Patent ID: 8553738
Filing Date: 2013-10-08
Classification: G02F,H01S

Abstract:
1. A laser light source device, comprising: at least one optical element; at least one heat sink on which the at least one optical element is joined via contact surfaces of a first joining surface formed on the at least one optical element; a groove portion extending in a direction substantially orthogonal to an optical axis of light in the laser light source device formed on the first joining surface of the at least one optical element for joining with a second joining surface of the at least one heat sink wherein a width of the groove in a direction substantially parallel to the optical axis of light in the laser light source device is greater than a width of a sum of the contact surfaces in the direction substantially parallel to the optical axis of light in the laser light source device, the contact surfaces of the first joining surface directly contacting the second joining surface; and a joining material for bonding the at least one optical element to the heat sink, the joining material provided in the groove portion.