EP0356331A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Optical module and method of manufacturing same
Assignee: Fujitsu Ltd
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Filing: 1989-08-22
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Granted: —
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Expires: 2009-08-22
Abstract
Abstract An optical module in which light emitted from a light emitting element (26) fixed to a substrate (25) is made incident on an optical fiber (27) through an optical lens (24), including a lens holder (20) which immovably supports the optical lens (24), and a lens holder guide (21) fixed to the substrate (25) to support the lens holder (20). The invention is also directed to a method of manufacturing an optical module including moving the holder guide (21) and the lens holder (20) on the substrate (25) and in the lens holder guide, in orthogonal x-y directions and in a z-direction perpendicular to the x-y directions, respectively, to adjust the position of the lens (24), so that the light emitted from the light emitting element (26) is incident on the optical fiber (27), and then fixing the lens holder guide and the lens holder to the substrate and then the lens holder guide, respectively.
Inventors
- 👤 Kitoshi Kinoshita
- 👤 Hiroatsu Aoki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 02:44
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4219; G02B6/422; G02B6/4226; G02B6/4204; G02B6/4225; G02B6/4236; G02B6/4237
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
60 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a cylindrical annular lens holder guide fixed to the substrate to support the lens holder.
Claim 2
Dependent Claim
60 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a cylindrical annular lens holder guide fixed to the substrate to support the lens holder.
Claim 3
Dependent Claim
25 words
An optical module according to claim 1, wherein said lens holder is cylindrical, so that it can be snugly fitted in the lens holder guide.
Claim 4
Dependent Claim
44 words
An optical module according to claim 2, wherein said lens holder has a lens insertion hole which extends therethrough in a direction perpendicular to the axis of the cylinder of the lens holder, so that the lens is inserted in the lens insertion hole.
Claim 5
Dependent Claim
20 words
An optical module according to claim 3, wherein said lens holder guide is fixed to the substrate by laser welding.
Claim 6
Dependent Claim
21 words
An optical module according to claim 3, wherein said lens holder is fixed to the lens holder guide by laser welding.
Claim 7
Dependent Claim
71 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a plate fixed to the substrate to support the lens holder, said lens holder plate having an opening in which the lens holder is snugly inserted.
Claim 8
Dependent Claim
71 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a plate fixed to the substrate to support the lens holder, said lens holder plate having an opening in which the lens holder is snugly inserted.
Claim 9
Dependent Claim
21 words
An optical module according to claim 6, wherein said substrate has an opening in which the lens holder is movably received.
Claim 10
Dependent Claim
68 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a generally angular U-shaped lens holder guide having opposite parallel flat side walls and fixed to the substrate to support the lens holder.
Claim 11
Dependent Claim
68 words
An optical module in which light emitted from a light emitting element secured to a substrate is made incident on an optical fiber through an optical lens, comprising a lens holder which immovably supports the optical lens, and a lens holder holding member which is a generally angular U-shaped lens holder guide having opposite parallel flat side walls and fixed to the substrate to support the lens holder.
Claim 12
Dependent Claim
25 words
An optical module according to claim 8, wherein said lens holder has a parallelepiped body which can be snugly fitted in the lens holder guide.
Claim 13
Dependent Claim
45 words
An optical module according to claim 9, wherein said lens holder and the lens holder guide are welded to each other by laser welding in which a laser is made incident upon the side walls of the lens holder guide at a right angle thereto.
Claim 14
Independent Claim
139 words
A method of manufacturing an optical module in which light emitted from a light emitting element fixed to a substrate is made incident on an optical fiber through an optical lens, in which the lens is secured to a lens holder movably supported in a lens holder holding member movably supported on the substrate, wherein the method comprises moving the lens holder holding member and the lens holder in orthogonal x-y directions on the substrate and moving the lens holder in a z-direction perpendicular to the x-y directions in the lens holder holding member, to adjust the position of the lens, so that the light emitted from the light emitting element is incident on the optical fiber, and then fixing the lens holder holding member and the lens holder to the substrate and the lens holder holding member, respectively.
Claim 15
Independent Claim
139 words
A method of manufacturing an optical module in which light emitted from a light emitting element fixed to a substrate is made incident on an optical fiber through an optical lens, in which the lens is secured to a lens holder movably supported in a lens holder holding member movably supported on the substrate, wherein the method comprises moving the lens holder holding member and the lens holder in orthogonal x-y directions on the substrate and moving the lens holder in a z-direction perpendicular to the x-y directions in the lens holder holding member, to adjust the position of the lens, so that the light emitted from the light emitting element is incident on the optical fiber, and then fixing the lens holder holding member and the lens holder to the substrate and the lens holder holding member, respectively.
Claim 16
Dependent Claim
20 words
A method according to claim 11, wherein said lens holder holding member is fixed to the substrate by laser welding.
Claim 17
Dependent Claim
21 words
A method according to claim 12, wherein said lens holder is fixed to the lens holder holding member by laser welding.
References Cited (Backward Citations)
No citation records indexed.
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