Patent ID: RE41876

Claim:
A light source mechanism for an imaging An apparatus, comprising: at least a point light source , for providing illumination to the imaging apparatus configured to provide light during a scanning process; and a light shield including comprising a hollow pipe structure with an axis and having a mounting element at one end for installing the point light source ; , wherein the light shield further includes comprises a long slot lying along an axial longitudinal direction, thereof for allowing lights to leave wherein the slot is configured to receive the light therethrough, such that the light exits the light shield via the slot , wherein an inner surface of the light shield being comprises a diffusion diffuse surface for diffusing lights inside the light shield, and wherein a line light source is formed at the long slot of the light shield the light from the point light source , wherein said the diffusion surface of said the light shield includes a plurality of comprises ring protrusions located adjacent the point light source and ring protrusions located distant from the point light source, wherein the ring protrusions located adjacent the point light source are configured to provide a reduced diffusion of the light as compared to the ring protrusions located distant from the point light source, and wherein a line light source is formed at the slot of the light shield .