US4088508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifying device of radiant energy
Assignee: Individual
•
Filing: 1977-03-30
•
Granted: 1978-05-09
•
Expires: 1997-03-30
Abstract
Abstract A radiant energy amplifying device receiving energies from short wavelengths by a plurality of scintillating materials having high quantum yields operating in cascade which are distributed homogeneously in a matrix made of synthetic resinous material whose absorption threshold is at a wavelength less than the absorption zone of the scintillating material located at the beginning of the cascade, wherein the scintillating materials are present in the matrix in a proportion varying according to the material from 2× 10 -3 to 10 -7 mole/kg of resin, the highest concentration corresponding to the material being located at the beginning of the cascade.
Inventors
- 👤 Phillippe E. Gravisse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:35
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; A; A01; A01G; A01G9/00; A01G9/14; A01G9/1438; H; H10; H10F; H10F77/00; H10F77/40; H10F77/42; H10F77/45; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y02E; Y02E10/00; Y02E10/50; Y02E10/52; Y02P; Y02P60/00; Y02P60/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A radiant energy amplifying device, particularly suitable for a photovoltaic cell or other pickup, which cumulatively receives energies coming from short wavelengths by a plurality of scintillating materials with high quantum yield operating in cascade wherein the absorption spectrum of one of the scintillating materials overlaps the emission spectrum of the other scintillating material, except for the material that is at the beginning of the cascade, absorbing toward the shortest wavelengths, characterized in that said scintillating materials, which are distributed homogeneously in a matrix made of solid synthetic polymeric material whose absorption threshold is at a wavelength less than the absorption zone of the scintillating material located at the beginning of the cascade, are present in said matrix in a proportion varying, according to the material, from 2 × 10 -3 to 10 -7 mole/kg of resin, the highest concentration corresponding to said material located at the beginning of the cascade.
Claim 2
Dependent Claim
151 words
A radiant energy amplifying device, particularly suitable for a photovoltaic cell or other pickup, which cumulatively receives energies coming from short wavelengths by a plurality of scintillating materials with high quantum yield operating in cascade wherein the absorption spectrum of one of the scintillating materials overlaps the emission spectrum of the other scintillating material, except for the material that is at the beginning of the cascade, absorbing toward the shortest wavelengths, characterized in that said scintillating materials, which are distributed homogeneously in a matrix made of solid synthetic polymeric material whose absorption threshold is at a wavelength less than the absorption zone of the scintillating material located at the beginning of the cascade, are present in said matrix in a proportion varying, according to the material, from 2 × 10 -3 to 10 -7 mole/kg of resin, the highest concentration corresponding to said material located at the beginning of the cascade.
Claim 3
Dependent Claim
46 words
Amplifying device according to claim 1, in combination with a photovoltaic cell underlying said device, characterized in that the emission spectrum of the scintillating material placed at the end of the cascade, toward the longest wavelengths, corresponds to the maximal sensitivity zone of the photovoltaic cell.
Claim 4
Dependent Claim
26 words
Amplifying device according to claim 1 characterized in that at least one of said scintillating materials is selected from the group: benzene, naphthalene, anthracene, naphthacene, pentacene.
Claim 5
Dependent Claim
38 words
Amplifying device according to claim 1 characterized in that at least one of said scintillating materials is selected from the group: α-naphthol, diphenyloxazole, uranine, fluorescein, rhodamine B, p phenylene bis 2,2'-(phenyl 5 oxazole), dimethyl-p-phenylene bis 2,2'-(phenyl 5 oxazole).
Claim 6
Dependent Claim
15 words
Amplifying device according to claim 1 characterized in that said matrix is made of silicone.
Claim 7
Dependent Claim
18 words
Amplifying device according to claim 1 characterized in that said matrix is made of untreated anti UV polymethylmethacrylate.
Claim 8
Dependent Claim
17 words
Amplifying device according to claim 1 characterized in that said matrix has a thickness of 3 mm.
Claim 9
Dependent Claim
44 words
Amplifying device according to claim 1 characterized in that the matrix, 3 mm thick, of untreated anti UV polymethylmethacrylate comprises a homogeneous dispersion comprising: 2 × 10 -4 mole/kg of resin, of uranine; and 2 × 10 -5 mole/kg of resin, of rhodamine B.
Claim 10
Dependent Claim
22 words
Amplifying device according to claim 8 characterized in that said matrix further comprises 2 × 10 -3 mole/kg of resin, of diphenyloxazole.
Claim 11
Dependent Claim
20 words
Amplifying device according to claim 1 characterized in that it is overlying an Si type, non anti-reflection, treated photovoltaic cell.
References Cited (Backward Citations)
US3309226A
Cited
US3426212A
Cited
US3591420A
Cited
US3912931A
Cited
FR2246078B1
Cited
US3929510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |