Modular surface light guide
View Patent ↗A light guide assembly includes a base and a light source that are removably secured to the base. The light source is oriented to emit light out and away from the base. A light distributor is spaced apart from the light source and distributes the light across the light guide assembly. The light distributor includes a primary reflection surface with a plurality of transmission elements extending out from the primary reflection surface therealong to allow a portion of the light to pass through the transmission elements of the primary reflection surface without being reflected by the primary reflection surface. This facilitates the creation of a uniform beam of light being emitted by the light guide assembly.
1. A light guide assembly ( 5 ) comprising:
a base ( 14 );
a light source ( 10 ) removably secured to said base ( 14 ) and oriented to emit light ( 101 - 108 ) out and away from said base ( 14 );
a light distributor ( 50 ) spaced apart from said light source for distributing the light ( 101 - 109 ) across said light guide assembly, said light distributor ( 50 ) including a primary reflection surface ( 55 ) with a plurality of transmission elements ( 58 ) extending out from said primary reflection surface ( 55 ) therealong to allow a portion of the light ( 101 , 104 , 108 ) to pass through said transmission elements ( 58 ) of said primary reflection surface ( 55 ) without being reflected by said primary reflection surface;
a collimator ( 113 ) disposed between said light source ( 10 ) and said light distributor ( 50 ) to collimate the light ( 101 - 108 ) before it impinges on said light distributor ( 50 );
a plurality of light deflecting surfaces ( 142 , 143 , 145 - 147 ) complementing said primary reflection surface ( 55 ) to deflect the light ( 102 , 103 , 105 - 107 ) reflected by said primary reflection surface ( 55 ) out of said light guide assembly ( 5 ), each of said plurality of light deflecting surfaces ( 142 , 143 , 145 - 147 ) defining a width, wherein said width of each of said plurality of light deflecting surfaces ( 142 , 143 , 145 - 147 ) is relative to said distance to said primary reflection surface ( 55 ); and
said light distributor ( 50 ) including a light entry surface ( 51 ) to receive the light ( 101 - 108 ) after it is collimated by said collimator ( 113 ).
2. A light guide assembly ( 5 ) as set forth in claim 1 wherein said light distributor ( 50 ) includes a light exit surface ( 52 ) from which a remainder of the light ( 101 - 108 ) is emitted.
3. A light guide assembly ( 5 ) as set forth in claim 2 including a surface light guide ( 70 ) for receiving the light emitted by said light distributor ( 50 ).
4. A light guide assembly ( 5 ) as set forth in claim 3 wherein said surface light guide ( 70 ) includes a plurality of notches ( 75 ) having notch surfaces ( 76 , 77 ).
5. A light guide assembly ( 5 ) as set forth in claim 4 including optical structures ( 81 ) for dispersing the light ( 101 - 108 ).
6. A light guide assembly ( 5 ) as set forth in claim 5 wherein said surface light guide includes a front side ( 73 ) allowing the light ( 101 - 108 ) to pass therethrough.