61results about How to "Improve light guide efficiency" patented technology

A light guide module of optical mouse is disclosed. The light guide module comprises a LED die within a light guide input of light guide means. The light guide input comprises an internal paraboloid. Light emitted by the LED die and parallel reflected from the paraboloid is impinged on a light guide output.

The invention discloses a solar illumination device which comprises a natural light collecting device. The top of the natural light collecting device is provided with an automatic cleaning device, a solar battery plate base recombiner is connected with the lower portion of the natural light collecting device in a buckled and sealed mode and is provided with multiple solar luminosity sensors, a reflection grating assembly is arranged on the inner wall of the solar battery plate base recombiner in a buckled mode, the lower end of the reflection grating assembly is fixedly provided with a light guide tube, a dimming device is arranged in the light guide tube, the dimming device is provided with a storage battery and a solar intelligent controller on the outer wall of the light guide tube, the storage battery is connected with a photovoltaic power generation assembly and the solar intelligent controller in the solar battery plate base recombiner through wires, the bottom end of the light guide tube is connected with a solar illumination device base, the bottom of the base is connected with a diffuser, and the base is provided with an LED illumination lamp set provided with an LED radiator in a matched mode. A natural light source is used for lighting and illumination during the day, photovoltaic power is combined with the LED lamp set for illumination at night, and accordingly the illumination requirements of use areas in a building are met.

A dot structure of a light guide board including a front surface formed with multiple dot structures for guiding the light. Each dot structure has a face formed with multiple light guide fine structures for enhancing the light guide efficiency. Therefore, the light guide board can achieve both of high light guide efficiency and good uniformity of brightness.

The invention discloses a reflection-type sunshine illuminating system. The reflecting-type sunshine illuminating system comprises a light collecting device, an optical fiber coupler, a fiber optics bundle, and a semi-light-penetrable semi-trans-form light conduction lighting device, wherein the optical fiber coupler is connected with the light collecting device and is used for enabling sunshine which is collected through the light collecting device to be coupled in optical fibers, the fiber optics bundle is connected with the optical fiber coupler, and the semi-light-penetrable semi-trans-form light conduction lighting device is connected with the fiber optics bundle. The semi-light-penetrable semi-trans-form light conduction lighting device comprises a light guiding pipe and a plurality of semi-light-penetrable semi-trans-form prisms, wherein the plurality of semi-light-penetrable semi-trans-form prisms are arranged inside the light conducting pipe in a distributing mode at intervals. A light outlet is formed in the bottom portion of the light guiding pipe of the semi-light-penetrable semi-trans-form light conduction lighting device and a diffusing device is installed at the portion of the light outlet. The reflection-type sunshine illuminating system is simple in structure, reasonable in design, low in realizing cost, and capable of being widely applied to the fields such as gymnasium illumination, market illumination, underground illumination, underwater illumination, tunnel illumination, and road illumination. Besides, the fields of development and utilization of solar energy and the utilization rate are improved.

An optically reflective plate used for air conditioner, refrigerator, etc is composed of a wedged reflecting plate made of transparent material and with smooth internal surface, and a light source installed at one side of said reflecting plate, which may be ultraviolet light source. Said reflecting plate has a thickness variable with the distance from light source and a concave point array on itsback. The density of concave points varies with the distance from light source. The shading material is arranged on three side surfaces and the back of said reflecting plate. A photocatalytic disinfecting deodourizing unit is installed in the front of said reflecting plate.

The invention discloses a light guide plate manufactured by inner carving, aiming to provide a light guide plate which is characterized in that the light guide spot of the light guide plate does not become yellow because of air oxidation and dust pollution, and the light guide plate improves light guide efficiency, reduces luminous decay and prolongs the service life the light guide plate. The light guide plate is provided with the light guide spot comprising an inner light guide spot manufactured in the light guide plate by inner carving via laser. The invention also provides a manufacture method of the light guide plate and the lighting lamp with the light guide plate. The invention can be used for various fields of lighting, artistic lighting, decorative lighting, bathtubs, artware, artworks, furniture lighting, decorative materials, shopwindows, cabinets, display stands, direction boards and the like.

