Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Progressive multifocal lens and progressive multifocal glasses applying same

A progressive multi-focus, lens technology, applied in glasses/goggles, optics, instruments, etc., can solve the problem of insufficient visual acuity, and achieve the effect of improving visual acuity

Inactive Publication Date: 2019-06-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the visual acuity of existing progressive addition lenses is not high enough

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Progressive multifocal lens and progressive multifocal glasses applying same
  • Progressive multifocal lens and progressive multifocal glasses applying same
  • Progressive multifocal lens and progressive multifocal glasses applying same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0026] Please refer to Figures 1 to 3 , a preferred embodiment of the present ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A progressive multifocal lens comprises a first lens layer, a second lens layer and a third lens layer which are sequentially stacked together, and the first lens layer, the second lens layer and thethird lens layer are made of different materials. The progressive multifocal lens is mainly composed of the first lens layer, the second lens layer and the third lens layer, and the first lens layer,the second lens layer and the third lens layer are made of different materials, so that the first lens layer, the second lens layer and the third lens layer have different refractive indexes, and thevisual sensitivity of the progressive multifocal lens is further improved. In addition, the invention also provides progressive multifocal glasses applying the progressive multifocal lens.

Description

technical field [0001] The present invention relates to a progressive multifocal lens and progressive multifocal glasses using the progressive multifocal lens. Background technique [0002] Progressive multifocal lenses can integrate different refractive correction functions into the same lens to form multiple focal points, thereby providing the wearer with clear vision from the far point to the near point. The radius of curvature of the rear surface of the progressive multifocal lens is gradually and continuously increased to a fixed value from the far point of vision to the near point of vision according to a certain change law. Distance vision is clear. However, the visual acuity of the existing progressive addition lenses is not high enough. SUMMARY OF THE INVENTION [0003] In view of this, it is necessary to provide a new progressive addition lens to solve the above problems. [0004] In addition, it is also necessary to provide progressive add-on glasses to which...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02G02C7/06
CPCG02C7/085G02C2202/16G02C7/061G02C2202/18
Inventor 李文凯
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com