130 results about "Color wheel" patented technology

Embodiments of the present application relate to the technical field of image recognition, and disclose a color band resistor color extraction method and apparatus, a device, and a medium, which solve the technical problem in the prior art of poor precision of color band resistor color detection. The color band resistor color extraction method comprises: acquiring an RGB color image of a target color band resistor; acquiring an LAB color image on the basis of the RGB color image; performing transformation processing on an LAB value corresponding to each color type of the color band resistor to acquire a color extraction threshold; and performing color extraction processing on the LAB color image on the basis of the color extraction threshold. The method of the present application effectively improves the precision of color band resistor color detection.

The invention discloses a gait analysis method, system and equipment. The method comprises the following steps: acquiring a pressure value of each measuring point in a sole area in real time when a tested person stands or walks; generating a pressure distribution map and a change curve map based on the acquired pressure values; gait-related parameters are calculated and an electronic report is generated. In order to improve image visibility and analysis precision, a perceptual disturbance guided multi-scale color coding mechanism is adopted, and a high-resolution and vision enhanced pressure distribution diagram is generated through the steps of interpolation expansion, normalization, disturbance enhancement, HSV color wheel mapping and the like. The system also supports two analysis modes of balanced standing and dynamic walking, can output multi-dimensional gait indexes including pressure parameters, gait cycle parameters, pressure center tracks and the like, is matched with a built-in high-density sensor array and a man-machine interaction module of the system, is widely suitable for scenes of rehabilitation medical treatment, sports science, old-age health management and the like, and has wide application prospects. The method has the advantages of high detection precision, visual result, comprehensive analysis and the like.

The utility model provides a color wheel heat dissipation device and a projection light source, a color wheel is provided with a peripheral surface and a light inlet surface and a light outlet surface which are oppositely arranged, the peripheral surface is connected with the light inlet surface and the light outlet surface to jointly define the color wheel, and the color wheel heat dissipation device comprises a light machine shell, a shell extension boss, a heat conduction metal ring and an annular cooler; the color wheel is rotationally connected with the light machine shell and is positioned in the heat-conducting metal ring; the shell extension boss is arranged on the inner wall of the ray machine shell; the heat-conducting metal ring and the annular cooler surround the peripheral surface; the annular cooler is located between the heat conduction metal ring and the shell extending boss. The projection light source comprises a color wheel and a color wheel heat dissipation device arranged around the color wheel. According to the color wheel, the heat conduction metal ring is located between the annular cooler and the color wheel, the heat conduction metal ring is in a relatively low-temperature state, high-temperature turbulent flow formed by rotation of the color wheel can still have the large flow speed near the heat conduction metal ring, distribution is uniform, the turbulent flow can fully exchange heat with the heat conduction metal ring, and the heat dissipation effect of the color wheel is improved.

This invention relates to a vision simulation method, system and device based on flight conditions, which provides a more natural and continuous vision switching effect and enhances the realism of the simulated flight. [Solution] The method includes obtaining simulation parameters for the current simulated flight, including flight time, visibility parameters in the simulated environment, and the attenuation rate of the projector; dividing the flight time into multiple sections, and calculating and obtaining the brightness percentage to be projected by the projector in different sections based on the different sections in combination with the visibility parameters and the attenuation rate; controlling the brightness percentage of the projected vision of the projector and tuning the color configuration parameters of the color wheel based on the flight state, thereby realizing the simulation of the flight state and vision.

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.

The embodiment of the invention belongs to the technical field of display, and provides laser projection equipment and a control method, a first sensor in the laser projection equipment detects the rotating speed of a fluorescent wheel, and transmits a first rotating speed signal to a display control unit through a first transmission line; the second sensor detects the rotating speed of the color filter wheel and transmits a second rotating speed signal to the display control unit through the second transmission line; the first transmission line and the second transmission line are wrapped with metal conductors, and the metal conductors form a shielding layer for shielding electromagnetic interference. The display control unit controls the fluorescent wheel to rotate at a first rotating speed and the color filter wheel to rotate at a second rotating speed according to a to-be-displayed image signal, the first rotating speed signal and the second rotating speed signal, and sends a first driving signal to the laser light source; the laser light source emits a light beam to the color wheel system according to the first driving signal. Therefore, the occurrence of projection display abnormity can be reduced, and the user experience is improved.

