Ge Optical Windows φ10mm 20mm Infrared germanium windows Lens for thermal imager HK$ 154.81 至 HK$ 310.41
Optical Interference Filter BP530 530nm Green Laser Pass Bandpass Filter Glass HK$ 62.24 至 HK$ 116.69
Optical Window Zinc Sulphide ZnS / Zinc Selenide ZnSe Window Substrate Material HK$ 140.03 至 HK$ 154.04