发明名称 |
Optical device |
摘要 |
An optical device includes a base of ring shape, and an optical chip and a transparent plate both attached to the base. The upper surface of the base is formed with a tapered recess inclined downwardly from its flat portion toward the opening. A gap between the tapered recess and the transparent plate is formed with an adhesive layer. Even if a gap between the transparent plate and the flat portion of the base is narrowed, the adhesive layer with a great thickness present between the tapered recess and the lower surface of the transparent plate maintains the mechanical adhesion strength between the base and the transparent plate. A raised ring and a recessed ring prevent adhesive from entering a positioning hole and the opening. <IMAGE> |
申请公布号 |
EP1560271(A2) |
申请公布日期 |
2005.08.03 |
申请号 |
EP20040024786 |
申请日期 |
2004.10.18 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MINAMIO, MASANORI;NISHIO, TETSUSHI |
分类号 |
G03H1/00;H01L21/50;H01L23/02;H01L25/16;H01L27/14;H01L27/146;H01L31/02;H01L31/0203;H01L31/0232;H04N5/225;H04N5/335;H05K1/18;(IPC1-7):H01L31/020;H01L31/023;H01L33/00 |
主分类号 |
G03H1/00 |
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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