1373 results about "Color sensor" patented technology

The invention describes several embodiments of an adapter which can make use of the devices in any commercially available digital cameras to accomplish different functions, such as a fundus camera, as a microscope or as an en-face optical coherence tomography (OCT) to produce constant depth OCT images or as a Fourier domain (channelled spectrum) optical coherence tomography to produce a reflectivity profile in the depth of an object or cross section OCT images, or depth resolved volumes. The invention admits addition of confocal detection and provides simultaneous measurements or imaging in at least two channels, confocal and OCT, where the confocal channel provides an en-face image simultaneous with the acquisition of OCT cross sections, to guide the acquisition as well as to be used subsequently in the visualisation of OCT images. Different technical solutions are provided for the assembly of one or two digital cameras which together with such adapters lead to modular and portable high resolution imaging systems which can accomplish various functions with a minimum of extra components while adapting the elements in the digital camera. The cost of such adapters is comparable with that of commercial digital cameras, i.e. the total cost of such assemblies of commercially digital cameras and dedicated adapters to accomplish high resolution imaging are at a fraction of the cost of dedicated stand alone instruments. Embodiments and methods are presented to employ colour cameras and their associated optical sources to deliver simultaneous signals using their colour sensor parts to provide spectroscopic information, phase shifting inferometry in one step, depth range extension, polarisation, angular measurements and spectroscopic Fourier domain (channelled spectrum) optical coherence tomography in as many spectral bands simultaneously as the number of colour parts of the photodetector sensor in the digital camera. In conjunction with simultaneous acquistion of a confocal image, at least 4 channels can simultaneously be provided using the three color parts of conventional color cameras to deliver three OCT images in addition to the confocal image.

A color filter enhancement method for a portable digital image acquisition device includes digitally exposing color pixels of a color sensor array for a first digital exposure duration and digitally exposing white pixels of a color sensor array for a second digital exposure time shorter than the first digital exposure duration. A color filter enhanced digital image is generated using data from both the color pixels exposed for the first digital exposure duration and the white pixels exposed for the second digital exposure duration.

A system and method for generating white light involves using a combination of white, red, green, and blue LEDs to produce white light and adjusting the emitted light in response to feedback signals. A light system has a light source that includes at least one white LED and multiple color LEDs and a spectral feedback control system configured to detect light that is output from the light source and to adjust the light that is output from the light source in response to the light detection. The spectral feedback control system may include a color sensor configured to provide color-specific feedback signals, a controller configured to generate color-specific control signals in response to the color-specific feedback signals, and a driver configured to generate color-specific drive signals in response to the color-specific control signals.

A direct-type backlight device for a non-self-luminous image display panel has a light-emitting area corresponding to a display area of the image display panel. The light-emitting area is arranged by combining a plurality of backlight substrates each of which is provided with (i) a color sensor for detecting an incident light intensity and (ii) red, green, and blue LEDs whose respective light intensities are controlled in accordance with a detection result obtained by the color sensor. This arrangement allows reduction of brightness unevenness entirely in the light-emitting area of the backlight device.

An image processing method and apparatus is described for processing a signal from a monochrome or color sensor that may be subject to pixel defects or blemishes. Without prior knowledge of any pixel defects, the processing method examines each pixel value and its neighboring pixel values. A number of tests are applied to the set of pixel values to determine whether the underlying pixel is defective. If the underlying pixel is determined to be defective, the pixel value is replaced by an estimate value derived from the values of its neighboring pixels. Otherwise, the pixel value remains intact.

An ambient light filter structure and its response are disclosed. The ambient light filter structure comprises a silicon substrate, a first silicon nitride (Si3N4: 3200A+−200) component layer, a first silver (Ag: 285A+−35) component layer, a second silicon nitride (Si3N4: 920A+−50) component layer, a second silver (Ag: 285A+−35) component layer, and a third silicon nitride (Si3N4: 3500A+−200) component layer. Another ambient color filter structure is disclosed and further comprises a first sliver component layer, a first silicon nitride (Si3N4) component layer, second sliver (Ag) component layer, a second silicon nitride (Si3N4) component layer, a third sliver (Ag) component layer, a third silicon nitride (Si3N4) component layer, and a fourth sliver (Ag) component layer. The ambient light filter structure is set in laminating over the ambient light sensor in order to accomplish IR blocking with the photometric wavelength from 700 nm to 1100 nm. The ambient color filter structure is applied in a color sensor system for providing the specific color spectra that human eyes could recognize.

A vertical tri-color sensor having vertically stacked blue, green, and red pixels detects at least blue and green components of incident light by converting the blue and green components to surface plasmons.

