A light emitting module is disclosed. The light emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens, a second optical path conversion member for providing the first reflected light as second reflected light to pass through the condensing lens, and a case for receiving at least the condensing lens, the light source, the first optical path conversion member, and the second optical path conversion member.