US 11,294,128 B2Granted

Optical module

AssigneeHisense Broadband Multimedia Technologies Co., Ltd.

InventorsGuangchao Du, Dan Li, Yongzheng Tang, Yunpeng Jiang

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Abstract

An optical module includes a housing, at least one optical assembly and at least one sealing member. The housing includes a housing body, a cover and at least one vent hole therein. At least part of each optical assembly is located in the housing body. Each sealing member is located at a respective one of the at least one vent hole. The sealing member has a central axis and includes a first cylinder, a truncated cone, and a second cylinder, a diameter of the first cylinder is greater than a diameter of the second cylinder. Each vent hole is a stepped hole including a portion with a first aperture and a portion with a second aperture, the first aperture is greater than the second aperture. The first cylinder fits the portion with the first aperture, and the second cylinder fits the portion with the second aperture.

Claims19

Dependent claims

An optical module, comprising:

a housing comprising a housing body with an opening and a cover located at the opening, and further comprising at least one hole therein;
at least one optical assembly, at least part of each optical assembly being located in the housing body;
and
at least one sealing member each being located at a respective one of the at least one hole;
wherein
each sealing member has a central axis, and comprises a first cylinder, a truncated cone, and a second cylinder that are connected in sequence along the central axis, a diameter of the first cylinder is greater than a diameter of the second cylinder;
each hole is a stepped hole comprising a portion with a first aperture and a portion with a second aperture, the first aperture is greater than the second aperture;
and
the first cylinder fits the portion with the first aperture, and the second cylinder fits the portion with the second aperture.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/162,159Filed 29 Jan 2021 · continuation in part
Priority: CN 201810860700.61 Aug 2018
Published: US 2021/0149131 A120 May 2021
Granted: 5 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G02B 6/4215
The coupling comprising intermediate optical elements, e.g. lenses, holograms: the intermediate optical elements being wavelength selective…
G02B 6/4251
Packages, e.g. shape, construction, internal or external details: sealed packages
G02B 6/2938
Characterised by the function or use of the complete device: for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g.…
G02B 6/4209
Using non-reciprocal elements or birefringent plates, i.e. quasi-isolators: optical features