Microlens array and image sensing device using the same
US7897986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microlens array is provided, including a base layer with a plurality of first microlenses formed over a first region thereof, wherein the first microlenses are formed with a first height. A plurality of second microlenses are formed over a second region of the base layer, wherein the second region surrounds the first region and the second microlenses are formed with a second height lower than the first height. A plurality of third microlenses are formed over a third region of the base layer, wherein the third region surrounds the second and three regions, and the microlenses are formed with a third height lower than the first and second heights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.