| 摘要 |
PURPOSE:To provide an anti-reflection sheet avoiding the glare of the sheet under strong light such as solar light without deteriorating the property of the sheet itself and permit easy writing and reading regardless of the intensity of light source by returning the reflective index to the original state under feeble light such as in a room. CONSTITUTION:The anti-reflection sheet is provided with a reflective layer containing a photochromic compound on the upper face of the sheet. In this case, a printable base material such as paper, plastic, rubber, ceramic, metal, wood, stone or the like is used as the sheet and the sheet may be subjected to billing treatment. The photochromic layer may be composed of a mixture of a photochromic material and a high polymer binder and as the photochromic material, for example, titanium oxide base is suitable used. |
