| US 7,542,647 B2 | ||
| Optical reception and transmission module | ||
| Shigemi Ohtsu, Kanagawa (Japan); Toshihiko Suzuki, Kanagawa (Japan); Keishi Shimizu, Kanagawa (Japan); Kazutoshi Yatsuda, Kanagawa (Japan); Masahiro Igusa, Kanagawa (Japan); Akira Fujii, Kanagawa (Japan); and Eiichi Akutsu, Kanagawa (Japan) | ||
| Assigned to Fuji Xerox Co, Ltd., Tokyo (Japan) | ||
| Filed on Jul. 24, 2008, as Appl. No. 12/178,708. | ||
| Claims priority of application No. 2007-274928 (JP), filed on Oct. 23, 2007. | ||
| Prior Publication US 2009/0103857 A1, Apr. 23, 2009 | ||
| Int. Cl. G02B 6/10 (2006.01) | ||
| U.S. Cl. 385—130 [385/129; 385/131; 385/88; 385/89] | 20 Claims |
| 1. An optical reception and transmission module comprising:
an optical waveguide film formed with an optical waveguide;
an optical transmission unit having a light emitting device and a first holding member for holding the light emitting device,
and which holds a first end portion of the optical waveguide film on the first holding member so that light emitted from the
light emitting device is coupled to an incident end surface of the optical waveguide; and
an optical reception unit comprising a light receiving device and a second holding member for holding the light receiving
device, and which holds a second end portion of the optical waveguide film on the second holding member so that light emitted
from an emitting end surface of the optical waveguide is received by the light receiving device,
wherein at least the optical waveguide film is covered with flame-retardant resin having flame retardancy of HB or higher
according to a UL-94 test and a minimum bending radius of the optical waveguide film covered with the flame-retardant resin
and having a flame-retardant resin layer formed on a surface thereof is from 1 mm to 3 mm.
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