The present application relates to a light source device and a projection display device. In a light source device in which fluorescent light and a part of blue light emitted from a semiconductor laser are output, a light source device in which the device does not excessively increase in size is sought. The light source device includes: a laser light source that outputs light in a predetermined wavelength region; a first dichroic mirror and a second dichroic mirror that have a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and are disposed on an optical axis of the laser light source; a first condensing optical system; a fluorescent color wheel that has a fluorescent light region that emits fluorescent light and a reflection region; a fourth dichroic mirror that has a characteristic of reflecting fluorescent light; a third dichroic mirror that has a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and is disposed so that an optical axis of the reflected light in the predetermined wavelength region coincides with an optical axis of the fluorescent light reflected by the fourth dichroic mirror; a second condensing optical system; and a light color selection color wheel that has a color filter and a diffusion portion.

The invention provides a space target detection imaging device under a complex starry sky background, which includes a signal transmitter and a received signal decoupling component. It is characterized in that the signal transmitter is a laser light source, an achromatic wave plate, and a linear polarizer arranged coaxially in sequence. The received signal decoupling component includes a signal receiving control box and a computer. A reflector is arranged inside the signal receiving control box. A first beam splitter, a collimating lens group, and a second beam splitter are arranged coaxially in sequence on the right side of the reflector. A first CMOS camera is arranged at a position corresponding to the first beam splitter. A third beam splitter is arranged at a position parallel to the second beam splitter. A color wheel mechanism is arranged at a corresponding position on the right side of the second beam splitter and the third beam splitter. A second CMOS camera and a third CMOS camera are respectively arranged at corresponding positions on the right side of the color wheel mechanism and the second beam splitter and the third beam splitter. The second CMOS camera and the third CMOS camera are controlled by a CMOS driving circuit, and the CMOS driving circuit is connected to the computer. By organically combining the brightness information, spectral information, polarization information, and orbital information of light, the target recognition detection probability, success rate, and accuracy are effectively improved.

The utility model discloses a wavelength conversion wheel, comprising a substrate, which comprises a first surface and a second surface arranged opposite to the first surface; the wavelength conversion area is located on the first surface of the substrate, and the wavelength conversion area comprises a wavelength conversion layer; the metal heat dissipation layer is at least arranged on one surface of the substrate, a plurality of heat dissipation holes are randomly formed in the metal heat dissipation layer, and at least the plurality of heat dissipation holes exchange heat with the outside. According to the wavelength conversion wheel, the metal with the heat dissipation holes is adopted as the metal in the metal heat dissipation layer, compared with a traditional metal heat dissipation fin, the metal heat dissipation layer with the heat dissipation holes is lighter in mass, the load of the wavelength conversion wheel can be effectively reduced, the stability of the wavelength conversion wheel is improved, and the service life of the wavelength conversion wheel is prolonged. Meanwhile, the heat dissipation effect of the metal heat dissipation layer with the heat dissipation holes is better than that of a traditional metal heat dissipation sheet, the temperature of the fluorescent color wheel can be effectively reduced, and the wavelength conversion efficiency of the fluorescent color wheel is improved.

The invention discloses a non-contact iron object positioning detection and marking system, which is particularly suitable for a building template embedded nut positioning scene. The system transmits an alternating magnetic field through the electromagnetic induction module to penetrate through a non-metal obstacle (such as a wood board), detects an eddy current effect generated by an iron object (such as a pre-embedded nut) and outputs a 0-10V voltage signal; the central processing unit locks the geometric center position of the object according to the minimum voltage value, and realizes multi-mode feedback through visual color circle zooming, buzzing frequency change and threshold alarm; and after the user triggers the marking key, the execution module automatically performs annular mark marking at the position of the central point. According to the scheme, the problems of penetrability accurate positioning and automatic marking of hidden iron objects are solved, and the construction efficiency and safety are remarkably improved.

