Abstract:
The invention involves an improved auxiliary sun visor for vehicles, for example, automobiles. It comprises a transparent and colored light-shielding plate inserted into sun visor to dim and reduce sunlight. The inside shielding plate can be flexibly pulled out for use and pushed back in when not being used. The built-in shielding plate looks more aesthetically appealing compared to the original attached style.

Description:
BACKGROUND 
       [0001]    1. Field of the Invention 
         [0002]    The invention relates to an improved auxiliary sun visor inserted into a conventional sun visor. 
         [0003]    2. Description of the Prior Art 
         [0004]    Current auxiliary sun visors directly attach a transparent and colored light-shielding plate to the ordinary sun visor using clips or strips. The light-shielding plate is also capable of changing its angle on the hinges. Whenever the driver feels blinded by the harsh sunlight, he or she can pull down the regular sun visor and extends the auxiliary sun visor even lower to protect against light glare. If the sunlight is not harsh, then the auxiliary sun visor is folded onto the back of the regular sun visor, out of the way. 
         [0005]    However, the externally attached auxiliary sun visor is not aesthetically pleasing. It folds away from the sun visor and looks bulky in size. 
       SUMMARY OF THE INVENTION 
       [0006]    An auxiliary sun visor which dims the sun&#39;s rays with a transparent and colored light-shielding plate is extremely helpful when the driver is blinded by the glare of direct sun light. An internal built-in transparent and colored light-shielding plate within the default sun visor can slide in or out of the sun visor depending on the degree of sunlight. The transparent and colored light-shielding plate can be inserted into a slot on the bottom side of the conventional sun visor. When the driver does not need to limit exposure to the sunlight, he or she can easily retract the plate back into the regular sun visor. As soon as the driver becomes impacted by sunlight, he or she can pull out the light-shielding plate to lessen the effects of the sunlight. The position of the transparent and colored light-shield plate from the sun visor is adjustable depending on the driver&#39;s preferences. The transparent and colored light-shield plate can include a polymer-structured material or glass. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0007]      FIG. 1  is a perspective view of the sun visor with a slot. 
           [0008]      FIG. 2  is a perspective view of the transparent and colored light-shielding plate. 
           [0009]      FIG. 3  is a perspective view of half sun visor. 
           [0010]      FIG. 3   a  is a perspective view of two layers of polymer ribbons. 
           [0011]      FIG. 4  is a perspective view of the transparent and colored light-shielding plate in the inside of sun visor. 
           [0012]      FIG. 5   a  is a perspective view of the fully retracted transparent and colored light-shielding plate back in sun visor. 
           [0013]      FIG. 5   b  is a perspective view of the partially extended transparent and colored light-shielding plate out. 
           [0014]      FIG. 5   c  is a perspective view of the fully extended transparent and colored light-shielding plate out. 
       
    
    
     DETAILED DESCRIPTION 
       [0015]    An auxiliary sun visor for a vehicle can include a base plate in an interior region of a sun visor of a vehicle. The base plate can be configured to slide in to and out of the sun visor. The interior region of the sun visor can include a polymer ribbon configured to hold the base plate in a selected position. The position of the base plate in the sun visor can be movable and adjustable, for example, it can be fully pulled out and fully retracted back, or positions somewhere in between at a position selected by the user. For example, the user extends the base plate from the interior region of the visor to a position that blocks or reduces sun light while maintaining visibility of surroundings. 
         [0016]    The base plate can be a transparent and colored light-shielding plate. The color of the transparent and colored light-shielding plate can be selected to reduce the intensity of sun light. For example, the color can be amber, yellow, gold, gray, brown, blue, orange, green, purple, rose, or red. In certain embodiments, the transparent and colored light-shielding plate can be polarized. 
         [0017]    The base plate can include a polymer or glass region. For example, the polymer or glass region includes poly(methyl methacrylate) (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polymethylpentene (PMP), polyvinylidene fluoride (PVDF), polysulfone (PSF), polystyrene (PS), polyether sulfone (PES), styrene/acrylonitrile copolymer (SAN), or blends thereof. 
         [0018]    An embodiment of this invention is described with reference to the drawings.  FIG. 1  shows an innovative sun visor  100  with a slot  110  in the bottom side. The sun visor can be made of plastic. The transparent and colored light-shielding plate  200  with a handle  210  can have projecting pieces  220  on the top as shown in  FIG. 2 . 
         [0019]    The transparent and colored light-shielding plate  200  can be made of polymer or glass. The polymer material can include poly(methyl methacrylate) (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polymethylpentene (PMP), Polyvinylidene fluoride (PVDF), polysulfone (PSF), polystyrene (PS), or polyether sulfone (PES), or other mixed polymers such as LURAN (SAN), and ULTRASON (PES and PSU), or other transparent polymers. The color of transparent light-shielding plate selected can be amber tint, yellow tint, gold tint, gray tint, brown tint, blue tint, green tint, purple tint, rose tint, or other colors which can dim sunlight. The transparent and colored light-shielding plate can either be polarized or non-polarized.  FIG. 3  shows a half sun visor  300 , which can include projecting pieces  120  and two layers of ribbons  130  in each side of sun visor. 
         [0020]      FIG. 3   a  shows that ribbon  130  can include polymers  134  and  136  two layers on the sun visor base  132 . The polymer ribbon  134  can provide certain elasticity to hold the transparent and colored light-shielding plate  200  at any position without sliding. The soft polymer ribbon  136  can provide certain friction to hold the transparent and colored light-shielding plate  200  at any position without sliding, as well as prevent scratches on shielding plate  200 . Polymer ribbon  136  can be adhered to polymer ribbon  134 , which then can be adhered to sun visor base  132 . The polymer ribbon  134  can include polymer foam or rubber, and polymer ribbon  136  can include polymer rubber or chemical fiber such as polyester. Two layers of polymer ribbons  130  can have multiple combinations of fiber, elastic and foam materials depend on efficiency. The combination may be polymer foam with fiber, polymer foam with rubber, or rubber with fiber. 
         [0021]      FIG. 4  shows that the projecting pieces  120  of sun visor  300  blocks the projecting pieces  220  of transparent and colored light-shielding plate  200  to prevent from falling down. The twohalf mirror symmetrical sun visors  300  can be assembled into a whole sun visor  100  with screws or adhesives. The perspective view of the built-in transparent and colored light-shielding plate  200  is assembled within sun visor  100  as shown in  FIG. 5   a,  in which the plate  200  can be fully retracted back in sun visor  100 .  FIG. 5   b  shows the transparent and colored light-shielding plate  200  partially extended out of sun visor  100 .  FIG. 5   c  shows the transparent and colored light-shielding plate  200  fully pulled out of sun visor  100 . 
         [0022]    It is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the following claims.