Camera module and vehicle comprising same

A camera module comprising:

• a lens barrel having a through hole therein;
• and
• a first lens, a second lens, and a third lens coupled to the through hole of the lens barrel and aligned with an optical axis from an object side toward a sensor side,
• wherein lenses of the optical system consist of three lenses,
• wherein the first lens is made of a glass material,
• wherein the second lens is made of a plastic material,
• wherein the first lens includes a first flange portion and an object-side first surface and a sensor-side second surface,
• wherein the second lens includes a second flange portion extending from the optical axis toward an inner surface of the lens barrel,
• wherein the third lens includes a third flange portion extending from the optical axis toward the inner surface of the lens barrel,
• wherein the second flange portion includes a first contact surface (S21) that is disposed in parallel to the optical axis and contacts the inner surface of the lens barrel, and a first non-contact surface (S22) that is disposed in parallel to the optical axis and does not contact the inner surface of the lens barrel,
• wherein the third flange portion includes a second contact surface (S31) that is disposed in parallel to the optical axis and contacts the inner surface of the lens barrel, and a second non-contact surface (S32) that is disposed in parallel to the optical axis and does not contact the inner surface of the lens barrel,
• wherein a vertical length (D5) of the first non-contact surface in a direction of the optical axis is longer than a vertical length (T5) of the second non-contact surface,
• wherein a total thickness (D1) of the second flange portion is thicker than a total thickness (T1) of the third flange portion,
• wherein an object-side third surface and a sensor-side fourth surface of the second lens have different radii of curvature on the optical axis, and
• wherein a center of the first contact surface where the second flange portion of the second lens contacts the inner surface of the lens barrel is located closer to a side having a greater radius of curvature among the third surface and the fourth surface based on a center of the total thickness of the second flange portion of the second lens, and the radii of curvature of the third and fourth surfaces are expressed as absolute values.