| 摘要 |
A blue-light emitting device, or a pseudo-white-light emitting device, including an LED light source that includes, as a light emission component, blue light having a wavelength of from 420 to 490 nm. A color-renderability improvement member including a complex fluoride fluorophore that absorbs blue light and emits red light and that is represented by A2(M1-xMn)F6 (M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3) is arranged in a location that is outside a region onto which light parallel to the light emission axis of the LED light source is emitted, said region being within a region onto which light is emitted from the LED light source. |
| 主权项 |
1. A light-emitting device for emitting blue light or pseudo-white light, comprising
an LED light source capable of emitting light containing blue light of wavelength 420 to 490 nm as a component, having an axis of light emission, and a color rendering-improving member disposed at a position that is inside a region over which the LED light source irradiates light, but outside a region over which light parallel to the light emission axis of the LED light source is irradiated, said color rendering-improving member comprising a phosphor capable of absorbing the blue light and emitting red light. |
