发明名称 |
Micro-lens sheet and projection screen |
摘要 |
In order to provide a micro-lens sheet in which unit lenses are disposed in highly accurate pitch so as to control the light diffusing characteristics of the light emission direction not only in a horizontal direction but also over 360 degrees by using the lens function of one piece of lens sheet, a micro-lens sheet has a micro-lens array section in which unit lenses are disposed in approximate matrix in a second dimensional manner on at least one surface of a base board, and the micro-lens array section is formed on only one surface of the base board, the micro-lens array section includes the unit lens having an aspherical shape, and disposition pitch of neighboring unit lenses is 200 mum or shorter.
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申请公布号 |
US2004004770(A1) |
申请公布日期 |
2004.01.08 |
申请号 |
US20030343450 |
申请日期 |
2003.01.31 |
申请人 |
EBINA KAZUYOSHI;ABE TAKASHI;MIYASHITA MASARU;TAKAHASHI SUSUMU |
发明人 |
EBINA KAZUYOSHI;ABE TAKASHI;MIYASHITA MASARU;TAKAHASHI SUSUMU |
分类号 |
G03B21/62;(IPC1-7):G02B3/00;G02B9/00 |
主分类号 |
G03B21/62 |
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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