发明名称 |
METHOD OF MAKING AN IMAGE TRANSMITTING DEVICE |
摘要 |
A method of forming an image transmitting device by forming a sandwich structure comprising a center of a first film having a high refractive index and a low melting point sandwiched between two second films having a low refractive index and a medium melting point, the center being sandwiched between two third filmshaving a high melting point. The sandwich structure is heated and pressed in a grooved mold such that the first film forms columns surrounded by the second film. The pressed sandwich structures may then be stacked and cut.
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申请公布号 |
US3728422(A) |
申请公布日期 |
1973.04.17 |
申请号 |
USD3728422 |
申请日期 |
1971.12.17 |
申请人 |
FUJI PHOTO FILM CO LTD,JA |
发明人 |
SUGAYA F,JA |
分类号 |
G02B6/04;B29C33/42;B29C59/02;B29C65/00;B29C65/02;B29D11/00;B44F1/02;G02B6/13;(IPC1-7):B29D11/00 |
主分类号 |
G02B6/04 |
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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