An ambient light sensor (ALS) system is described. The ALS system includes a polychromatic color sensor, an analog-to-digital converter (ADC), and a digital processor. The polychromatic color sensor generates a plurality of analog signals from a corresponding plurality of color channels based on a detected ambient light signal. The ADC is coupled to the polychromatic color sensor. The ADC converts the plurality of analog signals to a plurality of digital signals. The digital processor is coupled to the ADC. The digital processor generates a processed light signal. The processed light signal describes a characteristic of the detected ambient light signal. Embodiments of the ALS system provide a more comprehensive characterization of the ambient light, and facilitate control of a device based on the characterization of the ambient light.

The present invention relates to a camera (1, 1′) for generating a biometrical signal of a living being comprising: a filter (11) for blocking incident visible light in a wavelength range up to at least 550 nm, a color sensor (12, 12′) for receiving said filtered incident light and generating at least two different color signals (5, 6, 9), a combination unit (15) for generating at least one combined color signal (7a, 7b) by combining said at least two color signals, and a processing unit (16) for processing said at least one combined color signal and extracting at least one biometrical signal (8) of said living being (3).

Light is mixed within a mixing cavity. Light is transported from the mixing cavity, through an optical cable, to a color sensor. The transported light is sampled by the color sensor. Light color within the mixing cavity is controlled based on information from the transported light sampled by the color sensor.

A solar cell element having improved power generation efficiency is provided. A solar cell element 100 has a substrate 110, a mask pattern 120, semiconductor nanorods 130, a first electrode 150 and a second electrode 160. The semiconductor nanorods 130 are disposed in triangular lattice form as viewed in plan on the substrate 110. The ratio p / d of the center-to-center distance p between each adjacent pair of the semiconductor nanorods 130 and the minimum diameter d of the semiconductor nanorods 130 is within the range from 1 to 7. Each semiconductor nanorod 130 has a central nanorod 131 formed of a semiconductor of a first conduction type, a first cover layer 132 formed of an intrinsic semiconductor and covering the central nanorod 131, and a second cover layer 138 formed of a semiconductor of a second conduction type and covering the first cover layer 132.

A mobile terminal and photographing method for the same are disclosed. The mobile terminal includes an optical section receiving optical signals, an image sensor comprising color sensor elements detecting sensing-image information from a transmitted optical signal, and infrared sensor elements detecting infrared-image information from the transmitted optical signal and an image processing unit producing infrared-image information of the color sensor elements, using the detected infrared-image information.

A lighting device includes a monolithic LED chip flip-chip mounted onto an interconnect structure. The monolithic chip includes LED junctions formed from a single LED junction. An active electronic component is also mounted onto the interconnect structure at a distance from the monolithic chip that is less than five times the maximum dimension of the monolithic chip. The active electronic component controls LED drive currents independently supplied to the LED junctions. Different types of phosphor are disposed laterally above the various LED junctions. A color sensor measures the light emitted from the lighting device when drive currents are supplied to first and second LED junctions. The active electronic component then supplies more drive current to the first LED junction than to the second LED junction in response to the color sensor measuring the light emitted when the prior LED drive currents are supplied to the first and second LED junctions.

In luminance priority multilayer color film, one of the layers substantially matches the luminance sensitivity of the human eye. This luminance layer distinguishes from prior art color films that have a blue, a green, and a red sensitive layer. This luminance layer has the priority front position to sense light before being diffused and attenuated by other layers, giving the luminance record enhanced speed and clarity compared to prior art blue-priority color film. In another embodiment, a layered CCD sensor has a top silicon layer that is sensitive to all colors, followed by a yellow filter, a second silicon layer responsive to green and red light only because of the yellow filter, a cyan filter, and a bottom silicon layer receiving only green light. An image from a luminance-priority color sensor inputs to a color space conversion to recover full color. In the preferred embodiment, a luminance layer on top maps to a luminance "Y" value, and underlying color sensitive layers are used in conjunction with the luminance to derive the "U" and "V" chrominance vectors of YUV color space.

Scanner with light source calibration mechanism. The scanner includes a light source that generates a white light utilized to scan an image. The light source calibration mechanism includes a calibration color sensor that generates a calibration color sensor output. The light source calibration mechanism receives a predetermined color profile that can be, for example, the amount of red, green light, and blue light expected from the light source utilized by the scanner for scanning. The color calibration mechanism calibrates the light source of the scanner based on the output of the calibration color sensor and the predetermined color profile.

A system for identifying a reservoir used with a fluid delivery device. The system includes a reservoir comprising a housing for holding fluid and a colored marking located on a surface of the housing. A fluid delivery device includes a compartment for receiving and operatively coupling with the reservoir. A light source shines light on the colored marking of the reservoir. A color sensor detects wavelengths reflected and / or refracted from the colored marking due to the light shined on the colored marking. A processor of the delivery device determines a color of the colored marking from the detected wavelengths and ascertains information related to the reservoir or the fluid in the reservoir corresponding to the determined color, wherein the processor operates the fluid delivery device according to the ascertained information, wherein the information may include a reservoir type and / or medication type.

An RGB (red, green and blue) based method for adjusting white balance of an LED backlight comprises the following steps: when a display runs independently, adjusting the backlight to a new brightness level after powering up; reading the value of a temperature sensor on a backlight board; reading the drive current duty ratio of the backlight corresponding to the brightness level and the standard value of a color sensor at the temperature; turning on the backlight according to the read drive current duty ratio; reading the values of red, green and blue in the color sensor on the backlight board and comparing the actual value and the standard value of the current color sensor; and if the actual value is more than the standard value of the current color sensor, reducing a bit of the current duty ratio of the backlight, conversely, increasing a bit of the current duty ratio of the backlight. In order to obtain the drive current duty ratio and the standard value of the color sensor, the method adopts particle swarm optimization. The method has the advantages of adjusting white balance automatically at wide temperature, accelerating the response speed, relieving the labor intensity and improving the efficiency.

A color sensor includes: a substrate; first to third light receiving elements on the substrate; a red light filter for passing a red light and a first near infrared light block filter for blocking a near infrared light on the first light receiving element; a green light filter for passing a green light and a second near infrared light block filter on the second light receiving element; a visible light block filter for blocking a visible light on the third receiving element; and an ultraviolet light block plate disposed over the first and second near infrared light block filters and the visible light block filter.

To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

Light emitted from a lamp enters a color wheel having a region for allowing a predetermined color to pass therethrough, is reflected on a mirror, and enters a DMD. After this, the light is reflected by the DMD and enters a color sensor, which then detects the color of the transmitting light. A projection apparatus automatically synchronizes the control on the rotation of the color wheel and the control on the proceeding direction of the transmitting light by the DMD, based on a color time-division pattern of the transmitting light detected by the color sensor.

The present disclosure provides an absorbent article for personal hygiene. More particularly, in one embodiment, the absorbent article absorbent article includes at least one property changing indicator. A detector device is also provided that includes at least one sensor. The sensor is adapted to detect the property change of the property change indicator in the absorbent article. In one particular embodiment, for example, the property changing indicator may include an optical property indicator such as a color change indicator and the sensor may include an optical sensor such as a color sensor.

A video communication device includes a video communication device body; a camera fitted to the video communication device body to record images of an object; at least one detection unit fitted to the video communication device body to detect the object according to a predetermined condition; and a camera rotation angle adjuster fitted to the video communication device body to adjust a rotation angle of the camera according to detection data from the detection unit so that the camera automatically tracks a position of the object when the object moves. The moving object can be located through a detection unit, such as a voice sensor, a codec, a color sensor and an IR sensor, and be automatically tracked by suitable adjustment of the rotation angle of a camera. A wide angular field is ensured and video telephony quality is improved.

The invention provides a color calibration system capable of performing color calibration with high accuracy and simply. The color calibration system (100) in accordance with a preferred embodiment of the present invention comprises a display device (12) provided with a color sensor (12c) for detecting a color temperature and illuminance of ambient light (14), a microcomputer (12b), and a colorimeter (13) for performing colorimetry on a display screen (12a) of the display device (12) from the outside. The microcomputer (12b) calculates a target value by using a preset calculation equation and a detection result on the ambient light (14) detected by the color sensor(12c). Then, the microcomputer (12b) automatically performs color calibration of the display device so that a colorimetry result obtained by the colorimeter (13) may agree with the target value.

A system for identifying a reservoir used with a fluid delivery device. The system includes a reservoir comprising a housing for holding fluid and a colored marking located on a surface of the housing. A fluid delivery device includes a compartment for receiving and operatively coupling with the reservoir. A light source shines light on the colored marking of the reservoir. A color sensor detects wavelengths reflected and / or refracted from the colored marking due to the light shined on the colored marking. A processor of the delivery device determines a color of the colored marking from the detected wavelengths and ascertains information related to the reservoir or the fluid in the reservoir corresponding to the determined color, wherein the processor operates the fluid delivery device according to the ascertained information, wherein the information may include a reservoir type and / or medication type.