Infrared sensing device
US11402259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jul 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/0485
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A meniscus lens has a dome shape and has a first surface facing a lens array and a second surface facing an infrared sensing element. The meniscus lens has a central portion and a peripheral portion. The central portion includes a top point that is an intersection between the optical axis of the meniscus lens and the first surface. The peripheral portion includes an end of the first surface of the meniscus lens. With respect to the central portion of the meniscus lens, an aplanatic point of the first surface is located at the focus of the lens array. With respect to the peripheral portion of the meniscus lens, an aplanatic point of the second surface is located at the focus of the lens array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.