Abstract: This disclosure discloses a radiative cooling optical filter, comprising a substrate. One side of the substrate is polished, and the rough side of the substrate is provided with a metal reflective layer. The polished side of the substrate is subsequently provided with the intermediate layers and a top layer. The intermediate layer comprises alternatingly arranged layers A and layers B. The thickness of each layer A and layer B is 50-400 nm. The material of the layer A is silicon dioxide or aluminum oxide, and the material of the layer B is titanium dioxide, silicon nitride or silicon carbide. The material of the top layer is ytterbium fluoride, yttrium fluoride or zinc sulfide. The intermediate layer and the top layer jointly constitute a multi-resonant absorption enhancer in the atmospheric transparent window.

Abstract: This disclosure discloses a radiative cooling optical filter, comprising a substrate. One side of the substrate is polished, and the rough side of the substrate is provided with a metal reflective layer. The polished side of the substrate is subsequently provided with the intermediate layers and a top layer. The intermediate layer comprises alternatingly arranged layers A and layers B. The thickness of each layer A and layer B is 50-400 nm. The material of the layer A is silicon dioxide or aluminum oxide, and the material of the layer B is titanium dioxide, silicon nitride or silicon carbide. The material of the top layer is ytterbium fluoride, yttrium fluoride or zinc sulfide. The intermediate layer and the top layer jointly constitute a multi-resonant absorption enhancer in the atmospheric transparent window.

Abstract: In an implementation, providing service information is described. Current scenario information of a client device is obtained by a server and from a client device. Service information matching the current scenario information of the client device is obtained by the server, where the service information is associated with a plurality of services. The service information is returned by the server and to the client device, where the client device displays the service information in a specified interface using a visualization template, and where the service information includes at least one of access information or an interface of an application.

Abstract: In an implementation, providing service information is described. Current scenario information of a client device is obtained by a server and from a client device. Service information matching the current scenario information of the client device is obtained by the server, where the service information is associated with a plurality of services. The service information is returned by the server and to the client device, where the client device displays the service information in a specified interface using a visualization template, and where the service information includes at least one of access information or an interface of an application.

Abstract: The present invention discloses a visible near-infrared ultra-broadband absorber and its preparation method, comprising a substrate and a five-layer optical film, wherein the bottom film is a bottom metal absorbing layer; a top germanium layer is provided on the top of the bottom metal absorbing layer; and remaining three layers are provided on the top of the top germanium layer with gradually decreasing refractive indexes from the bottom to the top. The present invention is based on the blocking effect of the metal absorbing layer and broadband anti-reflection film stack of the germanium layer, which has realized visible near-infrared ultra-broadband absorption with high efficiency and good angle insensitivity, and has fully surpassed traditional absorbers in terms of performances.

Abstract: In an implementation, providing service information is described. Current scenario information of a client device is obtained by a server and from a client device. Service information matching the current scenario information of the client device is obtained by the server, where the service information is associated with a plurality of services. The service information is returned by the server and to the client device, where the client device displays the service information in a specified interface using a visualization template, and where the service information includes at least one of access information or an interface of an application.

Abstract: The present invention discloses a visible near-infrared ultra-broadband absorber and its preparation method, comprising a substrate and a five-layer optical film, wherein the bottom film is a bottom metal absorbing layer; a top germanium layer is provided on the top of the bottom metal absorbing layer; and remaining three layers are provided on the top of the top germanium layer with gradually decreasing refractive indexes from the bottom to the top. The present invention is based on the blocking effect of the metal absorbing layer and broadband anti-reflection film stack of the germanium layer, which has realized visible near-infrared ultra-broadband absorption with high efficiency and good angle insensitivity, and has fully surpassed traditional absorbers in terms of performances.

Abstract: The belt ply feeder and a feeding method include: when a belt ply is conveyed to the front end of a conveying forming board, a force is exerted by a perpendicular adjustment device to drive a conveying forming board bracket to swing upward and rotate around a pivot shaft of a rack to positions at which the upper surface of the conveying forming board is tangential to the periphery of a belt ply drum. According to this arrangement, the belt ply is tangential to the belt ply drum all the time and a belt ply is in firm contact with a belt ply drum regardless of the size of the belt ply drum when wrapping the belt ply around the belt ply drum. Accordingly, the quality of tire shaping can be improved.

Abstract: An incident angle insensitive color filter is disclosed, comprising a substrate, wherein several cylindrical gratings, made of silicon, are arranged in a regular hexagon shape on the substrate which is made up of fused quartz. A manufacturing method of the aforesaid filters is also disclosed. Different from the traditional chemical filters and traditional interference filters, incident angle insensitive color filters in the present invention are based on two-dimensional grating structure and make use of the huge refractive index contrast in the grating layer, by which the resonance is excited the resonance via the coupling between the regions with high/low refractive index, so as to achieve the incident angle insensitive filtering effects. The manufacturing method of incident angle insensitive color filters in the present invention is simple and of low cost, which is suitable for large scale mass manufacture.