Patent ID: 7872410
Filing Date: 2011-01-18
Classification: F21K,G02B,H01L

Abstract:
1. A light emitting device, comprising: a light emitting element; a substrate comprising a flat mounting surface for mounting the light emitting element thereon; a sealing part for the light emitting element on the mounting surface of the substrate, the sealing part comprising glass including a phosphor to be excited by light emitted from the light emitting element to radiate a wavelength conversion light, the sealing part being shaped like a rectangular solid wherein a lateral length is defined as a distance between a center of a bottom surface of the sealing part bonded to the mounting surface and a side face perpendicular to the mounting surface, a vertical length is defined as a distance between the mounting surface and a top surface of the sealing part, and at least one of the lateral length is longer than the vertical length; and a transparent member formed on the top surface of the sealing part with a vertical dimension, the transparent member including the phosphor at a concentration higher than the sealing part, wherein the device satisfies the relationship: where L represents the lateral length, t