Zoom lens and manufacturing method, dynamic zoom lens set and using method

Abstract

The invention discloses a zoom lens and a manufacturing method, a dynamic zoom lens set and a using method. An optical area formed by optical centers which change continuously is arranged on the zoom lens. The diopter zoom range of the optical area is from -15d-0d at one end to 0d-+5d at the other end. The optical area is 4-70 mm long and 2-50 mm wide. The luminosity of the optical area is smaller than or equal to 250 degrees. Due to the fact that the optical area is large, astigmatism can be well controlled, and therefore the visual function training requirement can be met under the condition that normal vision is not affected; besides the function that the zoom lens serves as a key equipment part for preventing and controlling myopia of adolescents and children, the zoom lens can be widely used for eliminating visual fatigue, optical correction and visual function training of non-pathologic amblyopia and presbyopia and various refractive errors, and finally the targets of optimizing visual functions, improving and correcting vision, finally improving naked vision and guaranteeing stable and reliable vision health are achieved through regular mobile zooming of the zoom lens or the dynamic zoom lens set.

Description

Technical field [0001] The invention relates to a zoom lens and a manufacturing method, a dynamic zoom lens group and a use method. Background technique [0002] With the progress of society, more and more young people have developed myopia and amblyopia due to various internal or external factors; in order to solve such problems, the usual solution is to use a series of professional equipment to Conduct vision training to achieve the goal of improving naked vision. However, most of the vision rehabilitation training on the market currently needs to be carried out in specialized rehabilitation institutions, which will directly affect normal work and study, and cause great inconvenience to daily life. [0003] At present, a variety of designs of progressive multi-focus zoom lenses have appeared on the market, but such lenses have a small amount of zoom and a very narrow zoom optical area (ie, zoom viewable area), which makes the user feel insufficient when using it. Summary of the...

AI Technical Summary

Problems solved by technology

However, most of the vision rehabilitation training currently on the market needs to be carried out in specialized rehabilitation institutions, which will directly affect normal work and study, and will bring great inconvenience to daily life

[0003] At present, there are progressive multi-focal zoom lenses with various designs on the market, but these lenses have a small amount of variable focus and a very narrow zoom optical area (that is, the zoom viewing area), which is not comfortable enough for users to use.

Images