15results about How to "Uniform light distribution" patented technology

The invention relates to a light control method and system based on a holographic interactive projection technology, and the method comprises the steps: projection region recognition, user interaction detection, light parameter calculation and light real-time regulation and control, the projection region recognition, scanning of a target region through a holographic projection device and a depth induction sensor, and generation of a three-dimensional space model of an environment; a motion capture device and a deep learning algorithm are used for carrying out real-time recognition on gestures or motions of a user, interaction intentions and priority ranking are generated, a holographic projection device is used for generating a three-dimensional environment model, the motion capture device recognizes the intentions of the user, and an illumination optimization model is used for calculating regulation and control parameters; and the output of the light equipment is dynamically adjusted, so that high-precision and intelligent light control is realized, and the problems that a traditional light control method is insufficient in environment perception capability, lacks a user interaction mode, is limited in flexibility and adaptability of light regulation and control, and lacks a multi-module cooperative working mechanism are solved.

The utility model discloses a multi-angle light supplementing court lamp, and particularly relates to the field of projection lamps, the multi-angle light supplementing court lamp comprises a plurality of heat dissipation plates, the tops of the plurality of heat dissipation plates are all provided with PCB lamp panels, the tops of the plurality of PCB lamp panels are all provided with waterproof lenses, the two sides of the plurality of heat dissipation plates are jointly provided with side edge fixing supports, and the bottoms of the two side edge fixing supports are jointly provided with an installation handle. Adjusting assemblies are arranged at the joints of the mounting handles and the side edge fixing supports and used for adjusting the angle of the PCB lamp panel. The adjusting assembly comprises dial fixing discs arranged on one sides of the two side edge fixing supports, direction adjusting dials are arranged on one sides of the two dial fixing discs, inserting grooves are formed in the surfaces of the two direction adjusting dials, and one end of the installation handle is located in the inserting grooves and detachably connected with the direction adjusting dials. According to the PCB lamp panel adjusting device, the whole device can be prevented from being disassembled and adjusted, and the adjusting efficiency of the PCB lamp panel can be improved.

The neon lamp strip comprises a light-emitting assembly, a first rectangular transparent silica gel sleeve, a rectangular diffusion silica gel sleeve and a second rectangular transparent silica gel sleeve. The light-emitting assembly comprises a first FPC board and a second FPC board. A plurality of first lamp beads arrayed in the length direction of the first FPC board are arranged on the upper surface of the first FPC board, and a plurality of second lamp beads arrayed in the length direction of the second FPC board are arranged on the lower surface of the second FPC board. The first lamp beads and the second lamp beads are distributed in an up-down staggered mode. Four diffusion silica gel sheets which are distributed in a matrix are embedded in the tube wall of the first rectangular transparent silica gel sleeve; wherein two of the diffusion silica gel sheets are obliquely arranged, and the inclined surfaces of the diffusion silica gel sheets face the first lamp bead, and the other two diffusion silica gel sheets are obliquely arranged, and the inclined surfaces of the diffusion silica gel sheets face the second lamp bead. The neon lamp strip can emit light from four sides and can effectively reduce the area of a dark area, so that the neon lamp strip is uniform in brightness from four sides, and the light-emitting effect is effectively improved.

The utility model relates to display equipment technical field especially LED packaging structure and display device, LED packaging structure includes wiring layer, with the LED chip of wiring layer electricity connection, the filling layer that sets up around LED chip, set up in the sapphire layer that LED chip far away from wiring layer one side and LED chip are pasted, LED packaging structure still includes the fluorescent layer that sets up around filling layer and sapphire layer, fluorescent layer sets up around filling layer and sapphire layer, realizes spectrum conversion, when the blue light that LED chip emits irradiates on fluorescent layer, fluorescent layer absorbs part blue light and emits other color light, and the white light that mixes with blue light is obtained to realize MIP white light product, make the light that emits from LED packaging structure more uniform, improve illumination quality and visual comfort.

The present invention relates to a lamp, comprising: a matrix of controllable light sources; a control unit connected to the light sources; a translucent decorative layer, the decorative layer having an incident surface and a lamp surface, so that light falling on the incident surface with an incident light density distribution reaches the lamp surface so as to be emitted with an exit light density distribution with respect to the lamp surface, wherein the decorative layer has a transmittance that varies depending on the position of the lamp surface, and the transmittance has at least one or more at least local transmittance minima along a first curve located in the lamp surface, wherein the control unit is formed to control the light source so that the incident light density distribution has one or more at least local incident light density maxima along a second curve located in the incident surface, the second curve is associated with the first curve due to optical coupling, and the one or more at least local incident light density maxima are respectively associated with one of the transmittance minima due to the optical coupling between the incident surface and the lamp surface.

