US4753512A
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: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1985-12-09
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Granted: 1988-06-28
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Expires: 2005-12-09
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
2026-10-31 22:26
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
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
A process for the utilization of at least two sources of light radiation to optically implement a logic OR function, comprising: providing a fluorescent optical fibre having a transparent core and sheath and having two ends; placing part of the fluorescent fibre in a position such that the fluorescent fibre can be laterally excited by light radiation from either of the two sources such that a light signal is produced by fluorescence within the fibre and conveyed to the ends; and positioning a fuctional element at at least one end of the fibre for utilization of the light signal corresponding to lateral excitation of the fibre; whereby an optical logic OR function is implemented alternatively indicating the non-operating state of all of the sources and the operation of at least one of the sources.
Claim 2
Dependent Claim
134 words
A process for the utilization of at least two sources of light radiation to optically implement a logic OR function, comprising: providing a fluorescent optical fibre having a transparent core and sheath and having two ends; placing part of the fluorescent fibre in a position such that the fluorescent fibre can be laterally excited by light radiation from either of the two sources such that a light signal is produced by fluorescence within the fibre and conveyed to the ends; and positioning a fuctional element at at least one end of the fibre for utilization of the light signal corresponding to lateral excitation of the fibre; whereby an optical logic OR function is implemented alternatively indicating the non-operating state of all of the sources and the operation of at least one of the sources.
Claim 3
Independent Claim
121 words
A system of plural identical devices optically connected in parallel for the utilization of at least one source of light radiation, each of said devices comprising: a fluorescent optical fibre having a transparent core and sheath, and having two ends; a part of said fluorescent fibre being supported in a position that said fluorescent fibre can be laterally excited by light radiation from the source such that a light signal is produced by fluorescence within said fibre and conveyed to said ends; and a functional element positioned at at least one of said fibre ends for utilization of the light signal corresponding to lateral excitation of said fibre, whereby at least two of said plural devices are optically connected in parallel.
Claim 4
Independent Claim
121 words
A system of plural identical devices optically connected in parallel for the utilization of at least one source of light radiation, each of said devices comprising: a fluorescent optical fibre having a transparent core and sheath, and having two ends; a part of said fluorescent fibre being supported in a position that said fluorescent fibre can be laterally excited by light radiation from the source such that a light signal is produced by fluorescence within said fibre and conveyed to said ends; and a functional element positioned at at least one of said fibre ends for utilization of the light signal corresponding to lateral excitation of said fibre, whereby at least two of said plural devices are optically connected in parallel.
Claim 5
Dependent Claim
111 words
An optical logic OR device for the utilization of at least two sources of light radiation, comprising: a fluorescent optical fibre having a transparent core and sheath, and having two ends; a part of said fluorescent fibre being supported in a position such that said fluorescent fibre can be laterally excited by light radiation from either of the two sources such that a light signal is produced by fluorescence within said fibre and conveyed to said ends; and a functional element positioned at at least one of said fibre ends for utilization of the light signal corresponding to lateral excitation of said fibre; whereby an optical logic OR function is implemented.
Claim 6
Dependent Claim
111 words
An optical logic OR device for the utilization of at least two sources of light radiation, comprising: a fluorescent optical fibre having a transparent core and sheath, and having two ends; a part of said fluorescent fibre being supported in a position such that said fluorescent fibre can be laterally excited by light radiation from either of the two sources such that a light signal is produced by fluorescence within said fibre and conveyed to said ends; and a functional element positioned at at least one of said fibre ends for utilization of the light signal corresponding to lateral excitation of said fibre; whereby an optical logic OR function is implemented.
Claim 7
Dependent Claim
28 words
A system having a plurality of identical devices in accordance with claim 3 wherein at least two of said plurality of identical devices are optically connected in parallel.
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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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |