US 9,813,218 B2
Duplex LC communication light detecting adapter and duplex LC communication light detecting structure
Kanako Suzuki, Hitachi (JP); Takao Nishikawa, Itabashi-ku (JP); and Toshiyuki Suzuki, Saitama (JP)
Assigned to Hitachi Metals, Ltd., Tokyo (JP)
Filed by Hitachi Metals, Ltd., Tokyo (JP)
Filed on Apr. 2, 2015, as Appl. No. 14/677,838.
Claims priority of application No. 2014-077919 (JP), filed on Apr. 4, 2014.
Prior Publication US 2015/0288447 A1, Oct. 8, 2015
Int. Cl. G02B 6/38 (2006.01); H04B 10/079 (2013.01); H04L 5/14 (2006.01); G02B 6/42 (2006.01)
CPC H04L 5/14 (2013.01) [G02B 6/3825 (2013.01); G02B 6/3895 (2013.01); G02B 6/4287 (2013.01); G02B 6/4246 (2013.01); G02B 6/4292 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A duplex LC communication light detecting adapter for forming two parallel optical transmission lines therein when a duplex LC connector is inserted so as to extract as a leak light a portion of communication light transmitting through the optical transmission lines, comprising, an adapter main both that is opaque to light,
wherein the adapter main body comprises:
a first place defined by a first wall and isolated from other spaces to arrange a first optical transmission line of the two optical transmission lines:
a first light extraction hole for extracting the leak light from the first space:
a second space defined by a second wall and isolated from other spaces to arrange a second optical transmission line of the two optical transmission lines; and
a second tight extraction hole for extracting the leak light from the second space,
further comprising:
a first light reflecting layer formed on the first wall; and
a second light reflecting layer formed on the second wall.