40results about How to "Expand the divergence angle" patented technology

The invention provides a quantum dot light-emitting device packaging piece, a backlight module and a liquid crystal display device. A wavelength conversion layer is formed on the periphery of a light-emitting device, exciting light emitted by the light-emitting device can be produced into wavelength conversion light, a diffusion particle layer is formed on the side of the inner surface of the wavelength conversion layer, a sealing component is formed on the surface of the wavelength conversion layer and is used for sealing the wavelength conversion layer, and the problem that the colors of emergent rays at different positions of a quantum dot light source device in related technologies are difference is overcome.

The invention provides a light controllable type quantum dot backlight source. The light controllable type quantum dot backlight source comprises a blue light source module and an optical plate, wherein the blue light source module and the optical plate are sequentially stacked. A quantum dot layer is arranged on the in-light end surface of the optical plate, and a microstructure is arranged on the out-light end surface of the optical plate. According to the light controllable type quantum dot backlight source, the high precision ink spraying printing technology is adopted, thus a quantum dot convex len is formed on the end surface of the optical plate; the light effect and divergence angle of dot light source are improved; the utilization rate of quantum dot materials is increased. According to the light type of the light source on the out-light surface, the size and density of pixels in the small partition are adjusted; the control on the uniformity of a backlight plate is realized. The concentration of red and green quantum dot ink, the relative proportion and resolution rate distribution of red and green quantum dots are adjusted; the accuracy control on the chromaticity, color temperature and wavelength of emitting light are realized. The shape, size and depth of the superfine microstructure optical plate surface structure are adjusted; high precision ink spraying printing design is combined and the overall light effect of the light controllable type quantum dot backlight source is improved.

The invention provides a lampshade, which is used for accommodating a transparent body of an illuminating light source, wherein the inner surface and the outer surface of the transparent body are provided with a plurality of scattered striations so that light passing through the lampshade is uniformly scattered. The invention further provides an illuminating lamp applying the lampshade. The lampshade and the illuminating lamp have the advantages of light scattering uniformity, high brightness and high scattering angle.

The invention provides laser projection equipment, which is characterized in that a laser assembly used by the laser projection equipment emits a first-color laser beam, a second-color laser beam anda third-color laser beam, wherein the angles of the light spot beams of the three laser beams are different; a light combining lens group at least comprises a third light combining lens, the first-color laser beam and the second-color laser beam enter the first surface of the third light combining lens and are transmitted through the first surface, and the first surface is provided with a convex microstructure; the third-color laser beam enters the second surface of the third light combining lens, and is reflected to a light outlet of a light source; and the beam angles of the first-color laser beam and the second-color laser beam transmitted through the first surface of the third light combining lens are increased, the angle difference between the first-color laser beam and the second-color laser beam and the angle of the third-color laser beam is reduced, and the overlap ratio of laser spots of three colors is improved, so that the color uniformity of light combining spots is improved, and the display quality of a projection picture is improved.

The invention discloses a light guide plate and a method for manufacturing the same. The light guide plate comprises a main body possessing a light incoming side, a plurality of main micro-structures arranged at the light incoming side, and a plurality of secondary micro-structures distributed on the surfaces of the main micro-structures. The maximum size of the secondary micro-structures is greater than 0 nanometer and less than 100 nanometers. By utilizing the secondary micro-structures, the light full-reflection phenomenon can be reduced effectively, the loss when the light is radiated to the light guide plate is avoided; and by increasing the dissipation angle when the light is radiated to the light guide plate, the phenomenon can be relieved that light beams are concentrated at the front end of a light source to cause the light outgoing surface of the light guide plate to generate bright and dark belts.

A backlight module comprises a light guide plate and a plurality of point light sources. The light guide plate comprises a first surface facing the point light sources and a plurality of protrusions arranged on the first surface. The protrusions correspond to the point light sources. Each protrusion comprises a second surface facing the point light sources; the second surface is provided with a plurality of microstructures, and thus, light emitted by the point light sources enter the light guide plate through the second surface, at a larger divergence angle. In addition, the invention further provides a display device with the backlight module.