The invention discloses an ophthalmology department preoperative auxiliary examination device which comprises a control table and a slit lamp, a bearing mechanism is connected to the control table, a protection mechanism comprises a mounting strip and a rotating assembly, a winding roller and a non-woven fabric roll are mounted on the mounting strip through the rotating assembly, a guide mechanism is connected to a bearing frame, and the guide mechanism is connected to a guide rod. The guide block is connected with a guide assembly used for assisting the color disc. According to the ophthalmology preoperative auxiliary examination device, the bearing frame is pulled downwards, the ophthalmology preoperative auxiliary examination device is suitable for different crowds, the bearing frame is held by a hand, the input feeling of a patient can be improved, the detection effect is guaranteed, the forehead and the jaw are attached to a non-woven fabric roll on a rubber roller for detection, after detection is completed, used non-woven fabric is automatically rolled, and the detection efficiency is improved. When the non-woven fabric section is used by the next person, the non-woven fabric section is not used, so that disease infection is avoided, the patient can see the through groove and the correction sight of the color disc, the distinguishing blocks in different color areas are different, and the concentration degree can be trained.

The application provides a light source structure, which comprises a laser light source, a color wheel, a first guide component and a second guide component, and the laser light source is used for emitting excitation light. The color wheel comprises an inner ring and an outer ring which are concentrically arranged, the inner ring comprises a light conversion area which generates stimulated light under the excitation of the excitation light, and the outer ring comprises a first guide area and a second guide area, and the first guide area and the second guide area are both used for guiding the excitation light emitted by the laser light source. The first guide component is used for guiding the excitation light emitted from the first guide area to exit along an exit light path. The second guide component is used for guiding the excitation light emitted from the second guide area to the light conversion area, and is also used for guiding the stimulated light emitted from the light conversion area to the exit light path. The light source structure provided by the application has less optical elements through which the excitation light passes, reduces energy loss, and improves the optical utilization rate of the light source structure. The application further provides a color wheel and a projection device.

The invention provides an imaging module with a color wheel. The imaging module comprises an image sensor, a lens group, the color wheel, an anti-dazzling screen and a driving element. The lens group is arranged above the image sensor, and the color wheel is arranged above the lens group and comprises a plurality of optical filters with different filtering wave bands. The anti-dazzling screen is arranged above the color wheel and provided with a notch, and part of the optical filters are exposed out of the notch. The driving element is used for driving at least one of the color wheel and the anti-dazzling screen to rotate.

The present invention provides an assembled wavelength conversion device, which includes a refrigeration box, a fan, a cylinder body, a first end cover and a transparent second end cover. A closed space is formed among the first end cover, the second end cover and the cylinder body. A clamping cavity is arranged inside the cylinder wall of the cylinder body, and a plurality of air outlet holes communicated with the clamping cavity are arranged on the inner side wall of the cylinder body; A ring body is arranged inside the first end cover, and an annular channel is formed between the ring body and the inner side wall of the first end cover, and the annular channel is communicated with the clamping cavity; A exhaust pipe is communicated in the middle of the end face of the first end cover, and the exhaust pipe is communicated with an extraction pipe through a rotary joint. The other end of the extraction pipe is connected with a fluorescent color wheel, and the fluorescent color wheel is driven by a motor. Suction holes are arranged on the side wall of the extraction pipe; An air inlet pipe communicated with the annular channel is arranged on the outer end face of the first end cover; The fan, the refrigeration box, the clamping cavity and the closed space form a circulating air duct; It has an assembled structure, which is convenient for disassembly and assembly, convenient for the maintenance or replacement of internal parts, and can dissipate heat from internal components, prolonging the service life of the equipment.

1. Name of the product in this design: Bag Wheels (Tricolor Wheels). 2. Purpose of this design: To serve as wheels to support the sliding of bags and luggage. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D rendering 2.

