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30results about How to "Implement diffuse reflection" patented technology

Ultra-thin Schroder scatterer

Disclosed in the invention is an ultra-thin Schroder scatterer comprising a substrate. Square grooves arranged at 7*p rows and 7*q columns are formed in the substrate, wherein the p and q are integers larger than or equal to 1; and the length of side of each square groove is 0.48 lambda and the depth of each groove is 0.04 lambda. The grooves are provided with square necks; the side length of each square neck is smaller than that of the square groove and the depth of the neck is 0.01 lambda, wherein the lambda is a corresponding wavelength, for a certain central frequency f0 design, of the scatterer. The neck width w of different groove units are different and the distribution meets a specific sequence of number. According to the invention, diffuse reflection of acoustic waves can be realized at a broadband. Compared with the traditional Schroder scatterer, the provided ultra-thin Schroder scatterer has a closer diffuse reflection effect. Meanwhile, the material thickness can be reduced. Compared with the traditional Schroder unit having the thickness of lambda / 2, the provided Schroder scatterer has the thickness of lambda / 20, so that the Schroder scatterer can be used conveniently in practice.
Owner:NANJING UNIV

Blackboard writing projection mechanism for teaching

InactiveCN104330949ARealize switchingIncrease the effective writing areaProjectorsElectrical appliancesComputer engineeringProjector
The invention discloses a blackboard writing projection mechanism for teaching. The blackboard writing projection mechanism comprises a blackboard writing projection plate (1), a background mechanism and a projector (2), wherein the background mechanism is arranged at the rear side of the blackboard writing projection plate (1) and close to the blackboard writing projection plate (1), the blackboard writing projection plate (1) is made of a transparent material, the background mechanism comprises a black movable background plate (3), a white movable background plate (4) and a black fixed background plate (5) which are orderly arranged at the rear side of the blackboard writing projection plate, the areas of the white movable background plate (4) and the black movable background plate (3) are the same, and the white movable background plate (4) and the black movable background plate (3) can move left and right under the driving of a power mechanism. Due to the adoption of the blackboard writing projection mechanism disclosed by the invention, the effective writing area can be increased, the position of the white movable background plate can be changed so that the people at different angles can clearly see the content of the projection, and the projection and the switching of the projection states can be realized.
Owner:CHINA JILIANG UNIV

Blackboard-writing projector mechanism for teaching

InactiveCN104375370AIncrease the effective writing areaRealize automatic adjustmentProjectorsElectrical appliancesWhite areaProjector
The invention discloses a blackboard-writing projector mechanism for teaching. The blackboard-writing projector mechanism comprises a blackboard-writing projection board (1), a background mechanism and a projector (2). The background mechanism is positioned in rear of the blackboard-writing projection board (1) which is made of transparent materials. The background mechanism comprises a belt (3) and two rollers (4) for driving the belt (3) to rotate. The belt (3) sleeves the two rollers (4) and is parallel to and close to the blackboard-writing projection board (1). A black area (3.1) and a white area (3.2) are arranged on the outer side of the belt (3), wherein the area of the white area (3.2) is equal to the projection area of the projector (2). During projection, the projectors projects images onto the white area of the belt (3). By the blackboard-writing projector mechanism, effective writing area can be increased, the other side of the belt can be moved to one side close to the blackboard-writing projection board, and the white area can move along with the belt to change projection positions to enable people at different angles to see projected content clearly.
Owner:王鲁旭

Control method of teaching blackboard writing projection system

The invention discloses a control method of a teaching blackboard writing projection system. The teaching blackboard writing projection system comprises a backboard writing projection board (1), a background mechanism and a projector (2), wherein the background mechanism is positioned at the back side of the backboard writing projection board (1) and is arranged near the backboard writing projection board (1), the backboard writing projection board (1) is made of transparent material, the background mechanism comprises a fixed black background board (3) and a projection curtain board (4), the projection curtain board (4) is positioned between the fixed black background board (3) and the backboard writing projection board (1), the projection curtain board (4) is made of electrically-controlled liquid crystal coloring glass, the electrically-controlled liquid crystal coloring glass is transparent in the energizing process, and is white in the deenergizing process, and the projector (2) is used for projecting onto the deenergized electrically-controlled liquid crystal coloring glass in the projection process. The teaching blackboard writing projection system has the advantages that the effective writing area is increased, the projection position is changed by changing the electrically-controlled liquid crystal coloring glass area or the deenergizing area, and people at different directions can clearly watch the project content.
Owner:CHINA JILIANG UNIV

