US4946242A
Expired / Lapsed
US
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Optical part including integral combination of optical fiber and light emitting or receiving element and method of manufacturing the same
Assignee: Hitachi Cable Ltd
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Filing: 1988-08-22
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Granted: 1990-08-07
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Expires: 2008-08-22
Abstract
Abstract An optical part for light transmission comprises a light conductor formed of a core of a transparent material and a clad of a material having a smaller refractive index than that of the core material, and a light emitting and/or receiving element, wherein the light emitting and/or receiving element is integrally combined with the core of the light conductor by a same material as the core material or by a material having a same refractive index as that of the core material and having a greater rigidity than that of the material forming the clad and/or jacket. The optical part can be used in a high temperature environment as well as a room temperature environment without involving any appreciable loss in light transmission.
Inventors
- 👤 Seikichi Tanno
- 👤 Noriaki Taketani
- 👤 Shuji Eguchi
- 👤 Hideki Asano
- 👤 Yukio Shimazaki
- 👤 Yuuetsu Takuma
- 👤 Masahiko Ibamoto
- 👤 Junji Mukai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:02
CPC Classifications
H; H04; H04B; H04B10/00; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4202; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/292; G01F23/2921; G01F23/2922; G01F23/2925; G01F23/2927; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/486; G02B6/4204; G02B6/4212; G02B6/4298
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
116 words
An optical part for light transmission, comprising a light conductor composed of a core formed of a transparent macromolecular material and a clad or a combined clad and jacket formed of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad or said combined clad and jacket and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same refractive index as that of the core material.
Claim 2
Dependent Claim
116 words
An optical part for light transmission, comprising a light conductor composed of a core formed of a transparent macromolecular material and a clad or a combined clad and jacket formed of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad or said combined clad and jacket and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same refractive index as that of the core material.
Claim 3
Dependent Claim
38 words
An optical part for light transmission according to claim 1, wherein said macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof is a transparent bridge-making (cross-linking) type resin.
Claim 4
Dependent Claim
24 words
An optical part for light transmission according to claim wherein the core material of said light conductor is a transparent bridge-making (cross-linking) type resin.
Claim 5
Dependent Claim
57 words
An optical part for light transmission according to claim 3, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR4## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 6
Dependent Claim
100 words
An optical part for light transmission according to claim 3, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR5## where R 1 and R 2 represents H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR6## where R 2 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR7##
Claim 7
Dependent Claim
100 words
An optical part for light transmission according to claim 2, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR8## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR9## wherein R 3 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR10##
Claim 8
Dependent Claim
57 words
An optical part for light transmission according to claim 2, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR11## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 9
Dependent Claim
25 words
An optical part for light transmission according to claim 1, wherein the core material of said light conductor is a transparent bridge-making (cross-linking) type resin.
Claim 10
Dependent Claim
57 words
An optical part for light transmission according to claim 8, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR12## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 11
Dependent Claim
100 words
An optical part for light transmission according to claim 8, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR13## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR14## where R 3 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR15##
Claim 12
Dependent Claim
57 words
An optical part for light transmission according to claim 1, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR16## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 13
Dependent Claim
115 words
An optical part for light transmission, comprising a light conductor composed of a core formed of a transparent macromolecular material and a clad or a combined clad and jacket formed of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad or said combined clad and jacket and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same composition as that of the core material.
Claim 14
Dependent Claim
115 words
An optical part for light transmission, comprising a light conductor composed of a core formed of a transparent macromolecular material and a clad or a combined clad and jacket formed of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad or said combined clad and jacket and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same composition as that of the core material.
Claim 15
Dependent Claim
38 words
An optical part for light transmission according to claim 12, wherein said macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof is a transparent bridge-making (cross-linking) type resin.
Claim 16
Dependent Claim
25 words
An optical part for light transmission according to claim 13, wherein the core material of said light conductor is a transparent bridge-making (cross-linking) type resin.
Claim 17
Dependent Claim
100 words
An optical part for light transmission according to claim 14, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR17## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR18## where R 3 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR19##
Claim 18
Dependent Claim
57 words
An optical part for light transmission according to claim 13, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR20## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 19
Dependent Claim
100 words
An optical part for light transmission according to claim 13, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR21## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR22## where R 3 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR23##
Claim 20
Dependent Claim
25 words
An optical part for light transmission according to claim 12, wherein the core material of said light conductor is a transparent bridge-making (cross-linking) type resin.
Claim 21
Dependent Claim
57 words
An optical part for light transmission according to claim 18, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR24## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 22
Dependent Claim
100 words
An optical part for light transmission according to claim 18, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR25## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23, and a monomer given by the following general formula (II): ##STR26## where R 3 represents H or CH 3 and R 4 represents H or a radical selected from a group of alkyls having carbons in a number of 1 to 18, ##STR27##
Claim 23
Dependent Claim
57 words
An optical part for light transmission according to claim 12, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR28## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 24
Dependent Claim
125 words
An optical part for light transmission, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket formed of a material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor, wherein a plurality of said light conductors are included and combined together at one end portions thereof, said core has a higher rigidity than that of said clad or said clad and jacket combination, and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said plurality of light conductors at said one end portions has a substantially same refractive index as that of said core material.
Claim 25
Dependent Claim
125 words
An optical part for light transmission, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket formed of a material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor, wherein a plurality of said light conductors are included and combined together at one end portions thereof, said core has a higher rigidity than that of said clad or said clad and jacket combination, and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said plurality of light conductors at said one end portions has a substantially same refractive index as that of said core material.
Claim 26
Dependent Claim
24 words
An optical part for light transmission according to claim 22, wherein the core material of said light conductor is a transparent bridge-making (cross-linking) resin.
Claim 27
Dependent Claim
124 words
An optical part for light transmission, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket formed of a material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor, wherein a plurality of said light conductors are included and combined together at one end portions thereof, said core has a higher rigidity than that of said clad or said clad and jacket combination, and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said plurality of light conductors at said one end portions has a substantially same composition as that of said core material.
Claim 28
Dependent Claim
124 words
An optical part for light transmission, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket formed of a material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor, wherein a plurality of said light conductors are included and combined together at one end portions thereof, said core has a higher rigidity than that of said clad or said clad and jacket combination, and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said plurality of light conductors at said one end portions has a substantially same composition as that of said core material.
Claim 29
Dependent Claim
24 words
An optical part for light transmission according to claim 24, wherein the core material of said light conductor is a transparent bridge-making (cross-linking) resin.
Claim 30
Independent Claim
120 words
A method of manufacturing an optical part, comprising steps of: preparing a light conductor composed of a core formed of a transparent macromolecular material and a clad formed of a transparent macromolecular material having a lower refractive index than that of said core material, said core material having a higher rigidity than that of said clad material; removing the core material from an end portion of said light conductor; placing a light emitting and/or receiving element in the end portion of said light conductor from which the core material has been removed; and combining said light emitting and/or receiving element integrally with said light conductor by a material having a substantially same refractive index as that of said core material.
Claim 31
Independent Claim
120 words
A method of manufacturing an optical part, comprising steps of: preparing a light conductor composed of a core formed of a transparent macromolecular material and a clad formed of a transparent macromolecular material having a lower refractive index than that of said core material, said core material having a higher rigidity than that of said clad material; removing the core material from an end portion of said light conductor; placing a light emitting and/or receiving element in the end portion of said light conductor from which the core material has been removed; and combining said light emitting and/or receiving element integrally with said light conductor by a material having a substantially same refractive index as that of said core material.
Claim 32
Dependent Claim
53 words
A method according to claim 26, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR29## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 33
Independent Claim
156 words
A method of manufacturing an optical part, comprising steps of: forming a coupling member of a transparent macromolecular material having a substantially same refractive index as that of a clad of a light conductor and provided with a bore for inserting said light conductor therein and a bore for mounting therein a light emitting element and/or a light-receiving element; inserting in said light conductor inserting bore a light conductor composed of a clad formed of macromolecular material having a lower refractive index than that of a core material forming a part of said light conductor, said core material having a higher rigidity than that of said clad material; inserting said light emitting element and/or said light receiving element into the associated mounting bore; and combining said light emitting element and/or light receiving element integrally with said light conductor by molding with a macromolecular material having a substantially same refractive index as that of said core material.
