US3589793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber optical devices
Assignee: WILBUR PETERS
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Filing: 1957-05-06
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Granted: 1971-06-29
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Expires: 1977-05-06
Abstract
Abstract A glass fiber for use in transmitting light from end-to-end thereof comprising a clear optical glass fiber core having a predetermined index of refraction and a continuous glass coating adapted to prevent light from escaping from the core into the coating, the coating being fused to the entire outer surface of the core from end-to-end thereof and having an index of refraction which is lower than that of the core. A plurality of these fibers made up in side-by-side ordered relation form a light or an image transmitting device. The glass coating on each core preferably has a higher softening temperature than that of the core. In addition, the fibers are extremely fine in size, such as up to about 0.0002 inch thick.
Inventors
- 👤 Lawrence E Curtiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:07
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; G02B6/06; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/029; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106; C03C25/1061; G02B6/02; C03B2205/00; C03B2205/12; C03B2205/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A flexible optical light-transmitting glass fiber for use in forming a flexible image-transmitting device made up of a plurality of such fibers in side-by-side relation, comprising an elongated optically clear glass fiber core having a predetermined index of refraction and of substantially uniform diameter from end-to-end, said core having a glass coating of substantially uniform thickness fused to its surface from end-to-end thereof, said coating having an index of refraction which is lower than that of said glass core, said coating having a thickness greater than about four times the wavelength of visible light and being adapted to prevent light from escaping from said core into said coating, and said core and coating together having a diameter of about 0.0015 inch.
Claim 2
Dependent Claim
109 words
An optical light-transmitting device, comprising a large number of very thin solid glass fibers, said fibers each having an elongated optically clear light-conducting core formed of glass of a predetermined index of refraction and being of substantially uniform cross section from end-to-end thereof, each of said cores having a glass coating of substantially uniform thickness fused to its entire outer surface, said glass coatings having an index of refraction which is lower than that of said glass cores and being adapted to prevent light from escaping from said cores into said coatings, each of said cores together with its coating having a thickness of up to about 0.002 inch.
Claim 3
Dependent Claim
120 words
An optical light-transmitting device, comprising a large number of very thin solid glass fibers, said fibers each having an elongated optically clear light-conducting core formed of glass of a predetermined index of refraction and being of substantially uniform cross section from end-to-end thereof, each of said cores having a glass coating of substantially uniform thickness fused to its entire outer surface, said glass coatings having a higher softening temperature than that of said glass cores, having an index of refraction which is lower than that of said glass cores and being adapted to prevent light from escaping from said cores into said coatings, each of said cores together with Its coating having a thickness of up to about 0.002 inch.
Claim 4
Dependent Claim
125 words
A flexible optical light-transmitting glass fiber for use in forming a flexible image-transmitting device made up of a plurality of such fibers in side-by-side relation, comprising an elongated optically clear glass fiber core formed of glass of a predetermined index of refraction and being of substantially uniform cross section from end-to-end thereof, said glass core having a glass coating of substantially uniform thickness fused to its entire outer surface, said glass coating having a higher softening temperature than that of said glass core, having an index of refraction which is lower than that of said glass core and being adapted to prevent light from escaping from said core into said coating, said core and coating together having a thickness of up to about 0.002 inch.
Claim 5
Dependent Claim
113 words
A flexible optical light-transmitting glass fiber for use in forming a flexible image-transmitting device made up of a plurality of such fibers in side-by-side relation, comprising an elongated optically clear glass fiber core formed of glass of a predetermined index of refraction and being of substantially uniform cross section from end-to-end thereof, said glass core having a relatively thin glass coating of substantially uniform thickness fused to its entire outer surface, said glass coating having an index of refraction which is lower than that of said glass core and being adapted to prevent light from escaping from said core into said coating, said core having a thickness of up to about 0.002 inch.
Claim 6
Dependent Claim
106 words
An optical light-transmitting device, comprising a large number of very thin solid glass fibers, said fibers each having an elongated optically clear light-conducting core formed of glass of a predetermined index of refraction and being of substantially uniform cross section from end-to-end thereof, each of said cores having a relatively thin glass coating of substantially uniform thickness fused to its entire outer surface, said glass coatings having an index of refraction which is lower than that of said cores and being adapted to prevent light from escaping from said cores into said coatings, each of said cores having a thickness of up to about 0.002 inch.
Claim 7
Dependent Claim
104 words
An optical light-transmitting glass fiber for use in forming a light-transmitting device made up of a plurality of such fibers in side-by-side relation, comprising an elongated optically clear glass fiber core formed of glass of a predetermined index of refraction and being of substantially uniform cross-sectional shape from end-to-end thereof, said glass core having a glass coating fused uniformly to its entire outer surface and having an index of refraction which is lower than that of said glass core and being adapted to prevent light from escaping from said core into said coating, said core having a thickness of up to about 0.002 inch.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |