Infrared radiation detector with flanged semiconductor window
US4803360A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Sep 25, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/16152
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared radiation detector comprises a pyroelectric detector element in a hermetically sealed housing. The housing comprises a base and a cover. The cover has an aperture surrounded by an inwardly directed flange. A self-locating window capable of transmitting infrared radiation is fastened to the flange with adhesive to close the aperture. The window comprises a first portion which is adapted to fit within and which is located within the aperture. A second wider portion forms a peripheral shoulder which bears against the cover's flange. The second portion of the window is present outside the cover, giving a wide field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.