CAMERA MODULE AND AUTOMOBILE
FIG7 is a conceptual view showing the camera module of the present embodiment being fusion welded 
The arrangement and spacing between the ribs 221 and the side walls 321 are important for laser welding. The length of the rib 221 in the vertical direction (a in FIG7) is preferably 0.8 mm, and the tolerance between the rib 221 and the side wall 321 (b in FIG7) is preferably 0.3 mm. This is because the ribs 221 melt and shrink as a whole. The thickness of the base 320 (c in FIG7) is preferably 1.2 mm, and the width of the side wall 321 (d in FIG7) is preferably 0.5 mm considering the laser permeability and durability. It is preferable that the tolerance (e in FIG7) between the inner side surface of the side wall 321 and the outer side surface of the rib 221 is 0.2 mm in order to stably accommodate the molten rib 221 and the base 320 during the fusion process. It is preferable that the width of the contact portion between the rib 221 and the base 320 (f in FIG7) is secured to 1 mm for the bonding strength and airtightness. It is preferable that the assembly tolerance (g in FIG7) between the first housing 200 and the second housing 300 is 0.1 mm.
conceptual view
220
body
221
opening ribs rib
321
side wall side walls
320
base
['1. A camera module comprising: a first housing in which a lens module is disposed; and a second housing including a base and a support portion extending upward from the base, wherein the substrate and the support portion are disposed in the first housing, and a lower surface of the first housing is coupled with an upper surface of the base.']