The utility model discloses a color wheel adjusting assembly and lighting equipment, the color wheel adjusting assembly comprises a color wheel, a driving assembly and a position detection assembly, the driving assembly comprises a motor, a first transmission part and a second transmission part, the second transmission part is in transmission connection with the first transmission part, and the color wheel is connected to the second transmission part; the motor is used for driving the first transmission part to rotate, and the second transmission part is used for transmitting when the first transmission part rotates and guiding the color wheel to do linear motion; the position detection assembly comprises a detection piece and an inductor, the detection piece is connected with the color wheel or the second transmission piece and used for detecting the position of the color wheel, and the inductor is connected with the detection piece through an electric signal. The color wheel adjusting assembly can automatically adjust the position of the color wheel on the plane perpendicular to the optical axis of the laser light source, so that the optical axis passes through the corresponding color temperature compensation area on the color wheel, and corresponding color temperature compensation is automatically carried out on the laser light source under the condition of different powers.

The present application relates to the field of microscope optical detection and intelligent identification technology, and particularly relates to a microscope objective automatic identification system and method, the system comprising: a microscope objective, a color ring encoding disc is arranged on the back end surface of the microscope objective; a coaxial optical fiber, one end of the coaxial optical fiber is directed to the color ring encoding disc, and the other end of the coaxial optical fiber is connected to a color identification sensor, the coaxial optical fiber is used for transmitting illumination light to the color ring encoding disc of the microscope objective, and acquiring a reflected light signal carrying color information; the color identification sensor is used for acquiring the reflected light signal and converting the reflected light signal into RGB color data; a master control unit is used for receiving the RGB color data, and decoding and identifying parameter information of the microscope objective according to a pre-stored color ring encoding and objective parameter mapping table. The present application solves the problems of high cost, single identification dimension, poor generalization of modification and short service life of the identification mode of the microscope objective in the prior art.

The invention provides an intelligent DLP seamless large-screen dynamic adaptive adjustment system, and relates to the technical field of DLP large-screen dynamic adaptive adjustment, and the system comprises a precision sensing unit, a heterogeneous calculation module, a dynamic compensation execution mechanism and a self-diagnosis subsystem. Optical, mechanical and environmental data are collected in real time through a backside illuminated CMOS sensor array, a dual-wavelength infrared photoelectric encoder and a distributed temperature sensor which are coaxially mounted; using an edge detection-optical flow fusion processor to identify the rainbow pattern, and combining with a time frequency feature extractor to quantify the stroboscopic intensity perceived by the human eyes; dynamic adaptive adjustment is realized through color wheel harmonic drive, LED nonlinear modulation and DMD time sequence compensation. The system integrates fault mode matching and a multi-objective optimization algorithm, the problems of rainbow lines, stroboscopic lag, chromatic aberration deviation and environmental interference of a traditional DLP system are effectively solved, and the display consistency and the user experience are remarkably improved.

A projector and a color wheel module thereof are provided. The color wheel module includes a fixing member, a base, a moving part, a locking member and a vibration-absorbing pad. The fixing member includes an axial hole and a through hole. The moving part is arranged on the base and rotates around an axial direction, and the axial direction passes through the axial hole. The locking member passes through the through hole, one end of the locking member is fixed to the base, and the base is fixed to the fixing member through the locking member. The vibration-absorbing pad is arranged on one side of the fixing member corresponding to the base and in the through hole, and the vibration-absorbing pad separates the locking member from the corresponding fixing member and separates the fixing member from the corresponding base.

A color wheel according to an embodiment of the present invention comprises: a basic fluorescent body having a basic light-emitting wavelength; and at least one modified fluorescent body having at least one light-emitting wavelength different from the basic light-emitting wavelength, wherein the basic fluorescent body comprises Y3Al5O12 and the modified fluorescent body comprises Y3(GaxAl(1-x))5O12:Ce in which gallium is doped on the basic fluorescent body.

