48 results about "Key light" patented technology

Image-based lighting for use in rendering of digital objects is derived from image data collected from a real motion-picture set. The image data includes sets of correlated images at different exposure levels, each corresponding to a selected location. The image data is processed to define an extended dynamic range panoramic image for each selected set location. The image data is color and intensity corrected based on a scaled reference object. At least key lights are modeled for the set by processing a plurality of such panoramic images. Other lighting may be defined by interpolating from the panoramic images to mathematically define a location-specific set of fill lights. In the alternative, other set lighting may be modeled by projecting panoramic image data onto a dynamically sub-dividable light primitive derived from the set geometry. Any desired object may then rendered using the defined lights, and inserted into a corrected real image of the set at the desired location.

The invention relates to a flexible circuit board, a liquid crystal display module and a terminal. The flexible circuit board comprises a main body, a first branch and a second branch, wherein the first branch and the second branch are connected to the main body; the first branch and the second branch are spaced away from each other; a backlight is connected to the main body; the first branch can be bent with respect to the main body; one end, which is far away from the main body, of the first branch is connected with a key light; the second branch can be bent with respect to the main body; one end, which is far away from the main body, of the second branch is used for welding a motherboard. The flexible circuit board can be connected with the key light and the backlight, so that the motherboard of the terminal can provide an electrical signal to the backlight and the key light at the same time through the flexible circuit board. The flexible circuit board is simple in structure, occupies small space, and is lower in the production cost.

The invention relates to a high-shading-degree white PPR pipe and a preparation method thereof. The pipe is prepared from, by weight, 100 parts of PPR, 2-5 parts of high-shading-degree white master batches, 0.8-1.8 parts of compound additives and 0.01-0.02 part of key light cut-off agents. The high-shading-degree white PPR pipe is obtained through pipe extrusion forming by a granulation and single screw pipe extruding machine. By the adoption of the technology, the produced high-shading-degree white PPR pipe product meets all index requirements in GB / T18742, the temperature resistance and pressure resistance of the pipe are improved, the light transmittance of the pipe is greatly lowered to be smaller than 0.01% from 3.5%, the white PPR pipe can be also used for outdoor environment, the situation that in the process of using a pipe outdoors, because sunlight transmits through the pipe, breeding and reproducing of green algae are generated is effectively avoided, and the safety of drinking water is further guaranteed.

The present invention provides a method for preparing a light conducting plate which is provided with a plurality of light conducting particles. The method comprises the following procedures: firstly preparing the mould which is provided with concave holes for molding a plurality of light conducing particles, decanting the mixture mixed by ultraviolet-curing resin and glass micro-bead into the mould, pasting the carrier on the mixture, rolling the surface of the carrier with a rolling instrument to uniformly filling the mixture in the mould, at the same time discharging the air among the mould, the carrier and the mixture, and at last when the ultraviolet-curing resin is executed with ultraviolet irradiation, solidifying the ultraviolet-curing resin on the carrier. Then the solidified resin is taken out from the mould thereby forming the light conducting plate with a plurality of light conducting particles.

The invention discloses a visible light-activated access control method with a hidden channel. A visible light-activated access control apparatus with a hidden channel is established that comprises a light-operated access control lock and a mobile unlocking terminal; unlocking is controlled via mutual certification between the lock and the terminal. The hidden channel is established with a backlight module and a light key receiving module, and key light signals are transmitted via lighting backlight. The light-operated access control lock certificates validity of the moving unlocking terminal via light information transmitted by a light transmitting module, so that an illegal mobile unlocking terminal is avoided trying to unlock the access control. The mobile unlocking terminal certificates the validity of the light-operated access control lock jointly via graphic symbols of a display module and hidden key backlight signals of the backlight module, thereby preventing a fake light-operated access control lock from intercepting user information and from cracking an unlock password. By using the method, possible safety hazards of the prior art, such as information intercepting, are avoided partly, and both safety and privacy are further improved.

