White reflective film for direct surface light source and direct surface light source using same

A white reflective film for a direct surface light source has a light source provided with a lens cap, wherein: the reflective film has a reflective layer A, and a surface layer B including a resin as a main constituent component and containing particles; and the surface of the surface layer B has a glossiness of not less than 3 and less than 16 at an incident angle of 85 degrees, and a glossiness of not less than 17 and less than 50 at an incident angle of 60 degrees. When this film is used for a direct surface light source having a light source provided with a lens cap (particularly, a reflective lens cap) as a light source thereof, luminance non-uniformity can be appropriately inhibited. 种直下型面光源用白色反射膜，该直下型面光源具有带透镜罩的光源，该直下型面光源用白色反射膜具有反射层A和以树脂为主要构成成分且含有颗粒的表面层B，其特征在于，表面层B的表面在入射为角85度时的光泽度在3以上、小于16，入射角为60度时的光泽度在17以上、小于50。该膜在用于使用具备透镜罩(特别是反射型透镜罩)的光源作为光源的直下型面光源用途时，可适宜地抑制亮度不均。