This invention discloses a novel foldable backlight system suitable for head-up display (HUD) systems, comprising: a lamp panel assembly; a collimating lens for collimating white light emitted from LED beads; a spherical reflector for reflecting and shaping the collimated light; a beam expander for diffusing and homogenizing transmitted light; and an S-polarizing filter for filtering P-polarized light within the backlight. The light path is as follows: white light emitted from the lamp panel assembly passes through the collimating lens, is projected onto the spherical reflector, reflected by the beam expander, transmitted through the S-polarizing filter, and finally illuminates a 4.1-inch TFT screen. This invention also discloses a motor vehicle incorporating the above-described novel foldable backlight system, and a backlight display method. The HUD backlight system of this invention has the advantages of reducing surface heat of the TFT screen and minimizing the size of the PGU (Power Gear Unit).

The invention relates to the technical field of searchlights, in particular to a handheld multifunctional searchlight which comprises a base, a holding part and a head, the holding part is mounted on the base, a lamp holder, a bulb and a glass cover are mounted at the head, a reflection cup is mounted at the front end of the lamp holder, a driving mechanism is mounted between the holding part and the head, and the driving mechanism is mounted on the base. Adjusting plates are installed in the reflection cup, switching mechanisms are installed at the positions of the adjusting plates, the driving mechanism drives the adjusting plates to change the irradiation range, when the ends of the adjusting plates move towards the light source, the switching mechanisms are driven to reduce the distance between the adjusting plates, and the irradiation angle of the light source is controlled by changing the holding distance of the handle. Further, the appropriate irradiation range and illumination intensity of the searchlight under different conditions are formed by utilizing the reflection optical principle.

The present application belongs to the technical field of image processing, and in particular to a multi-scale attention weak light image enhancement method and system. The present application comprises the following steps: step 1, constructing a network model: constructing a multi-scale attention weak light image enhancement network model, which comprises a decomposition network, a reflection image restoration network, and an illumination image enhancement network; step 2, preparing a data set: using the LOL-v1 data set to divide the training set and the test set and to perform preprocessing; using the LOL-v2 data set to fine-tune the model; step 3, training the network model: inputting the LOL-v1 data into the network for training until the preset training number or the loss function reaches the standard step; step 4, fine-tuning the model: using the second weak light image data set to further train and fine-tune the network model; and step 5, saving the model: solidifying and saving the final model parameters to realize the conversion output of weak light images into high-quality images. The present application designs an efficient multi-scale attention enhancement network for improving the performance of image features. This method can significantly improve the quality and clarity of the image, making the illumination and reflection details more distinct.

The invention relates to a large-bandwidth integrated optical beam splitter based on a sub-wavelength grating and a preparation method of the large-bandwidth integrated optical beam splitter, and belongs to the technical field of integrated photonic devices and semiconductors. The large-bandwidth integrated optical beam splitter comprises a substrate, a first cladding, a waveguide layer, a glass layer and a second cladding, the substrate, the first cladding, the waveguide layer, the glass layer and the second cladding are sequentially arranged from bottom to top, the waveguide layer is arranged in the glass layer, and the waveguide layer is connected with the upper surface of the first cladding; the optical beam splitter provided by the invention can achieve the effects of low insertion loss, uniform light splitting and low phase error in a large bandwidth range; the gaps in the grating structure of the waveguide layer can be stably filled by the glass layer formed by spin-coating the glass reagent, air gaps are prevented from occurring when the gaps in the grating structure are filled, the manufacturing reliability of the beam splitter is improved, and the optical beam splitter can be suitable for large-scale optical calculation and optical interconnection scenes.

The invention provides black light-transmitting halogen-free flame-retardant reinforced nylon as well as a preparation method and application thereof, the black light-transmitting halogen-free flame-retardant reinforced nylon comprises the following raw materials in percentage by weight: 30-50% of polymethyl methacrylate resin, 10-30% of glass fiber, 10-30% of a halogen-free flame retardant compound, 1-3% of an antioxidant and 1-3% of light-transmitting toner. The dispersion and the light transmission of the toner are improved by the organic silicon light diffusant and the active copolymer, and the nylon material prepared by combining the components has good light transmission, uniform light distribution and electric leakage resistance.

