Heart rate detection module and electronic device
AssigneeHuawei Technologies Co., Ltd.
InventorsHangfei Li, Xiaosong Wei, Wenqiang Xia, Hao Zhang
Life of this patent
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Abstract
A heart detection module includes a light emitting component, a light receiving component, and a Fresnel film, where the light emitting component and the light receiving component are disposed in an optical isolation manner, the Fresnel film is located on a same side of the light emitting component and the light receiving component, and a light outlet surface of the light emitting component faces the Fresnel film. The Fresnel film has a light absorption medium, and in a direction perpendicular to the Fresnel film, the light absorption medium is located between the light emitting component and the light receiving component.
Claims20
A heart rate detection module comprising:
- a light emitting component comprising a light outlet surface;
- a light receiving component, wherein the light emitting component and the light receiving component are optically isolated;
- and
- a Fresnel film comprising an accommodation cavity that passes through the Fresnel film and a light absorption medium disposed in the accommodation cavity,
- wherein the light emitting component and the light receiving component are disposed on a same side of the Fresnel film, and wherein the Fresnel film faces the light outlet surface, and
- wherein the light absorption medium is disposed between the light emitting component and the light receiving component in a direction perpendicular to the Fresnel film.
An electronic device comprising:
- a heart rate detection module comprising:
- a light emitting component comprising a light outlet surface;
- a light receiving component, wherein the light emitting component and the light receiving component are optically isolated;
- and
- a Fresnel film comprising an accommodation cavity that passes through the Fresnel film and a light absorption medium disposed in the accommodation cavity,
- wherein the light emitting component and the light receiving component are disposed on a same side of the Fresnel film, and wherein the Fresnel film faces the light outlet, and
- wherein the light absorption medium is disposed between the light emitting component and the light receiving component in a direction perpendicular to the Fresnel film.
Dependencies are inferred from the claim text.