Patent ID: 7140893

Claim:
A light source device, comprising: a light source unit housing; a light source unit slidably mounted in the light source unit housing and including an electric lamp for supplying illumination light to an endoscope system, the electric lamp being electrically connected to a power source when the light source unit is inserted into the light source unit housing and disconnected from the power source when the light source unit is removed from the light source unit housing; a pair of first power electrodes held for sliding movement in opposite directions for insertion and removal of the light source unit by the light source unit housing through which electric power is transmitted; a pair of second power electrodes fixedly attached to the light source unit through which electric power is supplied to the electric lamp; and biasing means incorporated in the light source unit housing for biasing the first power electrodes in the direction for removal; a static electric discharge circuit incorporated in the light source unit housing that operates to discharge built-up electric charges; sliding discharge electrodes forming part of the discharge circuit and held for slide movement in opposite directions for insertion and removal of the light source unit by the light source unit housing; and wherein, when the light source unit is inserted into the light source unit housing, the second power electrodes come to contact with and thrust back the first power electrodes against the biasing means, thereby electrically connecting the electric lamp to the power source.