The invention relates to a light guide plate, a backlight source and a liquid crystal display device. The light guide plate comprises a top surface and a bottom surface, and the top surface and the bottom surface are provided with a microstructure respectively; the backlight source comprises any light guide plate provided by the technical scheme; and the liquid crystal display device comprises thebacklight source provided by the technical scheme. The top surface and the bottom surface of the light guide plate are provided with the microstructures, and the microstructure arranged on the top surface makes up the deficient overall evenness and brightness to the light guide plate by the microstructure on the bottom surface, thereby increasing the overall brightness and evenness, improving theeffect on overall evenness and the light guide efficiency of a light-emitting diode, and reducing the production cost of products.

An integrated type LED otpical display assembled with components includes light guide sheet and fixed frame, of which the light guide sheet having several shapes corresponding to fixed groove of the fixed rack is fixed in the middle of the groove in interval and it has prebuilt LED lighting tubes at one side or both sides of its periphery. The light guide sheet has rough light dispersing layer covered with the window covering plate which can display pictures and signs or covered with the light reflecting film on its positive face. The present display has a transparent protecting layer at its outermost layer and a back cover plate at its back side. The display has the advantages of high and uniform brightness, good light electric performance, suitable for large scale production in batch type and individualized assembling.

The invention discloses a solid state light source device, a projection system and a gathering illumination lamp adopting the device. The solid state light source comprises a hollow optical component. Air, vacuum or other light transmission media are included in the cavity of the optical component, a light-emitting window is arranged on the optical component in polyhedron shape; at least a light-entering window is arranged on the optical component, at least a light conducting prism is arranged corresponding to the light-entering window, a solid state luminescence component is arranged corresponding to the bottom side of the light conducting prism, reflection parts are positioned in the optical component or both in and out of the optical component, the light sent out by the solid state luminescence component is refracted or totally reflected by the light conducting prism, reflected by the reflection parts or directly emitted from the light-emitting window of the optical component. By fully utilizing the side wall of the optical component to be equipped with more solid state luminescence components, the device is capable of enlarging the effective light-emitting area of the solid state luminescence components, increasing the light output of light source under the condition of maintaining the same light-emitting window area; and all the light sent out by a plurality of solid state luminescence components is put together and educed toward the direction of the light-emitting window through the reflection part and the light conducting prism, which not only increases the light output but also educes light efficiently.

The invention discloses a micro-lens array light guide plate with adaptive spacing. The micro-lens array light guide plate comprises a light guide plate, a reflection surface of the light guide plate is provided with a plurality of V-groove-shaped or V-shaped protruding reflection plane lens structures parallel to each other and parallel to one edge of the light guide plate, the reflection surface lens structures are arranged in symmetry relative to the center line of the light guide plate, the spacing between the two adjacent reflection plane lens structures is ascended from two sides of the light guide plate to the center of the light guide plate, the value of the spacing ranges from 30 to 5000 micrometers, the included angle between two side surfaces of the reflection surface lens structures is 30-170 degrees, and the depth or the height is from 0.01 to 0.5 mm. According to the micro-lens array light guide plate, the luminous efficiency and the brightness are high, the light emission is more uniform, the light guide plate is light, the cost is low, the efficiency is high, and environmental protection is realized.

The present invention discloses a linear light source having light guide with taped saw tooth structures for Charge Coupling Device Module (CCDM). The linear light source comprises a light guide and at least two Light Emitting Diodes (LED's). The light guide includes two incident surfaces, a reflective surface, two refractive surfaces and an ejective surface. The reflective surface has a taped saw tooth structure; the LEDs are disposed at two ends of the light guide. Upon emission of light from the LEDs, light enters into the light guide, reflected by the taped saw tooth structures, and then ejected from the ejective surface. It is possible to form a U-shaped lambert distribution in the sub scanning direction, thereby generating the complementary effect for the pickup lens and the CCD image sensor of CCDM, as well as to create a linearly converged lambert distribution in the main scanning direction.

A front light module includes a light source and a light-guiding plate. The light-guiding plate is disposed outside a panel. The light-guiding plate receives the light emitted by the light source and reflects the light onto the panel. The light-guiding plate includes a first reflecting surface facing the panel and a second reflecting surface opposite to the first reflecting surface. An included angle is formed between the panel and the first reflecting surface or the second reflecting surface. The front light module can reflect the light onto the panel uniformly to generate sufficient brightness.

The invention relates to the field of manufacture of backlight modules and discloses a method for manufacturing a lamp bar and light guide board integrated structure. The method comprises the following steps: S1, manufacturing LED lamps and a circuit board, and arranging the LED lamps on the circuit board so as to form a lamp bar; S2, providing a mold for manufacturing the lamp bar and light guide board integrated structure, wherein the mold comprises a female mold and a male mold which are matched with each other; putting the circuit board of the lamp bar manufactured in S1 in a sinking groove of the female mold, and assembling the male mold and the female mold, wherein a cavity of the male mold is matched with the female mold to form mold holes together, and the LED lamps of the lamp bar are embedded in the mold holes; S3, injecting injection molding materials of light guide boards into the mold holes from an injection molding channel of the male mold; and S4, keeping the pressure until the structure is cooled, and demolding to form a finished lamp bar and light guide board integrated structure. The lamp bar and light guide board integrated structure manufactured by adopting the method disclosed by the invention can be used for solving the problem that the process of sticking the lamp bar and the light guide board is complex in assembly of the backlight module. The invention further provides the mold for manufacturing the lamp bar and light guide board integrated structure, and the backlight module.

The present invention discloses a brain volumetric measuring method for measuring brain volumetric changes of a subject. The method at least comprises the following steps. First, a light source is provide and emitted into the head of the subject through a light source emitting position. And then, a first optical signal is obtained by receiving numerous scattered photons from the head of the patient through several second positions of. A second optical signal will be obtained by processing the first optical signal. The present invention also discloses a brain volumetric measuring system for performing the abovementioned method.

The invention discloses a concentric-circular-arc-curve-arrangement micro-lens array light-equalization plate which comprises an Acrylic board. The lower surface of the Acrylic board is a light-reflection surface, the upper surface of the Acrylic board is a light-outgoing surface, and one side surface thereof is a light-incoming surface; a plurality of V-shaped grooves, in concentric circular arc curve arrangement, are engraved in the light-outgoing surface; the V-shaped grooves are distributed in concentric circular arc curves, which are not equal in space between thereof and which take the center point of an edge, where the light-outgoing surface and the light-incoming surface of the Acrylic board meet, as the circle center; and the V-shaped grooves extend from the light-incoming surface to a tail end surface of the Acrylic board. The invention also discloses a manufacturing method of the concentric-circular-arc-curve-arrangement micro-lens array light-equalization plate. The light-equalization plate has the advantages of being small in the number of LED light sources, being efficient and energy saving, being high in light guiding efficiency, being uniform in light outgoing and being high in brightness and the like. Micro cutting ensures dimension precision and shape precision of a micro-lens array of the light-equalization plate, so that the internal light path of the light-equalization plate is allowed to be strictly controllable; and the light-equalization plate is long in service life, high in light guiding efficiency, and uniform in light outgoing.

The invention relates to an LED (Light-Emitting Diode) plane light source and a method for increasing the light guiding efficiency thereof, belonging to the technical field of light sensing engineering application. The LED plane light source is characterized in that a light reflection layer is arranged between the side of a light guiding plate and a PCB (Printed Circuit Board), a light outlet is prearranged at a position on the light reflection layer corresponding to LED light sources, and the PCB, the light reflection layer and the light guiding plate clings to each other in sequence; and the LED light sources respectively arranged at two opposite sides of the light guiding plate are arranged in ways of mutual cross and ectopic complementation. One side of each of the LED light sources is additionally provided with the light reflection layer on which the light outlet is prearranged, thus the light reflection at the side of the light guiding plate is avoided, light emitted by an LED is directly led out through the light outlet by the light guiding plate, and the light incidence efficiency is increased; the LED light sources are arranged in ways of mutual cross and ectopic complementation, thus, the condition that the LED absorbs the light from the opposite LED per se is avoided, and the light guiding efficiency is increased; and on the basis of ensuring same brightness, the consumption of the LEDs can be reduced and the lost can be lowered.

The invention discloses a durable antibacterial composite textile fabric, and belongs to the technical field of textiles; a plurality of light release microspheres are introduced in the middle in theform of a composite fabric, and light guide beams on the light release microspheres extend to the surface of the fabric to absorb external light and transmit the light to the internal light release microspheres; by means of the characteristics of a photo-thermal conversion material, light energy can be efficiently converted into heat, control balls on the light release microspheres are heated andare forced to shrink and deform while being heated and softened, so that slow release holes in the light release microspheres are opened, and at the moment, an antibacterial bag in the light release microspheres automatically deforms, shrinks and slowly extrudes the antibacterial liquid; on one hand, the antibacterial liquid is absorbed by the fabric and performs a slow-release antibacterial effect, and on the other hand, the control balls are cooled to restore the shape to seal the slow-release holes again, so that the antibacterial liquid can be released quantitatively at regular intervals to reduce loss caused by water washing, and the antibacterial life of the fabric is greatly prolonged.

