Structured light projector and electronic apparatus including the same

An electronic apparatus comprising:

• a structured light projector configured to project structured light to an object;
• a sensor configured to receive light reflected by the object;
• and
• a processor configured to obtain shape information of the object based on the light received by the sensor,
• wherein the structured light projector comprises:
• an illuminator configured to emit light;
• a pattern mask configured to generate the structured light from light emitted by the illuminator based on a pattern of the pattern mask;
• and
• a lens configured to project the structured light,
• wherein the illuminator comprises a plurality of illumination areas respectively facing a plurality of areas of the pattern mask,
• wherein the plurality of illumination areas comprises at least a first illumination area and a second illumination area,
• wherein a plurality of first light-emitting elements are disposed in the first illumination area and a plurality of second light-emitting elements are disposed in the second illumination area,
• wherein intensities of lights respectively emitted by the plurality of illumination areas are different from each other, a density of the plurality of first light-emitting elements disposed in the first illumination area being different from a density of the plurality of second light-emitting elements disposed in the second illumination area,
• wherein the first illumination area faces a peripheral portion of the pattern mask and the second illumination area faces a center portion of the pattern mask such that the first illumination area is disposed to surround the second illumination area, and
• wherein the intensities of the lights respectively emitted by the first illumination area and the second illumination area are set based on a distortion of the lens such that brightness of the structured light is uniform across a cross-section of the structured light.