A multiple physiological signals sensing chip is provided. The multiple physiological signals sensing chip includes a substrate, a first light-emitting diode, a second light-emitting diode, a sensing array, and a processing unit. The substrate includes a contact surface touched by a finger. The first and second light-emitting diodes respectively emit red light and infrared light to the finger. The sensing array senses the red light or the infrared light reflected or refracted from the finger to obtain first physiological sensing signals according to a first sensing period or senses the red light and the infrared light reflected or refracted from the finger to obtain second physiological sensing signals according to a second sensing period. The first sensing period is shorter than the second sensing period. The processing unit respectively processes the first and second physiological sensing signals to obtain spatial information and energy information corresponding to the finger.

Provided is an imaging device including a light source that radiates light in at least two different wavelength bands and an imaging element that acquires signals individually from the light in the two different wavelength bands. The two different wavelength bands include a first wavelength band from 400 to 580 nm for use in dermatoglyphic pattern authentication, and a second wavelength band of 650 nm or more mainly including near-infrared rays for use in vein authentication.

The present disclosure relates to a door lock having an infrared biometrics information collection device. In certain embodiments, the door lock includes, a door with a door handle for opening the door, an infrared light source, and an infrared biometrics information collection sensor. The infrared light source includes one or more infrared light emitters. The infrared biometrics information collection sensor captures at least one infrared image of biometrics information of the one or more fingers of a target human hand. The fingers are positioned between the infrared light source and the infrared biometrics information collection sensor. The infrared light source irradiates infrared light through one or more fingers to generate infrared images of biometrics information of fingers to be captured by infrared biometrics information collection sensor, infrared images of biometrics information captured are used for user authentications, and the door lock can be unlocked by an authenticated user.

A computing device, such as a wearable device, may include a light source and a photodetector array. The photodetector array may be used to determine a touch event of a user that occurs during a time interval. A subset of the plurality of photodetectors associated with the touch event may provide detection signals at each of a plurality of times within the time interval, which may be aggregated to obtain a time series of aggregated detection signals. Biometric data of the user may be generated, based on the time series of aggregated detection signals.

A fingerprint recognition device including a light emitting layer, an image sensing layer and a micro-lens layer is provided. The image sensing layer has a plurality of pixels. The micro-lens layer is disposed between the light emitting layer and the image sensing layer and has a plurality of micro lenses respectively corresponding to the pixels. A distance between the micro-lens layer and the light emitting layer is less than or equal to 800 um and greater than or equal to h1, where h1=x/(2×tan θ), x is the minimum distance between two micro lenses respectively corresponding to different pixels on a plane where the micro-lens layer is disposed, and θ is an FWHM light receiving angle of each of the micro lenses.

A biometric authentication device with infection preventive function to prevent infection of pathogens such as virus, bacteria and the like is described. The biometric authentication device with infection preventive function includes: an image acquisition unit configured to take an image of a finger of a person to be authenticated; an authentication processing unit configured to performs an authentication process by the use of biometric information contained in the taken image; and a contact prevention unit configured to prevent the finger of the person to be authenticated from coming in contact with the biometric authentication device by leading the finger of the person to be authenticated to a predetermined position in relation to the biometric authentication device by the tactile sensation.

A detection device includes a substrate, a plurality of photodiodes provided on the substrate, a plurality of transistors provided correspondingly to the respective photodiodes, a plurality of gate lines that extend in a first direction, a plurality of signal lines that extend in a second direction intersecting the first direction, a plurality of lower electrodes that are provided between the transistors and the photodiodes in a direction orthogonal to the substrate, and are provided correspondingly to the respective photodiodes, an upper electrode provided so as to extend across the photodiodes, and a reflective layer provided between the substrate and each of the photodiodes in the direction orthogonal to the substrate. Each of the lower electrodes has a smaller area than an area defined by the gate lines and the signal lines, and the reflective layer is provided between the lower electrodes adjacent to each other in a plan view.

According to one embodiment, a biometric authentication device includes a resin substrate, an optical sensor and an illumination device. The resin substrate has flexibility. The optical sensor is disposed on the resin substrate. The illumination device is disposed on the resin substrate. The optical sensor and the illumination device are disposed on the resin substrate so as to face each other with a detection target interposed therebetween when the biometric authentication device is mounted on the detection target. The optical sensor detects light emitted from the illumination device and transmitted through the detection target.

A fingerprint recognition device including a light emitting layer, an image sensing layer and a micro-lens layer is provided. The image sensing layer has a plurality of pixels. The micro-lens layer is disposed between the light emitting layer and the image sensing layer and has a plurality of micro lenses respectively corresponding to the pixels. A distance between the micro-lens layer and the light emitting layer is less than or equal to 800 um and greater than or equal to h1, where h1=(x/2×tan θ), x is the minimum distance between two micro lenses respectively corresponding to different pixels on a plane where the micro-lens layer is disposed, and θ is an FWHM light receiving angle of each of the micro lenses.

A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.