Pair of refraction and diffraction mixed type light and thin Alvarez zoom glasses

A technology of refraction, mixing, and glasses, which is applied in the field of glasses, can solve problems such as limiting the flexibility of surface shape selection, and achieve the effects of light weight, convenient use, and thin lens thickness
CN112558325AActive Publication Date: 2021-03-26赵振铎
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
赵振铎
Publication Date
2021-03-26

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Abstract

The invention relates to the technical field of glasses, in particular to refraction and diffraction mixed type light and thin Alvarez zoom glasses. The glasses comprise a glasses frame, lenses and acontrol part, wherein each lens is composed of two refractive-diffractive hybrid Alvarez lenses with complementary surface shapes; the center area of the refractive-diffractive hybrid Alvarez lens isa continuous surface shape, while the edge area of the refractive-diffractive hybrid Alvarez lens is a diffraction microstructure, so that the distribution area of the continuous surface shape and thediffraction microstructure is determined according to the thickness limitation of the zoom glasses lens; wherein each lens is fixed on a guide rail of the lens bracket through a sliding block, and one or two of the two refractive-diffractive hybrid Alvarez lenses freely slide on the guide rail of the lens bracket so as to realize the change of the degree. According to the invention, various surface-shaped structures can be selected according to different requirements; therefore, a user can automatically adjust the degree, the degree adjusting range is large, the thickness of the lenses is small, and the whole glasses are light in weight, comfortable to wear and convenient to use.
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Description

technical field

[0001] The invention relates to the technical field of spectacles, in particular to a refraction-diffraction hybrid thin and light Alvarez zoom spectacles. Background technique

[0002] With the increasing popularity of electronic products and the increasing pressure of study and work, there are more and more myopia and hyperopia groups. With the improvement of living standards, people also put forward higher requirements for glasses. They no longer only require vision correction and treatment and health care functions, but also have more requirements for the appearance, portability and zoom function of glasses. For hyperopic patients, it is generally necessary to use a gradient multi-focal lens or multiple pairs of glasses alternately to meet different visual needs. For myopia patients, if the degree of glasses is adjusted according to visual needs, so that the human eye can clearly observe the target in a relaxed state and relieve eye muscle fatigue, it is...

Claims

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