The invention discloses a visible light-control access control device with a hidden channel. The device comprises a light-control access control lock and a moving unlocking terminal; the light-control access control lock is composed of a light lock receiving module, a lock control module, a controlled module, a display module, a backlight module, a communication and alarm module and a power module; the moving unlocking terminal comprises a light emission module, a light key receiving module, a display scanning module and a terminal control module. According to the visible light-control access control device with the hidden channel, access control is achieved through mutual authentication of the light-control access control lock and the moving unlocking terminal; the hidden channel is established by means of the backlight module and the light key receiving module, lighting backlight is used for transmitting a key light signal, the moving unlocking terminal is authenticated by means of light information sent by the light emission module, the light-control access control lock is authenticated by means of graphic symbols of the display module and hidden key backlight signals of the backlight module, that is to say, the situation that an illegal moving unlocking terminal attempts to open access control can be prevented, and a counterfeit light-control access control lock can be prevented from intercepting user information and cracking an unlocking password.

A key with a key light function comprising at least one light source (5), a storage circuit (20) for storing at least one code sequence, and a driver unit (10), which converts the stored form of the code sequence into a driving output for the light source (5), wherein the code sequence can be emitted by the light source (5) at a wavelength visible to humans by means of a temporal or color variation of the luminous flux, and the light source (5) can also be used as an orientation light.

The invention relates to a method of controlling telephone press key light source and equipment. The telephone includes many press keys, many light source, status detection equipment, and message processing equipment. The many light sources are set under the many corresponding press keys. The method includes using the status detection equipment to detect the operation status of the telephone, and using the message processing equipment to judge all possible stated function according to the operation status, moreover changing at least part of the many light sources from the first status to the second status to clearly show at least one press key of the corresponding all possible started function.

The invention discloses an airborne display and a method for widening the color gamut of the airborne display. The airborne display comprises a current source, a general control board, a key light guide board, a graphic board, a backlight source and a display screen, wherein the key light guide board, the graphic board, the backlight source and the display screen are coupled with the general control board; a working power supply is provided by the current source; the key light guide board is used for inputting a working state switching signal and electrically outputting the working state switching signal via a lead; the graphic board is used for generating a graphic picture signal and receiving an outside picture signal, and overlaps or zooms the graphic picture signal and / or the outside picture signal to obtain a display signal; the backlight source is used for generating a backlight signal; the general control board is used for transmitting the display signal, the working state switching signal, the backlight signal and a self-detection signal, and comparing the backlight source signal with initial data to correct the backlight source signal; the display screen is used for receiving and displaying the display signal.

The invention discloses a capacitance touch screen with a key backlight source. A light conductive material is adopted as a base material of a capacitance screen function piece, the base material serves as a light guiding element, the upper surface of the base material is divided into an electrode area and a key area, and a light guiding area is carved in the key area. A first reflection layer is arranged on the lower surface of a cover plate and is provided with a light-pervious area. A second reflection layer is arranged on the upper surface of a flexible circuit board. The projection area from orthographic projections of the first reflection layer and the second reflection area to the upper surface of the base material covers the key area and is not intersected with the electrode area. The projection area from an orthographic projection of the light guiding area to the lower surface of the cover plate covers the light-pervious area. A light emitting source is arranged on one side of the upper surface of the flexible circuit board. Special structures different from conventional touch screens can be manufactured, the number of key backlight source parts is reduced, key light source control can be achieved through the touch screen, and the requirements for cost and individuation of the emerging market are met.

The invention discloses a camera comprising a camera lens; and an image sensor which is provided with a pixel array; and a micro-lens array which covers the image sensor and comprises multiple variable micro-lenses which enable the key light angle of the micro-lens array to be changed so as to be matched with the key light angle of the camera lens, wherein all the variable micro-lenses and all the pixels of the pixel array are arranged in a one-to-one correspondence way so that light penetrating through each micro-lens is enabled to be focused on the single pixel. According to the camera, the micro-lenses forming the micro-lens array are arranged into the variable micro-lenses so that the key light angle of the micro-lens array is enabled to be changed, matching with the key light angle of the camera lens can be realized, the camera is enabled to more freely select the camera lens and the image sensor with the micro-lens array in the assembling and production process, the matching limitation of the camera lens and the image sensor can be avoided and the production and manufacturing difficulty can be reduced. The invention also provides electronic equipment with the camera.

The invention provides a mobile phone keyboard light guide plate with a metal spring piece, which comprises a plate body. The back of the plate body is printed with light guide points which are cylindrical protrusions made of light guide printing ink. The light guide plate is characterized in that the back of the body of the light guide plate is adhered with the metal spring piece; and the metal spring piece is adhered with the body through water-gel printing ink printed on the outer layer of the light guide points. The body of the light guide plate is a PU plate or a PC plate. The metal spring piece is in a circular shape. The invention also provides a process for producing the mobile phone keyboard light guide plate with the metal spring piece. A PET layer between the light guide plate and the metal spring piece is not required, so the overall thickness of the light guide plate is reduced, the contact between the keyboard and the spring piece is more direct, and the hand feels of pressing between the keyboard and the spring piece are improved. Moreover, the light guide plate is suitable for making thinner mobile phones and meets the market demands.

The invention discloses a light-emitting touch key and a key light effect interaction method. The luminous touch key comprises a key module and a backlight module, the key module comprises a key coverplate printed with a plurality of control keys; the backlight module comprises a diffusion plate, a light guide plate, a reflection plate, an infrared induction device and a plurality of light-emitting lamp beads, the light guide plate and the reflection plate are provided with corresponding infrared installation grooves and a plurality of corresponding lamp bead grooves, the light-emitting lampbeads are correspondingly arranged in the lamp bead grooves respectively, and the light-emitting lamp beads correspond to a plurality of control keys respectively. According to the present invention,the light-emitting touch keys can ensure that each control key emits light uniformly; the light crosstalk between the control keys is avoided, the infrared function of the infrared induction device isnot interfered, meanwhile, the light effect interaction design can be conducted on the light-emitting touch key through the infrared induction device, the overall light effect display effect of the light-emitting touch key is effectively improved, and then the product quality is improved.

The invention discloses a star sensor light hood. The light hood is assembled by an installing cover (1) and a beam limiting cover (2) in a split way. In the installing cover (1), the cutting edge light blocking ring of the butting part of the beam limiting cover (2) is the first cutting edge light blocking ring (4). In the beam limiting cover (2), the cutting edge light blocking ring of the butting part of the installing cover (1) is the second cutting edge light blocking ring (5). The opposite surfaces of the first cutting edge light blocking ring (4) and the second cutting edge light blocking ring (5) are provided with extinction patterns. The extinction patterns of the special structure are additionally arranged on the surface of the key light blocking rings of the conventional light hood so that the suppression effect of the stray light can be enhanced for orders of magnitude without increasing the volume size of the light hood. According to the novel light hood structure, the observation sensitivity and the measurement accuracy of the star sensor can be greatly enhanced without increasing the resource demand.

The invention discloses an intelligent piano system capable of prompting fingering and a use method of the intelligent piano system, and relates to the field of pianos. The intelligent piano system comprises a piano body, the piano body further comprises an integral key area formed when a plurality of white keys and a plurality of black keys are spliced in the horizontal line shape, a playing prompting lamp and a pressure sensing device are arranged on each of the white keys and the black keys, meanwhile, fingering prompting lamps are arranged at the rear side of the key area, a music collecting device and an image collecting device are arranged on the rear side face of the piano body, a bracket is fixedly connected to the upper part of the piano body, a liftable sliding part is arranged between the bracket and the upper part of the piano body, and a movement capturing device is rotatably arranged on one side of the sliding part. According to the technical scheme, through lighting of the fingering prompting lamps, the player can be reminded of the finger used for the next playing movement, then an information processing module sends an instruction to the playing prompting lamp on the corresponding key so that the playing prompting lamp on the corresponding key lights up, therefore, the purpose of promoting the user in playing a piano song is achieved, and the purpose of assisting the user in learning the piano is also achieved.

The invention relates to a key light guide assembly and a key backlight module thereof, wherein the key light guide assembly comprises a macromolecular base material and a UV (Ultraviolet) hardened material, and the UV hardened material is located on the surface of the macromolecular base material and is provided with a plurality of polyhedron microstructures.

The invention relates to the field of aerosol generating devices, and particularly discloses a key light guide device and method and an aerosol generating device. A transparent support and a first light source are arranged in a shell, and a light guide piece and a key are arranged in a mounting hole in the shell, so that the first light source in the shell emits light and then passes through the support; the support absorbs light based on the fluorescent substance and the transparent material and then refracts and reflects the light, the light guide piece can absorb the corresponding light based on self-illumination of the support, the light guide piece emits light to illuminate an annular area formed by the side face of the key, and a user can rapidly find the key located in the center ofthe light guide piece based on observation of the annular light guide piece. The position of the key is prevented from being mistakenly touched and found in the dark, and the use experience of a useris improved. The light is uniformly diffused based on the fluorescent substance in the support, and the bracket emits uniform light into the light guide piece, so that the light guide piece is more uniform in light emitting effect, the lighting effect is improved, and the light source utilization rate is increased.