Liquid crystal display (LCD) device

A liquid crystal display (LCD) display device comprises a first substrate, a second substrate and a liquid crystal molecular layer, wherein the first substrate and the second substrate are oppositely arranged. The liquid crystal molecular layer is arranged between the first substrate and the second substrate. The first substrate comprises a first shared electrode which is arranged on the inner side, relative to the second substrate, of the first substrate. The second substrate comprises a plurality of scanning lines and a plurality of data lines, and the scanning lines and the data lines are arranged on the inner side, relative to the first substrate, of the second substrate, and the scanning lines intersect with the data lines in an insulating mode. The scanning lines and the data lines define a plurality of subpixel areas. Each subpixel area comprises a switch element and a subpixel electrode. The switch element is electrically connected with the scanning lines, the data lines and the subpixel electrodes. When the first shared electrode and the subpixel electrodes obtain a driving signal, a tilted electric field for driving liquid crystal molecules to pretilt is formed between the first shared electrode and the subpixel electrodes. The LCD device is capable of reducing manufacturing cost, simplifying manufacturing process and improving product performance.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Power-driven glass based blackboard writing projection system

InactiveCN105785697AIncrease the effective writing areaEffective use of writing areaProjectorsElectrical appliancesProjection screenProjection system
The invention discloses a power-driven glass based blackboard writing projection system. The power-driven glass based blackboard writing projection system comprises a blackboard writing projection panel (1), a background mechanism and a projector (2), wherein the background mechanism is arranged on the rear side of the blackboard writing projection panel (1) and is in close contact with the blackboard writing projection panel (1), the blackboard writing projection panel (1) is made of a transparent material, the background mechanism comprises a fixed black background plate (3) and a projection screen plate (4), the projection screen plate (4) is arranged between the fixed black background plate (3) and the blackboard writing projection panel (1) and is power-driven liquid crystal photochromic glass, the power-driven liquid crystal photochromic glass is in a transparent state when energized and is in a white color when power is off, and the projector (2) is projected on the power-off power-driven liquid crystal photochromic glass during projection. By the power-driven glass based blackboard writing projection system, the effective writing area can be expanded, the projection position can be changed by chancing the position or a power-off region of the power-driven liquid crystal photochromic glass, and people at different angles can see projection content clearly.
Owner:CHINA JILIANG UNIV

Power-driven glass based blackboard writing projection method for teaching

InactiveCN105549316AIncrease the effective writing areaEffective use of writing areaProjectorsElectrical appliancesColored whiteProjection screen
The invention discloses a power-driven glass based blackboard writing projection method for teaching. A blackboard writing projection system for teaching comprises a blackboard writing projection plate (1), a background mechanism and a projector (2), wherein the background mechanism is arranged on a rear side of the blackboard writing projection plate (1) and is in close contact with the blackboard writing projection plate (1), the blackboard writing projection plate (1) is made of a transparent material, the background mechanism comprises a fixed black background plate (3) and a projection screen plate (4), the projection screen plate (4) is arranged between the fixed black background plate (3) and the blackboard writing projection plate (1) and is power-driven liquid crystal photochromic glass, the power-driven liquid crystal photochromic glass shoes a transparent state when energized and shows a white color when power is off, and the projector (2) carries out projection on the power-driven liquid crystal photochromic glass which is in a power-off state. By the blackboard writing projection system, the effective writing area can be expanded, the position or the power-off region of the power-driven liquid crystal photochromic glass can be changed to change the projection position, and thus, people at different angles can all clearly view the projected content.
Owner:CHINA JILIANG UNIV

