A lighting configured for defect inspection of sheet-shaped objects , the lighting configured to being used for defect inspection of sheet-shaped objects , the lighting comprising: an elongated light application unit configured to apply illumination light to a sheet-shaped object , the light application unit configured to extend in a second direction (Y) that is orthogonal to a first direction (X) on a surface of the sheet-shaped object , the first direction (X) being a direction in which the sheet-shaped object moves relative to the lighting; a first light shielding unit configured to being located on a light path from the light application unit to the sheet-shaped object , the first light shielding unit having light shielding sections and opening sections alternately arranged in a direction parallel to the second direction (Y); and a second light shielding unit configured to being located, between the first light shielding unit and the sheet-shaped object , on the light path from the light application unit to the sheet-shaped object , the second light shielding unit having light shielding sections and opening sections alternately arranged in a direction parallel to the second direction (Y), wherein the opening sections of the first light shielding unit are located between the light shielding sections of the second light shielding unit and the light application unit in a third direction (Z) orthogonal to the first and second directions (X, Y), the opening sections of the first light shielding unit have a smaller length in the second direction (Y) than the light shielding sections of the second light shielding unit have, and the light shielding sections of the first light shielding unit and/or the light shielding sections of the second light shielding unit include, on sides facing the light application unit , light reflection members that protrude toward the light application unit . an elongated light application unit configured to apply illumination light to a sheet-shaped object , the light application unit configured to extend in a second direction (Y) that is orthogonal to a first direction (X) on a surface of the sheet-shaped object , the first direction (X) being a direction in which the sheet-shaped object moves relative to the lighting; a first light shielding unit configured to being located on a light path from the light application unit to the sheet-shaped object , the first light shielding unit having light shielding sections and opening sections alternately arranged in a direction parallel to the second direction (Y); and a second light shielding unit configured to being located, between the first light shielding unit and the sheet-shaped object , on the light path from the light application unit to the sheet-shaped object , the second light shielding unit having light shielding sections and opening sections alternately arranged in a direction parallel to the second direction (Y), wherein the opening sections of the first light shielding unit are located between the light shielding sections of the second light shielding unit and the light application unit in a third direction (Z) orthogonal to the first and second directions (X, Y), the opening sections of the first light shielding unit have a smaller length in the second direction (Y) than the light shielding sections of the second light shielding unit have, and the light shielding sections of the first light shielding unit and/or the light shielding sections of the second light shielding unit include, on sides facing the light application unit , light reflection members that protrude toward the light application unit . <EOS>