Abstract: An electronic device is provided.

Abstract: An image capturing apparatus including a cover plate, a first lens element and a second lens element arranged sequentially from an object side to an image side along an optical axis is provided. The number of lens elements in the image capturing apparatus is only two. The image capturing apparatus satisfies: 0.2<f/imgH<0.9, 2.9<N1+N2<3.7, and 2<(OTL?d)/imgH<8, wherein f is an effective focal length of the image capturing apparatus, imgH is a maximum imaging height of the image capturing apparatus, N1 is a refractive index of the first lens element, N2 is a refractive index of the second lens element, OTL is a distance from a tested object to an imaging plane on the optical axis, and d is a thickness of the cover plate.

Abstract: A recognition device, a fingerprint recognition device and a fingerprint recognition apparatus are provided, and the fingerprint recognition device includes: a detection substrate provided with fingerprint detector units; a light barrier which is provided at a side, provided with the fingerprint detector units, of the detection substrate, and provided with light through holes corresponding to the fingerprint detector units; a cover plate which is provided at a side, facing away from the detection substrate, of the light barrier, and includes a light exit surface facing the light barrier and a touch surface facing away from the light barrier; and a light source for emitting light to the cover plate. Each fingerprint detector unit is configured to output an electrical signal according to an intensity of light incident on the fingerprint detector unit, after the light passes through the light through hole corresponding to the fingerprint detector unit.

Abstract: A non-contact friction ridge capture device is described. The device comprises a device housing, the device housing including an electronics compartment and an illumination shield, with an opening between the electronics compartment and the illumination shield into which a user can insert the user's hand. The device further comprising a camera disposed in the electronics compartment for capturing an image of at least one friction ridge surface on a user's hand. The device further comprises a light source disposed in the electronics compartment, the light source emitting light in the direction of the illumination shield, wherein the peak wavelength of emitted light is in the range of 440 to 570 nanometers (nm). The user's hand is not required to contact the device when the camera captures the image of at least one friction ridge surface on a user's hand.

Abstract: A fingerprint sensor integrated display using a holographic optical element and a recording and reconstruction method of the holographic optical element are disclosed. The fingerprint sensor integrated display includes a display panel on which an input image is displayed, a transparent substrate disposed on the display panel, and a light entering element configured to irradiate light from a light source onto the transparent substrate. A particular type of visual information is reconstructed through a holographic element at a location of the light entering element.

Abstract: Disclosed herein is a display device capable of recognizing a fine fingerprint without a complicated construction such as a bulky optical device. The display device comprises a display panel having a display area and a non-display area outside the display area; a light source disposed below the non-display area of the display panel to irradiate the display panel with light; a directional light unit disposed on an upper portion of the display panel, refracting the light supplied from the light source at a first angle to travel from the non-display area to the display area in total internal reflection, reflecting some of the totally internally reflected light at a second angle, and then supplying a light reflected by an object having biometric information to the display panel; and an optical sensor disposed below the display panel and receiving the light exited from the directional light unit.

Abstract: Disclosed is a display device including a display panel configured to be situated under a transparent substrate and display an image on a display area toward the transparent substrate, a fingerprint sensor under the display panel to detect a fingerprint contacting the transparent substrate, and a drive integrated circuit (drive IC) configured to drive the display panel.

Abstract: An image capturing apparatus includes a light guide plate, a first light transmissive layer, a second light transmissive layer, a third light transmissive layer, a light source and an image capturing device. The light guide plate has a first surface and a second surface opposite to the first surface. The first light transmissive layer is disposed on the first surface. The second light transmissive layer is disposed on the second surface, wherein the second light transmissive layer is overlapped with a light transfer region of the light guide plate and not overlapped with a light penetration region of the light guide plate. The third light transmissive layer is disposed on the second surface and overlapped with the light transfer region and the light penetration region. Refractive indices of the third light transmissive layer and the light guide plate are higher than those of the first and second light transmissive layers.