Pixel structure, manufacturing method of pixel structure and array substrate

The invention belongs to the technical field of panel display, and particularly relates to a pixel structure, a manufacturing method of the pixel structure and an array substrate. A diffuse reflection structure and a mirror reflection structure are arranged on a reflection substrate layer, a reflection layer covers the diffuse reflection structure and the mirror reflection structure and presents shapes corresponding to the diffuse reflection structure and the mirror reflection structure, and when incident light irradiates the position, corresponding to the diffuse reflection structure, of the reflection layer, the reflection layer conducts diffuse reflection on the incident light; when incident light irradiates the position, corresponding to the specular reflection structure, of the reflection layer, the reflection layer conducts specular reflection on the incident light. Therefore, the functions of diffuse reflection and specular reflection of light are achieved, the display device with the structure has high reflectivity, diffuse reflection and specular reflection are beneficial for increasing the lateral visual angle, a backlight source structure does not need to be used, overall power consumption is reduced, cost is saved, and meanwhile the product further has the advantages of being wide in visual angle and high in contrast ratio.
Owner:SHENZHEN LAIBAO HI TECH

Reflective type LED illumination lamp

The invention discloses a reflective type LED illumination lamp which comprises a support, LEDs, a dodging piece, a lamp cup, a radiator, a heat tube, a power supply and a connector. The lower end of the lamp cup is provided with the support, the LEDs are distributed on the support, the heat tube is disposed in the support, the other end of the heat tube is provided with the radiator, the radiator is connected with the connector, the power supply is arranged in the connector, and the dodging piece is arranged on the lower portion of the support. By means of the mode, the reflective type LED illumination lamp has the advantages of being high in reliability, compact in structure, wide in illumination range, good in heat dissipation, low in price, long in service life, good in brightness uniformity, low in energy consumption and the like; meanwhile, the reflective type LED illumination lamp has wide market prospects in the home lighting market.
Owner:JIANGSU DALEN ELECTRONICS CO LTD

Blackboard projection system for teaching

The invention discloses a blackboard-writing projecting system for teaching. The blackboard-writing projecting system comprises a blackboard-writing projecting plate (1), a background mechanism and a projector (2), wherein the background mechanism is positioned at the rear side of the blackboard-writing projecting plate (1) and is close to the blackboard-writing projecting plate (1), the blackboard-writing projecting plate (1) is made of a transparent material, the background mechanism comprises a fixed black background plate (3) and a projection screen plate (4), the projection screen plate (4) is positioned between the fixed black background plate (3) and the blackboard-writing projecting plate (1), the projection screen plate (4) is made of electronically-controlled liquid crystal photochromic glass, the electronically-controlled liquid crystal photochromic glass is transparent when being electrified, and is white when being in power failure, and the projector (2) projects on the electronically-controlled liquid crystal photochromic glass in power failure when projecting. According to the blackboard-writing projecting system, the writing area can be effectively increased, and a projection position can be changed by changing a position of the electronically-controlled liquid crystal photochromic glass or a power failure region, so that persons in different angles can see projected contents clearly.
Owner:CHINA JILIANG UNIV

LED fluorescent powder coating technology

The invention discloses an LED fluorescent powder coating technology. An aluminum alloy surface is taken as a diffuse reflection surface of an LED light source; aluminum alloy is subjected to surface treatment; the surface treatment comprises aluminum alloy anodic oxidation treatment, nano fluorescent powder surface finish treatment, nano fluorescent powder filling treatment and hole sealing treatment; the aluminum alloy surface is taken as the diffuse reflection surface and partially converts blue light emitted by an LED into yellow light through the conversion function of nano fluorescent powder, and the yellow light and the blue light are mixed to form white light. The LED fluorescent powder coating technology has the technical benefits as follows: the fluorescent powder doesn't block radiating of the LED, simultaneously, work of the fluorescent powder at higher temperature can be avoided, and the LED coating technology is a preferable technical scheme of a superhigh power LED light source.
Owner:深圳市三创客科技有限公司

Blackboard writing projection system based on electric-control glass and used for teaching

