G - Physics
02
B
G02B 6/26 (2006.01) G02B 1/11 (2006.01) G02B 6/32 (2006.01) G02B 27/30 (2006.01)
Patent
CA 2408736
The optical device, capable of reducing reflectance over a wide wavelength region, has an anti-reflection film interposed between a rod lens and an optical fiber. The anti-reflection film includes a plurality of laminas. The refractive index of the lamina contiguous to the optical fiber is matched with that of the optical fiber, while the refractive index of the lamina contiguous to the rod lens is matched with that of the rod lens. The laminas are set to have refractive indices such that the refractive index of the optical fiber and that of the rod lens are connected to each other to form a smooth curve.
Anzaki Toshiaki
Kunisada Terufusa
Mori Kenji
Oikawa Masahiro
Nippon Sheet Glass Co. Ltd.
Ridout & Maybee Llp
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