| 摘要 |
PURPOSE: A device for protecting a laser diode of a laser generation unit is provided to dissipate heat of a laser diode by inflowing air to a rear face of a PCB having a laser diode installed from the outside. CONSTITUTION: A cylindrical outer main body(11) opens a front side and partially opens a rear side. A cylindrical inner main body(12) is connected to the inside of the outer main body with a bolt, opens a front side and closes a rear side. A ring-shaped PCB(13) arranges a plurality of laser diodes and an LED located in a space among the outer main body, the inner main body, and the front side. A ring-shaped engagement member is engaged with the inner circumference of an aperture of the inner main body and fixes the PCB. A circular mesh body(16) is engaged with the inner circumference of an aperture of the inner main body and covers a heat sink(15) installed at the inner side of the rear side of the inner main body. A ring-shaped engagement member(18) engages a ring-shaped glass plate having a hole(17) formed in the center to the inner circumference, engages with an edge of the aperture of the outer main body, and covers the aperture of the outer main body. |
