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Invention Application
WO2020144983A1 光源装置及び画像表示装置 审中-公开

光源装置及び画像表示装置
Abstract:
光を高効率で合波する光源装置及び画像表示装置を提供する。　第１波長域の光を出射する第１光源部と、前記第１波長域の光が入射され、第１照明光を出射する第１照明光学系と、第２波長域の光を出射する第２光源部と、前記第２波長域の光が入射され、第２照明光を出射する第２照明光学系と、前記第１照明光と前記第２照明光とが入射される合波器とを備えており、前記合波器が、前記第１照明光の波長域と入射角度に基づいて、前記第１照明光をフィルタリングする特性と、前記第２照明光の波長域と入射角度に基づいて、前記第２照明光をフィルタリングする特性とを有し、前記合波器から出射される前記第１照明光の波長域と、前記合波器から出射される前記第２照明光の波長域とが近づく又は重なり合うように、前記第１照明光と前記第２照明光が前記合波器に入射される角度がそれぞれ調整されている、光源装置を提供する。
Abstract(English):

Provided are: a light source device that combines light with high efficiency; and an image display device. Provided is a light source device comprising: a first light source unit that emits light in a first wavelength range; a first illumination optical system to which the light in the first wavelength range is incident and which emits first illumination light; a second light source unit that emits light in a second wavelength range; a second illumination optical system to which the light in the second wavelength range is incident and which emits second illumination light; and a multiplexer to which the first illumination light and the second illumination light are incident, wherein the multiplexer has a characteristic of filtering the first illumination light on the basis of the wavelength range and the incident angle of the first illumination light and a characteristic of filtering the second illumination light on the basis of the wavelength range and the incident angle of the second illumination light, and angles at which the first illumination light and the second illumination light are incident to the multiplexer are adjusted such that the wavelength range of the first illumination light emitted from the multiplexer and the wavelength range of the second illumination light emitted from the multiplexer approach or overlap each other.

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