US Patent Application 18323316. LIGHT-EMITTING DEVICE simplified abstract

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LIGHT-EMITTING DEVICE

Organization Name

NICHIA CORPORATION

Inventor(s)

Soichiro Miura of Tokushima-shi (JP)

LIGHT-EMITTING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18323316 titled 'LIGHT-EMITTING DEVICE

Simplified Explanation

The patent application describes a light-emitting device that includes a base member, a light-emitting element, and a wavelength conversion member.

  • The light-emitting element emits light in a lateral direction.
  • The wavelength conversion member is positioned at the side of the light-emitting element.
  • The wavelength conversion member has a portion for converting the wavelength of light and a surrounding portion.
  • Light enters the wavelength conversion portion, undergoes wavelength conversion, and exits through an exit surface.
  • The surrounding portion includes a protrusion that overlaps with the emission end surface of the light-emitting element.
  • The device aims to provide efficient wavelength conversion and improved light emission.


Original Abstract Submitted

A light-emitting device includes a base member, light-emitting element, and a wavelength conversion member. Light-emitting element is configured to emit light traveling in a lateral direction. The wavelength conversion member is disposed at a lateral side of the light-emitting element. The wavelength conversion member includes a wavelength conversion portion and a surrounding portion. The wavelength conversion portion having an incident lateral surface and an exit surface so that light is incident on the incident lateral surface, undergoes wavelength conversion in the wavelength conversion portion, and exits through the exit surface. The surrounding portion includes a protrusion located above the light-emitting element, and protruding outwardly toward a light-emitting element side with respect to the incident lateral surface with the protrusion overlapping with the emission end surface of the light-emitting element in a top view.