US 2023/0410552 A1 · DETECTION DEVICE

Abstract

A detection device includes a ring-shaped housing wearable on a living body, a first light source provided inside the housing and configured to emit near-infrared light, an optical sensor capable of detecting the near-infrared light, and a control circuit configured to control lighting of the first light source. The control circuit is configured to measure a perfusion index of blood flow based on image data acquired by the optical sensor when being irradiated with the near-infrared light, determine the image data to be a vein image when the perfusion index is equal to or higher than a predetermined value, and determine the image data to be a dermatoglyphic image of a biological surface when the perfusion index is lower than the predetermined value.

Claims8

Dependent claims

A detection device comprising:

a ring-shaped housing wearable on a living body;
a first light source provided inside the housing and configured to emit near-infrared light;
an optical sensor capable of detecting the near-infrared light;
and
a control circuit configured to control lighting of the first light source, wherein
the control circuit is configured to measure a perfusion index of blood flow based on image data acquired by the optical sensor when being irradiated with the near-infrared light, determine the image data to be a vein image when the perfusion index is equal to or higher than a predetermined value, and determine the image data to be a dermatoglyphic image of a biological surface when the perfusion index is lower than the predetermined value.

3 more elements

Dependencies are inferred from the claim text.

Detection device

Life of this patent

Detection device

Life of this patent

Abstract

Claims8