LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DEVICE AND OPTICAL COMPONENT USED IN THE SAME

摘要

A light emitting device wherein discoloration of a reflective layer in an optical component can be prevented and a stable optical output power can be maintained, and a method of manufacturing an optical component used in the light emitting device. The optical component includes a supporting member defining a through-hole, a reflective layer formed on an inner wall defining the through-hole, a protective layer formed on the reflective layer, and a light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, and disposed in the through hole. The light transmissive member is fixed in the through-hole with a joining portion where the outer circumference side-surface and the protective layer are joined, and an end portion at the light emitting side of the joining portion is covered with a second protective layer disposed continuously on the protective layer and the light transmissive member.

主权项

1. An optical component comprising:
a supporting member having an inner wall defining a through-hole; a reflective layer formed on the inner wall defining the through-hole; a first protective layer formed on the reflective layer; a light transmissive member disposed in the through-hole, the light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, wherein a first portion of the outer circumference side-surface of the light transmissive member is in direct contact with the first protective layer, and a second portion of the outer circumference side-surface of the light transmissive member is separated from the first protective layer; and a second protective layer that extends continuously over and directly contacts both the second portion of the outer circumference side-surface of the light transmissive member and a portion of the first protective layer, so as to cover an interface at which said first portion of the outer circumference side-surface of the light transmissive member is in direct contact with the first protective layer, on a light emitting surface side of the light transmissive member.