A mobile terminal comprising: a lighting unit; a camera (121, 121a, 121b); and a controller configured to control the lighting unit to irradiate illumination light on a subject to be captured through the camera (121, 121a, 121b), and control the camera (121, 121a, 121b) to capture the subject irradiated with the illumination light, wherein the controller is configured to determine a material of the subject based on information related to the illumination light irradiated on the subject captured through the camera, wherein the lighting unit comprises: a first light source configured to irradiate pattern light, wherein the first light source comprises a plurality of light-emitting elements (600, 600a, 600b, 600c, 600d), the light emitting elements outputting light beams with different wavelength, wherein the plurality of light-emitting elements (600, 600a, 600b, 600c, 600d) is grouped into a plurality of groups (610-a, 610-b,..., 610-n), and characterized in that the controller is configured to control the lighting unit such that respective light-emitting elements and groups emit light of different wavelength sequentially, and to control the camera (121, 121a, 121b) to sequentially acquire reactions of an object with respect to the light beams with different wavelengths, and wherein the material of the subject is identified from responses to the light beams with different wavelengths. a lighting unit; a camera (121, 121a, 121b); and a controller configured to control the lighting unit to irradiate illumination light on a subject to be captured through the camera (121, 121a, 121b), and control the camera (121, 121a, 121b) to capture the subject irradiated with the illumination light, wherein the controller is configured to determine a material of the subject based on information related to the illumination light irradiated on the subject captured through the camera, wherein the lighting unit comprises: a first light source configured to irradiate pattern light, wherein the first light source comprises a plurality of light-emitting elements (600, 600a, 600b, 600c, 600d), the light emitting elements outputting light beams with different wavelength, wherein the plurality of light-emitting elements (600, 600a, 600b, 600c, 600d) is grouped into a plurality of groups (610-a, 610-b,..., 610-n), and characterized in that the controller is configured to control the lighting unit such that respective light-emitting elements and groups emit light of different wavelength sequentially, and to control the camera (121, 121a, 121b) to sequentially acquire reactions of an object with respect to the light beams with different wavelengths, and wherein the material of the subject is identified from responses to the light beams with different wavelengths. a first light source configured to irradiate pattern light, wherein the first light source comprises a plurality of light-emitting elements (600, 600a, 600b, 600c, 600d), the light emitting elements outputting light beams with different wavelength, wherein the plurality of light-emitting elements (600, 600a, 600b, 600c, 600d) is grouped into a plurality of groups (610-a, 610-b,..., 610-n), and characterized in that the controller is configured to control the lighting unit such that respective light-emitting elements and groups emit light of different wavelength sequentially, and to control the camera (121, 121a, 121b) to sequentially acquire reactions of an object with respect to the light beams with different wavelengths, and wherein the material of the subject is identified from responses to the light beams with different wavelengths.