发明名称 |
Light box display panel - has elongated light source, light-equalising sandwich panel and image sheet on opal panel with transparent cover plate |
摘要 |
<p>Light panel comprises at least one elongated light source; on one or both sides of the light source, an opt. removable assembly of an opal plate, an image sheet and a light transmissive cover plate; and between the light source and the assembly, a light-equalising sandwich plate.</p> |
申请公布号 |
NL8802729(A) |
申请公布日期 |
1990.06.01 |
申请号 |
NL19880002729 |
申请日期 |
1988.11.07 |
申请人 |
ROYAL T, INC. TE ALEXANDRIA, VIRGINIE, VER. ST. V. AM. |
发明人 |
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分类号 |
G02B5/02 |
主分类号 |
G02B5/02 |
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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