Claim 34
Independent Claim
156 words
A method of manufacturing an optical part, comprising steps of: forming a coupling member of a transparent macromolecular material having a substantially same refractive index as that of a clad of a light conductor and provided with a bore for inserting said light conductor therein and a bore for mounting therein a light emitting element and/or a light-receiving element; inserting in said light conductor inserting bore a light conductor composed of a clad formed of macromolecular material having a lower refractive index than that of a core material forming a part of said light conductor, said core material having a higher rigidity than that of said clad material; inserting said light emitting element and/or said light receiving element into the associated mounting bore; and combining said light emitting element and/or light receiving element integrally with said light conductor by molding with a macromolecular material having a substantially same refractive index as that of said core material.
Claim 35
Dependent Claim
53 words
A method according to claim 28, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR30## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 36
Independent Claim
126 words
A method of manufacturing an optical part, comprising the steps of: inserting into a molding die provided with more than one light conductor inserting portions and a mounting portion for a light emitting and/or receiving element, light conductors each including a clad formed of a macromolecular material having a smaller refractive index than that of a core material which has a higher rigidity than that of said clad material; placing said light emitting and/or receiving element in said molding die; molding said light emitting and/or receiving element with a macromolecular material having a substantially same refractive index as that of said core material; and coating the exposed portion of said core with a material having a substantially same refractive index as that of said clad material.
Claim 37
Independent Claim
126 words
A method of manufacturing an optical part, comprising the steps of: inserting into a molding die provided with more than one light conductor inserting portions and a mounting portion for a light emitting and/or receiving element, light conductors each including a clad formed of a macromolecular material having a smaller refractive index than that of a core material which has a higher rigidity than that of said clad material; placing said light emitting and/or receiving element in said molding die; molding said light emitting and/or receiving element with a macromolecular material having a substantially same refractive index as that of said core material; and coating the exposed portion of said core with a material having a substantially same refractive index as that of said clad material.
Claim 38
Dependent Claim
53 words
A method according to claim 30, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR31## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
Claim 39
Dependent Claim
106 words
A light sensing device, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same refractive index as that of said core material.
Claim 40
Dependent Claim
106 words
A light sensing device, comprising a light conductor formed of a core of a transparent macromolecular material and a clad or a combined clad and jacket of a macromolecular material having a smaller refractive index than that of said core material, and a light emitting and/or receiving element incorporated in said light conductor at least at one end portion thereof, wherein said core has a higher rigidity than that of said clad and wherein a macromolecular material combining said light emitting and/or receiving element integrally with said light conductor at the end portion thereof has a substantially same refractive index as that of said core material.
Claim 41
Dependent Claim
32 words
The light-sensing device according to claim 32, in combination with a casing and/or outlet conduit of a washing machine for detecting, respectively, the amount of water and/or contamination of the water therein.
Claim 42
Dependent Claim
33 words
The light-sensing device according to claim 32, in combination with a suction port of a vacuum cleaner for detecting the amount of dust in the air sucked via said port of said cleaner.
Claim 43
Dependent Claim
27 words
The light-sensing device according to claim 32, in combination with an auxiliary oil-containing pipe of an oil tank for detecting the amount of oil and/or contamination therein.
Claim 44
Dependent Claim
42 words
A rotational speed sensor including as detecting means the light-sensing device set forth in claim 32, and a rotating disk mounted on a shaft having slits through which light from the device is passed to determine the rotational speed of said shaft.
Claim 45
Dependent Claim
55 words
A light sensing device according to claim 32, wherein said core material is a macromolecular material formed through polymerization of monomer compositions including monomers given by the following general formula (I): ##STR32## where R 1 and R 2 represent H or CH 3 and n represents an integer in a range of 1 to 23.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |