材料:BK7,光學(xué)玻璃,硅              Material: silicon,BK7,Optical glass 設(shè)計波長:0.633微米             Design Wavelength :0.633microns 有效的焦距:±1%                Effective Focal Length :± 1% 清晰的孔:98%的直徑             Clear Aperture :98 % diameter 厚度:0.5—20+/-0.05mm          thickness: 0.5—20 +/-005mm 直徑: 4—150+ 0,- 0.1 mm       Diameter : 4—150 +0/-0.1 mm 斜角:0.25mm@ 45度              Bevel :0.25mm @ 45 degree 表面不規(guī)則:1/4λ@ 10.6微米     Irregularity :1/4λ@ 10.6 um 表面質(zhì)量:60-40                 Surface Quality :60-40 鍍膜: 按客戶需求可進行鍍膜 Coating : According to the customer demand for coatin.