In one aspect, this disclosure presents a method and apparatus for verifying that minimum object contrast requirements are met within a region representing a volume to be monitored by a machine vision system. In complementary fashion, the disclosure also presents a methodology for constraining the positions of the lighting sources to be used for illuminating the monitored volume at a minimum height above the floor, and for the use of a key light that provides asymmetrical lighting within the monitored volume relative to the camera(s) used for imaging the monitored volume. Correspondingly, the disclosure also presents a method and apparatus for monitoring for proper operation of the key light and responding to improper operation. The minimum contrast verification and key light monitoring operations can be implemented using standalone apparatuses, or can be incorporated into the machine vision system.

A key encoder input module for keyboard which transmitting signal with light, and the cost of manufacture is low. The key encoder input module includes circuit controller, keycap which setup on casingand connected with elastomer, multiple signal emitters and receivers. The key encoder input module also includes a light splitter, a key optical switch is set under the keycap, signal sent by the signal emitter corresponds to the light input port of the light splitters through key light switch, a light encoder is formed between the light splitters and receivers by connecting them with the light path of the light splitters. When a keycap is pressed, signal emitter conducts with the light path of receiver and forms light splitting path after passing the key light switch and light splitter whichperforming permutation and combination to light path, and light encoder outputs a set of key code signal corresponding to the key position of the keycaps to the input circuit controller. The key encoder input module has the advantages of that the configuration is simple, the cost is basically equal to the traditional keyboard, and the number of photocells used is small. For example, the computerkeyboard usually needs a phototranslating circuit with 5 sets of receivers, and produces 2<5>key codes, namely 32 sets of key codes. And the receiver does not need to directly correspond to light switch of keys in rows. The phototranslating circuit including receivers may be set on the same printed plate with emitters and main control chip. The key encoder input module has the advantages that theconfiguration of circuit is tight and simple, the cost of production is low, and it is easy to organize batch production. It is convenient to take steps to pressurize a bit of printed plate, so that the keyboard is wholly rainproof, even may be used in water.

The invention discloses an intelligent assembly platform of a backlight structure for improving home key light leakage, and relates to the technical field of assembly platforms. The intelligent assembly platform specifically comprises a protection frame and a first connecting plate body, wherein a window is arranged inside the protection frame, a connecting block is installed outside the bottom of the protection frame, a hydraulic air rod is arranged at the bottom of the connecting block, a connecting base is installed outside the bottom of the hydraulic air rod, and a main body frame is arranged in the middle of the interior of the connecting base. According to the intelligent assembly platform of the backlight structure for improving the home key light leakage, the vertical position of a placing plate can be adjusted by utilizing the effect of a second electric push rod according to the size of an object, so that a placing cavity and a rear plate are conveniently inserted and positioned pairwise, and the whole placing plate can be moved in the horizontal position through the interaction between a first electric sliding rail and a sliding block, follow-up assembly of the objects is facilitated, the structure is simple, and manual operation does not need.

The invention discloses a backlight module and a luminous keyboard. The luminous keyboard comprises a plurality of keys and a backlight module arranged below the keys, and one of the keys is a key with different colors. The backlight module comprises a light guide plate, at least one multi-color light source group, a light attenuation structure and a second optical medium. The light guide plate is composed of a first optical medium; the multi-color light source group is provided with a plurality of multi-color light sources, and the first light source is closest to the different-color key; the refractive index of the second optical medium is smaller than that of the first optical medium. The multi-color light source group is arranged corresponding to the incident surface of the light guide plate. The second optical medium is arranged between the multi-color light source group and the light incident surface. The light attenuation structure is arranged between the first light source and the different-color key and attenuates the first color light of the first light source passing through or passing through the light attenuation structure. The light-emitting keyboard can effectively solve the problem that the light-emitting color of the keys deviates to the color of the light of the light source closest to the keys, and therefore the key light-emitting effect and the use impression of the light-emitting keyboard are greatly improved.

