Patent ID: 8761226
Filing Date: 2014-06-24
Classification: B23K,C30B,H01S

Abstract:
1. A laser oscillation device, comprising: an oscillation unit oscillating a laser; a shutter unit covering the laser; and a connection unit covering the laser, connecting the oscillation unit and the shutter unit, and comprising a first connection part supported by the oscillation unit and a second connection part supported by the shutter unit, the first and second connection parts being separated from each other with a space between the first and second parts, and one of the first and second connection parts covering at least a portion of the other one of the first and second connection parts, wherein the first and second connection parts do not come in contact with each other with no intervening structure or material between the first and second connection parts, wherein the first connection part comprises a first extension portion extending in a first cylindrical shape from the oscillation unit toward the shutter unit, and the second connection part comprises a second extension portion extending from the shutter unit to an interior of the first extension portion, and having a second cylindrical shape with a smaller diameter than that of the first extension portion in the first cylindrical shape, and wherein the first connection part further comprises a first bent portion bent to extend from an end portion of the first extension portion toward the second extension portion, and the second connection part further comprises a second bent portion bent to extend from an end portion of the second extension portion toward the first extension portion, wherein the first and second bent portions face each other.