InactiveCN104375369AIncrease the effective writing areaEffective use of writing areaProjectorsElectrical appliancesProjection screenChange positions
The invention discloses a blackboard writing projection system based on electric-control glass and used for teaching. The blackboard writing projection system comprises a blackboard writing projection board (1), a background mechanism and a projector (2), the projection mechanism is positioned on the rear side of the blackboard writing projection board (1) and is close to the blackboard writing projection board (1), the blackboard writing projection board (1) is made by a transparent material, the background mechanism comprises a fixed black background board (3) and a projection screen board (4), the projection screen board (4) is positioned between the fixed black background board (3) and the blackboard writing projection board (1) and is electric-control liquid crystal photochromic glass which is transparent when being electrified and white when being powered off, and the projector (2) projects on the electric-control liquid crystal photochromic glass which is powered off during projection. By the blackboard writing projection system, effective writing area can be increased, and projection position can be changed by changing position of the electric-control liquid crystal photochromic glass or power-off area, so that people from different angles can see projection content clearly.
Owner:CHINA JILIANG UNIV

Eye-protection classroom lighting lamp

The invention relates to the technical field of lighting, in particular to an eye-protection classroom lighting lamp which comprises a lamp ballast, a lamp shell and a lamp tube. A self-closing lifting hook used for being fixed to a building and an input end cable used for power input are fixedly arranged at the top of the lamp ballast, and the lamp ballast is fixed to the top of the outer side ofthe lamp shell through screws; and a nanometer reflecting cover is fixedly arranged at the top of the inner side of the lamp shell, the lamp tube is fixed to the bottom of the nanometer reflecting cover through a lamp tube connecting piece, the lamp tube is of an annular electromagnetic induction lamp tube structure, and an optical PC cover is fixedly connected to the bottom of the lamp shell inan involution manner. According to the eye-protection classroom lighting lamp, an electromagnetic induction lamp is adopted for photoelectric conversion, diffuse reflection of the lamp is achieved, the problems of dazzle light and dazzling of the lamp are solved, and the lamp has market prospects and is suitable for popularization.
Owner:杭州莱特司无极光照明有限公司

Led module with optical diffusion layer formed

The invention provides an LED module with an optical diffusion layer formed to serve as a mirror around LEDs for attaining irregular reflection of light by few LEDs so as to disperse the light from an angled layer for dispersing the light angle and to secondarily dispersing light from another irregular reflection layer, thereby uniformly distributing the light on a light emitting surface when using the LED as an illumination light source member. The LED module includes the optical diffusion layer formed to include a heat radiation diffusion plate having irregularly reflecting diffusion layers formed on its both sides and a U-shaped insertion port formed in its central upper end; a light emitting section having a PCB substrate coupled into the insertion port by a press-in method, a waterproof resin layer formed on an upper surface of the PCB substrate 21, input / output connectors for power supply formed on upper surface both ends of the waterproof resin layer and the LEDs3 longitudinally disposed between the input / output connectors; and a double-sided tape longitudinally attached to the bottom of the heat radiation diffusion plate to fix the heat radiation diffusion plate to a frame with a lid.
Owner:株式会社吉光 +1

Liquid crystal display device

A liquid crystal display (LCD) display device comprises a first substrate, a second substrate and a liquid crystal molecular layer, wherein the first substrate and the second substrate are oppositely arranged. The liquid crystal molecular layer is arranged between the first substrate and the second substrate. The first substrate comprises a first shared electrode which is arranged on the inner side, relative to the second substrate, of the first substrate. The second substrate comprises a plurality of scanning lines and a plurality of data lines, and the scanning lines and the data lines are arranged on the inner side, relative to the first substrate, of the second substrate, and the scanning lines intersect with the data lines in an insulating mode. The scanning lines and the data lines define a plurality of subpixel areas. Each subpixel area comprises a switch element and a subpixel electrode. The switch element is electrically connected with the scanning lines, the data lines and the subpixel electrodes. When the first shared electrode and the subpixel electrodes obtain a driving signal, a tilted electric field for driving liquid crystal molecules to pretilt is formed between the first shared electrode and the subpixel electrodes. The LCD device is capable of reducing manufacturing cost, simplifying manufacturing process and improving product performance.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Smart home curtain and use method thereof

