An embodiment comprises a substrate, a lens barrel arranged on the substrate, and a lens unit arranged in the lens barrel, wherein: the lens unit includes a liquid lens unit; the liquid lens unit includes a holder, a liquid lens which is arranged in the holder and which includes an electrode, and a terminal unit arranged in the holder and electrically connected to the liquid lens; the terminal unit includes a first part coupled to the electrode of the liquid lens, a second part arranged in the holder, and a third part for connecting the first part and the second part; and the width of the third part is smaller than the width of the first part.