Abstract: Systems and methods for realizing practical applications of high speed digital image correlation (DIC) for dynamic quantities of interest are provided. In particular, a series of images are captured for a component of interest in which a non-filtered sensor and an analog low-pass filtered sensor are included within the region of interest for the series of images. Displacement signals are obtained for the component of interest, the non-filtered sensor, and the analog low-pass filtered sensor by applying digital image correlation processing to the series of images, which may also be wavelet filtered. Dynamic quantities of interest may be generated and derived from the displacement signals after having been wavelet filtered. Such dynamic quantities of interest based on the wavelet filtered DIC-derived displacement signal may be compared to sensor-derived dynamic quantities of interest to determine if aliasing is or is likely to be present.

Abstract: Devices, systems, methods, and kits are disclosed for amplifying small quantities of nucleic acid and identifying the nucleic acid sequences of the amplified nucleic acid products.

Abstract: A method for modifying the wettability of a surface of an object can comprise forming on the surface of the object one or more arrays of nanofibers, wherein the one or more arrays of nanofibers includes nanofibers spaced along an X-axis and a Y-axis at the same or different intervals along either axis, the one or more arrays of nanofibers is integral with the object, and the nanofibers all have a base portion that is substantially normal to the surface. The intervals, diameter, and length of the nanofibers of the one or more arrays of nanofibers are selected so that the wettability of the surface for one or more predetermined liquids is increased or decreased relative to the wettability of the surface in the absence of the array of nanofibers.

Abstract: A liquid crystal display and a backlight module thereof are provided. The backlight module includes a backlight source and a light guide plate. The backlight source is disposed at a side surface of the light guide plate. The light guide plate has an accommodation section for accommodating a functional module. The backlight module includes a compensation light source that is disposed on the light guide plate. The accommodation section is located between the backlight source and the compensation light source. The backlight module includes a compensation light source, and the backlight source and the compensation light source are located at two opposite sides of the accommodation section. The compensation light source may compensate for the illumination light in the light guide plate blocked by the functional module, so as to solve the non-uniform display problem of blocking the illumination light from the backlight source by the functional module.

Abstract: The invention relates to the field of biometric identification. The technical result consists in decreasing the overall dimensions and increasing the reliability of a system for registering papillary ridge patterns, while providing for reduced cost, high image quality, rapid operating speed and reduced energy consumption. The present system comprises a light source, an element which defines the position of a reading surface, an optical system, and a multi-element image receiver, wherein the reading surface is optically linked to the image receiver by rays passing through a guiding optical element, comprising a refractive surface and a reflective surface, by means of consecutive refraction on the refractive surface, reflection on the reflective surface and total internal reflection on the refractive surface.

Abstract: A wearable device that is mounted with a fingerprint recognition sensor is provided. The wearable device includes a housing including a first, a second face facing, and a third face facing, a support structure disposed between the first and second faces, a display disposed on the first face to be exposed, and including a window having a first flange and a second flange disposed to be opposite the first face, and a display module coupled to the window to face the second direction, the display being disposed on one face of the support structure, a printed circuit board disposed on another face of the support structure, at least one light emitter mounted adjacent to the first flange to emit light to a first region of the window, and at least one light receptor mounted adjacent to the second flange to receive light reflected from the first region.

Abstract: Methods are provided for authenticating a value article that includes a luminescent material. An exciting light source, an optical filter, a photodetector, a signal manipulation circuit, and an amplifier are provided. The luminescent material is exposed to light produced by the exciting light source. Radiation including light from the exciting light source and emitted radiation from the luminescent material is filtered using the optical filter to produce filtered radiation. The filtered radiation is detected using the photodetector to produce a detected radiation signal. The detected radiation signal is electronically manipulated using the signal manipulation circuit to reduce an effect of light from the exciting light source on an authentication determination based upon the detected radiation signal. The detected radiation signal is amplified with the amplifier after electronic manipulation to produce an amplified electronic signal.

Abstract: The present invention provides a fingerprint capturing device comprising a capacitor sensing module, for receiving a finger press to generate a reference signal according to the finger press, wherein the capacitor sensing module comprises a capturing platform and a sensing electrode; an image sensing module, connected to the capacitor sensing module, for activating a lighting component to emit a light beam after the capacitor sensing module generates the reference signal, so as to generate a fingerprint image of the finger. The hybrid fingerprint capturing device provided by the present invention can effectively reduce power consumption of fingerprint recognition device when capturing fingerprint, and have an advantage of improving more comfortable usage scenarios to users.