The invention discloses a light source device and an optical system, the light source device comprises a first laser light source used for generating first laser and second laser, a light combination part, a fluorescent module and a light guide module, and the light combination part is used for guiding the first laser and the second laser to the fluorescent module. The fluorescent module comprises a collecting lens assembly and a color wheel which are sequentially arranged on light paths where the first laser and the second laser are located, and the color wheel comprises a first fluorescent ring and a second fluorescent ring which are concentrically arranged. And first fluorescent light generated by the first fluorescent ring and second fluorescent light generated by the second fluorescent ring are reflected by the color wheel and transmitted by the collecting lens assembly in sequence and then enter the light combining piece. The light guiding module is arranged between the first laser light source and the light combining piece and used for adjusting the optical axis of the laser incident to the light guiding module. Due to the fact that the color wheel is of the multi-ring-shaped structure with different colors, synchronization is not needed when the color wheel starts to rotate, and the starting speed of the light source device is increased.

The present disclosure provides a laser lighting system. The laser lighting system includes a microcontroller, a motor, a fluorescent color wheel, and a detection circuit. The motor drives the fluorescent color wheel to rotate. The detection circuit detects a detection signal from the fluorescent color wheel. When a synchronization signal changes, the microcontroller compares the synchronization signal and the detection signal, and controls a current output signal for driving the motor, thereby reducing a phase change of the detection signal and the synchronization signal until a phase difference between the detection signal and the synchronization signal is maintained at a constant value.

The utility model provides a lighting device and a vehicle. The lighting device comprises: at least one light source for emitting at least one lighting light; the fly's-eye lens is located on an emergent light path of the at least one light source, and the fly's-eye lens comprises a micro-lens array area formed by a plurality of convex micro-lenses and a peripheral area surrounding the micro-lens array area; the light spot coverage area of the illumination light covers the micro-lens array area to form light rays distributed on a first surface at the color wheel, the illumination uniformity of the light rays distributed on the first surface is greater than a first threshold value, and the light rays distributed on the first surface are emitted through the lens to form a first light beam; light rays distributed on a second surface are formed at the color wheel after the light spot coverage area of the illumination light covers the micro-lens array area and the peripheral area, the ratio of the illuminance of the center position of the light rays distributed on the second surface to the illuminance of the peripheral position is larger than a second threshold value, and the light rays distributed on the second surface penetrate through the lens to be emitted to form a second light beam.

The invention discloses a color wheel device and a light-emitting device. The color wheel device comprises a substrate and a wavelength conversion layer arranged on the surface of one side of the substrate. The first optical filter is located on the side, provided with the wavelength conversion layer, of the substrate; an air gap is formed between the first optical filter and the wavelength conversion layer; the driving assembly is connected with the substrate and the first optical filter; the turbulent flow assembly is arranged on the driving assembly between the substrate and the first optical filter and is surrounded by the wavelength conversion layer; when the driving assembly is excited, the substrate, the wavelength conversion layer, the first optical filter and the turbulent flow assembly are driven to rotate, and when the turbulent flow assembly rotates, airflow on the inner side of the wavelength conversion layer is disturbed so as to dissipate heat of the wavelength conversion layer. The heat dissipation capability of the wavelength conversion layer can be improved, so that the heat dissipation requirement of the wavelength conversion layer is met, and the luminous efficiency and reliability of the wavelength conversion layer are effectively improved.

This invention relates to the field of color ring component inspection, specifically to a machine vision-based color ring component appearance inspection device and system. The machine vision-based color ring component appearance inspection device includes: a wavelength range adjustment module, a significant score calculation module, a detection wavelength selection module, and an appearance inspection module. This invention achieves dynamic optimization of the detection light source wavelength by integrating the calculation of the primary color wavelength of the color ring component with surface roughness modeling; simultaneously, it introduces a surface roughness evaluation factor to correct the minimum allowable detection wavelength to avoid high reflectivity interference; this mechanism can dynamically adapt to batch differences, improve the contrast between defects and background, and significantly reduce the false negative rate; based on this, the system calculates a risk index and prioritizes the wavelength with the highest sensitivity to high-risk defects; while ensuring controllable light source costs, it achieves multi-dimensional adaptive matching between the detection wavelength and component characteristics and defect risk.

