A camera module (105, 112, 113, 400, 800, 1000, 1100, 1300, 1400, 1600, 1700, 1800, 1900, 2000, 2100) comprising: a housing (410, 810, 1010, 1110, 1310, 1410, 1610, 1710, 1810, 1910, 2010, 2110) including a first surface, a through hole (415, 1120, 1915, 2115) and a lens assembly disposed in the through hole to face the first surface on which light is incident; an infrared filter (430, 830) attached to a second surface of the housing, positioned on a side opposite to the first surface; an image sensor (440, 840, 1040, 1140, 1740) configured to recognize the light passing through the infrared filter; and a printed circuit board (340, 450, 1450) coupled to the housing, wherein the infrared filter includes an effective filtering region (431, 831, 1031, 1131, 1231, 1331, 1431, 1531, 1631, 1831, 1931, 2131) configured to transmit visible light, and a masking region (433, 833, 1033, 1133a, 1133b, 1133c, 1233, 1333, 1433, 1533, 1633, 1733, 1833, 1933, 2033, 2133) surrounding the effective filtering region and having chamfered edges (835, 1035, 1537) in regions corresponding to vertices of the housing, the infrared filter having a shape corresponding to a shape of the chamfered edges of the masking region, and wherein the effective filtering region includes a central region forming a center and a corner region protruding outward from a vertex of the central region, characterised in that a circle is being formed in the corner region, and in that the printed circuit board includes a seating groove (455,1055) inside which the image sensor is disposed, the seating groove having a shape corresponding to the shape of the image sensor, wherein a diameter of the circle is twice a separation distance between the image sensor and the seating groove. a housing (410, 810, 1010, 1110, 1310, 1410, 1610, 1710, 1810, 1910, 2010, 2110) including a first surface, a through hole (415, 1120, 1915, 2115) and a lens assembly disposed in the through hole to face the first surface on which light is incident; an infrared filter (430, 830) attached to a second surface of the housing, positioned on a side opposite to the first surface; an image sensor (440, 840, 1040, 1140, 1740) configured to recognize the light passing through the infrared filter; and a printed circuit board (340, 450, 1450) coupled to the housing, wherein the infrared filter includes an effective filtering region (431, 831, 1031, 1131, 1231, 1331, 1431, 1531, 1631, 1831, 1931, 2131) configured to transmit visible light, and a masking region (433, 833, 1033, 1133a, 1133b, 1133c, 1233, 1333, 1433, 1533, 1633, 1733, 1833, 1933, 2033, 2133) surrounding the effective filtering region and having chamfered edges (835, 1035, 1537) in regions corresponding to vertices of the housing, the infrared filter having a shape corresponding to a shape of the chamfered edges of the masking region, and wherein the effective filtering region includes a central region forming a center and a corner region protruding outward from a vertex of the central region, characterised in that a circle is being formed in the corner region, and in that the printed circuit board includes a seating groove (455,1055) inside which the image sensor is disposed, the seating groove having a shape corresponding to the shape of the image sensor, wherein a diameter of the circle is twice a separation distance between the image sensor and the seating groove.