An in-ear hearing device includes a light source configured to emit light, a photodetector configured to detect the emitted light after the emitted light passes through tissue of a subject, a spout; an audio receiver configured to deliver a sound to the subject through the spout, and a dome configured to conform to a shape of a subject's ear canal when the hearing device is in the ear canal. An output of the light source and an input of the photodetector are separated by the dome, and the dome absorbs and/or reflects at least part of the emitted light. The photodetector may be a forward biased photodiode. The sensor device can be realized with power levels, circuitry components, and in package sizes, of hearing devices.

A sensor cover according to embodiments of the disclosure is capable of being used with a non-invasive physiological sensor, such as a pulse oximetry sensor. Certain embodiments of the sensor cover reduce or eliminate false readings from the sensor when the sensor is not in use, for example, by blocking a light detecting component of a pulse oximeter sensor when the pulse oximeter sensor is active but not in use. Further, embodiments of the sensor cover can prevent damage to the sensor. Additionally, embodiments of the sensor cover prevent contamination of the sensor.

An electronic device is provided by the present disclosure. The electronic device includes a patterned substrate having a plurality of main portions and a plurality of connecting portions, wherein at least one of the plurality of connecting portions connects two adjacent ones of the plurality of main portions, a plurality of biosensors disposed corresponding to the plurality of main portions, a conductive line disposed on the at least one of the plurality of connecting portions and electrically connecting two adjacent ones of the plurality of biosensors, and an insulating layer disposed on the plurality of biosensors and the conductive line.

Disclosed are devices and methods for non-invasively measuring arterial stiffness using pulse wave analysis of photoplethysmogram data. In some implementations, wearable biometric monitoring devices provided herein for measuring arterial stiffness have the ability to automatically and intelligently obtain PPG data under suitable conditions while the user is engaged in activities or exercises. In some implementations, wearable biometric monitoring devices are provided herein with the ability to remove PPG data variance caused by factors unrelated to arterial stiffness. In some implementations, wearable biometric monitoring devices have the ability to perform PWA while accounting for the user's activities, conditions, or status.

A biological information measurement apparatus including: a light emitting unit that irradiates a living body with light; and a light receiving unit that receives light scattered at a plurality of measurement sites in the living body, in which the biological information measurement apparatus includes a mechanism in which the light scattered at the plurality of measurement sites is individually detected by a plurality of the light receiving units or the same light receiving unit. Also provided is a biological information measurement system including: a light emitting device that irradiates a living body with light; and a light receiving device that receives light scattered at a plurality of measurement sites in the living body, in which the biological information measurement system includes a mechanism in which the light scattered at the plurality of measurement sites is individually detected by a plurality of light receiving units or the same light receiving unit.

An image acquisition device includes an imager including a light receiver, a light shield, a light condenser, and a light emitter. The light shield includes a light transmitting substrate, a light shielding layer, and an opening in the light shielding layer. A light transmitting layer having a refractive index smaller than that of the substrate is between the light condenser and the light shield. When a diameter of a light receiving surface of the light reception element is d, a diameter of the opening is a, a pitch of the light reception elements is p, a refractive index of the light transmitting layer is n1, a refractive index of the substrate is n2, and a distance between the light reception element and the light shielding layer is h, Arctan((p-a/2-d/2)/h)≧Arcsin(n1/n2).

A method for obtaining care information, a method for sharing care information, and an electronic apparatus therefor are provided. The method for obtaining care information includes following steps: obtaining face data of a current user from an image capturing equipment and obtaining initial skin information of the face data. classifying the current user into one of a plurality of groups according to the initial skin information by a cloud database; setting a predetermined time period and a skin-condition goal by the electronic apparatus; and obtaining a skin-achievement history of an another user in the group containing the current user according to the initial skin information, the predetermined time period and the skin-condition goal by the electronic apparatus. The skin-achievement history is care information regarding the skin-condition goal achieved by the another user under circumstances of the approximate initial skin information and the approximate predetermined time period.

This relates to systems and methods for determining one or more of a user's physiological signals. The one or more of the user's physiological signals can be determined by measuring pulsatile blood volume changes. Motion artifacts included in the signals can be canceled or reduced by measuring non-pulsatile blood volume changes and adjusting the signal to account for the non-pulsatile blood information. Non-pulsatile blood volume changes can be measured using at least one set of light emitter-light sensor. The light emitter can be located in close proximity (e.g., less than or equal to 1 mm away) to the light sensor, thereby limiting light emitted by the light emitter to blood volume without interacting with one or more blood vessels and/or arterioles. In some examples, the systems can further include an accelerometer configured to measure the user's acceleration, and the acceleration signal can be additionally be used for compensating for motion artifacts.

The present invention relates to a watch type terminal, including a main body, and a sensing unit disposed on one surface of the main body and configured to acquire a biometric signal, wherein the sensing unit includes at least one green light emitting device provided on one surface of the main body and configured to output green light, at least one yellow light emitting device disposed with being spaced apart from the at least one green light emitting device, and configured to output yellow light with a different skin transmittance from that of the green light, a light receiving sensor surrounded by the green light emitting device and the yellow light emitting device, and configured to receive reflected green light and/or yellow light, and a controller configured to generate a biometric signal using light incident on the light receiving sensor.

A non-invasive detection method, device, system and wearable apparatus for tissue element are provided. The method includes: emitting incident light of multiple predetermined wavelengths to a detected site, respectively; for each predetermined wavelength, obtaining light intensity values emitted from a surface of the detected site based on multiple photosensitive surfaces, wherein multiple photosensitive surfaces are at predetermined distances from a center of the incident light; and determining a concentration of the tissue element to be detected according to light intensity values in multiple predetermined wavelengths.