266 results about "Light characteristic" patented technology

Image capture systems, devices, and methods that automatically focus on objects in the user's field of view based on where the user is looking / gazing are described. The image capture system includes an eye tracker subsystem in communication with an autofocus camera to facilitate effortless and precise focusing of the autofocus camera on objects of interest to the user. The autofocus camera automatically focuses on what the user is looking at based on gaze direction determined by the eye tracker subsystem and one or more focus property(ies) of the object, such as its physical distance or light characteristics such as contrast and / or phase. The image capture system is particularly well-suited for use in a wearable heads-up display to capture focused images of objects in the user's field of view with minimal intervention from the user.

A reconfigurable organic light-emitting device and the display apparatus employing such organic light-emitting device, wherein the reconfigurable organic light-emitting device comprises at least two organic light-emitting layers and at least one high-energy-gap carrier-blocking layer. The at least one high-energy-gap carrier-blocking layer is formed between each of the organic light-emitting layers. The structure of the reconfigurable organic light-emitting device can be reconfigured through heating, and the reconfigurable organic light-emitting device may thus emit light characteristic of one layer of the at least two organic light-emitting layers, after a bias voltage is applied on the upper electrode and the lower electrode of the reconfigurable organic light-emitting device. The heating may be performed with a built-in resistive heating source, an external heating source or a light-beam. By employing the reconfigurable organic light-emitting device, fixed-pattern, passive-matrix, and active-matrix display apparatus of multi-color or full-color may further be fabricated.

An external cavity laser may be swept rapidly in frequency and cavity length to prevent formation of modes providing improved spectral response and light characteristics.

A visible light characteristic changing layer is formed in a location which can be viewed from a part of a label surface of an optical medium. The optical medium is set on a turntable of an optical disk unit, which may be rotated at a constant angular velocity, while the power of a laser beam is modulated in accordance with image data. The optical pickup operates at a first power level when changing a visible light characteristic of the optical medium to form the visible information and the optical pickup operates at a lower power level when not changing a visible light characteristic of the optical medium. As a result, a visible-light reflectivity of the visible light characteristic layer is changed, thereby forming an image corresponding to the image data on the label surface, A tracking servo operation is turned off while the optical pickup forms the visible information.

The invention discloses an authentication authorization method and an authentication authorization system and solves the problem that the traditional authentication authorization method is ineffective when the passwords are deciphered or stolen. The method includes: respectively collecting infrared image data and visible light image data on the same image; extracting the infrared characteristic information and the visible light characteristic information; carrying out characteristic integration treatment on the infrared characteristic information and the visible light characteristic information to generate the characteristic information of one image; comparing the image characteristics after being integrated with the pre-memorized image characteristics to carry out authentication authorization. Compared with the traditional password authentication authorization method, the authentication authorization method of the invention based on face identification has high safety and no dangers that the passwords are deciphered or stolen; besides, a user need not to memorize the passwords, thus being more convenient for using. The invention also discloses an authentication authorization system and a terminal system that is matched to be used. The invention can be used in the authentication process of face identification.

In a method for measuring a dimension or angle of a scattering feature of an optical device, such as a photonic crystal, at least part of the array is irradiated with light. A characteristic of light scattered from the array is detected. A comparison algorithm is run on the detected characteristic of the scattered light. The comparison algorithm provides one or more numerical values indicative of the measured dimension or angle. A system for measuring a dimension or angle of a feature of an optical device includes a light source and optics for focusing light from the light source onto a target area of the optical device. A light detector is positioned to detect scattered light from the target area, with the detected light used to create a measured light characteristic. A computer linked to the light detector performs a comparison algorithm on the measured light characteristic and outputs a numerical value of the dimension or angle measured. In method for designing an optical device, such as a photonic crystal for use on an LED, an intended scattered response based on light emission characteristics desired from the optical device is simulated. One or more design parameters of the optical device are varied. An interim reflectance response of the optical device with variation of the parameters is determined. Interim scattered responses are compared to the intended scattered response. One or more scattered responses which match the intended scattered response are selected. An optical device is designed using one or more of the design parameters associated with the selected interim scattered response.

An image display device of the present invention is provided with a liquid crystal display panel for displaying an image in accordance with an input of a chrominance signal, a sensor for sensing light characteristics of external light, and a chrominance signal converter for converting a chrominance signal to be inputted into an image display section in accordance with an output of the sensor. The chrominance signal converter includes a target display color setting section for setting a color to display as an image agreeable with chromatic adaptation characteristics of human, according to the output of the sensor, and a color reproduction section for reproducing a target color set by the target display color setting section, by using three primary color with chromaticities suitable for the output of the sensor. The target display color setting section converts the chrominance signal into a chrominance signal of the target display color reproduced by the color reproduction section. Provided is an image with color tone, in which no change is sensed by a user, even if external light condition, that is the light characteristics of the external light.

