US5195155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical coupling apparatus and manufacturing method of the same, and lens holder
Assignee: Opnext Japan Inc
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Filing: 1990-05-21
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Granted: 1993-03-16
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Expires: 2010-05-21
Abstract
Abstract An optical coupling apparatus including a light emitting diode, a lens, an optical isolator and an optical fiber disposed on a common optical axis is improved in the optical coupling efficiency. The individual optical elements are roughly adjusted in the respective positions and fixed, and then a precise and fine adjustment is effectuated by plastically deforming a portion of a holder for supporting the lens or the optical isolator and/or by adjusting inclination of the holder. The holder imparted with the fine adjustment capability can be implemented as a lens holder.
Inventors
- 👤 Makoto Shimaoka
- 👤 Tetsuo Kumazawa
- 👤 Yasutoshi Yagiu
- 👤 Atsushi Sasayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4204; G02B6/4207; G02B6/4208; G02B6/4219; G02B6/422; G02B6/4226; G02B7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
A method of aligning an optical axis of an optical module comprising a plurality of optical parts including at least a first lens and a second lens and an optical isolator disposed on said optical axis interconnecting an optical coupling end of an optical fiber and a light emitting diode, said first lens being mounted in a first lens fixing pipe, said first lens, said second lens, and said optical isolator being mounted in a package, said method including the steps of: provisionally aligning the first lens with respect to said optical axis fixing the first lens to the package; and subsequently readjusting the first lens located remotely from said optical coupling end of the optical fiber by an adjustment of said fixing pipe.
Claim 2
Independent Claim
124 words
A method of aligning an optical axis of an optical module comprising a plurality of optical parts including at least a first lens and a second lens and an optical isolator disposed on said optical axis interconnecting an optical coupling end of an optical fiber and a light emitting diode, said first lens being mounted in a first lens fixing pipe, said first lens, said second lens, and said optical isolator being mounted in a package, said method including the steps of: provisionally aligning the first lens with respect to said optical axis fixing the first lens to the package; and subsequently readjusting the first lens located remotely from said optical coupling end of the optical fiber by an adjustment of said fixing pipe.
Claim 3
Dependent Claim
60 words
An optical module comprising a light emitting diode, an optical element holder and an optical function element, said optical element holder being aligned to be on an optical axis between said light emitting diode and the optical function element, wherein said element holder further includes means for plastically deforming said optical element holder to be aligned to said optical axis.
Claim 4
Dependent Claim
60 words
An optical module comprising a light emitting diode, an optical element holder and an optical function element, said optical element holder being aligned to be on an optical axis between said light emitting diode and the optical function element, wherein said element holder further includes means for plastically deforming said optical element holder to be aligned to said optical axis.
References Cited (Backward Citations)
US3826998A
Cited
US3963323A
Cited
US4997243A
Cited
US4803689A
Cited
US4886337A
Cited
US4962990A
Cited
US4893890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-15 | 1996-09-14 | 1997-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-15 | 2000-09-14 | 2001-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-15 | 2004-09-14 | 2005-03-16 | $7700.00 | Window Closed / Lapsed |