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

摘要

This 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.