A display apparatus for projecting images towards eyes of at least one viewer selectively when said eyes are spaced horizontally within a viewing field, said apparatus comprising: transmitting means for transmitting light; image generation means for generating different images, the image generation means being capable of generating image parts in a plurality of different vertical image areas; and light configuration means for configuring said transmitted light to provide a plurality of sets of vertical light configurations, the different configurations in each set being selectable to provide different emergent light characteristics for a vertical image area which is common to each configuration in a set and which is different for each set, whereby said different images are projected by said apparatus to coincide with one or more eyes selected from the eyes of each of the one or more viewers, and not one or more other eyes of the viewers.

The invention discloses a section-variable metal lattice structure and a machining method thereof. The section-variable metal lattice structure comprises a plurality of section-variable lattice units arranged in the space. Each section-variable lattice unit is formed by connecting a plurality of section-variable rod pieces. The section-variable metal lattice structure is formed by conducting sintering layer by layer through a laser melting technology. A working bin of a metal powder sintering machine is kept sealed before machining with nitrogen being protection gas. For the internal force characteristics of all parts of the rod pieces, the rod pieces of the metal lattice units are optimized. Compared with an even lattice structure formed by weaving and welding metal wires, the section diameter of the section-variable rod pieces in the section-variable lattice structure is accurately determined by the internal force condition needing to be met under the load condition, materials forming the section-variable rod pieces are increased or decreased according to the stress gradient in the section-variable rod pieces, powder materials are saved, and the light characteristic is improved.

A backlight system for a backlit display, the system comprising a plurality of backlight units corresponding to an adjacent region of a backlit display, each unit having at least one light emission source; and a controller for individually controlling each backlight unit to vary at least one light characteristic of light emission from each backlight unit, wherein the at least one light characteristic is defined by determining at least one predefined parameter of light for each of a plurality of regions of an image to be displayed on a backlit display, the regions of the image corresponding to an adjacent backlight unit.

The invention provides a high-precision three-dimensional reconstruction method and system based on binary surface structured light. The method comprises the steps of calibrating a CCD high-definitioncamera and a projector, projecting directional light source emitted by an LED lamp onto a scene where a target object is located, acquiring an image through the CCD high-definition camera, matching acontour approximate to the target object through a self-adaptive identification module, carrying out structured light information coding according to the result recognized by the self-adaptive identification module, projecting the structured light to the approximate position where the plane of the target contour is located by the projector, the CCD high-definition camera acquiring a modulated image projected on a target object, combining the structural light characteristic points with the gradient information obtained by the LED light contour to obtain a final three-dimensional image. The three-dimensional reconstruction system has the beneficial effects that the adaptability of the three-dimensional reconstruction system to environmental changes can be improved, the reconstruction precision and accuracy of the target object are effectively improved, and the problem that the operation cost is increased due to the multi-objective environment is solved.

A lighting arrangement for presentation of a first object is disclosed. The arrangement comprises an accent lighting assembly and a decoration lighting assembly. The accent lighting assembly is arranged to provide illumination of the first object, has at least one accent light characteristic, and comprises at least one accent light generating device. The decoration lighting assembly is arranged to provide background lighting of the first object, has at least one decoration light characteristic, and comprises at least one decoration light generating device. The arrangement also comprises at least one sensor, arranged to detect a distance between the sensor and a second object and to generate a signal value representing the distance, and a controller arranged to receive the signal value from the at least one sensor and to adapt the accent light characteristic and the decoration light characteristic based on the signal value. Corresponding use, method and computer program product are also disclosed.

An image processing and controlling system is provided in the present invention. In addition to adjusting the image displaying modes according to the ergonomic look-up table, the present invention is further capable of adjusting the weighting value with respect to each image characteristic value of an initial image according to lighting characteristics of an ambient light system such that a display unit can provide the most comfortable viewing conditions and the best image quality under different ambient lighting characteristics. In another embodiment, the present invention further functions to control the ambient light system according to the image characteristics of the weighted output image. By means of the foregoing dual controlling ways, the image processing and controlling system may provide appropriate output images corresponding to different viewing scenario and conforming to the requirement of output quality.

The present disclosure is directed towards a multimedia system comprising a multimedia reader. The multimedia reader may be configured to read multimedia content and to extract light surround content. The light surround content may represent a light surround control signal. The light surround content may be extracted from the multimedia content. The multimedia reader may also be configured to output the light surround control signal. Further, the multimedia system may also include one or more light emitting devices. Each light emitting device may be in communication with the multimedia reader. Each light emitting device may be configured to receive the light surround control signal and to control a light characteristic based upon, at least in part the light surround control signal. Numerous other embodiments are also within the scope of the present disclosure.

