An earphone comprises a housing defining an audio opening; a speaker driver positioned within the housing; and a body temperature measuring module. The audio opening is configured to be positioned within or facing toward an ear canal of a wearer in a wearing position of the earphone. The speaker driver comprises a diaphragm facing toward the audio opening, defining an audio channel between the diaphragm and the opening. The body temperature measuring module is positioned within the audio channel, the and comprises a reflector, and a temperature sensor configured to receive an infrared light transmitted through the audio opening and reflected by the reflector.
1. An earphone, comprising:
a housing defining an audio opening, the audio opening configured to be positioned within or facing toward an ear canal of a wearer in a wearing position of the earphone;
a speaker driver positioned within the housing, the speaker driver comprising a diaphragm facing toward the audio opening, defining an audio channel between the diaphragm and the opening; and
a body temperature measuring module positioned within the audio channel, the body temperature measuring module comprising a reflector and a temperature sensor, the temperature sensor configured to receive an infrared light transmitted through the audio opening and reflected by the reflector.
2. The earphone according to claim 1 , wherein the body temperature measuring module further comprises an optical filter at or near the audio opening.
3. The earphone according to claim 2 , wherein the optical filter is configured to allow IR light of a selected wavelength to pass through while substantially absorbing light of other wavelengths.
4. The earphone according to claim 1 , wherein the reflector comprises a shaped inner surface of the housing and a coating applied to the shaped inner surface.
5. The earphone according to claim 4 , wherein the coating is a silver coating.
6. The earphone according to claim 4 , wherein the shaped inner surface and the coating is of a curved surface and is configured to reflect and converge the infrared light onto the temperature sensor.
7. The earphone according to claim 1 , wherein the temperature sensor is an FIR sensor.
8. The earphone according to claim 1 , wherein the temperature sensor is arranged in a horizontal orientation in which the photo surface of the temperature sensor is substantially parallel to an axis of the audio channel.
9. The earphone according to claim 1 , wherein the temperature sensor is mounted on a flexible PCB.
10. The earphone according to claim 1 , wherein the temperature sensor is a single chip FIR sensor.
11. The earphone according to claim 1 , wherein the earphone is an in-ear earphone or TWS earphone.
12. An earphone, comprising:
a housing defining an audio opening, the audio opening configured to be positioned within or facing toward an ear canal of a wearer in a wearing position of the earphone;
a speaker driver positioned within the housing, the speaker driver comprising a diaphragm facing toward the audio opening, defining an audio channel between the diaphragm and the opening; and
positioned within the audio channel, at least the following: a reflector and a temperature sensor, the temperature sensor positioned to receive an infrared light transmitted through the audio opening and reflected by the reflector.
13. The earphone according to claim 12 , wherein further positioned within the audio channel is an optical filter at or near the audio opening.
14. The earphone according to claim 13 , wherein the optical filter is structured to allow IR light of a selected wavelength to pass through while substantially absorbing light of other wavelengths.
15. The earphone according to claim 12 , wherein the reflector comprises a shaped inner surface of the housing and a coating applied to the shaped inner surface.
16. The earphone according to claim 15 , wherein the coating is a silver coating.
17. The earphone according to claim 15 , wherein the shaped inner surface and the coating is of a curved surface and is configured to reflect and converge the infrared light onto the temperature sensor.
18. The earphone according to claim 12 , wherein the temperature sensor is an FIR sensor.
19. The earphone according to claim 12 , wherein the temperature sensor is arranged in a horizontal orientation in which the photo surface of the temperature sensor is substantially parallel to an axis of the audio channel.
20. The earphone according to claim 12 , wherein the temperature sensor is mounted on a flexible PCB.