Abstract: The present invention relates to a living body detection method, a living body detection system and a computer program product, which can realize living human body detection. The living body detection method includes: using a laser light source to irradiate the face of an object to be detected; capturing an image of the face of the object to be detected that is irradiated by the laser light source; calculating a light spot area of the image of the face of the object to be detected; and comparing the light spot area with a first predetermined area threshold value, and if the light spot area is greater than the first predetermined area threshold value, determining that the object to be detected is a living body.

Abstract: Continuous measurement of surfaces larger than a sensor is facilitated by the use of a sensor matrix of a clear elastomer and a reflective surface that scrolls, rolls, or otherwise moves over a target surface. A variety of web materials, camera configurations, and handling systems are described to achieve continuous three-dimensional measurement in this context.

Abstract: A shearing interferometer includes first and second shearing plates disposed opposite to each other. The first shearing plate includes a first front surface and a first back surface, and splits an input beam input to the first front surface into first and second beams reflected at the first front and back surfaces, respectively. The second shearing plate includes a second front surface and a second back surface. The second shearing plate splits the first beam into third and fourth beams reflected at the second front and back surfaces, respectively, and splits the second beam into fifth and sixth beams reflected at the second front and back surfaces, respectively. Each of the first and second shearing plates has a thickness which limits a phase delay between the fourth beam and the fifth beam to a degree determined to allow interference to occur between the fourth beam and the fifth beam.

Abstract: An optical detecting device capable of increasing signal-to-noise ratio (SNR) and economizing power consumption is installed on a wearable device. The optical detecting device includes a base, an optical detecting component and a light emitting module. The optical detecting component is disposed on the base and has a detecting surface normal vector. The light emitting module is disposed on the base and outputs a sampling signal to project onto an external object, and the optical detecting component can receive the sampling signal reflected from the external object. The light emitting module is slanted toward the optical detecting component, and an optical axis of spatial distribution of the sampling signal and the detecting surface normal vector are crossed to form a deviated angle.

Abstract: A device for checking a windshield wiper blade of a motor vehicle, includes an at least partially transparent body having a contact side which is designed for contacting with the windshield wiper blade to be checked; a light-incidence side which is designed to allow light to enter into the body; and a light-exit side. The at least partially transparent body is designed in such a way that light entering the body through the light-incidence side is reflected at least partially at the contact side, and reflected light exits the body through the light-exit side.

Abstract: A lighting apparatus includes an optical member with a diffractive optical element. The optical member is directly fixed on a substrate with plural lighting chips. When the lighting apparatus is applied to a laser diode module, the height and volume of the overall laser diode module are reduced. Consequently, the laser diode module is suitably applied to a small-size device.

Abstract: A touch screen configured for optical touch sensing and user identification using organic light emitting diodes (OLEDs) is disclosed. In some examples, one or more OLEDs can be used to display one or more images on the device, can be configured to emit light for optical touch sensing, and/or can be configured to detect a reflection of the emitted light. The touch screen can include a spatial filter configured to focus light emitted from the OLEDs and/or reflected light detected by the OLEDs for improved optical touch sensing. Using optical touch sensors, the touch screen can be capable of discerning between water and an object (e.g., finger) and/or noise (e.g., ambient light) and an object. The touch screen can also be capable of identifying (e.g., authenticating) a user using the active area of the device.

Abstract: A prism member of an authentication apparatus includes a living body contact surface configured to be in contact with the living body, and an imaging surface opposed to the living body contact surface and formed at a position generally parallel therewith. The prism member includes a reflection surface in contact with the living body contact surface and the imaging surface, to totally reflect light reflected from the former surface toward the latter surface. The reflection surface is at angle such that (i) light through the living body contact surface into the prism member does not reach to the reflection surface, and (ii) light from an inside of the prism member is totally reflected at the living body contact surface in an optical path running from the imaging surface and reaching the living body contact surface by way of the reflection surface. A first imaging unit captures a living-body reflected light.

Abstract: A prism member of an authentication apparatus includes a living body contact surface in contact with a visible light-radiated living body, and an imaging surface opposed to the living body contact surface and formed at a position in generally parallel therewith. The prism member includes a reflection surface in contact with the living body contact surface and the imaging surface, and to totally reflect light reflected off from the living body contact surface toward the imaging surface. The reflection surface is at an angle such that light from an inside of the prism member is totally reflected at the living body contact surface in an optical path running from the imaging surface and reaching the living body contact surface via the reflection surface. A first imaging unit captures an image including at least a part of said body contact surface and at least a part of the reflection surface.

