发明名称 |
Digital image forming apparatus |
摘要 |
The present invention allows formation of an image having an excellent finish quality by using an extremely simple and low-cost structure. Linearly polarized light transmitted through each of liquid crystal cells of a liquid crystal panel is made into circularly polarized light by a quarter-wave phase plate, and thereafter, the circularly polarized light is used to expose a photographic printing paper via lithium-niobate prisms serving as a birefringent filter. As a result, light transmitted through a light transmitted area of each of the liquid crystal cells is irradiated on a region on the photographic printing paper corresponding to a light non-transmitted area so as to prevent formation of a pattern caused by the light non-transmitted area.
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申请公布号 |
US6081346(A) |
申请公布日期 |
2000.06.27 |
申请号 |
US19970923420 |
申请日期 |
1997.09.04 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
TERAJIMA, AKIROU;OGASAWARA, MAMORU |
分类号 |
G02F1/13;B41J2/465;G03B27/32;G03B27/72;(IPC1-7):H04N1/21 |
主分类号 |
G02F1/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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