本文的目的是阐明对绘画可见度偏好的评价结构，同时考虑到低反射率绘画的特点。尽管《博物馆照明标准》（CIE 157:2004）中使用了照度，但设计照明时最好也从感知亮度的角度考虑亮度。因此，我们进行了以亮度比为实验变量的油画主观实验，并检验了低反射率油画的评价结构。结果发现，对黑色细节的评估会影响对低反射率绘画可见性的偏好。 然而，应用于每幅绘画的评估结构的路径图不同，这表明仅通过平均反射率很难表示绘画的特征。

The purpose of this paper is to clarify the evaluation structure of the preference for the visibility of paintings, taking into account the characteristics of paintings with low reflectance. Although illuminance is used in the standards for museum lighting (CIE 157:2004), it is desirable to design lighting that also considers luminance from the viewpoint of perceived brightness. Therefore, we conducted the subjective experiment of oil paintings in which luminance ratio was set as an experimental variable and examined the evaluation structure of paintings with low reflectance. As a result, it was found that the evaluation of black details affects the preference for the visibility of paintings with low reflectance. However, the path diagram of the evaluation structure applied to each painting was different, indicating that it is difficult to represent the characteristics of a painting only by the mean reflectance.