Patent Publication Number: US-2003223238-A1

Title: Foaming molded lampshade

Description:
FIELD OF THE INVENTION  
       [0001] The present invention relates to a foaming molded lampshade and particularly to a foaming molded lampshade made by hot melting foaming molding to form media of different refractive indexes.  
       BACKGROUND OF THE INVENTION  
       [0002] In the past, it is a common practice to decorate sites of outdoor parties or street events where festivals and celebrations are conducted with ornamental lights. In order to generate brilliant visual effect, the ornamental lights generally include a plurality of sockets connecting by power cords in series, and the sockets are coupled with lamps of different colors. When the ornamental lights are plugged to electric power, the lamps instantly emit colorful lights to pass through the transparent lamp shells to decorate the sites of wedding parties, celebration events, conventions or dancing parties, etc.  
       [0003] Although the ornamental lights mentioned above can foster joyful atmosphere and create amusing and entertaining effect for the parties and events, there are still many ornamental lights do not have transparent objects to refract light projections. Lights directly emit in a scattering manner from the lamps, and often become too strong and irritating, and cannot generate the desired atmosphere.  
       [0004] Furthermore, the lamps mounted on the ornamental lights usually are made from brittle glass and are naked and exposed. Transportation and carrying must be very careful, otherwise the lamps are prone to hit one another and easily shattered. Moreover, on the sites where the ornamental lights are installed, strong winds could cause strings of ornamental lights swinging and the sockets wobbling. It also tends to shatter the lamps. The shattered lamps not only cost money but also create the risk of injuring people.  
       SUMMARY OF THE INVENTION  
       [0005] Therefore the primary object of the invention is to provide a foaming molded lampshade made by hot melting foaming molding to form media of different refractive indexes that can focus and reflect lights to generate special visual effects similar to arrays of universe constellations and produce colorful and fascinating results.  
       [0006] In order to achieve the foregoing object, the foaming molded lampshade of the invention is mainly coupling with a lamp of various styles. Inside the lampshade, there is a plurality of refraction units of different refractive indexes made by hot melting foaming molding. The lampshade further has a connection unit integrally formed with the lampshade by molding for coupling the lamp. The foaming molded lampshade thus made has a simple structure and can generate brilliant refractive effects.  
       [0007] Another object of the invention is to provide a hot-melt resistant connection unit made by molding to enable light sources to project the lampshade to generate a clear lamp image and create desired visual effects.  
       [0008] Yet another object of the invention is to provide a foaming molded lampshade that is easy to assemble or disassemble to save installation time.  
       [0009] The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0010]FIG. 1 is a perspective view of the invention.  
     [0011]FIG. 2 is a cross section taken along line  2 - 2  in FIG. 1.  
     [0012]FIG. 3 is a schematic view of the invention in a use condition.  
     [0013]FIG. 4 is schematic view of the invention in another use condition. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
     [0014] Referring to FIGS. 1, 2 and  3 , the foaming molded lampshade  10  of the invention mainly aims to couple with a lamp  40  of various styles, such as lamp bulbs, fluorescent lamps, ornamental lamps, etc. The lamp  40  includes light emitting diodes connecting by power cords  50  in series (as shown in FIG. 3) and in a cross fashion. The structure is easy to assemble or disassemble.  
     [0015] The lampshade  10  is made from a hot-melt resistant or a high temperature resistant material with flexible property, such as polyvinyl chloride (PVC) or polystyrene (PS). In the lampshade  10 , there is a plurality of refraction units  20  with different refractive indexes formed by hot melting foaming molding. On an upper end of the lampshade  10 , there is a connection unit  30  integrally formed with the lampshade  10  by molding for coupling with the lamp  40 . The foaming molded lampshade  10  thus made can save installation time of the lamp  40 , and also is easy to assemble or disassemble.  
     [0016] Referring to FIG. 2, in order to provide brilliant lights and crystalline visual effect, the refraction units  20  are formed with curvatures of different incident angles and refractive angles, and are positioned in various styles. Hence with the refraction units  20  integrally formed inside the lampshade  10 , light sources may be focused and absorbed. In order to produce clear image of the lamp  40 , the connection unit  30  must be made from a hot-melt resistant or a high temperature resistant material so that after the lamp  40  is mounted to the connection unit  30 , the connection unit  30  remains intact without causing blurred images after heating by projection of the strong lights. With the lamp  40  mounting in the connection unit  30 , emitting light scatter around in the lampshade  10 , and through different hot melt medium elements of the refraction units  20 , brilliant lights and fascinating visual effects may be generated.  
     [0017] Referring to FIGS. 3 and 4, when in use, the invention is connected in series like a conventional light. It is known in the art, details are omitted. The following depicts the unique features of the invention. First, couple the connection unit  30  of the arched lampshade  10  with the lamp  40 ; the lamp  40  projects versatile and colorful lights to the lampshade  10 ; the refraction units  20  located around the lampshade  10  are light source media that have the property of absorbing light in a stable manner, and the connection unit  30  is hot-melt resistant or high temperature resistant, the light source media in the refraction units  20  are hot-melted in advance so that lights of different incident angles may be projected to the refraction units  20  and focus; then the processed light sources discussed above project to the lampshade  10  which is formed either in transparent, semi-transparent or smoke finished manner, and through different reflection angles, the resulting lights scatter out through the lampshade  10 . A clear image of the lamp  40  can be obtained, and a brilliant visual effect also is generated. In addition, the lamp  40  mounted to the lampshade  10  may be made in various forms such as a symmetrical polygon, a polygon, an irregular shape, etc. Through multiple refraction optical paths, a fascinating visual effect similar to arrays of universe constellation may be generated.  
     [0018] In summary, the invention provides a simple structure that makes assembly and disassembly easier, and saves installation time. It effectively overcomes the disadvantages incurred to conventional ornamental lights.  
     [0019] While the preferred embodiment of the invention has been set forth for the purpose of disclosure, modifications of the disclosed embodiment of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.