Abstract: Disclosed herein are system, method, and computer program product embodiments for verifying a document. An embodiment operates by receiving an initial image of a document and identifying a first imperfection on a feature of the document. Thereafter, the feature of the initial image is segmented into a first and second partially overlapping segment corresponding to a first and second portion of the feature, respectively. Subsequently, the feature's first portion is determined to be free from the first imperfection, and the first imperfection is identified in the feature's second segment. After receiving a second image of the document including the feature's second portion, the feature's second portion in the second image is determined to be free from a second imperfection. As a result, an image of the feature is created based on the first and second portions of the feature derived from the initial and second images, respectively.

Abstract: A prism member of an authentication apparatus includes a living body contact surface configured to be in contact with the living body, and an imaging surface opposed to the living body contact surface and is formed at a position generally parallel therewith. The prism member includes a reflection surface in contact with the living body contact surface and the imaging surface, to reflect light from the former surface toward the latter surface. A visible light source below the imaging surface radiates visible light to the living body via the imaging and living body contact surfaces. The reflection surface is at an angle such that light from an inside of the prism member is totally reflected at the living body contact surface in an optical path running from the imaging surface and reaches the living body contact surface via the reflection surface. A first imaging unit captures a living-body reflected light.

Abstract: A device for verifying a fingerprint includes: a sensing unit which captures a fingerprint image from a fingerprint of a user; a memory which stores a registered fingerprint image; and a controller which calculates a correlation coefficient between at least one region of the fingerprint image and the registered fingerprint image, and rotation-corrects the fingerprint image by a predetermined angle based on a result of comparing the correlation coefficient and a threshold value, where an area of the at least one region is within a range of about 5% to about 40% of an area of the fingerprint image.

Abstract: This disclosure provides some implementations of systems, methods and apparatus associated with a drive scheme for ultrasonic transducer pixel readout. In some implementations, a piezoelectric ultrasonic transducer has a first electrode, a second electrode, and a piezoelectric layer disposed between the first and second electrodes. The second electrode is coupled with a sampling node. A sampling diode has an input and an output. The input is coupled to receive a diode bias signal. The output is coupled with the sampling node. Controller circuitry is configured to control the diode bias signal to at least partially drive a voltage at the sampling node. Read circuitry is coupled with the sampling node to read the voltage.

Abstract: A living body is accurately determined while minimizing increases in the size of a device and increases in the number of components.

Abstract: An authentication apparatus comprises a prism member, an imaging unit, and a visible light source configured to radiate visible light to a living body. The prism member has a substantially trapezoidal shape with at least one side face thereof formed in an expanded shape from a living body authentication face against which an authentication portion of the living body is put, toward an imaging face that is parallel to the living body authentication face. The visible light source is disposed below the imaging face and near a side of an expanded side of the imaging face. The imaging unit is disposed below the imaging face.

Abstract: A miniaturized counterfeit detector provides multiple tests to ascertain the authenticity of currency in a rapid fashion. The miniaturized counterfeit detector comprises one or more sensors for magnetic ink testing. One or more backlights, illuminators or both may be provided for visual inspection of watermarks, florescent or other anti-counterfeiting features. The miniaturized counterfeit detector may be fastened to a surface and does not obstruct manipulation of currency to improve testing speed, especially when a number of currency items, such as banknotes or bills, are being tested.

Abstract: An authentication apparatus comprises a prism member, an imaging unit, and a visible light source configured to radiate visible light to a living body. The prism member has a substantially trapezoidal shape with at least one side face thereof formed in an expanded shape from a living body authentication face against which an authentication portion of the living body is put, toward an imaging face that is parallel to the living body authentication face. The visible light source is disposed below the imaging face and near a side of an expanded side of the imaging face. The imaging unit is disposed below the imaging face.

Abstract: Discussed is a flat panel display device embedding an optical imaging sensor such as a fingerprint image sensor. The device includes: a display panel including a display area and a non-display area, and having a top surface; and a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel, wherein the directional optical unit provides a sensing light to the display area, and wherein the sensing light is collimated and directionized along a predetermined direction of the directional optical unit.

Abstract: An authentication apparatus comprises a prism member, an imaging unit, and a visible light source configured to radiate visible light to a living body. The prism member has a substantially trapezoidal shape with at least one side face thereof formed in an expanded shape from a living body authentication face against which an authentication portion of the living body is put, toward an imaging face that is parallel to the living body authentication face. The visible light source is disposed below the imaging face and near a side of an expanded side of the imaging face. The imaging unit is disposed below the imaging face.

Abstract: Proceeds deposit machine has determination setting data containing correspondence between types of the coupons and information relating to necessity of authentication determination. A type determination unit determines the type of deposited coupon and then refers to the determination setting data. If “yes” has been set for the necessity of the authentication determination for the determined type of coupon, an authentication determination unit performs authentication determination. If the coupon is determined to be counterfeit as result of the authentication determination, the proceeds deposit machine discharges this coupon. If the coupon is determined to be genuine, proceeds deposit machine stores this coupon in one of sheet cassettes.

Abstract: An electronic device and method of recognizing biometric data are provided. The electronic device includes a first camera configured to acquire an image through visible light; a second camera configured to acquire an image through infrared rays; a display; a memory; and a processor configured to receive a request associated with biometric authentication for a user, in response to the request, identify context information associated with the electronic device; when context information corresponds to a first condition, provide to the display a first image corresponding to the biometric authentication and acquired by the first camera, and perform the biometric authentication using biometric data acquired from the second camera; and when the context information corresponds to a second condition, provide to the display a second image corresponding to the biometric authentication and acquired by the second camera, and perform the biometric authentication using biometric data acquired from the second camera.

Abstract: A method includes capturing a signal of a detection substrate exposed to a sample containing a target substance; determining that the detection substrate is in a testable state; and generating an assessment of the presence of the target substance in the sample.

Abstract: A biometric authentication device including a housing, a light source unit that is installed on an upper surface of the housing and includes a light source, and an opening that is provided in the upper surface of the housing and located below the light source, and an imaging unit that is disposed inside the housing is disclosed. In the device, an optical axis of the light source intersects with a longitudinal direction of the housing, and the imaging unit images a user's biometric feature irradiated with an irradiation light from the light source through the opening.

Abstract: A contact image sensor comprises: a light source providing a collimated beam; a detector and a switchable grating array comprising first and second transparent substrates sandwiching an array of switchable grating elements with transparent electrodes applied to said substrates, said substrates together providing a total internal reflection light guide. A first transmission grating layer overlays said first substrate. A second transmission grating layer overlays said second substrate. A quarter wavelength retarder layer overlays said second transmission grating layer. A platen overlays said quarter wavelength retarder layer; a polarization-rotating reflecting layer overlaying said first transmission grating layer. An input coupler for directing light from said light source into said light guide and an output coupler for extracting light out of said light guide towards said detector are also provided.

Abstract: The present disclosure relates to the field of biometric identification of a user, in particular, to a system and method of identifying a user. The method of identifying a user includes: detecting a portion of a user's finger in contact with a touch-sensitive region of a device; and collecting data relating to a fingerprint of the user from the user's finger for a period of time and obtaining a plurality of frames from the data. The method further includes determining whether the user is an authorized user of the device, based on a ridge pattern, a sweat gland pattern, and dynamics of blood circulation in the user's finger as indicated by the data. The method provides an enhanced security system that can be integrated in a user's mobile device to protect against fake biometric characteristics in access control systems.

Abstract: The invention relates to a transfer film (1), in particular hot-stamping film, the use of a transfer film (1), a film, a security document (2), and a method for producing a transfer film (1). Here, it is provided that the transfer film (1) comprises a transfer layer (20) detachably arranged on a carrier layer (10). The transfer layer (20) further has at least one first color layer (30) and the at least one first color layer (30) comprises at least one binder and at least first pigments, the color appearance of which changes depending on the observation angle.

