69results about How to "Adjust light transmittance" patented technology

The invention relates to a semitransparent fluorescent powder/glass composite luminescent ceramic wafer and a preparation method thereof. The semitransparent fluorescent powder/glass composite luminescent ceramic wafer is obtained by carrying out 'pelletizing, compression moulding and sintering' on fluorescent powder and low-melting-point glass powder, wherein content of the fluorescent powder is 30-85wt%, and the content of the low-melting-point glass powder is 70-15wt%. The preparation method of the semitransparent fluorescent powder/glass composite luminescent ceramic wafer comprises the following steps: firstly, uniformly mixing fluorescent powder with glass powder in certain proportion, and adding a binding agent required by pelletizing and demoulding, so that pelletized powder of 60-100 meshes is obtained; secondly, carrying out compression moulding on the obtained pelletized powder by virtue of a mould, so that a green body of a certain shape is obtained; thirdly, carrying out heat treatment, namely carrying out glue drainage on the green body for 2-4 hours at the temperature of 300-395 DEG C, and sintering for 1-2 hours at the temperature of 395-410 DEG C, wherein the whole heat treatment process is carried out in the air atmosphere; and finally the fluorescent powder/glass composite luminescent ceramic wafer is obtained.

The invention discloses a display switching method and a wearable display device. The method includes: adjusting light transmittance of a light transmitting unit according to a display switching instruction inputted by a user so as to control the light transmitting unit to perform light transmission or shading, the light transmitting unit covers a non-display surface of an image display unit in the wearable display device; when the light transmitting unit transmits light, controlling the wearable display device to start an AR (augmented reality) display system; when the light transmitting unit performs shading, controlling the light transmitting unit to start a VR (virtual reality) display system. The problem that the AR display and VR display modes are not compatible is solved, and purchase cost is lowered for users.

The invention discloses a front windscreen light transmittance adjusting method and device and is applied to the technical field of automobiles to solve the problem that a light ray intensity adjusting method greatly influences light rays in vehicles after adjusting the light ray intensity in the prior art. The method specifically comprises the steps as follows: acquiring an eyeball image frame sequence, acquired by at least two image acquisition devices arranged in the vehicle, of a driver in a vehicle; determining a motion trail of the eyesight of the driver on a front windscreen of the vehicle according to the eyeball image frame sequence; determining areas, matched with the motion trail, in multiple areas of the front windscreen, and adjusting light transmittance of the front windscreen in the areas matched with the motion trail respectively. Thus, the light transmittance of corresponding areas of the front windscreen is reduced according to the motion trail of the eyesight of thedriver on the front windscreen, the effects of strong light on vision of the driver can be reduced, besides, the light transmittance of the rest areas of the front windscreen is kept unchanged, and the effects of adjustment of the light transmittance on light rays in the vehicle can be reduced.

The invention discloses a naked eye three-dimensional virtual reality display helmet. The naked eye three-dimensional virtual reality display helmet comprises a head mounted casing, a naked eye three-dimensional display screen which is arranged in the head mounted casing and is used for displaying naked eye three-dimensional frames, and a reflector set which is arranged in the casing and is used for reflecting the naked eye three-dimensional frames displayed by the naked eye three-dimensional display screen to the user field space at the predetermined angle, wherein the reflector set can further adjust light transmittance, and thereby the light proportion of the environment light entering the user field space through the reflector set is controlled. The naked eye three-dimensional virtualreality display helmet is advantaged in that light transmittance of the reflector set can be adjusted, a user is convenient to control and observe the external environment, switching between virtual reality display and augmented reality display can be realized, and the naked eye three-dimensional virtual reality display helmet further has advantages of simple structure, convenient switching, cleardisplay effect, no distortion and no delay.

The invention relates to all-weather field operation eye protective glasses, and belongs to constructional detection equipment in electric power industries. The all-weather field operation eye protective glasses consist of a protective helmet, eye protective glasses and a control circuit board, wherein the eye protective glasses are divided into an outer protective eyeglass, a liquid crystal display (LCD) lens and an inner protective eyeglass; a backlight part of the LCD lens is provided with a transparent thin film transistor and is connected with an LCD driving circuit and a control circuit; the control circuit board is also connected with a light sensor, a manually-regulated key, an infrared reflector lamp and an infrared camera respectively; the circuits are powered by a battery in the helmet; and the inner protective eyeglass and the outer protective eyeglass are made of polycarbonate and are pressed and bonded with the LCD lens to form an integrated structure. The all-weather field operation eye protective glasses have the advantages that: light control grades are set in the control circuit, control voltage is outputted along with the intensity of light in the daytime, and the light transmittance of the LCD lens is regulated; and when external light is weakened to a certain numerical value, infrared illumination and the infrared camera are started automatically, and the LCD lens is used as an image display to exert the effect of night vision.

