US4812013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for utilizing light radiation with the aid of fluorescent optical fibres and functional devices and apparatus using said process
Assignee: Individual
•
Filing: 1987-12-22
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Granted: 1989-03-14
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Expires: 2007-12-22
Abstract
Abstract The process utilizes the fact that fluorescent optical fibres can be laterally excited by light radiation by supplying concentrated light signals to their ends. The invention proposes applying this process to producing indicating, control, logic function measurement and similar apparatus, as well as for producing solar collectors for the direct generation of electricity.
Inventors
- 👤 Claude Aurouet
- 👤 Henry Blumenfeld
- 👤 Michel Bourdinaud
- 👤 Jean Calvet
- 👤 Jean-Claude Cavan
- 👤 Joao Meyer
- 👤 Jean-Claude Thevenin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:17
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298; F; F24; F24S; F24S23/00; F24S23/12; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/353; G01D5/35338; G01D5/35341; G01D5/35348; G01D5/3537; G01D5/3538; G02B6/0001; G02B6/0003; G02B6/02; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
A process for the utilization of at least one source of light radiation in at least one space traversed by the light radiation comprising: providing at least one fluorescent optical fibre having a transparent core and sheath, and having two ends; placing in the space part of the fluorescent fibre in a position such that the fluorescent fibre can be laterally excited by the light radiation such that a light signal is produced by fluorescence within the fibre and conveyed to the ends; and positioning a functional element at least one end of the fibre for utilization of the light signal corresponding to lateral excitation of the fibre; and wherein the laterally excitable fibre part can be exposed to the flux of a single point source and wherein the end of the fibre ensures a binary function of indicating the operating or non-operating state of said source.
Claim 2
Dependent Claim
147 words
A process for the utilization of at least one source of light radiation in at least one space traversed by the light radiation comprising: providing at least one fluorescent optical fibre having a transparent core and sheath, and having two ends; placing in the space part of the fluorescent fibre in a position such that the fluorescent fibre can be laterally excited by the light radiation such that a light signal is produced by fluorescence within the fibre and conveyed to the ends; and positioning a functional element at least one end of the fibre for utilization of the light signal corresponding to lateral excitation of the fibre; and wherein the laterally excitable fibre part can be exposed to the flux of a single point source and wherein the end of the fibre ensures a binary function of indicating the operating or non-operating state of said source.
Claim 3
Dependent Claim
43 words
An apparatus for performing the process according to claim 1 carrying out the indication of the state of operation or non-operation of at least one radiation source, wherein the means associated with the fibre end is indication means mounted on an instrument panel.
Claim 4
Dependent Claim
23 words
An indicating apparatus according to claim 2, wherein the other end of the fibre is provided with a coating acting as a mirror.
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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) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |