PROBLEM TO BE SOLVED: To provide a light source device capable of changing intensity of reflected light in a substantially linear manner with respect to change in light emission intensity of a light source.SOLUTION: A light source device 300 comprises; light sources; apertures that are disposed in light paths of light from respective light sources to shape the light; and a tabular light path splitting element 119 that is disposed on a light path of the light shaped by the apertures to split the incident light into transmitted light and reflected light; and is configured to satisfy a condition expressed as: 2×d×cosθ×tan[arcsin(sinθ÷n)]>0.5×D, where d represents a thickness of the light path splitting element, n represents a refractive index of the light path splitting element, θ represents an incident angle of the incident light with respect to the light path splitting element, and D represents an opening diameter of the aperture.SELECTED DRAWING: Figure 6
【課題】 光源の発光光量の変化に対して反射光の光量を略リニアに変化させることができる光源装置を提供する。【解決手段】 光源装置300は、光源と、該光源からの光の光路上に配置され、該光を整形するアパーチャと、アパーチャで整形された光の光路上に配置され、入射光を透過光と反射光に分岐する平板状の光路分岐素子119と、を備え、2×d×cosθ×tan[arcsin(sinθ÷n)]>0.5×Dが成立する。但し、d:光路分岐素子の厚さn:光路分岐素子の屈折率θ:光路分岐素子に対する入射光の入射角D:アパーチャの開口径【選択図】図6
LIGHT SOURCE UNIT, IMAGE DISPLAY DEVICE, AND OBJECT DEVICE
光源装置、画像表示装置及び物体装置
2018-01-11
Patent
Elektronische Ressource
Japanisch
LIGHT SOURCE DEVICE, IMAGE DISPLAY UNIT AND OBJECT DEVICE
Europäisches Patentamt | 2018
|LIGHT SOURCE DEVICE, IMAGE DISPLAY DEVICE, AND OBJECT DEVICE
Europäisches Patentamt | 2017
|