Excimer lamp light source

The utility model discloses an excimer lamp light source which comprises an excimer lamp tube, a regular reflector and an auxiliary reflector, the regular reflector is in an arc surface shape, the regular reflector is arranged below the excimer lamp tube, the excimer lamp tube is arranged in a covering range of the regular reflector, and the auxiliary reflector is arranged above the excimer lamp tube and shields the front face of the excimer lamp tube. The excimer lamp tube emits ultraviolet light under auxiliary excitation of the auxiliary reflector and the electrode grating net, part of the ultraviolet light is reflected to the regular reflector through the auxiliary reflector, and all the ultraviolet light is emitted out in parallel after being reflected by the regular reflector. According to the utility model, the double reflection design is adopted, the 222 nanometer ultraviolet light emitted by the molecular lamp tube is reflected by utilizing the two reflecting mirrors with opposite directions, namely