| 摘要 |
A light source device including at least one light source, an optical module, a diffractive optical element, and a shielding component is provided. The at least one light source emits at least one light beam, and the light beam has a wavelength range. The optical module is disposed on a transmission path of the light beam to provide a plurality of optical surfaces. The optical surfaces respectively have a plurality of different inclination angles, so as to transmit at least a portion of the light beam having at least a predefined wavelength to a plurality of different directions. The diffractive optical element is disposed on the transmission path of the light beam, so as to diffract the light beam. The shielding component has an outlet. A portion of the diffracted light beam passes through the outlet to the outside. |
