Lens structure formed by materials in different refractive indexes
US10732406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens structure formed by materials in different refractive indexes includes a sphere which is a round ball formed by a first portion and a second portion, a first lens which is formed on the first portion, a separation layer which is disposed between the sphere and the first lens, a second lens which is formed on the second portion, and a third lens which is formed on the second lens and opposite to the sphere. The first lens, the second lens and the third lens are formed respectively by a material in different refractive index and are provided respectively with a light absorption curve in different curvature, so that a light beam can pass through these light absorption curves to form plural times of light condensing effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.