1. Name of the designed product: model (alloy air cell powered spin color wheel). 2. Use of the designed product: for toy model. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

A method of providing visibility of foreground elements on a display includes 1) providing a circular RGB hsl hue color wheel having a plurality of colors and numerical angular indicators, 2) constructing a matrix having a maximum color component and a minimum color component, 3) determining each pixel of a display and map the pixel to the matrix to determine a background hue, 4) determining two secondary hues that are different than the background hue, and 5) setting the foreground hue based on the two secondary hues.

The present invention relates to the field of medical device design technology, and in particular to a color design method and system for a medical clip applier. The method comprises: acquiring surgical environment information and instrument application functions by collecting application scenario information, and based on the surgical environment information and instrument application functions, determining the selection range of color wheel templates by constructing a color wheel, and performing color sorting to generate application environment gradient color levels and instrument design gradient color levels, and generating a number of standby color groups based on the application environment gradient color levels and the instrument design gradient color levels, performing visual inspection and analysis based on the number of executed color groups, and acquiring a color design scheme for the clip applier. Through the present invention, the influence of surgical environment conditions and surgical site conditions on instrument visibility is effectively solved, and by accurately selecting colors based on surgical environment information and instrument function requirements, surgical efficiency is effectively improved and surgical risks are greatly reduced.

The utility model discloses a fluorescent color wheel with an alignment structure, which comprises an inner ring provided with an inner edge and an outer edge, and the inner edge of the inner ring is connected with a driving mechanism; the inner ring comprises a first surface and a second surface, and at least two inner ring areas are arranged on the first surface of the inner ring; the outer ring is provided with an inner edge and an outer edge, and the inner edge of the outer ring is fixedly connected with the outer edge of the inner ring; the outer ring comprises a first surface and a second surface, and at least two outer ring areas are arranged on the first surface of the outer ring; the alignment structure is located at the inner edge of the outer ring, and a junction is formed between every two adjacent inner ring areas on the first surface of the inner ring and is aligned with the alignment structure. The alignment groove is formed in the outer ring, and only the gap connecting position to be aligned on the inner ring needs to be aligned with the alignment groove; therefore, the assembly efficiency is improved to a great extent, and the production cost is reduced.

A method of driving a display device including a variable wavelength LED is provided. The variable wavelength LED is one of a pixel of the device or a plurality of sub-pixels of a pixel of the device, and the display device is programmed to operate using a palette that emits a wavelength [lambda] P using N available primary colors, where each of the N available primary colors is a wavelength that can be emitted by the variable wavelength LED. The variable wavelength LED may be driven in response to N respective sub-fields of a driving condition while emitting light at any of the N available primary color emission wavelengths [lambda] P. The method comprises the steps of: identifying an output signal to be displayed by a pixel or sub-pixel of the display device during a display frame; selecting a pair of two available primary color emission wavelengths of the N available primary color emission wavelengths that can be combined to form the output signal; and driving the pixel or sub-pixel to emit light at the two selected primary color emission wavelengths during two sub-frames within the display frame such that the light emitted at the two selected primary color emission wavelengths during the display frame combines to form the output signal having an output chroma and an output brightness (LO). A method of calibrating the display device comprises the steps of: selecting a pair of two discrete primary color emission wavelengths [lambda] P, each primary color emission wavelength [lambda] P corresponding to a respective sub-field of a driving condition; for the two selected primary color emission wavelengths, calculating respective lightness summed as the standard light source point; and controlling the durations of the respective duty cycles of the two sub-fields driving the two selected primary color emission wavelengths such that the selected primary color emission wavelengths [lambda] P and lightness of the two selected primary color emission wavelength sub-fields are complementary and the sum is a standard light source point.