| 摘要 |
PROBLEM TO BE SOLVED: To improve luminous efficiency in an LED lighting fixture, and improve light transmissivity of a cover for LED lighting.SOLUTION: By providing an unevenness structure having surface roughness Ra of over 0.3 μm and less than 3.0 μm, on the surface of a cover for LED lighting, both of light diffusivity and transmissivity are attained, and luminous efficiency of an LED lighting fixture can be improved.SELECTED DRAWING: Figure 1 |
