Abstract: A light-emitting device including a casing with a light-transmitting port; a light source disposed inside the casing; and a casing cover disposed in the light-transmitting port. The casing cover having an outer peripheral cover portion with an opening; an inner peripheral cover portion located in the opening; a light-transmitting gap formed between the inner peripheral cover portion with the outer peripheral cover portion; and a connecting rib spanning the light-transmitting gap to connect the outer peripheral cover portion with the inner peripheral cover portion. The connecting rib includes a concave portion extending toward an inside of the casing and configured to allow light from the light source to pass through.

Abstract: The present disclosure relates to a light-emitting device, including: a casing provided with a light-transmitting port; a light source disposed inside the casing; and a casing cover covering the light source, wherein the casing cover is configured to be disposed in the light-transmitting port to cover the casing; wherein the casing cover includes: an outer peripheral side cover portion provided with an opening; an inner peripheral side cover portion located in the opening, wherein a light-transmitting gap is formed by spacing the inner peripheral side cover portion with the outer peripheral side cover portion; and a connecting rib configured to span the light-transmitting gap, and connect the outer peripheral side cover portion with the inner peripheral side cover portion; wherein the connecting rib is bent toward an inside of the casing to form a light-transmitting concave portion.