US5835649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light directing and collecting fiber optic probe
Assignee: University of British Columbia
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Filing: 1997-06-02
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Granted: 1998-11-10
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Expires: 2017-06-02
Abstract
Abstract A fiber-optic probe is formed by a pair of optical fibers one of which delivers light to a target zone and the other collects light from a field of view in the target zone. One of these fibers is provided with a window that opens substantially perpendicular to the longitudinal axis of the fiber and with a transverse surface oriented at an angle to the longitudinal axis of the fiber to reflect light through the window or from the window longitudinally of the axis of this fiber. Two fibers are physically interconnected to position the window on one side of and immediately adjacent to the target zone and the axial end of other fiber to deliver or receive light from another side of the target zone preferably substantially perpendicular to the one side.
Inventors
- 👤 Robin Fredrick Bruce Turner
- 👤 Michael Walter Blades
- 👤 Lloyd Shane Greek
- 👤 Hans Georg Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:18
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507; G01N21/62; G01N21/63; G01N21/64; G01N21/645; G02; G02B; G02B6/00; G02B6/24; G02B6/241; G01N2021/6484; G01N21/65; G01N2201/00; G01N2201/08; G01N2201/0846
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
217 words
A fiber-optic probe comprising a first optical fiber for delivering light directly into a target zone, a second optical fiber for collecting light from said target zone, a window in one of said first and second optical fibers, said window facing in a direction substantially perpendicular to a longitudinal axis of said one of said first and second optical fibers, said window being positioned adjacent to one axial end of said one fiber and defining a first side of said target zone, a reflecting surface at said one axial end of said one fiber and extending across said one fiber at an acute angle to a longitudinal axis of said one fiber to reflect light passing through said one fiber to pass through or be received from said window directly into or from said target zone and said first and second fibers are interconnected in fixed relationship with said first and second fibers in intimate side by side relationship with said window defining said first side of said target zone and an axial end of the other of said first and second optical fibers defining a second side of said target zone extending from said first side so that said light passes directly to or from said target zone through said axial end of said other fiber.
Claim 2
Dependent Claim
217 words
A fiber-optic probe comprising a first optical fiber for delivering light directly into a target zone, a second optical fiber for collecting light from said target zone, a window in one of said first and second optical fibers, said window facing in a direction substantially perpendicular to a longitudinal axis of said one of said first and second optical fibers, said window being positioned adjacent to one axial end of said one fiber and defining a first side of said target zone, a reflecting surface at said one axial end of said one fiber and extending across said one fiber at an acute angle to a longitudinal axis of said one fiber to reflect light passing through said one fiber to pass through or be received from said window directly into or from said target zone and said first and second fibers are interconnected in fixed relationship with said first and second fibers in intimate side by side relationship with said window defining said first side of said target zone and an axial end of the other of said first and second optical fibers defining a second side of said target zone extending from said first side so that said light passes directly to or from said target zone through said axial end of said other fiber.
Claim 3
Dependent Claim
32 words
A fiber-optic probe as defined in claim 1 wherein said window and said axial end are substantially perpendicular so that said first and second sides of said target zone are substantially perpendicular.
Claim 4
Dependent Claim
17 words
A fiber-optic probe as defined in claim 2 wherein said window is formed in said second fiber.
Claim 5
Dependent Claim
37 words
A fiber-optic probe as defined in claim 3 wherein, said first and said second fibers have their longitudinal axes substantially parallel in that portion of said first and second optical fibers immediately adjacent to said target zone.
Claim 6
Dependent Claim
14 words
A fiber-optic probe as defined in claim 4 wherein said acute angle is 45°.
Claim 7
Dependent Claim
31 words
A fiber-optic probe as defined in claim 3 wherein said reflecting surface on said second fiber is curved to deflect more light substantially along said longitudinal axis of said second fiber.
Claim 8
Dependent Claim
58 words
A fiber-optic probe as defined in claim 2 wherein said window has a field of view determined by the size, shape and position of said reflecting surface and corresponds with an area of said target zone to or from which said light passing longitudinally of said one fiber of said first and second fibers is directed or received.
Claim 9
Dependent Claim
62 words
A fiber-optic probe as defined in claim 7 wherein said other fiber is said first fiber and said first and second fibers are interconnected so that said axial end of said first fiber does not extend into said field of view farther than one half the length of said field of view measured parallel to said longitudinal axis of said first fiber.