A method of accent lighting and an accent light including an LED and a light guide with polished proximal and distal ends. The LED is optically coupled to the proximal end and the distal end reflects the LED light back into the guide. Additionally, the distal end may include a reflective coating and the guide may be acrylic. Moreover, the guide may be supported by a vinyl support glued to the guide whereby the light output about doubles. Also, a longitudinal etch on the acrylic guide may make the light output about consistent along the guide.

The invention discloses an anti-ultraviolet planar light source optical structure, an anti-ultraviolet diffusion layer and an LED panel light. The optical structure comprises an anti-ultraviolet diffusion layer, a light guiding layer and a reflective layer. The light guiding layer has two opposite surfaces including a back surface and a light emitting surface. The reflective layer is located on the back surface of the light guiding layer, and the anti-ultraviolet diffusion layer is located on the light emitting surface of the light guiding layer. A plurality of light guiding points are arranged between the reflective layer and the light guiding layer. The anti-ultraviolet diffusion layer is a diffusion plate made of an anti-ultraviolet material, and the diffusion plate comprises transparent plastic and master batch, wherein the transparent plastic accounts for 92-99.5% of the total weight of the diffusion plate, and the master batch accounts for 0.5-8% of the total weight of the diffusion plate. The anti-ultraviolet diffusion layer is adopted, which can prevent ultraviolet rays in a surrounding external environment from illuminating the light guiding layer through the anti-ultraviolet diffusion layer; the problems such as deformation, discoloration, yellowing and damage of the light guiding layer due to ultraviolet irradiation can be avoided; the light guiding layer is protected; and the problems such as brightness reduction and uneven brightness of the optical structure can be avoided.

The present invention provides a light guide plate and a backlight module, wherein the light guide plate comprises a bottom surface, a light incident surface and a light-emitting surface. The light-emitting surface and the bottom surface are positioned oppositely. The bottom surface comprises a plurality of screen dots. The screen dots comprise fluorescent powder and are selectively added with diffusion particles. The present invention prevents the phenomenon of color shift and the luminous efficiency degradation due to the fluorescent powder accelerated ageing because of closing to the LED chip.

The invention provides an input device and a light guide plate thereof; the light guide plate is provided with light transmission and application to the input device; one surface of the light guide plate comprises a first area and a second area; the first area is covered by lighttight material; if the light beam is emitted in the light guide plate, the light beam can emit out through the second area; the input device and the light guide plate thereof can greatly simplify the complex structure and the preparation process of the traditional luminescence keyboard and can effectively improve the light guiding efficiency of the light guide plate.

The invention discloses a light guide plate manufactured by utilizing a 3D printer and a manufacturing method. The light guide plate comprises a light guide casing having a hollow chamber and openings at two ends, a light guide baffle board arranged in the hollow chamber of the light guide casing, and light source units which are mounted at the opening ends of the light guide casing and are used for providing light for the light guide casing and the light guide baffle board, wherein the light source units comprise casing covers detachably arranged at the opening ends of the light guide casing and light sources mounted in the casing covers. The light guide plate has advantages of good light guide effects, cost-saving performance, rapid molding and high production efficiency, and the light guide plate is molded through the 3D printer.

The present invention provides a light guide plate and a backlight module, wherein the light guide plate comprises a bottom surface, a light incident surface and a light-emitting surface. The light-emitting surface and the bottom surface are positioned oppositely. The bottom surface comprises a plurality of screen dots. The screen dots comprise fluorescent powder and are selectively added with diffusion particles. The present invention prevents the phenomenon of color shift and the luminous efficiency degradation due to the fluorescent powder accelerated ageing because of closing to the LED chip.

A method for manufacturing a glass light guide plate having high transmission efficiency is provided. A glass plate is cut and formed using a cutter machine. The glass plate includes a first flat surface and a second flat surface that are opposite and parallel to each other, and a light incident surface perpendicular and connected to the first flat surface and the second flat surface. The light incident surface is heated and extruded using a thermoplastic machine to deform the light incident surface to form a light guide portion. The light guide portion includes a light guide surface perpendicular to the first flat surface and the second flat surface, and has an area greater than an area of the light incident surface. When a light enters via the light guide surface, the amount of light irradiating corners of the light guide surface is reduced.

