32 results about "Color wavelength" patented technology

The invention provides a continuous depth gradually-changing grating structure based on a silicon carbide substrate and a preparation method thereof. The preparation method comprises the following steps: forming a sacrificial layer with gradually-changing thickness on the silicon carbide substrate; etching is carried out by adopting a two-step plasma etching process; and polishing the surface through a plasma polishing process. According to the invention, the gradient sacrificial layer is combined with two-step plasma etching, and a high-precision continuous depth gradient grating structure is realized on the silicon carbide substrate, so that the diffraction requirements of RGB three-color wavelengths are met; the micro-groove defect in the etching process is eliminated, the problem that the depth-to-width ratio and the surface quality cannot be considered in the traditional process is solved, and a key technical support is provided for mass production of the single-layer full-color optical waveguide; the transmission loss of the optical waveguide is reduced by controlling the surface roughness; and the product yield is improved, the production cost is reduced, and the method is suitable for large-scale production.

The invention relates to the technical field of forest vegetation monitoring, in particular to a forest vegetation parameter real-time monitoring method based on unmanned aerial vehicle images, which comprises the following steps: starting an unmanned aerial vehicle, carrying out real-time image acquisition on a predetermined forest area through a camera, carrying out continuous image capture, synchronously calibrating the camera and setting matched differentiated illumination and depth-of-field conditions; and generating forest image acquisition data. According to the method, the chlorophyll concentration and the leaf area index can be accurately measured through analysis of different color wavelength reflectance, the understanding and tracking precision of the vegetation physiological state is improved, long-term vegetation changes can be carefully monitored through time sequence analysis, the prediction capacity of forest ecological behaviors is enhanced, and the method is suitable for popularization and application. Drought response and pest and disease damage signs are monitored in real time, the timeliness and accuracy of health state evaluation are enhanced, the real-time performance and continuity of data are ensured by dynamically updating a forest vegetation database, and the dynamic monitoring and decision support capacity of forest management is remarkably improved.

The invention relates to the field of color ring element detection, in particular to a color ring element appearance detection device and system based on machine vision. The color ring element appearance detection device based on machine vision comprises a wavelength range adjustment module, a significant score calculation module, a detection wavelength selection module and an appearance detection module. According to the invention, the dynamic optimization of the wavelength of the detection light source is realized by fusing the calculation of the main color wavelength of the color ring element and the modeling of the surface roughness; meanwhile, a surface roughness evaluation factor is introduced, and the minimum allowable detection wavelength is corrected to avoid high-reflection interference; the mechanism can dynamically adapt to batch differences, improve the contrast ratio of defects and backgrounds, and significantly reduce the omission ratio; on the basis, the system calculates a risk index, and preferentially selects the wavelength with the highest sensitivity to the high-risk defect; on the premise that the cost of the light source is controllable, the multi-dimensional self-adaptive matching of the detection wavelength, the element characteristics and the defect risk is realized.

Scalable multi-band wavelength division multiplexing (WDM) transceiver architectures suitable for high-bandwidth optical Compute interconnects (OCI) between computing resources. The WDM wavelength range is divided into two or more color / wavelength bands. Each band of WDM optical signals may be coupled through separate semiconductor optical amplifiers (SOAs) that are tuned to the different bands. The bands may be conveyed through an optical MUX / DeMUX for transmission through an optical fiber. The optical MUX / DeMUX may comprise a band MUX / DeMUX or a polarization MUX / DeMUX.

Image sensors, imaging systems, and methods for constructing image sensors. The image sensor includes a pixel array. The pixel array includes a first photosensitive region, a second photosensitive region, a spectral router, and a spectral filter. The first photosensitive region is configured to detect visible light within a color wavelength range. The second photosensitive region includes a plurality of light scattering structures. The second photosensitive region is configured to detect infrared light. The spectral router is positioned over at least the first photosensitive region. The spectral router is configured to route the visible light within the color wavelength range to the first photosensitive region. The spectral router is also configured to route the infrared light to the second photosensitive region. The spectral filter is positioned over the spectral router. The spectral filter is configured to block visible light outside of the color wavelength range.