This invention discloses a area light source which contains a light conductive board and at least a LED, said light conductive board contains at least a light incidence face and light emergent face, at least one LED is set corresponding to said light conductive board, said LED contains a substrate, a lighting chip and a package structure which covers said lighting chip to form a emergent face and is doped with plurality of fluorescent micro-grain.

The invention discloses a lens design method and system and line lamp lens.An exit surface of the lens is a stripe curved surface formed by a plurality of stripes arranged in parallel, the design method comprises a method for designing section curves of the stripes, and the method comprises the following steps: configuring a light distribution angle and initial size data, wherein the initial sizedata comprises height data of the lens and width data of the stripes; configuring the number of refraction points on the section curve, generating incident light data corresponding to each refractionpoint based on the width data, and generating emergent light data corresponding to each refraction point based on the light distribution angle; taking the vertex or the lowest point of each stripe asan initial refraction point, determining the coordinate of the initial refraction point based on the height data, and calculating the refraction point coordinate of each refraction point in sequence based on the coordinate of the initial refraction point, the incident light data and the emergent light data; and generating a cross-section curve of the stripes based on the coordinates of the refraction points. According to the lens design method, the corresponding stripe curved surface can be designed based on the specified light distribution angle.

The invention discloses a single-transverse-mode linear polarization state large-divergence-angle laser light source for interference measurement. The single-transverse-mode linear polarization statelarge-divergence-angle laser light source comprises a laser, an optical fiber coupler, a standard single-mode optical fiber, a polarization controller and a large-numerical-aperture optical fiber; laser emitted by the laser is coupled into the standard single-mode optical fiber through the optical fiber coupler; the single-mode optical fiber passes through the polarization controller and then is connected with the large-numerical-aperture optical fiber through a mode field matching welding point; and finally the conducted laser is output through an optical fiber tapering output end. The laseris transitionally coupled to the large-numerical-aperture optical fiber by using the standard single-mode optical fiber; the laser transmission efficiency is improved through the mode field matching welding point; the single-mode optical fiber is coiled based on the stress birefringence principle, and the polarization state of the transmission laser of dissimilar welding optical fibers can be controlled; the output end of the large-numerical-aperture optical fiber is tapered, so that the light-emitting area of the output end can be reduced, and a laser divergence angle can be improved; finally, a large-divergence-angle laser light source with a single transverse mode and a linear polarization state is obtained, so that the background uniformity of interference fringes in the interference measurement is improved.

The invention is suitable for the technical field of display, and provides a lamplight assembly and a display device. The lamplight assembly comprises a shell, a light guide part and a light source plate, the shell is provided with a light outlet through hole, the light guide part comprises a light inlet part and a light outlet part which are connected, the light inlet part is provided with a light inlet face, a plurality of grooves are formed in the light inlet face at intervals, the light outlet part penetrates through the light outlet through hole, and is provided with a light outlet surface positioned beyond the light outlet through hole, and the light source plate is arranged on the shell and comprises a plurality of light-emitting elements arranged in sequence, and the light-emitting elements face the grooves respectively. The divergence angle of light entering the light guide part is increased, a lamp shadow dark area is prevented from being formed between every two adjacent light-emitting elements, the light emitting effect is guaranteed on the basis that fewer light-emitting elements are used, the size of the light guide part is reduced, the material cost of the light guide part is reduced, and light source losses are reduced. According to the display device with the light assembly, the lamp shadow dark area can be prevented from being formed between every two adjacent light-emitting elements on the basis that fewer light-emitting elements are used, the cost is low, and the size is small.

The invention discloses projection equipment, and belongs to the technical field of photoelectricity. The projection equipment comprises a light source, a light valve, a lens, a first convex lens located in a light path between the light source and the light valve, a first diffusion sheet, a second convex lens and a dodging component, wherein the focuses of the first convex lens and the second convex lens coincide, the coincident focuses are located between the first convex lens and the second convex lens, the first diffusion sheet is located at the focus, the first convex lens is used for converging light rays emitted by the light source to the first diffusion sheet, the first diffusion sheet is used for expanding the divergence angle of the incident light rays and then emitting the incident light rays to the second convex lens, the second convex lens is used for emitting the incident light rays to the dodging component, the dodging component is used for dodging the incident light rays and then emitting the light rays to the light valve, and the light spot area on the first convex lens is larger than that on the second convex lens. According to the invention, the problem that the display effect of the projection picture of the projection equipment is poor is solved; and the equipment is used for projection.

The invention discloses a double 90-degree deflection quadrupole plasma mass spectrometer in the technical field of plasma mass spectrometers. Double 90-degree ion deflection focusing assemblies are introduced, so that positive ions pass through a first 90-degree deflection focusing assembly after passing through an interception cone and are separated from electrons and neutral particles in a large amount of ICP ; the separated ions pass through a collision pool and then pass through a second 90-degree deflection focusing assembly, to-be-detected positive ions are separated from interference components newly introduced into the collision pool, and finally the to-be-detected positive ions reach a quadrupole mass analyzer and a detection system for detection of the to-be-detected ions. According to the invention, background noise of instruments is greatly reduced, irrelevant components cannot enter a precise quadrupole separation system, so that the quadrupole separation system and a detection system are not polluted, the device does not need to be frequently cleaned and maintained, long-term reliability of an instrument is ensured, and great convenience is brought to a user.

The invention discloses a laser backlight device for a display system. The laser backlight device comprises at least one set of backlight generating assembly, wherein each set of backlight generating assembly comprises an incident laser mechanism, and each set of backlight generating assembly further comprises a lens, a planar reflecting mirror plane and a conical mirror plane, wherein the lens is used for collimating and shaping an incident laser beam of the incident laser mechanism into a first quasi-parallel laser beam; the planar reflecting mirror plane is used for reflecting the first quasi-parallel laser beam and turning the first quasi-parallel laser beam into a second quasi-parallel; and the conical mirror plane is used for diverging the second quasi-parallel light beam into a backlight. The laser backlight device for the display system only comprises the lens, the planar reflecting mirror plane and the conical mirror plane, the occupied space is small, so that the thickness of a display screen can be reduced; and meanwhile, the conical mirror plane can be used for enabling the incident light beam to be diverged by 180 degrees, the reflection efficiency is high, the divergence angle is large, and the requirement of the backlight source of a large-size display screen can be met.

The invention discloses a low-on-resistance groove type MOSFET structure and a preparation method thereof. The invention relates to the semiconductor technology. The low-on-resistance trench type MOSFET structure comprises a semiconductor substrate and also comprises a semiconductor epitaxial layer main body, a diaphragm layer and a metal covering layer are sequentially fixed on the semiconductorsubstrate, grooves which are arranged tightly and are of small channel structures are formed in the semiconductor epitaxial layer main body and located on a lower portion of the diaphragm layer in anarray mode, at least one annular groove is formed in each groove in the length direction of the groove, and the grooves and the annular grooves are filled with polycrystalline silicon. The bottoms ofthe grooves and the outer sides of the annular grooves are respectively provided with first ion distribution regions and second ion distribution regions of which the ion concentration is higher than that of the semiconductor epitaxial layer main body. The invention further provides the preparation method of the low-on-resistance trench MOSFET structure, the distribution of current in the whole epitaxial layer is more uniform, and the divergence angle is larger such that the on-resistance of the device is reduced, and the overall breakdown voltage of the device is improved.

The invention provides an LED emergency lighting lens conforming to European standard, which comprises a main body, the main body is provided with a rotational symmetry axis, the main body comprises a containing cavity capable of containing an LED light source, an incident plane forming a light inlet cavity, an emergent plane and a medium located between the incident plane and the emergent plane, the incident plane and the emergent plane are both free-form surfaces, and the medium is provided with a light source. The incident plane and the emergent plane are rotationally symmetrical along the rotational symmetry axis, the thickness of the medium located at the rotational symmetry axis is minimum, and the thickness of the medium is increased along with increasing of the distance between the medium and the rotational symmetry axis. The incident surface and the emergent surface both adopt the free-form surfaces, and the thickness of the medium is increased along with the increase of the distance from the medium to the rotational symmetry axis, so that a larger divergence angle is achieved on the premise of meeting glare limitation, the lamp distribution distance can be increased, the lamp distribution number can be reduced, and the cost can be reduced.

The invention provides a lamp bead module, a backlight module and electronic equipment, the lamp bead module comprises a support and a bowl cup arranged in the support, a wafer is arranged in the bowl cup, the bowl cup is filled with a first packaging adhesive, the first packaging adhesive covers the wafer, one side of the first packaging adhesive is provided with a second packaging adhesive, and the second packaging adhesive is in a convex lens shape. The second packaging adhesive is arranged on the light emitting side of the wafer, the second packaging adhesive is arranged on the side, away from the wafer, of the first packaging adhesive, a step groove is formed in the edge of the side, away from the wafer, of the bowl cup, and the second packaging adhesive covers the step groove. According to the lamp bead module, the bowl cup is filled with the first packaging adhesive, and the convex-lens-shaped second packaging adhesive is further arranged on the outer side of the first packaging adhesive; specifically, the second packaging adhesive is arranged to form the ball head to replace an optical lens in the prior art, the limitation of the thickness of the secondary optical lens is removed, so that the low light mixing distance is achieved; and the light and thin design of the product is facilitated.

The invention discloses a surface plasma resonance optical waveguide sensor based on dual reflectors, which comprises an input waveguide array, a free propagation area, two metal sensing layers, an output waveguide array and a detector array, wherein the two metal sensing layers are plated on a reflection end plane and a reflection end curve of the free propagation area; the two metal sensing layers are etched with deep etched grooves; incident light is guided from a waveguide in the input waveguide array, enters one end of the free propagation area, and reflected by the reflection end plane and the reflection end curve of the free propagation area, and finally arrives at the detector array through the output waveguide array. By virtue of two reflectors, the detecting precision of the sensor is greatly improved; the sensor can be used to detect two substances at the same time, so that much detecting time can be saved; the curve is taken as the reflector, so that the detecting range and the detecting precision are improved; the space distance required for propagation is reduced; and the size of the sensor is greatly reduced.

A cathode ray tube has a low focus degradation, optimum focus characteristic and improved resolution by optimizing a relation between a horizontal inside diameter of a rim portion, which is a common opening portion of main lens forming electrodes for focusing electron beams onto a screen, and a horizontal distance between outside end of one outer electron beam passing hole to outside end of the other outer electron beam passing hole of a correction electrode.

The invention discloses an equidistant light distribution lamp. The lamp structurally comprises a mounting groove, an assembling block, an operation box, a base and a connecting plate, the mounting groove is in interference fit with the connecting plate, the mounting groove and the assembling block are of an integrated structure, the assembling block is in clearance fit with the base, the assembling block is mechanically connected with the operation box, the operation box is provided with a shell, a fixing base, a connecting base, a light distributor, an electrode block and an electric bar, the shell is fixedly connected with the fixing base, and the fixing base is movably clamped with the connecting base. The cover body is of a three-quarter spherical cover structure, the light distribution structure is further arranged in the cover body, the cover body extends out of equipment under cooperation of a lifting block, the contact area between the cover body and the outside is increased,and the radian of the light source during divergence is close to the arc shape, so that when the contact area of the cover body of the spherical structure is increased, the equipment can prevent the divergence area of the light source from being reduced, the divergence angle of the light distribution structure is increased accordingly, and the irradiation area of the equipment is increased.

A luminous LED including a base plate, a luminous chip and a package structure. The luminous chip is on the base plate, the package structure coasts the luminous chip and forms a luminous existence face; a radiating grid is set on the luminous existence face; the package structure is made of transparent piezoelectric materials and an extra circuit controls its mechanical deformation.

A cathode ray tube has a low focus degradation, optimum focus characteristic and improved resolution by optimizing a relation between a horizontal inside diameter of a rim portion, which is a common opening portion of main lens forming electrodes for focusing electron beams onto a screen, and a horizontal distance between outside end of one outer electron beam passing hole to outside end of the other outer electron beam passing hole of a correction electrode.

The invention discloses a zoom type infrared lamp and control method as well as an infrared camera, wherein the zoom type infrared lamp comprises a controller, a motor, an infrared lamp camera lens and a parallel infrared generating device which are sequentially connected, wherein the parallel infrared generating device is connected with the controller; the parallel infrared generating device is used for generating parallel infrared light; the infrared lamp camera lens comprises a first convex lens and a second convex lens, wherein the position of one convex lens is fixed, and the position ofthe other convex lens is adjustable, and the first convex lens and the second convex lens are sequentially arranged on a main optical axis at the direction of propagation of an infrared light way; and the controller is used for receiving the current zooming rate information of the infrared camera, and driving the first convex lens / the second convex lens to move from left to right on the main optical axis to adjust the divergence angle of the infrared light ray according to the zooming rate information and the congruent relationship data information of the interval between the prestored zooming rate and the first convex lens as well as the second convex lens. By adopting the zoom type infrared lamp and the control method as well as the infrared camera provided by the invention, the divergence angle of the infrared light ray is simple and convenient to control accurately, and thus the infrared light ray is uniform, and the picture quality of the camera can be improved.

The invention discloses a surface plasma resonance optical waveguide sensor based on dual reflectors, which comprises an input waveguide array, a free propagation area, two metal sensing layers, an output waveguide array and a detector array, wherein the two metal sensing layers are plated on a reflection end plane and a reflection end curve of the free propagation area; the two metal sensing layers are etched with deep etched grooves; incident light is guided from a waveguide in the input waveguide array, enters one end of the free propagation area, and reflected by the reflection end plane and the reflection end curve of the free propagation area, and finally arrives at the detector array through the output waveguide array. By virtue of two reflectors, the detecting precision of the sensor is greatly improved; the sensor can be used to detect two substances at the same time, so that much detecting time can be saved; the curve is taken as the reflector, so that the detecting range and the detecting precision are improved; the space distance required for propagation is reduced; and the size of the sensor is greatly reduced.

The invention discloses a light guide plate, which comprises a substrate, a plurality of lens microstructures and a plurality of dot patterns. The substrate has a light-emitting surface, a bottom surface opposite to the light-emitting surface, and a light-incident surface connected between the light-emitting surface and the bottom surface. These lens microstructures are arranged on the bottom surface of the substrate. These dot patterns are distributed on the lens microstructures, and part of the dot patterns are located at the junction of two adjacent lens microstructures. Under the structural design of the light guide plate of the present invention, the divergence angle of the light source can be effectively increased, the effect of light source scattering can be increased, and the problems of the difference between brightness and darkness of the picture, dark corners of the picture, and dark parts of light output can be improved.

The invention provides an optical signal identification method applied to a gate machine and the gate machine, the gate machine comprises an optical signal sending end and an optical signal receiving end, and the optical signal sending end comprises a plurality of optical signal sending points; the optical signal receiving end comprises a plurality of optical signal receiving points, and the optical signal sending points are in one-to-one correspondence with the optical signal receiving points; the optical signal identification method comprises the following steps: controlling each optical signal sending point to output an optical signal in a time-sharing manner, wherein the projection of the optical signal at the optical signal receiving end covers at least two optical signal receiving points; and the optical signal receiving point sends a corresponding gate control signal according to the receiving condition information of the optical signal by the optical signal receiving point. Therefore, on one hand, the alignment allowance between the light emitter and the light receiver of the gate can be increased, the installation difficulty is reduced, and on the other hand, crosstalk between the optical signals output by the adjacent optical signal sending points after the divergence angle is increased can be avoided.

The invention discloses a bulb lamp structure which comprises a light-emitting source, a casing, an optical diaphragm and a lampshade. The casing is used for containing the light-emitting source. The casing comprises an opening portion. The optical diaphragm comprises a curve face arranged on the opening portion. The lampshade is fixed on the casing, and the optical diaphragm is arranged between the light-emitting source and the lampshade.