发明名称 |
Zoom optical system and electronic system incorporating it |
摘要 |
The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom optical system comprises a lens group having negative refracting power and a lens group having positive refracting power. At least one lens is formed by molding of a first lens blank ( 11 ) that provides a surface including at least an optical function surface after molding, and a second lens blank ( 12 ) that provides a surface other than said surface including at least an optical function surface after molding, wherein the first lens blank ( 11 ) and the second lens blank ( 12 ) are integrated into a one-piece lens ( 10 ).
|
申请公布号 |
US2008074762(A1) |
申请公布日期 |
2008.03.27 |
申请号 |
US20070981998 |
申请日期 |
2007.10.31 |
申请人 |
|
发明人 |
MINAKATA HIROYUKI;IKEMACHI MASARU;ADACHI KANATO |
分类号 |
G02B9/06;G02B13/00;G02B15/14;G02B15/177 |
主分类号 |
G02B9/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|