Lighting device and ranging device

Abstract

For example, provided is a lighting device that irradiates an irradiation target with light with as few gaps as possible. The lighting device includes a light-emitting element including a plurality of light-emitting units arranged in an array, a first optical member arranged near the light-emitting element, the first optical member being arranged in an emission direction of light beams emitted from the light-emitting units to reduce a gap between the light beams emitted from the light-emitting units adjacent to each other and make the light beams uniform in light intensity, and a second optical member that roughly collimates divergent light from the first optical member.

Dependencies are inferred from the claim text.