发明名称 |
LWIR IMAGING LENS, IMAGE CAPTURING SYSTEM HAVING THE SAME, AND ASSOCIATED METHODS |
摘要 |
An imaging lens for use with an operational waveband over any subset of 7.5-13.5 μm may include a first optical element of a first high-index material and a second optical element of a second high-index material. At least two surfaces of the first and second optical elements may be optically powered surfaces. A largest clear aperture of all optically powered surfaces may not exceed a diameter of an image circle of the imaging lens corresponding to a field of view of 55 degrees or greater by more than 30%. The first and second high-index materials may have a refractive index greater than 2.2 in the operational waveband, an absorption per mm of less than 75% in the operational waveband, and an absorption per mm of greater than 75% in a visible waveband of 400-650 nm. |
申请公布号 |
KR20140126332(A) |
申请公布日期 |
2014.10.30 |
申请号 |
KR20147023288 |
申请日期 |
2013.01.22 |
申请人 |
FLIR SYSTEMS TRADING BELGIUM BVBA |
发明人 |
HUDDLESTON JEREMY |
分类号 |
G02B13/14 |
主分类号 |
G02B13/14 |
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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