| 摘要 |
PURPOSE:To obtain an optical modulating element of high quality which has a wide visual angle and superior articulation and causes no eye fatigue by sandwiching a gel layer which scatters light when heated and transmits light when cooled between a transparent substrate and a transparent protection layer. CONSTITUTION:The gel layer 2 is sandwiched between the transparent substrate 1 and transparent protection plate 3 and when the gel layer 2 is in a low temperature state, its distribution of polymer molecule chains is uniform, so an incident light beam 6-1 is transmitted through the layer 2 as it is and reflected regularly by the surface of the substrate 1. When the layer 2 is heated at a specific position 4 by being irradiated with an infrared beam 2 5 according to an information signal, the molecule chain distribution is divided into a rough and a fine area to cause a light scatter, so the incident light beam 6-2 to the heated area 4 is scattered and modulated optically. Thus, a sharp, high-resolution image with high contrast is obtained, the visual angle is not limited, and the power consumption is reduced.
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