An oval shaped diamond, adapted to display a hearts and arrows pattern when exposed to light characteristic of the hearts and arrows pattern in a round diamond, comprising: an oval shape having two long sides symmetrical to each other, two short sides symmetrical to each other and four corner sides symmetrically located between the long sides and the short sides respectively, eight main crown facets of unequal size and eight main pavilion facets of unequal size, sixteen pavilion half facets; a girdle of non-uniform thickness separating the crown and pavilion facets and two subsidiary pavilion facets in alignment with each other on the long sides of the diamond adjacent a main pavilion facet.

A camera attachment is configured, adapted and / or operative to compress a pliant object or subject for allowing photographing of the object therethrough by the camera to which the camera attachment is coupled. The camera attachment allows the user to apply a variable compressive force to an object to be photographed through application of a compressive force on the camera. The variable compressive force applied by the user on the camera is translated to a compression portion of the camera attachment and onto the object. The compression portion includes a compression plate that is composed of a material suitable for the functions and / or features described herein and particularly of a material having light characteristics that range from minimally opaque to entirely translucent for photographing the object it is compressing. Additionally, the overall length of the camera attachment is variable through adjustable length support structures such that the distance between the camera lens and the compression plate may be changed. The lens-to-compression plate distance is thus variable, ranging from a minimum lens-to-plate distance to a maximum lens-to-plate distance. These parameters are controlled by size of the camera attachment. The adjustable length support structures of the camera attachment are independently adjustable and independently releasably fixable in length. Also, one or more support structure may carry representations and / or markings for providing one or more of a scale, reading, position and / or camera parameter and / or setting.

An information means with waterproof and transmitting light characteristic is disclosed to include a connector, an electric device connected to the connector for data storage and transmission, a transparent waterproof member surrounding the connector around the electric device for protection against outside water, an outer layer surrounding the waterproof member and a part of the connector and the whole area of the electric device for protection against external heat energy, and a light guide extending from the transparent waterproof member to the outside of the outer layer for guiding light from electric device to the outside for visual check of the operation status of the electric device.

Embodiments of the present invention provide a display method of a mobile terminal and the mobile terminal, the method comprising: detecting light feature information of the environment where the mobile terminal is located; and identifying environmental information of the environment where the mobile terminal is located according to the light feature information Calculating target display parameters matching the environmental information, wherein the target display parameters include at least one or more of saturation, color temperature, and brightness; adjusting the display mode of the mobile terminal according to the target display parameters. The display method of the mobile terminal provided by the embodiment of the present invention, on the one hand, adjusts the display mode of the mobile terminal adaptively to the environment, and does not add a warm-colored mask to the display interface, and does not need to stick a film on the screen, which can ensure On the other hand, the display is adaptive to the environment, which improves the utilization rate of display performance, reduces the intensity, component and other attributes of blue light, and realizes the filtering of blue light.

Display characteristics are calculated using a first captured image for determining ambient light characteristics and a second captured image including the ambient light characteristics and the display characteristics by removing the ambient light characteristics from the second captured image, and display correction is performed based on the display characteristics. This can provide a device that saves time and effort such as moving a color-measurement device when correcting the display characteristics of one or more display devices and that is able to perform display configuration even if a large portion is illuminated by ambient illumination.

A side-emitting backlight system for an image display panel, the system comprising a plurality of light emission units, each unit arranged so as to provide side light emission to region of an image display panel and having at least one light emission source; and a controller for individually controlling each light emission unit to vary at least one light characteristic of light emission from each light emission unit; wherein the at least one light characteristic is defined by determining at least one predefined parameter of light for each of a plurality of regions of an image to be displayed on the display panel, the region of the image corresponding to an adjacent light emission unit.

A method, apparatus, and user interface for providing a network based surround-light environment to dynamically drive lighting scenes are described. Location information of one or more illuminating elements relative to a display for presenting media information is determined. Lighting characteristic information for the one or more illuminating elements is determined. And a lighting profile for illuminating the one or more illuminating elements based on the location information and lighting characteristic information is determined.

