发明名称 |
Optical device and production method therefor |
摘要 |
An optical device, such as an optical low-pass filter, and a production method therefor, which prevents damage, and thus maintains optical characteristics are provided. The optical device includes a plurality of optical plates joined together with adhesive. The adhesive is spread to extend to the peripheral edge of the optical plates and to the outer periphery of the principal plane surrounding the plurality of optical plates, thus forming a protective coating.
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申请公布号 |
US7572349(B2) |
申请公布日期 |
2009.08.11 |
申请号 |
US20080156826 |
申请日期 |
2008.06.05 |
申请人 |
NIHON DEMPA KOGYO CO., LTD. |
发明人 |
TAKADA MOTOO;KOSEKI RYOICHI;TAKAHASHI KAZUYA;IIZUKA YOSHIMITSU |
分类号 |
B32B37/00;G02B5/30;G02B27/46;G03F9/00 |
主分类号 |
B32B37/00 |
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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