Claim 10
Dependent Claim
31 words
A fiber-optic probe as defined in claim 8 wherein said reflecting surface on said second fiber is shaped to deflect more light substantially along said longitudinal axis of said second fiber.
Claim 11
Dependent Claim
24 words
A fiber-optic probe as defined in claim 2 wherein said second optical fiber has a cross-sectional area greater than that of said first fiber.
Claim 12
Dependent Claim
27 words
A fiber-optic probe as defined in claim 2 wherein a pair of said second fibers are arranged to be diametrically opposed relative to said first optical fiber.
Claim 13
Dependent Claim
37 words
A fiber-optic probe as defined in claim 11 wherein an anti-reflection coating, suitable for wavelength(s) being used, to reduce losses of light caused by scattering from fiber surfaces is applied to said window and said axial end.
Claim 14
Dependent Claim
88 words
A fiber-optic probe as defined in claim 11 wherein a filter optical coating suitable for the wavelength(s) being used to permit the selective transmission of light of desired wavelength(s) by into said target zone and reduce transmission of light of undesired wavelengths into the target volume and with filter coating, suitable for the wavelength(s) being used, to permit the transmission of light of desired wavelength(s) from the target volume into said second optical fiber and to reduce collection of light of undesired wavelengths from the said target volume.
Claim 15
Dependent Claim
37 words
A fiber-optic probe as defined in claim 2 wherein an anti-reflection coating, suitable for wavelength(s) being used, to reduce losses of light caused by scattering from fiber surfaces is applied to said window and said axial end.
Claim 16
Dependent Claim
88 words
A fiber-optic probe as defined in claim 2 wherein a filter optical coating suitable for the wavelength(s) being used to permit the selective transmission of light of desired wavelength(s) by into said target zone and reduce transmission of light of undesired wavelengths into the target volume and with filter coating, suitable for the wavelength(s) being used, to permit the transmission of light of desired wavelength(s) from the target volume into said second optical fiber and to reduce collection of light of undesired wavelengths from the said target volume.
Claim 17
Dependent Claim
17 words
A fiber-optic probe as defined in claim 1 wherein said window is formed in said second fiber.
Claim 18
Dependent Claim
37 words
A fiber-optic probe as defined in claim 16 wherein, said first and said second fibers have their longitudinal axes substantially parallel in that portion of said first and second optical fibers immediately adjacent to said target zone.
Claim 19
Dependent Claim
14 words
A fiber-optic probe as defined in claim 17 wherein said acute angle is 45°.
Claim 20
Dependent Claim
31 words
A fiber-optic probe as defined in claim 16 wherein said reflecting surface on said second fiber is curved to deflect more light substantially along said longitudinal axis of said second fiber.
Claim 21
Dependent Claim
61 words
A fiber-optic probe as defined in claim 1 wherein said window has a field of view determined by the size, shape and position of said reflecting surface on said window and corresponds with an area of said target zone to or from which said light passing longitudinally of said one fiber of said first and second fibers is directed or received.
Claim 22
Dependent Claim
62 words
A fiber-optic probe as defined in claim 20 wherein said other fiber is said first fiber and said first and second fibers are interconnected so that said axial end of said first fiber does not extend into said field of view farther than one half the length of said field of view measured parallel to said longitudinal axis of said first fiber.
Claim 23
Dependent Claim
31 words
A fiber-optic probe as defined in claim 21 wherein said reflecting surface on said second fiber is curved to deflect more light substantially along said longitudinal axis of said second fiber.
Claim 24
Dependent Claim
32 words
A fiber-optic probe as defined in claim 1 wherein said first fiber further includes a lens at its axial end adjacent to said target zone for directing light into said target zone.
Claim 25
Dependent Claim
29 words
A fiber-optic probe as defined in claim 1 wherein said light is deep ultraviolet light and said first fiber is a high efficiency, solarization-resistant ultraviolet light transmitting optical fiber.
Claim 26
Dependent Claim
24 words
A fiber-optic probe as defined in claim 1 wherein said second optical fiber has a cross-sectional area greater than that of said first fiber.
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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) | 2001-11-09 | 2002-05-11 | 2002-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-09 | 2006-05-11 | 2006-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-09 | 2010-05-11 | 2010-11-10 | $7700.00 | Window Closed / Lapsed |