Patent ID: 7830929

Claim:
A laser beam source device comprising: a light source which emits light having fundamental wavelength; a wavelength conversion element which receives the light having fundamental wavelength and emitted from the light source and converts at least a part of the received light into light having predetermined conversion wavelength; a resonance element which transmits first light converted into the predetermined conversion wavelength light and reflects light not converted into the predetermined conversion wavelength 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 the predetermined conversion wavelength light 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 releases the light not converted into the predetermined conversion wavelength light toward the light source; 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.