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.

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 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 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 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.

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 provides a method and a device for automatically adjusting the brightness of a button lamp. The method comprises the following steps: S101, acquiring the brightness level of ambient light and the brightness level of a button lamp; S102, matching the brightness level of the button lamp with the brightness level of ambient light; and S103, if matching fails, adjusting the brightness level of the button lamp. According to the invention, the brightness of the button lamp is adjusted in time through ambient light brightness detection, so that the brightness of the button lamp can change with ambient light, users can feel soft light from the button lamp at night or in an occasion with low brightness, and the button lamp is not too dazzling.

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.