Dual bandwith bolometer
US6097031A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1997 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Jul 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/1825
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dual function pixel of an array, having a large fill factor, for detecting visible light and infrared radiation through the same surface area of the pixel. Infrared radiation is absorbed by a conductive oxide layer. This absorbing layer heats up a heat detection layer which thereby indicates the impingement infrared radiation. An infrared reflecting layer made from a conductive oxide reflects infrared light passing through the absorbing layer, back to the absorbing layer. Visible light can pass through all of the layers of the pixel, which are optically transparent, to a visible light detector situated in the substrate of each pixel of the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.