'产品名称：shg008-011-650（高清5m高拍仪镜头）
specification:
1. construction:4g+ir filter;
2. for 1/2.5" 5m sensor;
3. effec tive focallength:7.3mm;
4. max image circle: ￠8.0mm;
5.f/no:2.6;
6.fov:70°;
7.optice distoriton<-1%;
8.relative illumination:65%(at￠4.5);
9.ir coating:645±10nm at:50%;
10.chief ray angle:&lt;55%;
11.flange back length:2.1mm;
12.ir filter spec.(built-in,other available)
    tavg>=88%@440-620 nm
    t=50%    @645±10 nm
    tavg&lt;=3% @700-1000 nm
    t&lt;5%     @1050 nm;
'

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深圳市涔源光学科技有限公司
周旗辉
15916400580
惠州市惠阳区秋长镇白石塘井村希普赛工业区厂房第四层