The present invention belongs to a detection and analysis method, in particular to a detection and selection method for the quality and reliability of a high power semiconductor laser and an array laser. Firstly, a V-I curve and a P-I curve of the laser are measured; an electrical derivative curve IdV / dI-I and a light derivative curve dP / dI-I and d<2>P / dI<2>-I are obtained through computer processing. Then the threshold current Ith of the measured device is obtained from the light derivative curve d<2>P / dI<2>-I or the electrical derivative curve IdV / dI-I. So the parameters of b, m, Rs1, Rs2 and h are obtained. A light characteristic when the laser is lased is given from a peak height H, a peak width W and a peak height-width ratio O at the threshold of the second order light derivative curve. Finally, the obtained parameters are compared with the normal value of parameters of the device same structure to judge the quality and reliability of the detected high power semiconductor laser or the array laser. The device filtration of the present invention is characterized by no-wear, high-speed and convenience, which is suitable for wide application.

A lighting device in which a heat sink and a cover are formed by co-extrusion and a manufacturing method for the same are provided. The heat sink and the cover may be co-extruded. A shape control portion may be formed at the heat sink to control a shape of a seating portion to seat a circuit substrate during extrusion of the heat sink. In addition, a light characteristic control portion may be provided between a light emitting diode (LED) and the cover to control characteristic of light generated from the LED.

A particle detection system is provided. The particle detection system includes at least one tapered optical fiber, a light source configured to transmit light through the at least one tapered optical fiber, a photodetector configured to measure a characteristic of the light being transmitted through the at least one optical fiber, and a computing device coupled to the photodetector and configured to determine whether a nanoparticle is present within an evanescent field of the at least one tapered optical fiber based on the measured light characteristic.

In a light modulating plate, a backlight assembly having the light modulating plate and a display device having the light modulating plate, the light modulating plate includes a light modulating layer and a light characteristics improving member. The light modulating layer includes a foam layer to modulate a light. The light characteristics improving member is integrally formed with the light modulating layer to improve optical characteristics of the light that has passed through the light modulating layer. Therefore, the backlight assembly is easily fabricated, and an image display quality is improved.

The invention discloses an earphone wearing state detection method, which relates to the technical field of electronic equipment, and solves the problem of increasing the power consumption of headphones caused by inaccurate wearing state detection of headphones in the prior art. The method comprises the following steps of: acquiring data collected by a light sensor and a micro-motion sensor; Determining the wearing state of the headphones according to the data; Wherein, the wearing state of the headphones is the wearing state and the unwearing state; The method changes the prior art process ofdetecting the wearing state only through an acceleration sensor, and adopts a light characteristic which can better reflect the wearing state of a user and a human respiration characteristic to detect the wearing state of an earphone. That is to say, the light sensor and micro-motion sensor can improve the accuracy of headphone wearing state detection, thereby reducing the power consumption of headphones. The invention also discloses an earphone wearing state detecting device, an earphone and a computer-readable storage medium, which have the beneficial effects.

Systems and methods for EUV Light Source metrology are disclosed. In a first aspect, a system for measuring an EUV light source power output may include a photoelectron source material disposed along an EUV light pathway to expose the material and generate a quantity of photoelectrons. The system may further include a detector for detecting the photoelectrons and producing an output indicative of EUV power. In another aspect, a system for measuring an EUV light intensity may include a multi-layer mirror, e.g., Mo / Si, disposable along an EUV light pathway to expose the mirror and generate a photocurrent in the mirror. A current monitor may be connected to the mirror to measure the photocurrent and produce an output indicative of EUV power. In yet another aspect, an off-line EUV metrology system may include an instrument for measuring a light characteristic and MoSi2 / Si multi-layer mirror.

A process to create a fungible global standard for diamonds and gemstones. The process involves grouping diamonds in an investment standard according to their gemological, proportional, optical and light behavior characteristics. Diamonds that conform to the investment grade standard are interchangeable within a specific size range according to an equivalent monetary bundling process. Diamonds subjected to the standard conform to a holistic set of gemological, proportional, optical and light characteristic requirements that enables diamonds to be classified into a extraordinarily homogeneous, visually indistinguishable and highly fungible group which can be used to create baskets of diamonds to form an index / benchmark for diamond pricing, financial instruments, and a standard that can be used for certifying diamonds as investment grade to insure quality.

The invention relates to an infrared image-assisted method of recognizing the contamination condition of an insulator by a visible light image. The method comprises the following steps: collecting the visible light image of the insulator, and performing visible light image processing and visible light characteristic value extraction of the insulator; collecting the infrared image of the insulator, and performing infrared image processing and infrared characteristic value extraction of the insulator; establishing a contamination level recognizing mathematic model based on the visible light image and an infrared image information-assisted visible light image contamination state recognizing mathematic model; and selecting a corresponding mathematic model to solve the contamination level of the insulator according to the environmental relative humidity. Compared with the prior art, the method provided by the invention has the advantages of removing the influence of environmental lighting, considering the influence of a high relative humidity environment on a visible light method, and being concise and universal in mathematic model.