TW201939117A - Lens using star-shaped clear zone to increase range of out-of-focus image using a defocusing zone to increase the range of the out-of-focus image formed in the central clear image zone - Google Patents

Abstract

The present invention relates to a lens using star-shaped clear zone to increase the range of an out-of-focus image. The surface of the lens is formed with a central optical zone which allows light to pass through, in order to form an image in the central clear image zone of a retina of an eyeball. The periphery of the central optical zone is surrounded by a peripheral optical zone that forms an image in a peripheral out-of-focus image zone around the central clear image zone. The surface of the central optical zone is provided with a clear zone that is approximately star-shaped and allows light to pass through to form an image in the central clear image zone. A defocusing zone is formed outside the clear zone, such that the defocusing zone can be used to increase the range of the out-of-focus image formed in the central clear image zone, so as to increase the range of the optical zone having a defocusing effect on the retina. As a result, the lens has the function of controlling the myopia without increasing the defocusing level of the lens. Therefore, after passing through the defocusing zone, the light will be focused in front of the retina, so as to effectively delay or prevent the diopter of myopia from getting worse.

Description

Lenses that use a star-shaped clear zone to increase the out-of-focus image range

The present invention relates to a lens that uses a star-shaped clear area to increase the range of defocused images, especially the surface of the central optical area of the lens is provided with a clear area that allows light to pass through the central clear image area of the retina for clear imaging. Out-of-area areas are formed with defocus areas for increasing the defocus image range in the central clear image area to delay the deepening of myopia through the defocus areas.

According to the current, in order to solve the problem of myopia, most people wear myopia glasses, contact lenses, corneal surgery or corneal lens correction. However, in order to effectively control the growth of myopia, Some manufacturers have developed peripheral defocus lenses. The principle of peripheral defocus lenses is that the diopter gradually decreases from the center to the surroundings, so that when light passes through the lens, the focus of the middle area will fall on the retina, and the focus of the peripheral area will fall. In front of the retina, it can reduce the situation of peripheral hyperopia and defocus, and can control the excessive extension of the eye axis, thereby slowing the speed of myopia deepening and effectively controlling peripheral vision correction.

However, the first wearing of the peripheral defocus lens requires a short adaptation period, and if the peripheral refractive power is reduced too much, it will make the defocus power too much, which will affect the vision of the central field of view, making it easier for the wearer to wear it for a long time. The occurrence of dizziness can affect the comfort of the wearer and even the safety of the wearer.

Therefore, how to solve the above-mentioned shortcomings and inconveniences is to engage in Relevant players in this industry are eager to study the direction of improvement.

The main object of the present invention is that a central optical area is formed on the lens surface for light to pass through to the central clear image area of the retina of the eyeball, and the periphery of the central optical area is surrounded by a peripheral defocus imaged around the central clear image area. The peripheral optical area on the image area. The surface of the central optical area of the lens is provided with a clear area that is approximately star-shaped and allows light to pass through the clear image on the central clear image area. The parts outside the clear area are formed on the central clear area. In the image area, the defocus area of the defocus imaging can use the defocus area to increase the overall defocus image range, so that the original space in the central optical area can be effectively used to expand the defocus image range on the retina of the eyeball. The clear area of the star is to ensure that the wearer can maintain a clear field of vision when the eyeball moves horizontally and vertically when reading, and the oblique part is used less during reading, so it is used to Increasing the range of defocused images, thereby increasing the range of optical areas with defocusing effects on the retina, can still exist without increasing the defocus power of the lens It has the function of controlling the degree of myopia, so the light will focus on the front of the retina after passing through the defocus area, so the ciliary muscle will relax and flatten the lens. Therefore, the defocus area will relax the ciliary muscle of the eyeball to avoid ciliary Muscle length is in a state of tightness and spasm, thereby preventing the axis from elongating, thereby effectively delaying or preventing the degree of myopia deviation from deepening, thereby achieving the purpose of correcting and improving myopia.

The secondary purpose of the present invention is that the corners of the ends of the plurality of convex portions in the clear area are arc-shaped. When the lens is worn on the eyeball, the wearer can not feel the arc-shaped corners Sharp foreign body sensation in order to improve the comfort of wearing.

1‧‧‧ lens

11‧‧‧ outer surface

12‧‧‧ inner surface

13‧‧‧ Central Optical Zone

131‧‧‧Clear area

1311‧‧‧ convex

1312‧‧‧ Corner

132‧‧‧ defocus area

14‧‧‧Peripheral optical zone

15‧‧‧Positioning Department

2‧‧‧eyeball

21‧‧‧ Retina

211‧‧‧Central clear image area

2111‧‧‧Clear image

2112‧‧‧Second defocus image

212‧‧‧Peripheral out-of-focus image area

2121‧‧‧First defocus image

22‧‧‧ Pupil

23‧‧‧ ciliary muscle

24‧‧‧ Crystal

The first figure is a schematic plan view of the present invention.