The invention belongs to the field of smart home, and particularly relates to a smart home curtain and a use method thereof. The method is carried out in cooperation with a smart home curtain, the smart home curtain comprises a machine cover, a motor is fixedly arranged on the machine cover, a rolling rotating shaft is fixedly arranged at the output end of the motor, a rolling roller is fixedly arranged on the rolling rotating shaft, a first connecting rolling frame is fixedly arranged on the rolling roller, and a first fixed rack is fixedly arranged on the first connecting rolling frame; a first rotating shaft capable of rotating freely is fixedly arranged on the first fixed machine frame, an elastic connecting layer is fixedly arranged on the first rotating shaft, a plurality of turning grooves are formed in the elastic connecting layer at intervals in a gradually increasing mode, a dimming and heat insulation mechanism is arranged in each turning groove, position adjusting transverse rods are symmetrically and fixedly arranged in the machine cover, and a cleaning and position adjusting mechanism is arranged on each position adjusting transverse rod. The smart home curtain has cleaning capacity and collecting capacity, can adjust ambient brightness and illumination according to needs, has certain heat insulation capacity and can prevent light pollution to a certain extent.
Owner:上海哝笃科技有限公司

Blackboard Projection System Based on Electronically Controlled Glass

InactiveCN105785697BIncrease the effective writing areaEffective use of writing areaProjectorsElectrical appliancesProjection screenProjection system
The invention discloses a power-driven glass based blackboard writing projection system. The power-driven glass based blackboard writing projection system comprises a blackboard writing projection panel (1), a background mechanism and a projector (2), wherein the background mechanism is arranged on the rear side of the blackboard writing projection panel (1) and is in close contact with the blackboard writing projection panel (1), the blackboard writing projection panel (1) is made of a transparent material, the background mechanism comprises a fixed black background plate (3) and a projection screen plate (4), the projection screen plate (4) is arranged between the fixed black background plate (3) and the blackboard writing projection panel (1) and is power-driven liquid crystal photochromic glass, the power-driven liquid crystal photochromic glass is in a transparent state when energized and is in a white color when power is off, and the projector (2) is projected on the power-off power-driven liquid crystal photochromic glass during projection. By the power-driven glass based blackboard writing projection system, the effective writing area can be expanded, the projection position can be changed by chancing the position or a power-off region of the power-driven liquid crystal photochromic glass, and people at different angles can see projection content clearly.
Owner:CHINA JILIANG UNIV

Control method of blackboard-writing projector mechanism for teaching

InactiveCN104375368ARealize switchingIncrease the effective writing areaProjectorsElectrical appliancesComputer scienceProjector
The invention discloses a control method of a blackboard-writing projector mechanism for teaching. The blackboard-writing projector mechanism for teaching comprises a blackboard-writing projection board (1), a background mechanism and a projector (2). The background mechanism is positioned in rear of the blackboard-writing projection board (1) and is close to the blackboard-writing projection board (1). The blackboard-writing projection board (1) is made of transparent materials. The background mechanism comprises a black movable background board (3), a white movable background board (4) and a black fixed background board (5) which are sequentially arranged in rear of the blackboard-writing projection board. The area of the white movable background board (4) is equal to that of the black movable background board (3). The white movable background board (4) and the black movable background board (3) can move leftwards and rightwards under the drive of a power mechanism. By the control method, effective writing area can be increased, the position of the white movable background board can be changed to enable people at different angles to see projected content clearly, and switching of projection and projection states can be realized.
Owner:CHINA JILIANG UNIV

