White light emitting lamp and white led lighting apparatus including the same

Abstract

An object is to provide a white light emitting lamp in which a BGR phosphor containing blue, green and red phosphor is combined with a semiconductor light emitting element such as an LED, a deep red phosphor having a main emission peak in a longer wavelength region than a main emission peak of the red phosphor is further added so as to enhance characteristics, whereby both high luminance and high color rendering properties can be obtained. This invention provides a white light emitting lampcomprising: a semiconductor light emitting elementthat is placed on a boardand emits ultraviolet light or blue light; and a light emitting portion that is formed so as to cover a light emitting surface of the semiconductor light emitting element, the light emitting portion containing a blue phosphor B, a green phosphor G, and a red phosphor R that are excited by the light emitted from the semiconductor light emitting elementto respectively emit blue light, green light, and red light, the white light emitting lampemitting white light by mixing light emission colors from the blue phosphor B, the green phosphor G, and the red phosphor R with one another, wherein the light emitting portion further contains a deep red phosphor DR having a main emission peak in a longer wavelength region than a main emission peak of the red phosphor.