Abstract:
A light-emitting device includes a base member having an upper surface and a recess on an upper surface side; a light-emitting element disposed in the recess and configured to emit ultraviolet light; a light-transmissive member disposed on the upper surface; a first inorganic adhesive member disposed on the light-transmissive member; and a lens bonded to the light-transmissive member with the first inorganic adhesive member. An absolute value of a difference in linear expansion coefficient between the base member and the light-transmissive member is smaller than an absolute value of a difference in linear expansion coefficient between the base member and the lens.
Abstract:
A light emitting device includes a package having an upper surface and an upward-opening recess defined in a portion of the upper surface, at least one light-emitting element in the recess, a light-transmissive member covering the opening of the recess, and an antireflection film on a lower surface of the light-transmissive member, the antireflection film located between the lower surface of the light-transmissive member and an upper surface of the package at a location where a portion of the lower surface of the light-transmissive member is bonded to the upper surface of the package via the antireflection film. A coating film is disposed on at least a portion of an outer surfaces of the light emitting device, the portion including a region where the antireflection film located between the lower surface of the light-transmissive member and the upper surface of the package is exposed.
Abstract:
A light emitting device includes a package having a recess, a light emitting element disposed in the recess, a light-transmissive member covering an opening of the recess, and a frame member bonded to the package. The light-transmissive member is held by and between the package and the frame member.
Abstract:
A light emitting device includes a package having an upper surface and an upward-opening recess defined in a portion of the upper surface, at least one light-emitting element in the recess, a light-transmissive member covering the opening of the recess, and an antireflection film on a lower surface of the light-transmissive member, the antireflection film located between the lower surface of the light-transmissive member and an upper surface of the package at a location where a portion of the lower surface of the light-transmissive member is bonded to the upper surface of the package via the antireflection film. A coating film is disposed on at least a portion of an outer surfaces of the light emitting device, the portion including a region where the antireflection film located between the lower surface of the light-transmissive member and the upper surface of the package is exposed.