Camera lens for vehicle and camera module comprising same

A camera module comprising:

• a plurality of lenses stacked from an object side toward an image side;
• and
• spacers respectively disposed on an outer circumference between adjacent lenses,
• wherein at least a first lens of the plurality of lenses includes:
• a first region having an effective diameter having an object-side first surface and an image-side second surface;
• and
• a flange portion disposed around the first region and having a third surface extending outwardly from a first edge of the first surface and a fourth surface extending outwardly from a second edge of the second surface,
• wherein the spacers are configured to block light from reaching the flange portion, the flange portion being an optically non-effective region,
• wherein the flange portion includes:
• a plurality of first grooves concave from the third surface of the flange portion toward the fourth surface;
• and
• a plurality of second grooves concave from the fourth surface toward the third surface,
• wherein the spacers include a first spacer facing the third surface of the flange portion and covering the plurality of first grooves and a second spacer facing the fourth surface of the flange portion and covering the plurality of second grooves,
• wherein the first edge is a boundary point between the flange portion and the first surface,
• wherein the second edge is a boundary point between the flange portion and the second surface,
• wherein a minimum distance between the first edge and an inner first groove of the plurality of first grooves closest to the first edge is greater than a distance between adjacent first grooves of the plurality of first grooves, and
• wherein the minimum distance between the inner first groove closest to the first edge and the first edge is greater than a distance between an outer surface of the flange portion and an outer first groove of the plurality of first grooves closest to the outer surface of the flange portion.

A camera module comprising:

• a plurality of lenses arranged along an optical axis;
• and
• a spacer disposed on an outer circumference between adjacent lenses,
• wherein a first lens of the plurality of lenses comprises:
• a first region having an effective diameter having an object-side first surface and an image-side second surface;
• and
• a flange portion disposed around the first region and having a third surface extending outwardly from a first edge of the first surface and a fourth surface extending outwardly from a second edge of the second surface,
• wherein the spacer is configured to block light from reaching the flange portion, the flange portion being an optically non-effective region,
• wherein the flange portion comprises:
• a plurality of first grooves concave from the third surface of the flange portion toward the fourth surface;
• and
• a plurality of second grooves concave from the fourth surface toward the third surface,
• wherein the first edge is a boundary point between the flange portion and the first surface,
• wherein the second edge is a boundary point between the flange portion and the second surface,
• wherein the plurality of first grooves and the plurality of second grooves are arranged in a direction perpendicular to the optical axis of the plurality of lenses,
• wherein a depth of the first groove adjacent to the first edge and a depth of the first groove adjacent to an outer surface of the flange portion are different from each other,
• wherein a minimum distance between the first edge and an inner first groove of the plurality of first grooves closest to the first edge is greater than a distance between adjacent first grooves of the plurality of first grooves, and
• wherein the minimum distance between the inner first groove closest to the first edge and the first edge is greater than a distance between an outer surface of the flange portion and an outer first groove of the plurality of first grooves closest to the outer surface of the flange portion.