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US5015067A
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Optical fiber power output measuring means
Assignee: Photomedex Inc
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Filing: 1989-01-06
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Granted: 1991-05-14
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Expires: 2009-01-06
Abstract
Abstract An apparatus and method for detecting and measuring optical fiber output by measuring backscatter fluorescence from at least a partial coating or layer of fluorescent material at approximately the end of the optical fiber.
Inventors
- 👤 Jeffrey I. Levatter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:04
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/30; G01M11/31; G01J; G01J1/00; G01J1/58
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
An optical fiber assembly adapted for use with a system for measuring the intensity of light transmitted by the assembly, comprising: an optical fiber including a light-transmitting core and a protective cladding, wherein the fiber has a proximal end and a distal end; and a fluorescent material encircling the core of the optical fiber at or near the fiber's distal end, the fluorescent material absorbing a small portion of light transmitted along the fiber to its distal end and generating fluorescent light in response, substantially independent of any material located adjacent to the fiber's distal end, a portion of the fluorescent light being transmitted back along the optical fiber, from the fiber's distal end to the proximal end.
Claim 2
Dependent Claim
118 words
An optical fiber assembly adapted for use with a system for measuring the intensity of light transmitted by the assembly, comprising: an optical fiber including a light-transmitting core and a protective cladding, wherein the fiber has a proximal end and a distal end; and a fluorescent material encircling the core of the optical fiber at or near the fiber's distal end, the fluorescent material absorbing a small portion of light transmitted along the fiber to its distal end and generating fluorescent light in response, substantially independent of any material located adjacent to the fiber's distal end, a portion of the fluorescent light being transmitted back along the optical fiber, from the fiber's distal end to the proximal end.
Claim 3
Dependent Claim
25 words
An optical fiber assembly as defined in claim 1, wherein the fluorescent material completely encircles the core of the optical fiber, forming a cylindrical band.
Claim 4
Dependent Claim
24 words
An optical fiber assembly as defined in claim 1, wherein the fluorescent material is applied by adhesion directly to the core of optical fiber.
Claim 5
Dependent Claim
22 words
An optical fiber assembly as defined in claim 1, wherein the fluorescent material is implanted into the cladding of the optical fiber.
Claim 6
Dependent Claim
34 words
An optical fiber assembly as defined in claim 1, and further including means for detecting the intensity of fluorescent light transmitted along the optical fiber, from the fiber's distal end to its proximal end.
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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) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |