| 摘要 |
<p>PURPOSE:To obtain a gradable color record with simple construction and high reliability by using a liquid crystal shutter capable of changing the number of times of driving according to the gradation signal while having one frame of matrix like picture element and photosensitive paper having gradability depending on the change in exposure time. CONSTITUTION:The photosensitive paper 1 has minute capsules with 3 kinds of dyes sealed in by colors, coloring in the 3 primary colors and after curing the capsule not used for recording by exposing to light, and by applying pressure, the capsule not cured breaks and colors, thereby attaining gradation depending on the exposure time. The light from the white light source 3 is passed through the color filters, 6, 7 or 8 of the filter plate 5 to obtain light of wavelength curing the capsule corresponding to each color. Such light is provided in matrix form for a frame of picture element and is irradiated on the photosensitive paper 1 after passing through a liquid crystal shutter 4 with the driving frequency of each picture element variable according to the gradation signal. After exposure of the 3 primary colors and compressing the photosensitive paper 1, color recording with gradation is obtained.</p> |
