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Mirror-design double-sided zoom lens

A mirror and lens technology, applied in the field of double-sided zoom lenses, can solve the problems of small variable focus, insufficient wearing comfort, narrow zoom optical area, etc. Effect

Pending Publication Date: 2018-08-24
北京睿世力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vast majority of vision rehabilitation institutions or vision care products on the market require teenagers to go to professional institutions for long-term vision training services, which consumes a lot of time for teenagers to study and live, and brings great inconvenience to the daily life of teenagers and children
[0005] Reading glasses and ordinary gradient multi-focal lenses also face many limitations in solving the problem of presbyopia, such as inconvenient to carry, small zoom, etc.
This type of lens has a small amount of variable focus, a very narrow zoom optical area (i.e. zoom visible area), large distortion in the peripheral aberration area, and insufficient wearing comfort.

Method used

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  • Mirror-design double-sided zoom lens
  • Mirror-design double-sided zoom lens
  • Mirror-design double-sided zoom lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0065] This embodiment provides a double-sided zoom lens with a mirror image design, including two symmetrical zoom surfaces with a mirror image design, Figure 1b As shown, one side is marked as A1 side, and the other side is marked as A2 side, such as Figure 1b as shown, Figure 1b Among them, 1 is the A1 side, and 2 is the A2 side.

[0066] The zoom surface is a free-form surface. A freeform surface consists of a highest point and a lowest point. The wave-like change from the highest point to the lowest point is designed by a specific mathematical model.

[0067] The surface structures of the two free-form surfaces are the same, and the highest point of one free-form surface is symmetrical to the highest point of the other free-form surface with respect to the section 3 of the lens, such as Figure 2b As shown, the lowest point of one free-form surface is symmetrical to the lowest point of the other free-form surface with respect to the section 3 of the lens.

[0068]...

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Abstract

The invention discloses a mirror-design double-sided zoom lens. The zoom surface of the lens is a free form surface, the free form surface comprises two optical vertexes, one vertex is the highest point of the free form surface, and the other vertex is the lowest point of the free form surface. The two zoom surfaces have the identical design, the position of the highest point of the free form surface of one surface is corresponding to that of the highest point of the free form surface of the other surface, and the position of the lowest point of the free form surface of one surface is corresponding to that of the lowest point of the free form surface of the other surface.

Description

technical field [0001] The invention belongs to the technical field of optical lenses, in particular to a double-sided zoom lens with a mirror image design. Background technique [0002] Chinese patent 201710727180.7 "Equidistance zoom lens ruled single piece for vision correction double lens group" designed a progressive focus lens that presents multiple focus areas on one lens, and the focus value of each focus area changes into a sequential arrangement . This kind of lens design will cause diopter jumps in the transition interval between corrugations and corrugations, resulting in discontinuous changes in diopters, thereby affecting the effect of visual training. In addition, the lens diopter value extreme difference N between adjacent strip curved surfaces is a value between 10 degrees and 100 degrees, and the specific extreme difference value is not described in detail. When the diopter range tolerated by the human eye exceeds 50 degrees, visual vertigo and the like m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/02G02B3/10
CPCG02B3/02G02B3/10
Inventor 梁友龙严玲赵建军姜习佳
Owner 北京睿世力科技有限公司
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