The present disclosure relates to a model decimation method, device, medium and electronic equipment. The method comprises: dividing a model surface into a plurality of sub-regions; rendering the model and determining state information of each sub-region under multiple perspectives, wherein the state information comprises brightness, contrast and color; determining a decimation degree of each sub-region according to the state information; and performing a decimation operation in the corresponding sub-region according to the decimation degree. The sensitivity of the human eye to different brightness, contrast and different color wavelengths is different, and the decimation degree of each sub-region determined according to the state information can ensure the recognition accuracy of the human eye. By determining the state information under different perspectives, the accuracy of the decimation degree of each sub-region determined can be improved. In this way, the complexity of the model can be reduced while ensuring the visual experience of the user.

To provide a display device with high definition or high resolution.SOLUTION: A first light-emitting device, a second light-emitting device, a first insulating layer, a first color conversion layer, and a second color conversion layer, the first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer, the second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and a common electrode over the second light-emitting layer; The first insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer, the first color conversion layer is provided to overlap with the first light-emitting device, the second color conversion layer is provided to overlap with the second light-emitting device, the first light-emitting device and the second light-emitting device have a function of emitting blue light, and the first color conversion layer and the second color conversion layer have a function of converting blue light into light with a different wavelength.SELECTED DRAWING: Figure 1

Scalable multi-band wavelength division multiplexing (WDM) transceiver architectures suitable for high-bandwidth optical Compute interconnects (OCI) between computing resources. The WDM wavelength range is divided into two or more color / wavelength bands. Each band of WDM optical signals may be coupled through separate semiconductor optical amplifiers (SOAs) that are tuned to the different bands. The bands may be conveyed through an optical MUX / DeMUX for transmission through an optical fiber. The optical MUX / DeMUX may comprise a band MUX / DeMUX or a polarization MUX / DeMUX.

A microcavity pixel array device and method of manufacture having a shared multi-DBR system configured to cover a broad spectral bandwidth range. A wide emission band is achieved by depositing a first DBR on top of an OLED array and subsequently depositing a second DBR on top of the first DBR, where each DBR has a unique design. The multiple DBRs cover a wider spectral bandwidth range than a single DBR, and therefore almost total reflection is achieved for a series of OLEDs designed at different color wavelengths.

The invention provides a nanoimprint generation method and device for structural colors and imprint equipment, and relates to the technical field of nanoimprint .The method comprises the steps that in the first direction, multiple times of imprint are conducted on the surface of a workpiece through an imprint head, and a first pit sequence is formed; the first pit sequence comprises a first pit and a second pit located in the first direction of the first pit, the vertical distance between the first pit and the second pit in the first direction is a first numerical value, and the first numerical value is determined according to the main color wavelength of the structural color displayed by the second pit. By adjusting the imprinting distance between every two adjacent pits, the pits can present the needed color, and the imprinting efficiency and flexibility of the structural color pattern are improved.

A technology is described for a system for identifying a colorimetric test result from a pathogen test performed on a solid phase substrate. The system can comprise a sensor configured to detect a spectrum of color wavelengths. The system can comprise one or more processors. The one or more processors can be configured to: receive color wavelength data; determine a wavelength threshold for providing a pathogen positive test result; identify whether the color wavelength data meets or exceeds the wavelength threshold for providing a pathogen positive test result; and generate a result indicator indicating either a pathogen positive or pathogen negative test result.

A virtual reality (VR) system can be implemented for evaluating color wavelength sensitivity. The system can use an electronic device featuring a head-mounted display (HMD) and eye-tracking sensors. The system can generate a VR user interface that creates a three-dimensional virtual environment, rendered on the HMD. Within this virtual space, the system can simulate a variety of color wavelength tasks. As users engage with these tasks, the eye-tracking sensors can continuously monitor responses to the simulated tasks. The system can then analyze the tracked data for color wavelength sensitivity performance.

