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.

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 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.

This invention relates to one light conductive board, which comprises light incidence surface and light in surface, wherein, the bottom surface comprises first area of light incidence and second and third areas on both sides of first area; the first, second and third areas are set with multiple first V shape tanks, second and third tanks; the multiple first V shape extending direction is parallel to the light in surface; the second and third tanks extending direction is crossed to the light in surface and first area and the multiple second tanks and third V tanks are separately between two cross points.

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, which comprises at least one set of backlight generating components, each set of backlight generating components includes an incident laser mechanism, and each set of backlight generating components also includes a lens, a plane reflecting mirror and a conical mirror, The lens is used to collimate and shape the incident laser beam of the incident laser mechanism into a first quasi-parallel laser beam; the plane reflective mirror is used to reflect and divert the first quasi-parallel laser beam into a second quasi-parallel laser beam; the conical mirror is used to diverge the second quasi-parallel light beam into a backlight. The laser backlight device used in the display system provided by the present invention has only three parts, the lens, the plane reflective mirror and the conical mirror, which occupies less space, so that the display screen can be made thinner, and at the same time, the conical mirror can Realize 180-degree divergence of incident light, high reflection efficiency, and large divergence angle, meeting the backlight requirements of large-size displays.

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 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 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.