| 摘要 |
PURPOSE:To write information by irradiating both information light and bias light to an image memory panel obtd. by arranging optically finally stable elements in the form of a matrix, to conduct reproduction by irradiating only bias light, and to erase the information by eliminating the bias light. CONSTITUTION:A GaAs layer 1 having about 1-5mum thickness and GaAlAs layers 2 having about 0.1-0.5mum thickness are formed on a GaAs substrate 4 by epitaxial growth, the substrate 4 is selectively etched in the form of a matrix, and dielectric reflecting films 3 are attached to both sides of the panel to fabricate an image memory panel 10. The level of bias light 12 is regulated to a level where 2 stable output light conditions exist to certain input light. The part of the panel 10 irradiated with both information light 11 passed through an image information plate 7 and bias light 12 has an increased quantity of output light, and this state is maintained even after eliminating the light 11. After the information is erased by eliminating the remaining light 12, recording can be repeated in a similar process. |
