Infrared sensor module and forehead thermometer
US11808631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Apr 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/0879
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared sensor module and a forehead thermometer are provided. The infrared sensor module includes a light guide structure and an infrared sensor element. An annular hollow space is formed inside the light guide structure and passes therethrough. A first and second opening is formed on two opposite sides of the light guide structure, respectively. A diameter of the first opening is greater than a diameter of the second opening. The annular hollow space includes a matte and reflective area, the matte area has serration portions, and each of the serration portions extends from the first opening to the second opening and is arranged parallel to each other. The reflective area is formed between the second opening and the matte area. The infrared sensor element is disposed at the second opening. The forehead thermometer includes a casing, a circuit board, the infrared sensor module, and an operating switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.