The embodiment of the invention provides a projection system, and relates to the technical field of display. The projection system comprises a driving substrate, a light-emitting assembly and a light combination unit, the light-emitting assembly is connected to one side of the driving substrate, and the light-emitting assembly comprises a first screen, a second screen and a third screen; the first screen, the second screen and the third screen are respectively used for emitting first light, second light and third light which are different in color wavelength (color); the light combining unit is located in a light emitting path of the light emitting assembly; the first light, the second light and the third light are incident to the light combining unit at different angles, and the light combining unit combines the first light, the second light and the third light according to the dispersion principle. Therefore, the light-emitting assemblies are located on the same side of the light combination unit, the structure of the projection system is simplified, the size is reduced, and integration and miniaturization of equipment are facilitated.

A scalable multiband wavelength division multiplexing (WDM) transceiver architecture suitable for high bandwidth optical computing interconnect (OCI) between computing resources. The WDM wavelength range is divided into two or more color / wavelength bands. Each band of the WDM optical signal may be coupled by separate semiconductor optical amplifiers (SOAs) that are tuned to different bands. The wavebands may be transmitted over an optical MUX / DeMUX for transmission over an optical fiber. The optical MUX / DeMUX may include a band MUX / DeMUX or a polarization MUX / DeMUX.

The chromaticity and luminous flux output of a multicolor luminaire with multiple independent wavelength outputs is controlled by a controller that has fewer input channels than there are output channels. A trained neural network is used such that the multi-color wavelength settings of the luminaire produce the specified chromaticity and luminous flux output while optimizing luminous efficacy or color rendering capabilities, or satisfying other constraints applied to the luminaire.

An electronic device includes a first pixel having a single junction and a second pixel having a heterojunction formed by a semiconductor substrate layer in contact with a quantum dot layer. A first filter of a first color, configured to let through wavelengths of the first color and infrared, is arranged vertically in line with the first pixel and at least partially vertically in line with the second pixel. An optical element is interposed between the first filter and the second pixel. The first filter and the optical element operate so that the first pixel receives wavelengths of the first color and the second pixel only receives infrared wavelengths.

The application provides a continuously deep-graded grating structure based on a silicon carbide substrate and a preparation method thereof, and the preparation method comprises the following steps: forming a thickness-graded sacrificial layer on the silicon carbide substrate; performing etching by adopting a two-step plasma etching process; and polishing the surface by adopting a plasma polishing process. By combining the thickness-graded sacrificial layer and the two-step plasma etching process, the continuously deep-graded grating structure with high precision is realized on the silicon carbide substrate, so as to match the diffraction requirements of RGB three-color wavelengths; the micro-groove defects in the etching process are eliminated, the problem that the traditional process cannot simultaneously consider the aspect ratio and the surface quality is solved, key technical support is provided for single-layer full-color optical waveguide mass production; the optical waveguide transmission loss is reduced by controlling the surface roughness; moreover, the product yield is improved, the production cost is reduced, and the application is suitable for large-scale production.

This invention provides a near-infrared high-reflectivity structural color filter and its fabrication method, relating to the field of optical technology. The near-infrared high-reflectivity structural color filter includes a substrate and, sequentially formed on the substrate, a reflective layer, a first dielectric layer, a first absorption layer, a second dielectric layer, a second absorption layer, and an anti-reflective layer. The reflective layer, the first dielectric layer, and the first absorption layer constitute a first optical resonant cavity, and the first absorption layer, the second dielectric layer, and the second absorption layer constitute a second optical resonant cavity. Both the first and second absorption layers exhibit lower absorption rates for visible light within the target color wavelength range than for visible light within the non-target color wavelength range, and their absorption rates for near-infrared light are lower than a preset absorption rate threshold. By employing two continuous asymmetric optical resonant cavities and a top anti-reflective layer, high-purity and high-brightness colors are achieved in the visible light range, and cooling functionality is achieved using the high reflectivity of the near-infrared band. Furthermore, the process is low-cost and simple.

