D to +0.99D) on the basis of the far vision diopter area, and continuously changing on the whole middle intelligent zoom area, and simultaneously adding an inward base horizontal triple prism (range: 0.5 Δ to 6 Δ) on the super-wide near vision area, the technology uses the near vision optical center prism as a design reference point, and designs the near vision area vertical prism to be 0 Δ, thereby reducing the negative adjustment effect brought by the near vision area vertical prism, the horizontal prism with the inward base can fully play the role of adjusting and relaxing, the visual comfort is greatly improved, and the device has positive effects on preventing and controlling the development of myopia and wearing for the middle-aged and the old in short-distance life.

The utility model discloses an intelligence is zoomed and is read write lens, lens include far vision district, lens geometric center that are located lens upper portion, be located the super wide near vision district of lens lower part, be located the far vision optical center of far vision district and the astigmatism district of middle intelligent zoom district and both sides between the near-sighted optical center of super wide near vision district, super wide near vision district is that the range of addition is +0.25D- + 0.99D's convex lens on the basis of far vision district diopter, and convex lens is continuous variation on whole intelligent zoom district, the near-sighted optical center department of super wide near vision district still is equipped with the horizontal prism that the scope is 0.5 delta ~ 6 delta and 0 delta's vertical prism.

Further, the width of the far vision zone is 35-40 mm.

Further, the width of the super-wide near vision area is 40-50 mm.

Furthermore, the width of the middle intelligent zoom area is 25-30 mm, and the length of the middle intelligent zoom area is 3-10 mm.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. use near vision district center as prism design reference point, with the vertical prism design of near vision district 0 delta, thereby reduce the negative regulation effect that the vertical prism of near vision district brought, let the inside horizontal prism of additional base fully play and adjust the relaxation effect, very big promotion vision comfort level, be different from traditional gradual change burnt design and use lens geometric center as prism design reference point, this technique uses near vision district center as prism design reference point, add the ascending vertical prism of base, in order to neutralize because the additional top-down prism that brings of diopter, promote comfort level, beautiful thin effect.

2. According to the design principle of the progressive-focusing lens, diopter can be continuously increased from a far vision area to a near vision area, the larger the diopter increase value is, the narrower the near vision area and an intermediate transition area are, the larger the invisible object area is, and the larger the vertical prism degree is correspondingly generated; meanwhile, by combining the age of teenagers and the physiological diopter (see table I), the diopter increase range of the lens is controlled to be +0.25D- +0.99D, so that the width ranges of the visual zones of the far, middle and near distance reading and writing zones, namely the widths of the far visual zone, the middle intelligent zoom zone and the visual field of the lower near vision zone, are widened, and the eye using requirements of far, middle and near scenes are well met.

3. The lens adopts the symmetrical design that the optical center of a far vision area and the optical center of a near vision area are on the same vertical line, and ensures that an additional horizontal prism can be effectively controlled (the eccentric design can cause the generation of an off-design prism, thereby leading the additional prism to lose control), thereby ensuring the prism effect.

4. The length of the intelligent zoom area of the lens is designed to be 3-10 mm, and the lens is more suitable for the characteristics of fast eyeball movement of teenagers and limited eyeball movement distance of middle-aged and old people.

5. On the basis of the design, the base inward triple prism is added, the wearing is more comfortable, the object-viewing blind area cannot occur, the visual fatigue caused by the gathering force of the short-distance eye can be relieved, and the glasses have positive effects on preventing and controlling the development of myopia and wearing in the short-distance life of the middle and old aged.

Table 1: age and physiological diopter

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front view of the intelligent zoom reading/writing lens of the present invention;

fig. 2 is a schematic side view of the intelligent zoom reading/writing lens of the present invention;

FIG. 3 is a schematic top view of the area 1, 3, 2 in FIG. 1;

fig. 4 to 13 are schematic structural views of a prior art product;

wherein, in the figure;

1. a distance vision zone; 2. a super-open near vision zone; 3. a middle intelligent zoom zone; 4. an astigmatism region; 11. a far-vision optical center; 12. a near vision optical center; 13. the geometric center of the lens.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, in a preferred embodiment of the present invention, the lens includes a far vision area 1 located on the upper portion of the lens, a geometric center 13 of the lens, a super-wide near vision area 2 located on the lower portion of the lens, a middle intelligent zoom area 3 located between a far vision optical center 11 of the far vision area 1 and a near vision optical center 12 of the super-wide near vision area 2, and astigmatic areas 4 on both sides, the super-wide near vision area 2 is a convex lens with an addition range of +0.25D to +0.99D on the basis of the far vision area 1 diopter, and the convex lens is continuously changed on the whole intelligent zoom area 3, and a horizontal triangular prism with a range of 0.5 Δ to 6 Δ and a vertical prism with a range of 0 Δ are further disposed at the near vision optical center 12 of the super-wide near vision area 2.