The present invention discloses a uniform light key manufacturing method and a uniform light key product, and the method is used for the manufacture of a plastic key product with letter symbols, and comprises the following steps: (1) a first-injection material is used for first-injection injection molding to form a first-injection product, the first-injection product is provided with letter-symbol-like shapes, and the first-injection material is prepared from a light diffusion material; and (2) a second-injection material is used for second-injection injection molding on the first-injection product to form a second-injection product, and the second-injection product exposes the letter-symbol-like shapes on the first-injection product. The uniform light key product is prepared by the uniform light key product manufacturing method. The light diffusion material is used for first-injection injection molding, so that key light transmissive layer light can be uniformly dispersed, the effect is better, the process is simple and efficient, the product process is short, the yield is good, paint spraying is not needed, a low VOC material is selected, the product process is environmentally friendly, the product is environmentally friendly and green, and the product is produced by two times of injection molding without paint spraying, peeled off painting can be avoided, and reliability is high.

The invention provides a screen light transmission device and an electronic device. The screen light ray transmission device comprises M pieces of light transmission film and N function areas, wherein the N function areas are arranged on the M pieces of light transmission film, and the M and the N are positive integers. The distance between the M pieces of light transmission film and a side face of the screen of the electronic device is smaller than first preset distance. The M pieces of light transmission film are used for transmitting the light on the side face of the screen to the N function areas. According to the screen light transmission device and the electronic device provided by the invention, the space required by a key lamp of the electronic device is reduced.

The invention discloses an integrated button light guide panel and a display device. The button light guide panel is in the shape of "back" with a cavity structure in the center, and the outer edge of the upper surface of the button light guide panel extends perpendicularly to the upper surface to form a Side wall; wherein, a receiving groove for accommodating the hidden end of the control component is formed between the cavity structure and the side wall of the key light guide panel; the display screen can be parallel to and close to the upper surface of the key light guide panel and arranged in the cavity structure. The invention greatly shortens the visual depth, reduces the risk of visual blind spots, makes the visual range wider, and is safer and more reliable.

In one aspect, the present disclosure provides a method and apparatus for verifying that minimum object contrast requirements are met within an area representing a space to be monitored by a machine vision system. In a complementary manner, the present disclosure also provides a method for restricting the location of light sources for illuminating a surveillance space to a minimum height above ground, and for the use of key lights that are provided in conjunction with the Asymmetric lighting within a surveillance space relative to cameras imaging that surveillance space. Accordingly, the present disclosure also provides a method and apparatus for monitoring proper operation of critical lights and responding to improper operation. Minimum contrast verification and critical light monitoring operations can be accomplished using stand-alone devices, or can be incorporated into a machine vision system.

The invention discloses an intelligent assembly platform of a backlight structure for improving home key light leakage, and relates to the technical field of assembly platforms, in particular to a protection frame and a first connecting plate body. A window is arranged in the protection frame, a connecting block is installed outside the bottom of the protection frame, and a hydraulic air rod is arranged at the bottom of the connecting block; a connecting base is installed outside the bottom of the hydraulic air rod, and a main body frame is arranged in the middle of the interior of the connecting base. According to the intelligent assembly platform of the backlight structure for improving home key light leakage, the vertical position of a placing plate can be adjusted by utilizing the effect of a second electric push rod according to the size of an object, so that inserting for two-two positioning between a placing cavity and a rear plate is facilitated; and the the horizontal position of the whole placing plate can be moved through the interaction between a first electric sliding rail and a sliding block, follow-up assembly of the object is facilitated, the structure is simple, and manual operation is not needed.

The invention provides a key light guide structure and a mobile phone. The key light guide structure according to the invention comprises a light guide plate, the light guide plate comprises an illumination area for receiving illumination, a conduction area for conducting the illumination and a display area for displaying the illumination, and the key light guide structure further comprises a first light shielding piece and a second light shielding piece; the first light shielding piece is located at the upper part of the light guide plate and is covered on the illumination area and the conduction area of the light guide plate; and the second light shielding piece is located at the lower part of the light guide plate and is covered on the conduction area and the display area of the light guide plate. According to the key light guide structure provided by the invention, the light shielding pieces are arranged at the upper part and the lower part of the light guide plate to effectively avoid light leakage in a conduction process of the light guide plate, perfect the light guide distance of the light guide plate, improve the conduction efficiency of the light guide plate and reduce the interference of light leakage on mobile phone elements.