Patent ID: 8050300

Claim:
A laser beam source device comprising: a light source which emits light having firs wavelength; a wavelength conversion element which receives the light having first wavelength and emitted from the light source and converts at least a part of the received light into first light having second wavelength different from the first wavelength; a resonance element which transmits the first light and reflects light not converted into the first light toward the wavelength conversion element; an optical path conversion element which releases second light contained in the light reflected by the resonance element and converted into light having the second wavelength by passing through the wavelength conversion element substantially in the same direction as the direction of the first light transmitted through the resonance element; and a supporting member which supports the wavelength conversion element, the resonance element, and the optical path conversion element on one end surface of the supporting member, wherein the resonance element is disposed in such a position that one end surface of the resonance element on the second light side is shifted to the supporting member from one end surface of the wavelength conversion element on the second light side.