The utility model relates to the technical field of illumination, and particularly discloses an illumination assembly and a barbecue oven and a light distribution piece thereof, the illumination assembly comprises a first end part and a second end part, the first end part is arranged in a target area, the second end part is communicated with the first end part, and the second end part is arranged at a position far away from the target area; and the light-emitting part is arranged at the second end part, the light-emitting part is used for emitting light towards the second end part of the light distribution part, and light rays irradiate the target area through the second end part. According to the utility model, through the combination of the light distribution piece and the light-emitting piece, the effect that a light-emitting source is far away from a severe environment is realized, through the combination of the light distribution piece and the LED lamp source, the effect of uniform light distribution is realized, and meanwhile, light rays can be smoothly guided out to illuminate a target area by utilizing the light uniformizing plate arranged on the barbecue oven.

The present invention discloses an intelligent light-chasing lighting control method and system for human body shaping and action, including a base, wherein the upper end of the base is rotatably connected to a rotating frame, the rotating frame is internally rotatably connected to a stage energy-saving lamp, an electric push rod A is installed in the inner groove of the rotating frame, the side end of the stage energy-saving lamp is rotatably connected to a rotating table, the bottom of the rotating table is connected to the protruding end of the electric push rod A, and the end of the stage energy-saving lamp is installed with an outer cover shell and an inner cover shell. The present invention, through the provision of a light-transmitting plate, a connecting rod, a reflective plate and a light source reflection control mechanism, can adjust the curvature of the light-transmitting plate according to the distance of the performers from the light, and the reflection inside the light can be controlled by changing the curvature of the light-transmitting plate, so that the light can be gathered when it is far away from the stage personnel, and can be diffused when the performers are close to the light, so as to improve the light effect and shaping.

The invention discloses a COB light source and a manufacturing method thereof. A BT insulating layer is laid on an aluminum substrate, and square mirror aluminum is laid in the middle area of the BT insulating layer; the copper foil layers with the same thickness as the mirror aluminum are laid on the BT insulating layer and located on the two sides of the mirror aluminum. A positive electrode pad area and a positive electrode wire area are arranged on the copper foil layer on one side, and a negative electrode pad area and a negative electrode wire area are arranged on the copper foil layer on the other side; a plurality of LED wafers are fixed on the mirror surface aluminum, and all the LED wafers are connected through bonding wires to form an LED wafer group; the negative electrode of the wafer group is connected with the negative electrode wire area through a bonding wire, and the positive electrode is connected with the positive electrode wire area through a bonding wire; all the LED wafers, the positive electrode wire area and the negative electrode wire area are surrounded in an annular box dam by the box dam glue by taking the center of the mirror surface aluminum as the circle center; and the fluorescent glue is filled in the annular box dam. The invention has the advantages of high luminous efficiency, low thermal resistance, uniform light distribution, good reliability, high cost performance and the like.

The present application relates to remote real-name authentication technical field, specifically to a kind of remote real-name authentication method and system based on image recognition, comprising: receiving user uploaded real-time live face image and identity card chip photo.The real-time live face image is detected by micro-expression texture analysis and light reflection feature extraction, and the facial texture feature is extracted to form live feature descriptor;Certificate chip photo is subjected to moire filter, light equalization processing and perspective distortion correction, to generate standardized certificate face image.Both are input into double-branch feature comparison network coding, to calculate the cosine similarity of feature vector, and the result is output by authentication decision engine in combination with the live detection result.The present application can avoid the risk of fake face fraud, reduce the comparison deviation, and improve the authentication security and accuracy.

The utility model relates to the technical field of semiconductor light emitting, and discloses an LED light source device which comprises a substrate, a light emitting chip, a first lens, a second lens and a cavity structure. The light-emitting chip is arranged on the substrate. The first lens at least covers the upper surface of the light-emitting chip. The second lens is arranged above the first lens. The cavity structure is arranged between the second lens and the substrate. The incident plane of the second lens is provided with a first optical interface recessed towards the interior of the second lens. The emergent face of the first lens comprises a second optical interface in the middle and a third optical interface on the periphery. The second optical interface extends into the recessed cavity structure below the first optical interface. The LED light source device is provided with the concave first optical interface, and the second optical interface extends into the concave cavity structure below the first optical interface, so that the size of the LED light source device is reduced, the divergence angle of emergent light in the area is enlarged, and the light distribution is more uniform; partitioned precise light control is achieved, and the service life of the product is long.