Patent ID: 7899094

Claim:
A laser light source device comprising: a light source emitting light of a first wavelength; an optical element constituting a resonator structure between the optical element and the light source by selectively reflecting the light of the first wavelength and thereby leading the light toward the light source, and emitting a first laser light of a second wavelength which is different from the first wavelength; a wavelength conversion element provided in a first optical-path formed between the light source and the optical element, and converting the wavelength of part of incident light having the first wavelength into the second wavelength which is different from the first wavelength; an optical-path conversion section causing the light that has been converted into light of the second wavelength using the wavelength conversion element in the process of traveling to the light source due to reflection from the optical element to be selectively reflected thereby or be passed therethrough, thereby separating the light into a second optical-path different from the first optical-path, and emitting the separated light of the second wavelength as a second laser light; an optical-path adjustment section provided so as to be capable of adjusting the first laser light to be output from a predetermined position in the optical element; and a prism providing the optical-path conversion section.