Image sensor pixels and methods for constructing the same. The image sensor pixel includes a first photodetector, a second photodetector, a first spectral router, and a second spectral router. The first spectral router is positioned above the first photodetector and the second photodetector. The first spectral router is configured to direct incident light in a first subset of a first color wavelength range to the first photodetector and direct incident light in a second subset of the first color wavelength range to the second photodetector. The second spectral router is positioned above the first spectral router. The second spectral router is configured to direct the incident light in the first subset and the second subset of the first color wavelength range to the first spectral router. The second spectral router is configured to direct incident light in a second color wavelength range to one or more neighboring image sensor pixels.

To provide an optical inspection apparatus, which is capable of acquiring information regarding an object with illumination of a small number of colors (wavelength spectrum).SOLUTION: An optical inspection apparatus 10 includes an illumination section 20, an imaging section 30, and a processing section 40. The illumination section is configured to irradiate at least an object point of an object with a light beam flux at one or a plurality of solid angles. The processing section causes an object point to be irradiated with the light beam flux at a first solid angle A1 by first illumination light from the illumination section, sets a solid angle not including the first solid angle as a second solid angle A2, and causes a first captured image of an object to be acquired using the imaging section on the basis of illumination by the first illumination light. The processing section sets a solid angle included in the first solid angle as a third solid angle A3, sets a solid angle included in the second solid angle as a fourth solid angle A4, causes an object point to be irradiated with a light beam flux of the third solid angle and the fourth solid angle by second illumination light from the illumination section, causes a second captured image of the object to be acquired using the imaging section on the basis of illumination by the second illumination light, and acquires information of the object on the basis of the first captured image and the second captured image.SELECTED DRAWING: Figure 1

The chromaticity and luminous flux output of a multicolor luminaire with multiple independent wavelength outputs is controlled by a controller that has fewer input channels than there are output channels. A trained neural network is used such that the multi-color wavelength settings of the luminaire produce the specified chromaticity and luminous flux output while optimizing luminous efficacy or color rendering capabilities, or satisfying other constraints applied to the luminaire.

The invention discloses non-conjugated cluster luminescent polyamide as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking amino acid, aldehyde and isonitrile as raw materials, carrying out Ugi polymerization reaction to obtain corresponding non-conjugated cluster luminous polyamide; multi-component regulation is used, space conjugation can be regulated through substituent groups and heteroatom substitution positions, finally, full-light-color wavelength regulation and quantum yield are greatly improved, and the cluster light-emitting polyamide material is a weak-acting-group organic light-emitting material with the potential of being applied to photoelectric devices, biological imaging and light-emitting fibers.

An information handling system may include a configuration detection system to identify different components within the information handling system by scanning one or more fluorescent based-markers on each of the components. A fluorescent based-marker is a labeling convention or a product code that uses a fluorescent dye on a barcode line, serial number, model number, fiducal marker, etc. to emit or reflect a different color wavelength when excited by an ultra-violet (UV) light. By using a preconfigured mapping table, the configuration detection system can determine one or more colors that correspond to the scanned fluorescent based-markers. The determined color or a combination of the determined colors can be used to identify each of the components in the information handling system.

Image sensor pixel and method of manufacturing the same. The image sensor pixel includes a first photodetector, a second photodetector, a first spectral router, and a second spectral router. The first spectral router is positioned over the first photodetector and the second photodetector. The first spectral router is configured to direct incident light in a first subset of a first color wavelength range to the first photodetector and to direct incident light in a second subset of the first color wavelength range to the second photodetector. The second spectral router is positioned over the first spectral router. The second spectral router is configured to direct the incident light in the first subset and the second subset of the first color wavelength range to the first spectral router.The second spectral router is configured to direct incident light in a second color wavelength range to one or more adjacent image sensor pixels.