Further, the width of the far vision area 1 is 35-40 mm.

Further, the width of the super-wide near vision zone 2 is 40-50 mm.

Furthermore, the width of the middle intelligent zoom area 3 is 25-30 mm, and the length is 3-10 mm.

The utility model discloses a work and design principle do:

based on the application principle of the gradually-focusing combined substrate inward triple prism, the method is mainly used for reducing the fatigue of eyes used at short distance for a long time.

1. Use myopia optics center 12 as prism design reference point, 2 perpendicular prism designs of super wide myopia district for 0 delta, thereby reduce the negative regulation effect that perpendicular prism brought in the super wide myopia district 2, let the inside horizontal prism of additional base give full play to adjust the relaxation effect, very big promotion vision comfort level, it uses lens geometry center 13 as prism design reference point to be distinguished from traditional gradual change burnt design, this technique uses myopia optics center 12 as prism design reference point, behind the ascending perpendicular prism of additional base, in order to neutralize the prism of top-down because the diopter attachs brings, promote the comfort level, beautiful thin effect.

2. According to the design principle of the progressive-power lens, diopter from a far vision area 1 to a super-wide near vision area 2 is continuously increased, the larger the diopter increase value is, the narrower the near vision area and a middle transition area are, the larger the invisible object area is, and the larger the vertical prism degree is correspondingly generated; meanwhile, by combining the age of teenagers and the physiological diopter rule thereof, the diopter increase range of the lens is controlled to be +0.25D- +0.99D, so that the width ranges of the visible areas of the far, middle and near reading and writing areas are widened, namely the widths of the far visual area 1 and the middle intelligent zoom area 3 and the visual field of the lower ultra-wide near vision area 2, and the eye using requirements of far, middle and near scenes are well considered.

3. The lens adopts the symmetrical design that the far vision optical center 11 and the near vision optical center 12 are on the same vertical line, which ensures that the additional horizontal prism can be effectively controlled to be eccentric, and leads to the generation of an off-design prism, thereby leading the additional prism to lose control and ensuring the prism effect.

4. The length of the intelligent zoom zone 3 of the lens is designed to be 3-10 mm, and the lens is more suitable for the characteristics of fast eyeball movement of teenagers and limited eyeball movement distance of middle-aged and old people.

5. On the basis of the design, the horizontal triple prism with the inward substrate is added, the balance adjustment and the collection are realized, the wearing is more comfortable, the object-viewing blind area cannot appear, the visual fatigue caused by the collection force of the short-distance eye use for a long time can be relieved, and the glasses have positive effects on preventing and controlling the myopia development and the short-distance life wearing of the middle-aged and the old.

Comparative example: the student myopia control glasses disclosed in the authorization notice number CN202075505U are used as a control example;

detect respectively the utility model discloses far vision district width, well vision district width and the near-sighted district width of lens in intelligence zooming reading and writing lens and the contrast example, concrete testing result is as shown in the following table:

TABLE 1 data of test results

Can find out by last in the test data, the utility model discloses an intelligence zooms reading and writing lens with lens diopter increase range control at +0.25D- +0.99D to widened far away, well, the visual zone width scope of reading and writing district closely, the visual field in the width, the super wide myopia district (2) of lower part of far away visual zone (1), middle intelligent zoom district (3), fine compromise the eye demand of using of far away, well, near scene.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (4)

1. An intelligence zooms reading and writing lens which characterized in that: the lens is including being located far-vision district (1) on lens upper portion, lens geometric center (13), super wide near-sighted district (2) that are located the lens lower part, being located middle intelligent zoom district (3) and astigmatism district (4) of both sides between far-sighted optical center (11) of far-vision district (1) and the near-sighted optical center (12) of super wide near-sighted district (2), super wide near-sighted district (2) is the convex lens that the range is +0.25D- +0.99D on the basis of far-sighted district (1) diopter, and convex lens is continuous variation on whole intelligent zoom district (3), near-sighted optical center (12) department of super wide near-sighted district (2) still is equipped with the range and is 0.5 delta ~ 6 delta's horizontal triple prism and 0 delta's vertical prism.

2. The intelligent variable-focus R/W lens according to claim 1, wherein: the width of the far vision area (1) is 35-40 mm.

3. The intelligent variable-focus R/W lens according to claim 1, wherein: the width of the ultra-wide near vision zone (2) is 40-50 mm.

4. The intelligent variable-focus R/W lens according to claim 1, wherein: the width of the middle intelligent zoom area (3) is 25-30 mm, and the length of the middle intelligent zoom area is 3-10 mm.

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