US Patent No. 9,832,916


Patent No. 9,832,916
Issue Date November 28, 2017
Title Emi Shielding Device For An Optical Transceiver
Inventorship Shaoyou Zhang, Chengdu (CN)
Shengzhong Zhang, West Hills, CA (US)
Assignee Source Photonics (Chengdu) Co., Ltd., Chengdu (CN)

Claim of US Patent No. 9,832,916

1. An EMI shielding device for an optical transceiver, comprising:
a shell with an optical interface at a first end and an electrical interface at a second end,
wherein said shell includes a base and an upper cover,
said upper cover comprises an upper cover plate and at least two flanks, each flank having an upper cover lateral plate that
extends downward and that includes a lower end or surface,

said base comprising a base plate having at least two flanks, each flank having a base side baffle,
an engagement structure comprising one or more tongues or tabs on one of the upper cover and the base, and one or more grooves
or slots on the other of the upper cover and the base, the one or more tongues or tabs being insertable into the one or more
grooves or slots;

at least said upper cover plate being between the base side baffles,
each lower end or surface of said upper cover lateral plates adjacent to the optical interface has serrations thereon, wherein
the serrations comprise a conductive material and are absent in regions of the upper cover lateral plates in or near the electrical
interface, and

said EMI shielding device further comprises a conductive gasket under the serrations and in contact with the base, wherein
the base comprises a locating groove that accommodates the conductive gasket, has a width of up to 1.5 times a width of the
conductive gasket, and a depth of up to 5 times a height of the conductive gasket.