| US 7,510,338 B2 | ||
| Optical transmitting/receiving apparatus | ||
| Shin-ichi Sakuramoto, Kawasaki (Japan); Masakazu Horishita, Kawasaki (Japan); Kazuya Sasaki, Kawasaki (Japan); Masaki Kunii, Kawasaki (Japan); and Tetsuya Yamada, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Aug. 24, 2007, as Appl. No. 11/892,652. | ||
| Application 11/892652 is a continuation of application No. PCT/JP2006/303465, filed on Feb. 24, 2006. | ||
| Claims priority of application No. 2005-051674 (JP), filed on Feb. 25, 2005. | ||
| Prior Publication US 2008/0008428 A1, Jan. 10, 2008 | ||
| Int. Cl. G02B 6/36 (2006.01) | ||
| U.S. Cl. 385—92 [385/94; 398/138; 398/139; 398/142; 398/164] | 12 Claims |
| 1. An optical apparatus, comprising:
an integrated module that accommodates a laser diode and a photo diode and terminates an optical fiber;
a circuit board electrically connected to a lead pin leading out of the integrated module; and
a case that accommodates the circuit board therein and that is formed of a material that includes a plastic substance;
wherein at least a part of the case abuts the integrated module;
impedance of the case is controlled by mixing a conductive filler into the case material; and
content of the conductive filler in the case material being approximately 20% to 30%.
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