求助CCD

Oliver

求助CCD如下，

1.Single Lens (1 group 1 element) for 1/4inch CCD, Focal Length:18-20mm, either
2.Single Lens (1 group 1 element) for 1/3inch CCD, Focal Length:18-20mm
3.Single Lens (1 group 1 element) for 1/4inch CCD, Focal Length:18-20mm
Material:either Glass or Plastic
Quantity:1000,5000,10000pcs for each lens

请问有谁知道在华东地区哪家做CCD质量较好且价格公道，谢谢。