US5153426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation meter for radiation emerging from an optical fiber with a diffusely reflecting body and cavity
Assignee: Airbus Defence and Space GmbH
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Filing: 1991-08-16
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Granted: 1992-10-06
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Expires: 2011-08-16
Abstract
Abstract A radiation meter for radiation emerging from an optical fiber, comprising a hollow body having diffusely reflecting interior walls into which the end of the optical fiber can be introduced, and at least one detector arranged behind an opening of the hollow body. Between the end of the optical fiber and the opening for the detector, a diffusely reflecting body is arranged which, together with the interior wall of the hollow body, in the area of the opening for the detector, forms a gap with an adjustable gap thickness.
Inventors
- 👤 Michael Konrad
- 👤 Mandred Eichenlaub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:11
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; G01J1/0425; G01J1/0448; G01J1/42; G01J1/4228; G01J1/4257; G01J2001/0481
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
Apparatus for measuring radiation emerging from an optical fiber, comprising: a hollow body having an interior cavity with diffusely reflecting interior walls, said hollow body having an aperture into which an end of an optical fiber can be introduced into said cavity, and an opening from which reflected radiation can escape from said cavity; at least one detector positioned to receive and detect radiation from said opening; and a diffusely reflecting body arranged within said cavity between said aperture and said opening, said body being positioned so as to define an adjustable gap between said body and said interior walls.
Claim 2
Dependent Claim
100 words
Apparatus for measuring radiation emerging from an optical fiber, comprising: a hollow body having an interior cavity with diffusely reflecting interior walls, said hollow body having an aperture into which an end of an optical fiber can be introduced into said cavity, and an opening from which reflected radiation can escape from said cavity; at least one detector positioned to receive and detect radiation from said opening; and a diffusely reflecting body arranged within said cavity between said aperture and said opening, said body being positioned so as to define an adjustable gap between said body and said interior walls.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1, wherein the diffusely reflecting body has a concave surface on a side facing the optical fiber.
Claim 4
Dependent Claim
29 words
Apparatus according to claim 1, wherein the diffusely reflecting body is arranged symmetrically with respect to the opening for the detector and forms a rotationally symmetrical gap around it.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 2, wherein the diffusely reflecting body is arranged symmetrically with respect to the opening for the detector and forms a rotationally symmetrical gap around it.
Claim 6
Dependent Claim
48 words
Apparatus according to claim 1, wherein the hollow body is rotationally symmetrical about an axis of symmetry, which passes through a center of said aperture and a center of said opening, and wherein said diffusely reflecting body is also arranged symmetrically with respect to said axis of symmetry.
Claim 7
Dependent Claim
48 words
Apparatus according to claim 2, wherein the hollow body is rotationally symmetrical about an axis of symmetry, which passes through a center of said aperture and a center of said opening, and wherein said diffusely reflecting body is also arranged symmetrically with respect to said axis of symmetry.
Claim 8
Dependent Claim
48 words
Apparatus according to claim 3, wherein the hollow body is rotationally symmetrical about an axis of symmetry, which passes through a center of said aperture and a center of said opening, and wherein said diffusely reflecting body is also arranged symmetrically with respect to said axis of symmetry.
Claim 9
Dependent Claim
48 words
Apparatus according to claim 4, wherein the hollow body is rotationally symmetrical about an axis of symmetry, which passes through a center of said aperture and a center of said opening, and wherein said diffusely reflecting body is also arranged symmetrically with respect to said axis of symmetry.
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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) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |