| CPC G01B 3/1041 (2013.01) [F21V 23/007 (2013.01); F21V 33/0084 (2013.01); G01B 2003/1087 (2013.01)] | 8 Claims | 

| 
               1. A tape measure having a light emitting device, which comprises a housing, a reel received in the housing, and a blade wound on the reel to be extended or retracted through an inlet of the housing, the tape measure comprising: 
            a first case; 
                a second case coupled with the first case to form the housing; 
                a light emitting portion positioned in front of the center of the reel around the inlet of the housing; and 
                a light emitting circuit portion positioned in the rear side of the center of the reel by facing the light emitting portion, 
                wherein the light emitting circuit portion includes a circuit board disposed on a rear lower side of the housing, and the first case and the second case provide circuit receiving spaces for receiving the circuit board, respectively, 
                wherein a first elastic introduction hole connecting the circuit receiving space and the outside is formed in at least one of the first case and the second case, and 
                wherein a part of at least one of a first elastic layer formed integrally on the outer surface of the first case and a second elastic layer formed integrally on the outer surface of the second case is extended and formed to pass through the first elastic introduction hole to provide a first impact absorbing portion supporting an upper surface, a lower surface, or a rear surface of the circuit board. 
               |