Abstract: A display panel includes an array substrate including organic light-emitting structures, and at least one fingerprint identification unit. Each organic light-emitting structure has a first side facing the array substrate, and the fingerprint identification unit is disposed in a display region on the first side of the organic light-emitting structure. The display panel also includes a plurality of spacers and a plurality of anti-crosstalk pads. When being projected onto the array substrate, the orthogonal projection of each spacer is disposed between orthogonal projections of adjacent organic light-emitting structures. Each anti-crosstalk pad is disposed between a corresponding spacer and the fingerprint identification unit. An orthogonal projection of the anti-crosstalk pad onto the array substrate include a first region overlapping with the orthogonal projection of the spacer onto the array substrate.

Abstract: The invention relates to an apparatus and a method for checking value documents marked with feature substances, and to the corresponding feature substances. The feature substances are detected on the basis of Raman or SERS spectroscopy also at high transport speeds with a spatial resolution in the low millimeter region or better and reliably identified.

Abstract: An authentication apparatus comprises a prism member, an imaging unit, and a visible light source configured to radiate visible light to a living body. The prism member has a substantially trapezoidal shape with at least one side face thereof formed in an expanded shape from a living body authentication face against which an authentication portion of the living body is put, toward an imaging face that is parallel to the living body authentication face. The visible light source is disposed below the imaging face and near a side of an expanded side of the imaging face. The imaging unit is disposed below the imaging face.

Abstract: In the fingerprint identification system according to the present disclosure, the fingerprint sensor collects multiple frames of fingerprint images sliding-inputted by a user, the judging unit determines whether, among the multiple frames of fingerprint images, there is a first overlap region between a current frame of fingerprint images and a previous frame of fingerprint images; if yes, the judging unit removes the first overlap region from the current frame of fingerprint images and superposes the previous frame of fingerprint images with the current frame of fingerprint images to form a superposed fingerprint image; the judging unit completes judgment of all the multiple frames of fingerprint images to obtain a template fingerprint image; the processing unit saves characteristic points of the complete template fingerprint image.

Abstract: Systems and methods for optical imaging are disclosed. The systems and methods include a display for imaging an input object. The display includes a sensing surface; a plurality of display pixels; a plurality of detector pixels; and a processing system. The processing system is configured to determine a location of the input object relative to the sensing surface; illuminate one or more display pixels of the plurality of display pixels according to a pattern depending on the location of the input object; and acquire image data of the input object from one or more detector pixels of the plurality of detector pixels, wherein the image data corresponds to light from the one or more display pixels that is reflected at the sensing surface.

Abstract: An image acquisition apparatus, a terminal device, a liquid crystal terminal device and an image acquisition method are provided according to the disclosure. The image acquisition apparatus includes an imaging plate and an image sensor disposed to be spaced apart from one side of the imaging plate. The imaging plate is provided with an imaging pinhole corresponding to the image sensor. The liquid crystal terminal device includes an LCD panel and a backlight element. The image acquisition apparatus is disposed at a position corresponding to the LCD panel within the backlight element. The image acquisition method includes acquiring an image of an object to being scanned by the image sensor through the imaging pinhole at a side of the imaging panel. An ultrathin fingerprint scanner can be formed based on pinhole imaging principle in the disclosure, and can be further combined with an LCD screen to accomplish fingerprint acquisition function.

Abstract: An image capture apparatus including a light guide device, a transparent device, a light source and an image capture device is provided. The light guide device includes a top surface, a bottom surface opposite to the top surface, a light incident surface connected between the top surface and the bottom surface and a light emitting surface opposite to the top surface. The bottom surface is connected between the light incident surface and the light emitting surface. An acute angle ? is included between the light incident surface and the top surface. The transparent device is disposed on the top surface of the light guide device. The light source is used to emit a light beam. The image capture device is disposed on the light emitting surface of the light guide device.

Abstract: A solid-state imaging device having a pixel portion in which a plurality of pixels each including a photodiode are arranged in rows and columns, a reading part for reading pixel signals from the pixel portion, and a key generation part which generates a unique key by using, as the key generation-use data, at least one of fluctuation information of pixels and fluctuation information of the reading part, wherein the key generation part includes a tamper resistance enhancement processing part for processing the key generation-use data to enhance the tamper resistance making it difficult to break the unique key as tamper resistance enhancement processing. Due to this, a unique key having a high confidentiality can be generated. Further, reproducibility and uniqueness of the unique ID can be improved to secure a high tamper resistance of the unique key, and tampering and forgery of an image can be reliably prevented.