The invention discloses a device for regulating distances between seedling grippers of a rice transplanter. The device comprises a seedling gripper main frame and a seedling gripper assembly, the seedling gripper main frame has a substantially reverse U-shaped structure, the seedling gripper assembly is connected between two side boards of the seedling gripper main frame through a gripper lockingcylinder, the gripper locking cylinder runs through base boards of the seedling gripper assembly, fixed seedling grippers and movable seedling grippers are symmetrically arranged on the seedling gripper assembly, positions, located at two sides of each base board, of the gripper locking cylinder are separately and symmetrically provided with a limit sleeve ring in a sleeving manner, a protective rubber flap is installed on each corresponding inner side surface of the fixed seedling grippers and the movable seedling grippers, the top end of each fixed seedling gripper is provided with a north pole of a magnet, and the top end of each movable seedling gripper corresponding to the top end of one corresponding fixed seedling gripper is provided with a south pole of a magnet, each fixed seedling gripper is fixedly installed on one end of the outer surface of one base board through a flange board, the bottom end of each movable seedling stripper is connected with an embedded sleeve plate through a hinge, each embedded sleeve plate is connected with one corresponding base board, and each flange board is connected with one corresponding embedded sleeve plate through a threaded distance column, thus people can regulate the distances between the seedling grippers conveniently.

The invention discloses intelligent control glass, which comprises an outer glass layer (1) and an inner glass layer (2), wherein a hollow sealed sandwich layer (6) is formed between the outer glass layer (1) and the inner glass layer (2); sealing edge strips (4) are arranged on the peripheries of the outer glass layer (1) and the inner glass layer (2); a blind window (3) is arranged in the sandwich layer (6); a control mechanism of the blind window (3) is arranged in the sealing edge strips (4); sufficient rare gas is inflated into the sealed sandwich layer (6); a positive electrode (01) and a negative electrode (02) are arranged on the sealing edge strips (4); and the positive electrode (01) and negative electrode (02) are arranged on the opposite sealing edge strips (4). The intelligent control glass using the technical scheme has the advantages that the structure is simple; the intelligent control glass is suitable for large-range popularization; the light transmission rate of the glass can be changed through installing the blind window and inflating the rare gas in the glass sandwich layer; and meanwhile, various colors can be displayed.

The invention provides dimming glass, and belongs to the technical field of dimming glass. The dimming glass comprises at least one glass module, a first touch layer and a control unit. Each of the atleast one glass module comprises a first substrate and a second substrate which are oppositely arranged, and a dimming layer; the dimming layer is configured to adjust the light transmittance according to an electric field generated between the first substrate and the second substrate; the first touch layer is arranged in the first substrate of the outermost glass module; and the control unit iselectrically connected with the first touch layer and used for receiving a touch signal input by the first touch layer and adjusting the light transmittance of the dimming layer according to the touchsignal.

The invention discloses a color-changing type smart window. The color-changing type smart window comprises a glass body. The glass body is composed of two pieces of parallel transparent glass. A transparent inner cavity is formed by the two pieces of parallel transparent glass. A mounting frame is arranged on the outer side of the glass body. A first buffer box and a second buffer box are correspondingly arranged on the left side and the right side of the mounting frame. The first buffer box communicates with the transparent inner cavity through multiple water outlet pipes. The second buffer box communicates with the transparent inner cavity through multiple water inlet pipes. The lower end of the second buffer box is connected with a material distribution box through a water supply pipe. A second throttling valve is arranged on the water supply pipe. A mixing motor is arranged at the upper end of the material distribution box. The output end of the mixing motor is connected with a mixing rod located in the material distribution box. The color-changing type smart window is simple and reasonable in structure, the cooling of the glass body is facilitated, and accordingly the service life of the device can be prolonged; and meanwhile the light transmittance performance of the glass body can be adjusted, so that the light blocking function is played, it is not necessary to cooperate with a curtain, and the practicability is high.

The invention discloses temperature adjustment glass which comprises an upper glass plate and a lower glass plate same in area, wherein a vacuum cavity is formed between the upper glass plate and the lower glass plate after the peripheries of the upper glass plate and the lower glass plate are sealed with epoxy resin glue; an optical glass layer is adhered to a part, positioned in the vacuum cavity, of the lower surface of the upper glass plate; tiny crystal particles of silver halide and copper oxide are contained in the optical glass layer; meanwhile, a liquid crystal layer is adhered to a part, positioned in the vacuum cavity, of the upper surface of the lower glass plate and connected with a PLC (programmable logic controller) positioned outside the temperature adjustment glass; the PLC is connected with a temperature sensor. The temperature adjustment glass has the advantages of relatively good temperature preservation and adjustment effects.

The invention provides black printing ink which comprises dissoluble polyimide, a flame retardant, resin, DMAC, carbon black and talc powder. A black coverage film prepared by the black printing ink is relatively low in price and wide in source of production raw materials, and performance such as black degree, transmissivity, shading property, matte degree and the like can be adjusted according todemands of clients. The black coverage film prepared by the black printing ink has the advantages that the black printing ink layer is separated from a glue layer for protecting wires, so that the problem of short circuit among the protected wires in a circuit board can be solved effectively.

Disclosed is an apparatus for controlling tint of a display panel provided on a vehicle window to adjust light transmittance depending on ambient light conditions, thereby overcoming difficulties in securing a clear view, such as glare caused by sunlight or high-beam headlamps of a vehicle in the opposite direction lane during driving. The apparatus includes: a display panel film attached to a window glass of the vehicle, and having an adjustable tint; an operation unit setting the tint of the display panel film; a detection sensor unit quantifying a change in an external environment into data; and a control unit adjusting the tint of the display panel film according to a preset program by using the data received from the detection sensor unit.

The invention provides a curtain capable of intelligently adjusting light transmittance and an adjusting method, and belongs to the technical field of articles of daily use, the curtain capable of intelligently adjusting light transmittance comprises a first frame, the side end of the first frame is fixedly connected with a second frame, and the side end of the second frame is fixedly connected with a third frame; the multiple connecting grooves are symmetrically formed in the upper end of the second frame and the upper end of the third frame correspondingly; each curtain assembly comprises a first curtain body, a second curtain body and a plurality of first sliding blocks, the first sliding blocks are slidably connected into two of the connecting grooves respectively, the first curtain body and the second curtain body are fixedly connected to the lower ends of the first sliding blocks respectively, and when the first curtain body and the second curtain body are closed at the same time, the first curtain body and the second curtain body are closed. Outside natural light cannot irradiate the interior of a room, the second curtain is controlled to be closed through the adjusting assembly, and part of outside light can penetrate through the first curtain to irradiate the interior of the room; the device is used for adjusting the light transmittance of the curtain and is convenient to operate and use.

According to the flexible film with the light transmittance capable of being regulated and controlled through shear strain, the flexible film is a nano chain-gel composite flexible film, and the nano chain-gel composite flexible film is obtained by fixing a one-dimensional nano chain in a flexible gel matrix in a certain orientation direction through a magnetic field; the nano chain comprises superparamagnetic nano particles and belongs to a stable one-dimensional magnetic nano chain with a core-shell structure; the light transmission capability of the flexible film can be regulated and controlled by applying shear strain, and when the shear strain is removed, the light transmission capability of the flexible film is recovered to the light transmission capability without the shear strain along with the return of the orientation of the nano chain; in addition, the shear strain is small strain which is far less than the traditional tensile strain which is at least 30% or above. According to the flexible film, the optical functional material of which the light transmission capability is adjusted through small strain, the corresponding window and the preparation method are realized.

The invention belongs to the field of intelligent control, particularly relates to an intelligent adjusting method, system and device for building electrochromic glass, and aims to solve the problem of intelligent adjustment of the electrochromic glass. The method provided by the invention comprises the following steps of: obtaining environmental parameters of a preset category at a t moment in the building, and obtaining weather prediction data of an outdoor preset category at a t + 1 moment, based on a temperature prediction model, according to the obtained predicted temperature in the building at the t + 1 moment under each light transmittance of the electrochromic glass, selecting to approach the light transmittance delta t corresponding to the predicted temperature based on a preset expected target temperature; adjusting the light transmittance of the electrochromic glass based on the selected light transmittance delta t; obtaining environmental parameters of a preset category ata moment t + 1, and training the temperature prediction model and updating model parameters in combination with delta t; and making t = t + 1, and repeating the above steps. According to the invention, the light transmittance of the electrochromic glass can be intelligently adjusted, so that the aim of adjusting environmental parameters in a building is fulfilled.

The invention discloses a preparation method of a cellulose nano-whisker/graphene flexible transparent conductive film. Tea-oil tree shell is taken as the raw material, and tea-oil tree shell cellulose nano-whiskers are obtained by separation through the main steps of cooking through an alkali method, alkali treatment, purification, bleaching, acidolysis, centrifuging, dispersing and the like; theobtained cellulose nano-whiskers are large in specific surface area, high in Young modulus and high in reactivity; next, suction filtration is performed to obtain a substrate film which is uniform and smooth in surface, and relatively high in flexibility, light transmission, mechanical property and thermodynamic property; by taking graphene as a conductive matrix, and under the effect of CTAB, the graphene is uniformly paved on the surface of the substrate film through a suction filtration method to form a uniform and a continuous conductive layer; and by controlling the adding amount of graphene and the number of layers of graphene on the surface of the film, the prepared flexible transparent conductive film has relatively high flexibility, foldable property, elasticity, rigidity and thermal stability and bright application prospect.

The invention discloses a display terminal control method. The method comprises the following steps: acquiring a target visual angle of a target user watching a display terminal; determining a target pixel voltage corresponding to the target view angle in a pixel voltage association table, wherein the pixel voltage association table comprises different view angles and pixel voltages corresponding to the different view angles; and controlling a pixel circuit in the display terminal by using the target pixel voltage. The invention further discloses a display terminal control device, the display terminal and a computer readable storage medium. The pixel circuit in the display terminal is controlled by using the target pixel voltage corresponding to the target view angle so as to adjust the light transmittance of the pixel, so that the display terminal has a relatively good display effect under the target view angle, and the user experience is improved.