There is disclosed a door handle having a vein authentication function including a housing provided in a door; a sensor provided in the housing for sensing a user's hand touching the housing or located in a preset region; a controller receiving a measured value from the sensor part; and an authentication part operating based on a control signal of the controller, photographing the user's hand and transmitting the photograph of the user's hand to the controller, wherein the authentication part has a photographing angle that is variable based on a position of the user's hand.

A biometric information authentication device includes an authentication unit to change an authentication threshold value used for authentication to increase difficulty of authentication when authentication of biometric information by checking against registered biometric information is unsuccessful a predetermined number of times.

An authentication method implemented by a computer, the method including: accepting biometric information to be authenticated detected by a first sensor; specifying one person included in one or more persons, based on a movement of each of the one or more persons, in a case where the one or more persons are detected by a second sensor at the time of detecting the biometric information to be authenticated; selecting registered biometric information associated with registered face image information that is similar to face image information of the one person, from among registered biometric information associated with each of a plurality of pieces of registered face image information; and authenticating the biometric information to be authenticated, based on a comparison result of comparing the biometric information to be authenticated with the selected registered biometric information.

An authentication method implemented by a computer, the method including: accepting biometric information to be authenticated detected by a first sensor; specifying one person included in one or more persons, based on a movement of each of the one or more persons, in a case where the one or more persons are detected by a second sensor at the time of detecting the biometric information to be authenticated; selecting registered biometric information associated with registered face image information that is similar to face image information of the one person, from among registered biometric information associated with each of a plurality of pieces of registered face image information; and authenticating the biometric information to be authenticated, based on a comparison result of comparing the biometric information to be authenticated with the selected registered biometric information.

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.

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.

An authentication device includes: a wearing position determination unit that determines a wearing position, the wearing position being a position at which a wearable article comprising a sensor is being worn on a body; and an authentication unit that performs authentication by using biometric information of the body, the biometric information being detected by the sensor at the wearing position.

Coherent light (e.g., laser light) is emitted into a cranium through an optical fiber. A tissue sample (e.g., red blood cells, blood vessels, brain tissue) within the cranium diffuses the coherent light. Different tissue sample motion quantities generate different coherent light interference patterns. An image of a coherent light interference pattern is captured with an image sensor coupled to an optical element. The speckle contrast of the image quantifies coherent light interference pattern. A waveform of sequentially captured speckle contrast values over time has characteristics that reflect intracranial blood flow health. If waveform characteristics indicate poor or questionable intracranial blood flow heath, a notification message is displayed, played, or otherwise transmitted.

A palm vein identification apparatus includes a base to support a first sensor; the first sensor mounted on the base via a multi-axis gimbal, the multi-axis gimbal to provide movement of the sensor such that the sensor can capture one or more images from a plurality of angles; a position control in communication with the first sensor and to correct movement of the first sensor; and a secondary sensor mounted on the base, the secondary sensor to capture an environment around the palm vein identification apparatus to detect a palm; the first sensor is positioned based on information collected from the secondary sensor.