Shell type spiral gradient gradual change defocusing lens and preparation method thereof

A spiral and shell technology, which is applied in the field of shell-type spiral gradient defocus lenses and its preparation, can solve the problems of myopia or myopia deepening, visual field constriction, blurred vision, etc. firm effect

Pending Publication Date: 2022-05-10
EYEPOL POLARIZING TECH XIAMEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned problems in the formation of myopia in children and adolescents, the peripheral vision is in a defocused state, and the surroundings of the viewpoint are blurred, which causes the visual ...

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  • Shell type spiral gradient gradual change defocusing lens and preparation method thereof
  • Shell type spiral gradient gradual change defocusing lens and preparation method thereof
  • Shell type spiral gradient gradual change defocusing lens and preparation method thereof

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Embodiment Construction

[0036] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0038] refer to figure 1 , a shell-type spiral gradient defocusing lens disclosed in the embodiment of the present application, including a base layer, a shell-type spirally inclined rectangular grating film layer 3 and an anti-reflection film layer 4, wherein the base laye...

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Abstract

The invention relates to a shell-type spiral gradient gradual change defocusing lens which comprises a substrate layer, and a shell-type spiral inclined rectangular grating film layer is arranged on the substrate layer. The shell-type spiral inclined rectangular grating film layer comprises inclined rectangular gratings which are continuously arranged from the innermost starting point of a shell-type spiral curve to the outermost end point of the shell-type spiral curve, and the inclination angles of the inclined rectangular gratings are continuously increased from the innermost starting point to the outermost end point. And the light beams of each incident angle are continuously focused in front of the retina after entering the shell type spiral inclined rectangular grating film layer. The inclination angle of the inclined rectangular grating is continuously increased from the innermost starting point to the outermost ending point without interruption, so that the incident beams of each incident angle are continuously focused in a deceleration signal area in front of the retina, and the focusing in front of the retina is relatively concentrated; therefore, the effects of no blind area, no channel, left and right eye refraction correction and shortsightedness defocusing are achieved.

Description

technical field [0001] The present application relates to the technical field of lenses, in particular to a shell-type spiral gradient defocus lens and a preparation method thereof. Background technique [0002] The eye axis of a normal person is about 23.5mm to 24mm. Every time the eye axis increases by 1mm, the degree can increase by up to about 300 degrees. With the increase of the eye axis, the retina of the fundus is thinned. At this time, the eye is like a balloon, and retinal damage occurs. The probability of a hole and detachment increases accordingly. [0003] By interfering with the normal vision of animals, the researchers observed the process of animal eyeballs forming refractive errors, and found that different types of defocus stimuli formed in the animal eyeballs would have a diametrically opposite effect on the growth of the animal's eyes; emmetropia refers to When the eyeball is in a static (non-adjusted) state, the parallel rays emitted by an object 5m awa...

Claims

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Application Information

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IPC IPC(8): G02C7/02G02B1/11
CPCG02C7/028G02B1/11
Inventor 吴建斌吴建选陈建发
Owner EYEPOL POLARIZING TECH XIAMEN
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