There is provided a physiological detection device including a light source, a light detector, a processing unit and a display device. The light source emits light to illuminate a skin surface. The light detector receives the light from the skin surface to output detected signals. The processing unit confirms an attached state according to the detected signals and controls the display device to show an indication signal or a warning message when the attached state is confirmed not good.

The present disclosure provides a vital sign measuring device and method that may measure a heart rate signal of a living body in a motion state. The method comprises detecting two different signals, using an adaptive noise removal algorithm for removing noise from the two signals, and obtaining a more accurate heat rate signal after a certain operation.

Provided is a contactless internal measurement device including an electromagnetic wave irradiation unit that irradiates an electromagnetic wave to a measurement subject, and an electromagnetic wave receiver that detects the electromagnetic wave reflected by the measurement subject. The electromagnetic wave irradiation unit is disposed to reduce a polarization component of the electromagnetic wave detected by the electromagnetic wave receiver, the polarization component being the same as a polarization component of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit.

A device, system and method of non-invasive monitoring of physiological measurements of a subject are disclosed. The method may include: emitting light beams towards skin of the subject, with at least one light source having at least one predetermined polarization, wherein the light beams are emitted at an angle 0°≤α≤90° relative to the normal to the skin surface of the subject; sensing light beams with at least one light sensor positioned at a predetermined distance from the at least one light emitting source; filtering out signals corresponding to detected light beams based on the at least one predetermined polarization of the at least one light source; and determining at least one physiological signal, based on the sensed light beams after filtering. The sensed light beams may pass through at least one of epidermis, dermis, subcutaneous tissue and blood vessel of the subject.

The invention provides a skin detection device using different detecting lights, such as white light or UV light. When white light is used, the user's original skin image is acquired, and further analyzed to determine the user's skin condition, such as pore size or dullness of spots. When UV light is used, it is determined whether there is metal remnant or acne on the user's skin. By using the skin detection device, various user skin conditions can be found to help the following cosmetic consultation.

A method for non-invasive blood glucose monitoring includes the following steps. At least one ray of light is emitted from at least one light source. The light emitted from the light source is leaded into an eyeball and focused on the eyeball through a first beam splitter. The reflected light reflected from the eyeball is transmitted through the first beam splitter to a set of photo detectors. Optical angular information and absorption energy information of the reflected light transmitted to the set of photo detectors are measured. Optical angular difference and absorption energy difference resulting from the light emitted from the light source and the reflected light transmitted to the set of photo detectors are obtained. Glucose information is obtained by analyzing the optical angular difference and the absorption energy difference, and since glucose information has a corresponding relationship with blood glucose information, blood glucose information may be read.

The present disclosure provides a vital sign measuring device and method that may measure a heart rate signal of a living body in a motion state. The method comprises detecting two different signals, using an adaptive noise removal algorithm for removing noise from the two signals, and obtaining a more accurate heat rate signal after a certain operation.

Provided is a contactless internal measurement device including an electromagnetic wave irradiation unit that irradiates an electromagnetic wave to a measurement subject, and an electromagnetic wave receiver that detects the electromagnetic wave reflected by the measurement subject. The electromagnetic wave irradiation unit is disposed to reduce a polarization component of the electromagnetic wave detected by the electromagnetic wave receiver, the polarization component being the same as a polarization component of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit.

A glucose sensor comprising an optical energy source having an emitter with an emission pattern; a first polarizer intersecting the emission pattern; a second polarizer spaced a distance from the first polarizer and intersecting the emission pattern, the second polarizer rotated relative to the first polarizer by a first rotational amount Θ; a first optical detector intersecting the emission pattern; a second optical detector positioned proximal to the second polarizer, the first polarizer and the second polarizer being positioned between the optical energy source and the second optical detector, the second optical detector intersecting the emission pattern; a compensating circuit coupled to the second optical detector; and a subtractor circuit coupled to the compensating circuit and the first optical detector.

An apparatus for non-invasive glucose monitoring includes a light source for emitting at least one ray of light; a first beam splitter, a set of photo detectors for measuring optical rotatory distribution (ORD) information and absorption energy information; a reference component receiving the light from the first beam splitter, and the light reflected by the reference component being transmitted to the set of photo detectors by the first beam splitter, wherein the light emitted from the light source is transmitted to the set of photo detectors by the first beam splitter and the eyeball to form a first optical path, the light emitted from the light source is transmitted to the set of photo detectors by the first beam splitter and the reference component to form a second optical path; and a processing unit receiving and processing the ORD information and the absorption energy information to obtain a glucose information.