发明名称 |
Telecentric zoom lens |
摘要 |
A telecentric zoom lens having telecentric forming aperture optically and preferably mechanically intermediate an objective lens and a zoom group. The aperture is fixed along an optical axis and selected to provide a constant speed on an image side of the lens system. The location of the aperture relative to the zoom group maintains telecentricity of the lens in object space.
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申请公布号 |
US6243212(B1) |
申请公布日期 |
2001.06.05 |
申请号 |
US19990364673 |
申请日期 |
1999.07.30 |
申请人 |
AMAREL PRECISION INSTRUMENTS, INC. |
发明人 |
SANSON MARK C.;ZINTER J. ROBERT |
分类号 |
G02B15/167;G02B13/22;G02B15/177;(IPC1-7):G02B15/14;G02B13/32 |
主分类号 |
G02B15/167 |
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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