Compact home thermometer

Patent metadata

Field	Value
Publication number	US-10184844-B2
Application number	US-201514986301-A
Country	US
Kind code	B2
Filing date	Dec 31, 2015
Priority date	Dec 31, 2015
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A thermometer device for temporal artery area measurement, configured to be used in a skin-touching stationary position, comprising an elongated body and a front portion having an end border arranged on a sensing plane (P), an array of N infrared sensors, with N greater than 8, a sensing region (SR) extending in the sensing plane over an area denoted SRA, at a distance denoted LF from a plane P 2 containing the infrared sensors, the sensing region being encompassed within the border of the front end, an optical lens, interposed between the infrared sensors and the sensing region, to deviate light rays, wherein LF 2 <K×SRA, with K=3.

First claim

The invention claimed is:

1. A thermometer device for temporal artery area measurement, configured to be used in a skin-touching stationary position, comprising;
an elongated body and a front portion having an end border arranged on a sensing plane (P),
an array of at least N infra-red sensors, housed within the body and situated in a plane P 2 , with N greater than 8,
a sensing region (SR) extending in the sensing plane over a sensing region area denoted SRA, at a distance denoted LF from the plane P 2 , the sensing region being encompassed within the end border of the front portion,
at least an optical lens, interposed between the array of infra-red sensors and the sensing region (SR), to deviate light rays such that the sensing region is larger than the array of infra-red sensors,
wherein LF 2 <K×SRA, with K=3.

2. The device of claim 1 , wherein the sensing plane extends over a sensing region area SRA that is at least 2 cm 2 .

3. The device of claim 1 , wherein the sensing region (SR) has a substantially square shape.

4. The device of claim 1 , further comprising an actuation switch arranged on the body and a display, arranged on the body.

5. The device of claim 1 , further comprising a wireless communication interface.

6. The device of claim 1 , further comprising a removable protective cap configured to cover at least the array of infra-red sensors.

7. The device of claim 1 , wherein the body comprises one or more flattened portions.

8. The device of claim 1 , wherein the front portion has a cylindrical shape with an outer diameter D 3 and wherein the thermometer device has an overall length L 3 which is less than 4×D 3 .

9. The device according to claim 1 , wherein the thermometer device has an overall length L 3 which is less than 12 cm.

10. The device of claim 1 , wherein the body is circumscribed in a cylinder C defined by a perimeter defined by the external edge of the end border of the front portion and the axis X.

11. The device of claim 1 , characterized in that the device can be put in a stable manner in an upright stable standing position on the front portion.

12. The device of claim 1 , which comprises a PCB arrangement with a mother board and a daughter board arranged perpendicularly, the array of at least N infra-red sensors being soldered on the daughter board.

13. The device of claim 1 , wherein the infra-red sensors are thermopiles.

14. The device of claim 1 , wherein the front portion has a cylindrical shape with an outer diameter D 3 which is greater than 30 mm and the sensing region (SR) is circumscribed in a diameter D 2 which is greater than 25 mm.

15. The device of claim 14 , wherein 1>D 2 /D 3 >0.9.

Assignees

• Withings

Inventors

• Bedetti Thomas
• Yu Roger
• Wautier Edouard
• Buard Nadine
• Hutchings Cédric
• Bodin Capucine

Classifications

• G01J5/089

  Physics · mapped topic

• G01J5/0806

  Focusing or collimating elements, e.g. lenses or concave mirrors · CPC title

• G01K13/004 Primary

  Physics · mapped topic

• G01J5/025 Primary

  Interfacing a pyrometer to an external device or network; User interface · CPC title

• G01J5/026

  Control of working procedures of a pyrometer, other than calibration; Bandwidth calculation; Gain control · CPC title