LIGHT SOURCE, PROJECTION DEVICE, MEASUREMENT DEVICE, ROBOT, ELECTRONIC APPARATUS, MOVING BODY, AND MOLDING DEVICE

摘要

To reduce speckle noise without increasing the size nor cost of a projection part.SOLUTION: A light source according to one embodiment of the present invention has a plurality of light emitting elements in a plane. A plurality of light emitting elements are arranged at such element intervals that irradiation lights of the plurality of light emitting elements overlap in an assumed projection region, and also at such element intervals that speckle patterns of the respective irradiation lights obtained in the assumed projection region differ with the irradiation lights.SELECTED DRAWING: Figure 5