发明名称 |
PLASTIC OPTICAL ELEMENT, OPTICAL SCANNER INCLUDING THE PLASTIC OPTICAL ELEMENT, AND IMAGE FORMING APPARATUS INCLUDING SAME |
摘要 |
A plastic optical element for focusing light to a target includes a first lens and a second lens. The first lens includes an incident surface, a projection surface opposite the incident surface, and a non-optical surface through which light does not pass and that includes a non-transfer portion. At least one light beam passes from the incident surface to the projection surface. The second lens includes an incident surface, a projection surface opposite the incident surface, and a non-optical surface through which light does not pass and that includes a non-transfer portion disposed opposite the non-optical surface of the first lens. At least one light beam passes from the incident surface to the projection surface. The non-transfer portions of the first lens and the second lens are portions on which no surface is transferred from a surface of a mold used to form the plastic optical element.
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申请公布号 |
US2011304896(A1) |
申请公布日期 |
2011.12.15 |
申请号 |
US201113152538 |
申请日期 |
2011.06.03 |
申请人 |
TAKAHASHI GO;HAYASHI EIICHI;HIRANO AKIO;OHHASHI TAKAMICHI;AOKI KAN |
发明人 |
TAKAHASHI GO;HAYASHI EIICHI;HIRANO AKIO;OHHASHI TAKAMICHI;AOKI KAN |
分类号 |
G02B26/10;G02B3/00 |
主分类号 |
G02B26/10 |
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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