Blackboard projection mechanism for teaching

InactiveCN104330949BRealize switchingIncrease the effective writing areaProjectorsElectrical appliancesComputer engineeringProjector
The invention discloses a blackboard writing projection mechanism for teaching. The blackboard writing projection mechanism comprises a blackboard writing projection plate (1), a background mechanism and a projector (2), wherein the background mechanism is arranged at the rear side of the blackboard writing projection plate (1) and close to the blackboard writing projection plate (1), the blackboard writing projection plate (1) is made of a transparent material, the background mechanism comprises a black movable background plate (3), a white movable background plate (4) and a black fixed background plate (5) which are orderly arranged at the rear side of the blackboard writing projection plate, the areas of the white movable background plate (4) and the black movable background plate (3) are the same, and the white movable background plate (4) and the black movable background plate (3) can move left and right under the driving of a power mechanism. Due to the adoption of the blackboard writing projection mechanism disclosed by the invention, the effective writing area can be increased, the position of the white movable background plate can be changed so that the people at different angles can clearly see the content of the projection, and the projection and the switching of the projection states can be realized.
Owner:CHINA JILIANG UNIV

Blackboard-writing projecting system for teaching

The invention discloses a blackboard-writing projecting system for teaching. The blackboard-writing projecting system comprises a blackboard-writing projecting plate (1), a background mechanism and a projector (2), wherein the background mechanism is positioned at the rear side of the blackboard-writing projecting plate (1) and is close to the blackboard-writing projecting plate (1), the blackboard-writing projecting plate (1) is made of a transparent material, the background mechanism comprises a fixed black background plate (3) and a projection screen plate (4), the projection screen plate (4) is positioned between the fixed black background plate (3) and the blackboard-writing projecting plate (1), the projection screen plate (4) is made of electronically-controlled liquid crystal photochromic glass, the electronically-controlled liquid crystal photochromic glass is transparent when being electrified, and is white when being in power failure, and the projector (2) projects on the electronically-controlled liquid crystal photochromic glass in power failure when projecting. According to the blackboard-writing projecting system, the writing area can be effectively increased, and a projection position can be changed by changing a position of the electronically-controlled liquid crystal photochromic glass or a power failure region, so that persons in different angles can see projected contents clearly.
Owner:CHINA JILIANG UNIV

Terminal equipment

The invention discloses terminal equipment comprising an equipment main body, a color-changing cover plate, and an ultrasonic wave emitter. The equipment main body comprises a control device, and under the control of the control device, the ultrasonic wave emitter is used to emit ultrasonic signals, and is opposite to the color-changing cover plate. The color-changing cover plate comprises a baselayer, a color-changing layer, and a covering layer. The color-changing layer is disposed between the base layer and the covering layer, and the color-changing layer comprises a base material and structural colorful particles dispersed in the base material, and the covering layer is a light-transmitting layer, and in addition, the base layer is connected with the equipment main body. By adopting the abovementioned technical scheme, a problem of a color-changing technology adopted by conventional equipment terminals of complicated structure can be solved.
Owner:VIVO MOBILE COMM CO LTD

Control method of projection system for teaching writing on blackboard

InactiveCN104345539BIncrease the effective writing areaMeet the needs of useProjectorsElectrical appliancesProjection systemColor glass
The invention discloses a control method of a teaching blackboard writing projection system. The teaching blackboard writing projection system comprises a backboard writing projection board (1), a background mechanism and a projector (2), wherein the background mechanism is positioned at the back side of the backboard writing projection board (1) and is arranged near the backboard writing projection board (1), the backboard writing projection board (1) is made of transparent material, the background mechanism comprises a fixed black background board (3) and a projection curtain board (4), the projection curtain board (4) is positioned between the fixed black background board (3) and the backboard writing projection board (1), the projection curtain board (4) is made of electrically-controlled liquid crystal coloring glass, the electrically-controlled liquid crystal coloring glass is transparent in the energizing process, and is white in the deenergizing process, and the projector (2) is used for projecting onto the deenergized electrically-controlled liquid crystal coloring glass in the projection process. The teaching blackboard writing projection system has the advantages that the effective writing area is increased, the projection position is changed by changing the electrically-controlled liquid crystal coloring glass area or the deenergizing area, and people at different directions can clearly watch the project content.
Owner:CHINA JILIANG UNIV
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