The invention provides a light-guiding type white light synchronous illuminating device for a multi-projector true three-dimensional displayer. The device comprises a rotating group and at least two fixing groups, wherein the rotating group is formed by a vertical light-guiding bar, two right-angle prisms and two horizontal light-guiding bars, triangular surfaces of the two right-angle prisms are coincided, inclined planes of the two right-angle prisms are opposite to each other, the two right-angle prisms are arranged just above the vertical light-guiding bar, and the incidence ends of the two horizontal light-guiding bars are respectively arranged just towards the emergent ends of the two right-angle prisms; and each fixing group is formed by an expanded prism group, a horizontal short light-guiding bar, a bent-over prism, an oblique light-guiding bar and an optical lens, the incidence end of the horizontal short light-guiding bar is arranged just towards the emergent end of the expanded prism group, the incidence end of the bent-over prism is arranged just towards the emergent end of the horizontal short light-guiding bar in parallel, the incidence end of the oblique light-guiding bar is arranged just towards the emergent end of the bent-over prism in parallel, and an optical axis of the optical lens coincides with an emergent optical axis of the oblique light-guiding bar. According to the device, the structure of a synchronous rotating illuminating circuit can be compact, the weight can be light, the light consumption can be low, and the rotational inertia of the synchronous rotating illuminating circuit can be reduced.

The invention provides a light guiding column for a communication cabinet plugboard. The light guiding column has a mechanical integral structure and furthermore is made of a polycarbonate composite material with excellent transmittance. The light guiding column comprises a plurality of light transmission units which are uniformly distributed in a linear array. Each light transmission unit comprises a cylindrical boss, a slot and a trough. The cylindrical boss comprises a thin cylinder which is used for externally connecting with a light-penetrable hole on a front panel of a communication cabinet, and a thick cylinder which performs a positioning function on the thin cylinder. The thin cylinder and the thick cylinder are coaxially arranged and form a stepped structure. The cylindrical boss performs a function of converging and transmitting light which is emitted from an LED lamp in a PCB in the communication cabinet. Each cylindrical boss is arranged coaxially with the trough at a corresponding position. The slot has a through structure. The LED lamp is embedded into the trough. The light guiding column is advantageous in that the cylindrical boss is arranged between the front panel and the PCB, and transmission channel is supplied for optical signal transmission of the LED lamp, thereby greatly improving light guiding efficiency of an optical signal which is transmitted from the LED lamp.

The invention discloses an LED (Lighting-Emitting Diode) flat panel light source which comprises a light guide layer, a reflecting layer, a blister buffer layer and a backboard, wherein the light guide layer comprises two opposite surfaces, namely a light guide surface and a light-exiting surface respectively; the reflecting layer is positioned on the light guide surface of the light guide layer; the blister buffer layer is positioned between the backboard and the reflecting layer and is a blister product formed by connecting a convex part and a concave part; a stack-up part composed of the light guide layer, the reflecting layer and the blister buffer layer is of a flat plate shape; and a plurality of light guide points are formed between the reflecting layer and the light guide layer. Because the light source contains the blister buffer layer, the LED flat panel light source disclosed by the invention has the buffering transformation function, contributes to prolonging the service life and has the advantages of lightweight, attractive appearance and material conservation. Moreover, a line light source can be converted into an area source, plane illumination is realized, and the LED flat panel light source is uniform and soft in illumination, low in cost, simple in structure and easy to implement.

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.

The invention provides a multiaxial light pipe module, comprising a light pipe, a luminescence unit, a display unit and a light guiding unit; wherein the light pipe is provided with a luminescence part and a bending part which is connected with the luminescence part; the luminescence part is provided with at least two axial luminous surfaces to generate at least two axial luminous effects; the display unit is provided with a first axial display layer corresponding to the first axial luminous surface and a second axial display layer corresponding to the second axial luminous surface; the light guiding unit is arranged on the luminescence part to improve the luminous efficiency of the luminescence part; the luminous and display effects of the multiple axial luminous surfaces of the luminescence part are enhanced by the display unit and the light guiding unit; therefore, a user can observe luminous display from different axial planes easily and effects of alert messages and indication are achieved.