| 发明名称 |
Lens element and lens barrel |
| 摘要 |
A flow lens element is obtained by integrally molding a resin layer on a glass member. A relief portion for preventing the resin material from adhering to an outer circumferential portion of the glass member is provided between the circumferential portion and an optical portion of the glass member.
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| 申请公布号 |
US5361168(A) |
申请公布日期 |
1994.11.01 |
| 申请号 |
US19920874097 |
申请日期 |
1992.04.27 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ARAI, TAKASHI;BABA, YUKIHISA;UMETSU, SACHIO |
| 分类号 |
G02B7/02;(IPC1-7):G02B9/00 |
主分类号 |
G02B7/02 |
| 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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