| 摘要 |
<p>PURPOSE:To easily produce the titled filter by selectively transferring a dyestuff or a pigment to a prescribed position of the transparent substrate from a sheet coated with the substance predispersed the dyestuff or the pigment. CONSTITUTION:A porous layer 2 is formed on the transparent substrate 1 to permeate the pigment to the substrate in an after step. The refractive index of the layer 2 is preferable to be almost the same to that of a wax dispersed the pigment, because of scattering the light due to a large difference of the refractive index, when the light passes the titled filter. The pigment is transferred to the prescribed position on the transparent substrate 1 by contacting the sheet 3 dispersed the pigment with the transparent substrate 1 and by heating the substrate with a thermal head 4 from the upperward, thereby forming the colored layer 5 by permeating the pigment into the porous layer 2. by repeating the treatment mentioned above, using the sheet 3 contg. the different sorts of the dyestuffs, the three colored filter is obtd.</p> |
