Patent ID: 8385377
Filing Date: 2013-02-26
Classification: H01S

Abstract:
1. A semiconductor laser device comprising: a semiconductor laser element configured to emit a fundamental wave; a transducer configured to receive incident thereon the fundamental wave and convert a wavelength of the fundamental wave to emit wavelength converted light; a filter configured to selectively transmit wavelength range light having a desired wavelength range of the wavelength converted light; a sealing member, including a light-transmitting member, configured to enclose the semiconductor laser element, the light-transmitting member being configured to receive the wavelength range light transmitted through the filter and incident on the light-transmitting member, specularly reflect part of the wavelength range light, and substantially transmit the remaining part of the wavelength range light; and a photoreceptor configured to receive the specularly reflected light from the light-transmitting member; wherein: