Patent EP0249934A2 successfully refreshed from Google Patents.
EP0249934A2
Expired / Lapsed
EP
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Optical fiber device
Assignee: Mitsubishi Chemical Corp
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Filing: 1987-06-16
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Granted: —
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Expires: 2007-06-16
Abstract
Abstract An optical fiber device (31) comprises a core (35) and a cladding (33), the core (35) being made of an optical material having a refractive index n1, and the cladding being made of an optical material having a refractive index n2, end (34) of the optical fiber from which light radiates forming a plane that is inclined to the fiber axis by an angle theta , a light reflective layer being formed at least on the outer periphery of said radiating end, and the two refractive indices n1 and n2 satisfying the following relation (1): n1-n2>/= 0.01 (1).
Inventors
- 👤 Naohiro Mitsubishi Rayon Co. Ltd. Yamamoto
- 👤 Shuichiro Mitsubishi Rayon Co. Ltd. Tokuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 05:18
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/262; G02B6/02; G02B6/04; G02B6/06; G02B6/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A light-transmitting optical fiber device (11, 21, 31) comprising a core being made of an optical material having a refractive index n l and a cladding (15, 23, 33) being made of an optical material having a refractive index n 2 , wherein an end (14, 24, 34) of said optical fiber from which light radiates forming a plane that is inclined relative to a fiber axis at an angle 6, a light reflective layer (12, 22, 32) being formed at least on the outer periphery of said radiating end (14, 24, 34), the other end of said optical fiber forming a plane that is perpendicular relative to said fiber axis, and said two refractive indices n 1 and n 2 satisfying the following relation (1):
Claim 2
Dependent Claim
126 words
A light-transmitting optical fiber device (11, 21, 31) comprising a core being made of an optical material having a refractive index n l and a cladding (15, 23, 33) being made of an optical material having a refractive index n 2 , wherein an end (14, 24, 34) of said optical fiber from which light radiates forming a plane that is inclined relative to a fiber axis at an angle 6, a light reflective layer (12, 22, 32) being formed at least on the outer periphery of said radiating end (14, 24, 34), the other end of said optical fiber forming a plane that is perpendicular relative to said fiber axis, and said two refractive indices n 1 and n 2 satisfying the following relation (1):
Claim 3
Dependent Claim
21 words
An optical fiber device according to claim 1, wherein said light-reflective layer (12, 22, 32) is formed of a metal coating.
Claim 4
Dependent Claim
25 words
An optical fiber device according to claim 1 or 2, wherein said angle θ is no more than 70° with respect to said fiber axis.
Claim 5
Dependent Claim
20 words
An optical fiber device according to claim 3, wherein said angle θ is within the range of 5 - 60°.
Claim 6
Dependent Claim
20 words
An optical fiber device according to claim 1, 2 or 4, wherein said optical fiber is made of a plastic.
References Cited (Backward Citations)
No citation records indexed.
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