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正焦距BK7彎月透鏡
正彎月透鏡一般用於減小另一透鏡的焦距,同時保持鏡頭的的空間分辨率,通常將這些透鏡與另一正透鏡配對使用,以獲得更好的聚焦效果。其材質包括但不限於BK7、紫外熔融石英、CaF2和ZnSe。 

材料...................................................................................BK7

設計波長......................................................................546.1nm

設計折射率......................................................................1.5183

外徑公差.............................................................+0.00,-0.15mm

旁軸焦距誤差............................±2%(f<400mm);±5%(f>=400mm)

中心偏.................................................................<3 arc minutes

有效孔徑..........................................................................>90%

光潔度.............................................................................60-40

倒角..........................................................................保護性倒角

P/NfΦtctefb
30501100.025.44.02.597.5
30502125.025.44.02.8121.8
30503150.025.44.03.0146.3
30504175.025.44.03.1171.2
30505200.025.43.52.8197.0
30506250.025.43.52.9246.5
30507300.025.43.53.0296.3
30508350.025.43.53.1346.0
30509400.025.43.53.1395.8
30510500.025.43.53.2495.4
30511600.025.43.53.2595.3
30512800.025.43.53.3794.5
305131000.025.43.53.3993.7
305141500.025.43.53.41492.0
305152000.025.43.53.41990.2
305164000.025.43.53.53984.5
●尺寸單位:毫米
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