The second figure is a schematic diagram of the optical path of the present invention.

The third figure is a schematic diagram of the imaging of the retina of the present invention.

Please refer to the first, second, and third figures. The lens 1 (which may be a contact lens 1 or a frame-type spectacle lens 1) of the present invention includes an outer surface 11 and an inner surface 12, and the outer surface 11 and the inner surface A central optical area 13 is formed on the central clear image area 211 (that is, the fovea of the macular fovea of the retina 21) for light to pass through and imaged on the central retina 21 of the eyeball 2. The surface of the central optical area 13 is provided with a non-circular shape (About star shape) clear area 131, and the clear area 131 has a plurality of convex portions 1311 extending vertically and horizontally to the peripheral edge of the central optical area 13 and an arc-shaped corner is formed at the end of the convex portion 1311 1312, while the central optical area 13 is located outside the clear area 131, a defocus area 132 is formed, and a peripheral defocused image area 212 is formed around the central clear image area 211 around the central optical area 13 (that is, the surrounding On the surface of the lens 1, a peripheral optical region 14 on the center of the macular center (parafovea) is provided with a positioning portion 15 on the surface of the lens 1 to prevent the lens 1 from rotating.

The clear area 131 and the defocus area 132 of the above-mentioned central optical area 13 are preferably formed on the outer surface 11 of the lens 1, but in practical applications, the lens 1 may also be formed with a clear area 131 and a defocus on the inner surface 12. The region 132 or the outer surface 11 and the inner surface 12 is simultaneously formed with a clear region 131 and a defocus region 132.

Furthermore, the clear region 131 of the central optical region 13 is provided with a plurality of convex portions 1311 extending in the vertical and horizontal directions, and the plurality of convex portions 1311 can be used for eyes. When the pupil 22 of the ball 2 is viewed or viewed in the vertical or horizontal direction, a clear visual image can be formed on the retina 21, and the plurality of convex portions 1311 of the clear area 131 can be used to ensure the clear visual image required by the wearer. Requirements (such as: in the case of reading, the eyeball 2 needs to view the text horizontally or vertically, and the plurality of convex portions 1311 can be used to meet the reading needs), and the wearer does not need to use a clear visual image of the desired location. Can be used as the defocus area 132 of the central optical area 13 (eg, the oblique part is less used when reading, so it can be used as the defocus area 132 to increase the defocus image range), and the The position formed by the defocused area 132 of the central optical area 13 is the position where the pupil 22 of the eyeball 2 corresponds to the position on the lens 1 when the eyeball 2 is viewed obliquely.

However, the refractive power of the defocus area 132 and the peripheral optical area 14 of the central optical area 13 is smaller than the refractive power of the clear area 131 of the central optical area 13 so that the lens 1 has a peripheral defocus function, and the defocus The refractive power of the region 132 is preferably equal to the refractive power of the peripheral optical region 14.

In addition, if the above-mentioned lens 1 is a contact lens type, the positioning portion 15 of the lens 1 is preferably disposed around the inner surface 12, thereby avoiding affecting the setting of the central optical region 13 and the peripheral optical region 14, and further The central optical area 13 and the peripheral optical area 14 are easily processed and formed, but in actual application, the positioning portion 15 can also be provided on the outer surface 11 of the lens 1, or both the outer surface 11 and the inner surface 12; and the positioning The design type of the portion 15 is that the upper and lower edges of the inner surface 12 can be thinned so that a limiting groove (not shown in the figure) is formed at the upper and lower edges, respectively. The lens 1 is firmly located on the eyeball 2 and avoids rotation. However, there are many ways and structures for positioning the lens 1 on the eyeball 2. Therefore, any structure that can achieve the aforementioned effects should be covered by the present invention. Such simple modifications and the like effect Structural changes should be included in the patent scope of the present invention by the same reason. If the lens 1 is a spectacle frame type, its positioning portion 15 can be a mirror frame, which can be used for positioning on a human face. .

When the present invention is actually used, the lens 1 can be worn on the eyeball 2 first, and the positioning portion 15 is used to position the eyeball 2 to prevent the lens 1 from rotating on the eyeball 2 easily, and when light passes through the lens When the central optical area 13 and the peripheral optical area 14 of 1 are transmitted, the light passing through the peripheral optical area 14 will form a first defocused image 2121 in the defocused image area 212 around the retina 21 (as shown in the third figure). When the light passes through the central optical area 13, the light passing through the clear area 131 of the central optical area 13 forms a clear image 2111 in the central clear image area 211 of the retina 21, and passes through the defocused area of the central optical area 13. The light of 132 will form a second defocus image 2112 in the area outside the clear image 2111 of the central clear image area 211, and the defocus image range on the retina 21 can be expanded through the defocus area 132.

