US5414786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical waveguide component with a molded resin portion having accurately aligned guide pin holes therein
Assignee: Furukawa Electric Co Ltd
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Filing: 1993-10-04
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Granted: 1995-05-09
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Expires: 2013-10-04
Abstract
Abstract An optical waveguide component which has end faces to be connected with optical fiber connectors by means of guide pins, comprises an optical waveguide component body having an optical waveguide core portion, and a resin mold cladding portion covering all the faces of the optical waveguide component body except for the end faces of the optical waveguide component body. Each end face of the resin mold portion has guide pin holes which were formed with the optical waveguide core portion being used as a positioning reference. Since the guide pin holes for connection with the optical fiber connectors are formed in the resin mold portion which, preferably has some elasticity and which covers the optical waveguide component body, the guide pin holes and a substrate are not broken even if subjected to a load after connection.
Inventors
- 👤 Toshihiko Ohta
- 👤 Takashi Shigematsu
- 👤 Takeo Shimizu
- 👤 Shiro Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:15
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3865; G02B6/26; G02B6/30; G02B6/3873
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
191 words
A substantially flat optical waveguide component (A) which has end faces which are to be connected with respective faces of optical fiber connectors by means of guide pins, the optical waveguide component comprising: a substantially flat optical waveguide component body (A 1 ) having a cladding portion (3) formed on a substrate (1), and a core portion (2) embedded in the cladding portion (3), said optical waveguide component body (A 1 ) having end faces at said end faces of said optical waveguide component (A); a resin mold portion (A 2 ) covering all of the surfaces of said optical waveguide component body (A 1 ) except for said end faces thereof, said resin mold portion (A 2 ) having end faces at said end faces of said optical waveguide component (A); and said end faces of said resin mold portion (A 2 ) having guide pin holes (9a, 9b) therein, and wherein said guide pin holes (9a, 9b) are positioned using said optical waveguide core portion (2) as a reference, whereby accurate positioning of said guide pin holes (9a, 9b) relative to said optical waveguide core portion (2) is obtained.
Claim 2
Dependent Claim
191 words
A substantially flat optical waveguide component (A) which has end faces which are to be connected with respective faces of optical fiber connectors by means of guide pins, the optical waveguide component comprising: a substantially flat optical waveguide component body (A 1 ) having a cladding portion (3) formed on a substrate (1), and a core portion (2) embedded in the cladding portion (3), said optical waveguide component body (A 1 ) having end faces at said end faces of said optical waveguide component (A); a resin mold portion (A 2 ) covering all of the surfaces of said optical waveguide component body (A 1 ) except for said end faces thereof, said resin mold portion (A 2 ) having end faces at said end faces of said optical waveguide component (A); and said end faces of said resin mold portion (A 2 ) having guide pin holes (9a, 9b) therein, and wherein said guide pin holes (9a, 9b) are positioned using said optical waveguide core portion (2) as a reference, whereby accurate positioning of said guide pin holes (9a, 9b) relative to said optical waveguide core portion (2) is obtained.
Claim 3
Dependent Claim
16 words
The substantially flat optical waveguide component of claim 1, wherein said resin mold portion has elasticity.
Claim 4
Dependent Claim
71 words
The substantially flat optical waveguide component of claim 2, further comprising a plate member (8) on a side of said cladding portion (3) which is opposite to said substrate, whereby said cladding portion (3) is arranged between said substrate (1) and said plate member (8), said resin mold portion (A 2 ) covering said plate member (8) except at said end face of said optical waveguide component body (A 1 ).
Claim 5
Dependent Claim
24 words
The substantially flat optical waveguide component of claim 3, wherein said plate member (8) is secured to said cladding portion (3) by an adhesive.
Claim 6
Dependent Claim
34 words
The substantially flat optical waveguide component of claim 3, wherein at least one marker portion (8a, 8b) is formed in said plate member (8) at a predetermined location relative to said core portion (2).
Claim 7
Dependent Claim
45 words
The substantially flat optical waveguide component of claim 5, wherein said guide pin holes (9a, 9b) are positioned at predetermined positions relative to said at least one marker portion (8a, 8b), whereby said guide pin holes are accurately positioned relative to said core portion (2).
Claim 8
Dependent Claim
27 words
The substantially flat optical waveguide component of claim 6, wherein said at least one marker portion comprises at least one groove (8a, 8b) in said plate member.
Claim 9
Dependent Claim
27 words
The substantially flat optical waveguide component of claim 5, wherein said at least one marker portion comprises at least one groove (8a, 8b) in said plate member.
Claim 10
Dependent Claim
39 words
The substantially flat optical waveguide component of claim 5, wherein said at least one marker portion comprises a pair of spaced-apart marker portions (8a, 8b) formed in said plate member at predetermined locations relative to said core portion (2).
Claim 11
Dependent Claim
43 words
The substantially flat optical waveguide component of claim 9, wherein said guide pin holes (9a, 9b) are positioned at predetermined positions relative to respective ones of said marker portions, whereby said guide pin holes are accurately positioned relative to said core portion (2).
Claim 12
Dependent Claim
20 words
The substantially flat optical waveguide component of claim 10, wherein said marker portions comprise respective grooves in said plate member.
Claim 13
Dependent Claim
20 words
The substantially flat optical waveguide component of claim 9, wherein said marker portions comprise respective grooves in said plate member.
Claim 14
Dependent Claim
16 words
The substantially flat optical waveguide component of claim 9, wherein said resin mold portion has elasticity.
Claim 15
Dependent Claim
16 words
The substantially flat optical waveguide component of claim 5, wherein said resin mold portion has elasticity.
References Cited (Backward Citations)
US4401361A
Cited
JPS62136615A
Cited
JPS62276513A
Cited
JPH01291204A
Cited
JPH0271207A
Cited
JPH02251918A
Cited
EP0458608A1
Cited
US5067830A
Cited
US5121459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-08 | 1998-11-07 | 1999-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-08 | 2002-11-07 | 2003-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-08 | 2006-11-07 | 2007-05-09 | $7700.00 | Window Closed / Lapsed |