The present invention relates to a method for measuring a physiological parameter of a subject by means of an optical measurement device, said method comprising the steps of: setting into place the optical measurement device (1, 1bis) facing a skin surface (10) of the subject, so that the object focal spot of the optical objective is positioned at a predetermined skin depth, receiving by the photosensitive receiver (4) light rays from the first object focal spot, at the predetermined skin depth, analyzing the light rays received by the photosensitive receiver (4), and comparing the results of the analysis with known data, so as to determine the physiological parameter of the subject.

A physiological monitoring device controls an optical signal acquisition system within a number of discrete operating states, each providing values for controllable parameters such as illumination intensity for a light source and the gain for an optical detector. Using this technique, a small number of operating states may be defined, such as operating states that are known to work well within expected use scenarios. This approach advantageously facilitates optimal or near optimal operation across a range of most likely use cases while avoiding complex or continuous optimization problems. The list of operating states may further be prioritized so that a best operating state can be selected based on, e.g., signal quality or environmental conditions.

The present disclosure relates to a medical microscope field. A stereo microscope connected to an optical coherence tomography (OCT) unit for forming a tomographic image of a target object includes an objective lens unit including a plurality of lenses each having an aperture of a predetermined size, a pair of first magnification lens units each including a plurality of lenses having a pair of magnification lens apertures positioned within the aperture of the objective lens unit, a second magnification lens unit including a plurality of lenses having an OCT aperture disposed separately from the pair of magnification lens aperture within the aperture of the objective lens unit, and a light delivery unit configured to receive light from the OCT unit and deliver the light to the second magnification lens unit and configured to deliver light received from the second magnification lens unit to the OCT unit.

A biological signal acquirer is attached to a subject and acquires a biological signal of the subject. A transmitter carried by the subject transmits the biological signal. A first communication port and a first camera are installed in a first location and connectable to a network. A second communication port and a second camera are installed in a second location and connectable to the network. A biological information acquiring device is connectable to the network and provided with a switcher. The switcher acquires, when communication establishment between the transmitter and the first communication port is detected, the biological signal through the first communication port as well as a first image taken by the first camera, and acquires, when communication establishment between the transmitter and the second communication port is detected, the biological signal through the second communication port as well as a second image taken by the second camera.

An ultra high-resolution near infrared brain imager system includes a modular cap housing closely spaced multiple vertical-cavity surface-emitting lasersingle-photon avalanche photodiode array (VCSEL-SPAD) modules, each one of the VCSEL-SPAD modules including a linear VCSEL array and a SPAD detector.

A light pulse is emitted from a light source for illuminating a medium. Energy level data of the light pulse is measured before the light pulse enters the medium. An image sensor captures an image that includes an interference pattern generated by an exit signal of the light pulse exiting the medium interfering with a reference wavefront. Normalized intensity data is generated by normalizing intensity data exit signal data by the energy level data.

Optical spectroscopic devices, apparatus, systems and methods useable for physiological monitoring from intraosseous, subosseous, epidural, subdural, intraventricular, intramuscular, sub-adipose and other subcutaneous locations.

A method of optimizing sleep of a subject using smart-home devices may include operating a smart-home system that is configured to operate in a normal mode and a sleep mode. The method may also include determining that the smart-home system should transition into the sleep mode. The smart-home devices may use a set of default parameters when operating in the sleep mode. The method may additionally include monitoring, while in the sleep mode, a sleep cycle of the subject using the smart-home devices. The method may further include detecting behavior of the subject that indicates that the sleep cycle of the subject is being interrupted or about to be interrupted, determining an environmental control that corresponds with the behavior of the subject, and adjusting the environmental control using the smart-home devices to prevent or stop the sleep cycle of the subject from being interrupted.

A glucose sensor comprising one or more optical energy source is disclosed. In various embodiments one or more beam splitter/combiner is implemented to receive optical energy from the one or more optical energy source. One or more beam splitter/combiner provides provide optical energy to detector(s) to determine glucose in a body tissue.

An apparatus and method of measuring oxygenation of tissue in a non-invasive manner are provided. The apparatus comprises a light source configured to emit a light pattern to be projected onto the tissue, in which the light pattern comprises superimposed patterns having different patterns. A detector captures an image of a reflected light pattern which is reflected from the tissue as a result of the projected light pattern. A processor coupled to the detector can be configured to perform a transform on the image of the reflected light pattern and determine oxygenation of each of a plurality of layers of the tissue in response to the transform of the image. Polarimetry can be used in determining a change in polarization angle of light beam. Tissue oxygenation can be determined at a plurality of layers from one snapshot, for example oxygenation of retinal layers.