And when the wearer's eyeball 2 browses things horizontally or vertically, a clear image 2111 can be formed in the central clear image area 211 through the plurality of convex portions 1311 of the clear area 131, thereby making both the horizontal and vertical directions Things can be clearly viewed, and the light passing through the defocused area 132 will produce a second defocused image 2112. Because the second defocused image 2112 can be used to expand the defocused range, thereby improving the The optical range of the defocus function can still control the near vision power without increasing the defocus power of the lens 1. Therefore, the required defocus power can be reduced, and the number of defocus power can be reduced. Affects the possibility of central visual acuity, thereby reducing the adjustment of the ciliary muscle 23 of eyeball 2 through the lower diopter defocus region 132 to reduce the adjustment, thereby flattening the crystalline lens 24 In this way, the image of the peripheral optical region 14 can also fall on the retina 21 to prevent the ciliary muscle 23 on the eyeball 2 from being in a tight and convulsive state for a long time, thereby preventing the eye shaft from being elongated, and can effectively delay or Prevent the myopia deviation from deepening, and then achieve the effect of correcting and improving myopia.

The invention has the following advantages:

(1) The central optical area 13 of the lens 1 is a structural design that can be provided with a defocus area 132 in an oblique area, so that the original space of the central optical area 13 can be effectively used to expand the retina 21 on the eyeball 2 The defocused image range, because the defocused image range is expanded, thereby increasing the range of the defocused optical area on the retina 21, can still have the function of controlling myopia without increasing the defocus power of lens 1, Can reduce the required defocus power, thereby reducing the possibility of affecting the central field of vision due to too many defocus power, and the defocus area 132 can relax the ciliary muscle 23 of the eyeball 2 to avoid the ciliary muscle 23 It is in a state of tightness and convulsion for a long time, thereby preventing the extension of the eye axis, thereby effectively delaying or preventing the degree of myopia deviation from deepening, thereby achieving the effect of correcting and improving myopia.

(2) The ends of the plurality of convex portions 1311 of the clear area 131 are formed with arc-shaped corners 1312. Because the corners 1312 are arc-shaped, when the lens 1 is used as the lens 1 of a contact lens and is worn on When the eyeball 2 is on, the sharp foreign body feeling will not be felt, and the wearing comfort can be improved.

In summary, the above-mentioned lens using the star-shaped clear area to increase the defocused image range is practically implemented and implemented in order to achieve its efficacy and purpose. Therefore, the present invention is a research and development with excellent practicality. In line with the application requirements for invention patents, I filed an application in accordance with the law, and I hope that the trial committee will grant this case as soon as possible to protect the inventor's hard research and development and creation. , Real sense Deben.

Claims (9)

A lens using a star-shaped clear area to increase the defocus image range. The lens includes an outer surface and an inner surface, and a center is formed on the outer surface and the inner surface for light to pass through to form a clear image area in the center of the retina of the eyeball. An optical area, and a peripheral optical area formed on a peripheral defocused image area around the central clear image area around the central optical area is characterized in that the surface of the central optical area of the lens is provided with a light passing through for clear imaging A star-shaped clear area is formed on the central clear image area of the retina, and the clear area has a plurality of convex portions extending vertically and horizontally, and parts outside the clear area are formed for increasing the defocus image in the central clear image area The defocus area of the range is further provided with a positioning portion on the lens surface to prevent the lens from rotating. As described in item 1 of the scope of the patent application, a lens using a star-shaped clear area to increase the defocus image range, wherein the clear area of the central optical area is non-circular. As described in item 1 of the scope of the patent application, a lens that uses a star-shaped clear area to increase the defocus image range, wherein the clear area and the defocus area of the central optical area are set at the outer surface of the lens. As described in item 1 of the scope of the patent application, a lens using a star-shaped clear area to increase the defocus image range, wherein the clear area and the defocus area of the central optical area are disposed at the inner surface of the lens. As described in item 1 of the scope of the patent application, a lens using a star-shaped clear area to increase the defocus image range, wherein the outer surface and the inner surface of the lens are provided with a clear area and a defocus area. As described in item 1 of the scope of the patent application, a lens using a star-shaped clear area to increase the defocus image range, wherein the plurality of convex portions of the clear area extend to the periphery of the central optical area. Mirror using star-shaped clear area to increase defocus image range as described in item 1 of patent application scope Sheet, wherein the plurality of convex portions of the clear region have corners that are arc-shaped. As described in item 1 of the scope of patent application, a lens with a star-shaped clear area to increase the defocus image range, wherein the diopters of the defocus area of the central optical area and the peripheral optical area are smaller than the diopters of the clear area, and the defocus The refractive power of the area is preferably equal to the power of the peripheral optical area. As described in item 1 of the scope of the patent application, a lens using a star-shaped clear area to increase the defocus image range, wherein the positioning portion of the lens is formed at the edge of the inner surface of the lens.