Biometric information acquisition device, biometric information acquisition method and wearable device

摘要

PROBLEM TO BE SOLVED: To further suppress the generation of stray light even when the device is further miniaturized and thinned. A biological information acquisition device according to the present disclosure includes an image sensor in which biological information, which is image information obtained by irradiating a part of a living body with light having a predetermined wavelength, is imaged, and the image sensor. A lens array that is located between a part of the living body and has a plurality of single lenses arranged in an array to form an image of the biological information on the image sensor, and the image sensor and the lens array. A light-shielding body that is located between the lenses and forms a light-shielding body for forming an image of the biological information transmitted through the single lens on the image sensor. It is formed so that the opening diameter is not constant along the line direction. [Selection diagram] FIG. 1A