The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.

The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.

A sensing system includes laser diodes with Bragg reflectors generating light having an initial light intensity and one or more near-infrared optical wavelengths. The laser diodes are modulated with a pulsed output with 0.5 to 2 nanosecond pulse duration. A beam splitter receives light from the laser diodes, splits the light into a received sample arm light directed to an object and a received reference arm light. A detection system includes a second lens and spectral filters in front of a photodiode array. The photodiode array is coupled to CMOS transistors and receives at least a portion of the received reference arm light and generates a reference detector signal. The detection system is synchronized with the laser diodes. A time-of-flight measurement is based on a comparison of the sample detector signal and the reference detector signal and measures a temporal distribution of photons in the received reflected sample arm light.

The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.

A pre-fabricated, on-demand interface provides optical coupling between disposable and reusable portions of a fiber-optic probe. The interface uses a pre-cured, compressible optically-transmissive gel in a cavity of the disposable portion, which can be a disposable insertion tip of the fiber optic probe. The disposable portion includes an elongated housing, or sheath, and the cavity is located within and proximal of a distal end of the elongated housing. A proximal end of an optical assembly of the disposable portion is located within the cavity and contacts the gel. A first coupling, provided at a proximal end of the elongated housing, detachably couples to a mating, second coupling of the probe reusable portion. When the disposable and reusable portions are coupled together, the gel is compressed between the proximal end of the optical assembly of the disposable portion and a distal optical member of an optical assembly of the reusable portion.

The disclosure discloses a wearable computing device (WCD) that would selectively and automatically activate a transceiver of the WCD for data transmission based on sensor data obtained from a sensor module of the \VCD. In some example, the sensor module may convert the physical movements of the WCD into sensor data. Then, a processor module of the WCD compares the sensor data to a predetermined pattern pre-stored in the memory. If the sensor data matches the predetermined pattern, the processor module activates the transceiver to receive/transmit data packets. If the sensor data does not match the predetermined pattern, the process goes back to the beginning, where the processor module monitors the movement of the WCD through the sensors.

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.

A smart ring includes a curved housing having a U-shape interior storing components including: a curved battery approximately conforming to the curved housing, a semi-flexible PCB approximately conforming to the curved housing and having mounted thereon: a motion sensor for generating motion data from physical perturbations of the smart ring, a memory for storing executable instructions, a transceiver for sending data to a client computer, a temperature sensor, and a processor for receiving motion data and performing executable instructions in response thereto, and a potting material disposed in the interior, forming an interior wall of the smart ring, wherein the potting material encapsulates the components and is substantially transparent to visible light, infrared light, and/or ultraviolet light.

A system for non-invasively measuring an analyte in a vehicle driver and controlling a vehicle based on a measurement of the analyte. At least one solid-state light source is configured to emit different wavelengths of light. A sample device is configured to introduce the light emitted by the at least one solid-state light source into tissue of the vehicle driver. One or more optical detectors are configured to detect a portion of the light that is not absorbed by the tissue of the vehicle driver. A controller is configured to calculate a measurement of the analyte in the tissue of the vehicle driver based on the light detected by the one or more optical detectors, determine whether the measurement of the analyte in the tissue of the vehicle driver exceeds a pre-determined value, and provide a signal to a device configured to control the vehicle.

Exemplary apparatus, device, system and method can be provided for examining a sample, which can comprising and/or utilize an imaging device for obtaining an overview image of the sample. A measuring instrument can also be used for locally interrogating at least one property of the sample with a laser beam which emerges from an aperture. Additionally, a tracking arrangement/system/device can be utilized for determining the location on the sample which is currently being interrogated with the laser beam. Additionally, memory or any other electronic storage device can be utilized, in which the property interrogated with the laser beam can be associated with the determined location on the sample. For example, the tracking arrangement/system/device can be designed and/or configured to determine the location at which the laser beam impacts or strikes the sample by evaluating the laser spot produced thereby from the overview image, and/or to determine this location by measuring the position and orientation of the aperture.