| 摘要 |
PURPOSE:To restrain a wavelength component which is longer than a wavelength of 490nm by mixing a blue dye with a resin-sealing member. CONSTITUTION:A cyanine blue dye as a blue dye is mixed with an epoxy resin used to mold a lens member 19. At a light-emitting diode whose mixture ratio of the blue dye is at 0.25%, the degree of a blue color is increased remarkably in an emitted light color recognized by human eyes. At a light-emitting diode whose mixture ratio of the blue dye is at 0.5%, the degree of the blue color is also increased remarkably in the emitted light color recognized by the human eyes. When the blue color is mixed in this manner, it is possible to reduce a wavelength component which is longer than 490nm. |