The invention relates to nanophoton hyperspectral imaging. Image sensor pixels and methods of construction thereof are provided. The image sensor pixel includes a first photodetector, a second photodetector, a first spectral router, and a second spectral router. The first spectral router is positioned over the first photodetector and the second photodetector. The first spectral router is configured to direct incident light in a first subset of a first color wavelength range to the first photodetector and incident light in a second subset of the first color wavelength range to the second photodetector. The second spectral router is positioned above the first spectral router. The second spectral router is configured to direct the incident light in the first subset and the second subset of the first color wavelength range to the first spectral router. The second spectral router is configured to direct incident light in a second color wavelength range to one or more adjacent image sensor pixels.

The invention relates to an image sensor with integrated visible and infrared pixels. The invention provides an image sensor, an imaging system and a method for constructing the image sensor. The image sensor includes an array of pixels. The pixel array includes a first photosensitive region, a second photosensitive region, a spectral router, and a spectral filter. The first photosensitive region is configured to detect visible light in a color wavelength range. The second photosensitive region includes a plurality of light scattering structures. The second photosensitive region is configured to detect infrared light. A spectral router is positioned over at least a first photosensitive area. The spectral router is configured to route visible light within the color wavelength range to the first photosensitive region. The spectral router is further configured to route the infrared light to the second photosensitive area. A spectral filter is positioned over the spectral router. The spectral filter is configured to block visible light outside the color wavelength range.

A technology is described for a system for identifying a colorimetric test result from a target nucleotide test performed on a solid phase substrate. The system can comprise a sensor configured to detect a spectrum of color wavelengths. The system can comprise one or more processors. The one or more processors can be configured to: receive color wavelength data; determine a wavelength threshold for providing a target nucleotide positive test result; identify whether the color wavelength data meets or exceeds the wavelength threshold for providing a target nucleotide positive test result; and generate a result indicator indicating either a target nucleotide positive or target nucleotide negative test result.

A virtual reality (VR) system can be implemented for testing and recommending adaptive eyewear for color blindness. The system can use an electronic device featuring a head-mounted display (HMD) and eye-tracking sensors. The system can generate a VR user interface that creates a three-dimensional virtual environment, rendered on the HMD. Within this virtual space, the system can simulate a variety of color wavelength tasks. As users engage with these tasks, the eye-tracking sensors can continuously monitor responses to the simulated tasks. The system can then analyze the tracked data for color perception performance and recommend adaptive eyewear for color blindness.

The utility model discloses a Fresnel lens curtain, and aims to overcome the defect that contradiction exists between the anti-light effect and the screen brightness of the conventional Fresnel curtain. The utility model sequentially comprises an outer layer, a micro-structure layer, a Fresnel lens layer and a reflecting layer, a base film layer is arranged among the outer layer, the micro-structure layer and the Fresnel lens layer, the micro-structure layer is attached to the upper base film layer through an attaching adhesive layer, the top surface of the micro-structure layer is in a continuous peak shape, a light absorber is arranged in the attaching adhesive layer, and the reflecting layer is arranged between the outer layer and the micro-structure layer. The attaching adhesive layer can absorb light except for the three-primary-color wavelength. The horizontal visual angle of the Fresnel lens is increased through the microstructure layer, and light rays except for three primary colors generated by a light source of laser projection are absorbed by the fitting adhesive layer, so that the light resistance is improved.

A system and methodology are provided for using a pulse oximeter to monitor a patient's blood flow trends over extended periods of time. For this purpose, changes in oxygen saturation levels which result in infrared color wavelength changes are detected by a pulse oximeter and then compared directly to a base infrared wavelength which was previously correlated with a systolic pressure taken by a sphygmomanometer. Thus, infrared color changes in the patient's blood pressure pulse are used to monitor trends in the patient's blood flow. A correlation factor is established which correlates a predetermined difference between wavelength colors detected by the pulse oximeter with blood pressure measurements taken by a sphygmomanometer. Variations of this correlation factor can then be subsequently monitored independently by the pulse oximeter and compared relative to previously established parameters for blood flow.