US4279089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical illumination device
Assignee: Individual
•
Filing: 1979-09-06
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Granted: 1981-07-21
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Expires: 1999-09-06
Abstract
Abstract This invention relates to an optical illumination device using optical fiber members. Basically, one of the respective ends of optical fiber members is opposed to a light source, with a filter disposed between the one end and the light source, the filter being movable across the path of incident light from the source to cause the other ends of the optical fiber members to illuminate with varying colors. In such basic arrangement, the optical illumination device of the invention is characterized in that the illuminating end side of a number of optical fiber members is disposed along the lateral surface of a significant-form representing member which represents a letter, figure or the like, so that the illuminating end surfaces of the optical fibers are positioned at the end edge of the significant-form member.
Inventors
- 👤 Tatsuo Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:30
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G09; G09F; G09F9/00; G09F9/30; G09F9/305; Y; Y10; Y10S; Y10S362/00; Y10S362/806; Y10S385/00; Y10S385/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
An optical illumination device having a plurality of optical fibers comprising adjacent fibers abutting each other in a linear arrangement and each having a light receiving end and an illuminating end; an integral band member having a shape that varies in direction along its length to form a predetermined indicia forming configuration; said band having an outer edge located at said illuminating ends of said fibers so that said band extends coterminous with said fibers for a substantial distance; said band having an outer surface to which said abutting fibers are fastened, which surface is in a plane perpendicular to the plane of said illuminated ends of said fibers, whereby said fiber arrangement forms the same predetermined configuration as said band member; a flat surface, indicia forming member is provided having outer edges formed in the same shape as said predetermined configuration, said flat surface member connected to said outer edge of said band member at an angle perpendicular thereto whereby said fibers are arranged along the periphery of said flat surface member thereby providing an illuminated outline of said member when said fibers are illuminated.
Claim 2
Dependent Claim
186 words
An optical illumination device having a plurality of optical fibers comprising adjacent fibers abutting each other in a linear arrangement and each having a light receiving end and an illuminating end; an integral band member having a shape that varies in direction along its length to form a predetermined indicia forming configuration; said band having an outer edge located at said illuminating ends of said fibers so that said band extends coterminous with said fibers for a substantial distance; said band having an outer surface to which said abutting fibers are fastened, which surface is in a plane perpendicular to the plane of said illuminated ends of said fibers, whereby said fiber arrangement forms the same predetermined configuration as said band member; a flat surface, indicia forming member is provided having outer edges formed in the same shape as said predetermined configuration, said flat surface member connected to said outer edge of said band member at an angle perpendicular thereto whereby said fibers are arranged along the periphery of said flat surface member thereby providing an illuminated outline of said member when said fibers are illuminated.
Claim 3
Dependent Claim
23 words
An optical illumination device according to claim 1 wherein said band is formed of flexible material to be bent into said predetermined configuration.
Claim 4
Dependent Claim
17 words
An optical illumination device according to claim 1 wherein said band member is formed of curable plastic.
References Cited (Backward Citations)
US2639528A
Cited
US3104324A
Cited
US3050888A
Cited
US3164918A
Cited
US3184872A
Cited
US3512861A
Cited
US3431410A
Cited
US3536908A
Cited
US3803398A
Cited
US3766376A
Cited
US3933556A
Cited
US4121206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |