Out-of-focus spectacle lens and mold

Abstract

The invention discloses an out-of-focus spectacle lens and a mold, and belongs to the technical field of lens design and processing. The out-of-focus spectacle lens comprises a mother lens, and the surface of the mother lens is provided with a design surface for reducing side center hyperopia out-of-focus. A composite area is arranged on the surface of the mother lens, the composite area comprises a plurality of groups of ring belts, and each ring belt comprises a micro lens for forming myopia defocus and a micro cylindrical lens for forming astigmatism defocus. The die comprises a first die holder and a second die holder which are used for forming the surface of the mother mirror. According to the invention, the micro lens and the micro cylindrical lens are configured, so that sufficient myopia out-of-focus stimulation signals around the retina and astigmatism out-of-focus stimulation signals of hypercorrection are increased; the device is used for superposing and configuring sufficient myopia defocusing and astigmatism defocusing stimulation functions capable of generating overpositive compensation for hyperopia defocusing and astigmatism defocusing defects existing around the retina of naked eyes, so that a wearer can obtain more and more comprehensive optical signals for inducing the reverse development of an eye axis. The eye axis growth of the teenagers in the growth period is better inhibited.

Description

technical field [0001] The present application relates to the technical field of lens design and processing, in particular to a defocus spectacle lens and a mold. Background technique [0002] In recent years, the multi-point positive defocusing lens that appears in recent years adopts the form of microlenses to configure a sufficient amount of myopia defocusing around the retina, and uses different refractive powers generated by different powers from the optical center to suppress the development of myopia. [0003] In the lens structure using the microlens structure superimposed on the hyperopic defocus correction design, the function of myopia defocusing is obtained by using the refractive power formed by the microlens and the hyperopic defocusing design to obtain the function of defocusing, and at the same time, the hyperopic defocusing effect in the non-microlens area is compensated. However, in the peripheral area of ​​a pupil diameter saccade lens, there are only the ...

AI Technical Summary

Problems solved by technology

The amount of astigmatism defocus is the sagittal direction of the average defocus amount, which is distributed in a rotational symmetry, and the astigmatism defocus increases with the increase of the average defocus amount, so if the astigmatism defocus around the retina cannot be corrected or overcorrected, It will cause the wearer to feel dizzy after wearing glasses, which will affect the wearing comfort and further affect the functionality of the product

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