37results about How to "Strong light concentrating" patented technology

A tunable Fabry-Perot filter that is less sensitive to angle of incidence is formed by replacing the cavity (air gap) with a partitioned cavity that has an effective refractive index greater than one. The partitioned cavity includes a pair of partitioned cavity dielectric layers formed on the reflectors on either side of the variable air gap. Each of the dielectric layers has an optical thickness that is less than one fourth the shortest wavelength in the tuning range of the filter. The resulting three-layer partitioned cavity has an effective optical thickness substantially equal to an integral multiple (m) of one half the transmitted wavelength within the tuning range of the filter.

The invention discloses a strip-shaped spreadlight lens and an LED strip light. The LED strip light comprises at least one LED and a strip-shaped spreadlight lens. The strip-shaped spreadlight lens comprises multiple optical axes, an incident surface, a first convex lens emergent surface and a second convex lens emergent surface, wherein the optical axes are arranged into a row at intervals in parallel, the radius of curvature of a contour line on the first convex lens emergent surface becomes smaller gradually towards the optical axes, and the radius of curvature of a contour line on the second convex lens emergent surface becomes smaller gradually in the direction away from the optical axes; the minimum radius of curvature of the contour line on the first convex lens emergent surface is larger than the maximum radius of curvature of the contour line on the second convex lens emergent surface; light passing through the first convex lens emergent surface shines in the vicinity, and light passing through the second convex lens emergent surface shines in the distance; the number of the LEDs is identical with that of the optical axes, and each LED is arranged along the corresponding optical axis. According to the LED strip light, the illuminance obtained when light shines in the distance is identical with that obtained when light shines in the vicinity.

A slim line type LED light-emitting device comprises a circuit board. At least one power input assembly, a connecting circuit and one or more LED strips are arranged on the circuit board. The plurality of LED strips can be closely arranged or specifically arranged at intervals according to design requirements. The LED strip is formed by regularly and tightly arranging a plurality of LED chips of the same kind on the upper layer of a substrate through the processes of die bonding, wire bonding, forming packaging and cutting. The slim line type LED light-emitting device is characterized in thatfirstly, the LED strip is provided with a strip-shaped condensing lens, the condensing lens is integrally formed when the LED strip is formed and packaged, and therefore the slim line type LED light-emitting device is continuously and evenly distributed in the longitudinal light-emitting vision and transversely condensed into a small light-emitting angle, and the forward light-emitting brightnessof the slim line type LED light-emitting device is enhanced; and secondly, the size of the cross section of the LED strip condensing lens is very small, so that the slim linear LED light-emitting device is applied to a linear lamp designed by a light guide sheet, and the effective utilization rate of emitted light is increased.

The object of the invention is a headlight for a motor vehicle comprising a reflector of the ellipsoidal type; a light source placed at a first focus of the reflector; a convergent optical means whose object focus is situated close to the second focus of the reflector; a first shield situated close to the second focus of the reflector and oriented transversely to the optical axis of the headlight with a substantially horizontal top edge; and a second shield substantially parallel to the first shield but offset along the optical axis in order to be situated closer to the optical means. The second shield is fixed to the first in order to form a single-piece assembly with a transverse section substantially in a V or U shape, the two arms of which correspond to the two shields.

The invention discloses a solar heat collection device. The solar heat collection device comprises a solar heat collection assembly, a top cover plate assembly and a bottom box assembly. The top coverplate assembly and the bottom box assembly are in inserting connection. The solar heat collection assembly is sleeved with the top cover plate assembly, so that the solar heat collection assembly islocated in a box formed by enabling the top cover plate assembly and the bottom box assembly to be in inserting connection. The solar heat collection device provided by the invention is simple in structural design and convenient to use, the sealing performance of the device is high through an inserting connection and sleeving connection combined mode, mounting and dismounting are convenient, the maintenance efficiency is improved, in addition, the sealing performance after maintenance can still be kept in an optimal state, meanwhile, the light concentrating performance is high, the heat absorption efficiency of a solar panel is improved, market using requirements are met, and the device is suitable for being popularized widely.

The invention discloses a side-light type backlight and a display device. The side-light type backlight is capable of achieving obvious optical partitions of the scanning backlight technology. The backlight comprises a back plate, light sources and light pipes, a plurality of mutually parallel grooves are arranged on the back plate, one light pipe is arranged in each groove, and each light source is arranged at least one end of each light pipe.

The present invention discloses a concentrating type light emitting diode. The concentrating type light emitting diode comprises a diode body which is internally provided with a cathode and an anode, and the concentrating type light emitting diode is characterized in that the cathode is provided with a concave surface-shaped concentrating groove, an opening is arranged at the bottom of the concentrating groove, and the anode is arranged at the opening of the bottom of the concentrating groove; and the concave surface of the concentrating groove is provided with a plurality of emission bowls, and wires are connected between the anode and each emission bowl. The emission bowls are symmetrically arranged on the concave surface of the concentrating groove around the center of the concave surface. The concave surface of the concentrating groove is a concave cambered surface or a tapered concave surface. The radius of curvature of the concave cambered surface is 1-1.5mm. The included angle between two opposite sides of the tapered concave surface is 45-60 degrees. The concave surface of the concentrating groove is plated with a silver layer. The upper end of the anode is a turbinate structure. The wires are sliver wires. The concentrating type light emitting diode is simple in structure and high in concentrating capability and can generate higher illumination intensity. The design of the multiple emission bowls can reduce the production disability rate and the usage disability rate and reduce the production difficulty and the usage difficulty.

An optical diffusing film and a LCD backlight using the same are provided. The optical diffusing film comprises a transparent substrate made of an optically transparent material with a refractive index of 1.4 to 1.8, and a diffusing coating with a refractive index of 1.4 to 1.7 disposed on an upper surface of the transparent substrate, wherein diffusing particles with a refractive index of 1.4 to 1.7 are distributed in the diffusing coating, and the diffusing particles are in close contact with each other, the diffusing coating has a thickness of ½ to ⅔ of the largest particle size of the diffusing particles, and the coating density of the diffusing particles is 103 to 106 particles per square millimeter.

The invention relates to a waste head and solar energy multifunctional hybrid power generator device. A Fresnel lens (2) is connected with the top end of a pipe (1). The inner part of the pipe (1) is a cube. The bottom end of the pipe (1) is connected with a steel pipe (3). The steel pipe (3) is internally provided with a set of porous media (4). A first porous medium (4) is arranged from top to bottom and is arranged at the focus of the Fresnel lens (2). The bottom end of the steel pipe (3) is connected with a solid cylinder (5). The solid cylinder (5) is provided with a frustum-shaped through opening (6). Batteries are uniformly distributed on the external surface of the steel pipe (3). The waste head and solar energy multifunctional hybrid power generator device is used for multifunctional hybrid power generation.