US4671629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microscope for examining the surface finish of fiber optic ends
Assignee: Buehler Ltd
•
Filing: 1984-04-26
•
Granted: 1987-06-09
•
Expires: 2004-04-26
Abstract
Abstract A surface inspection microscope for examining the surface finish of a fiber optic end, the microscope including a fitting for attaching the end of a fiber optic connector, an eyepiece for viewing the fiber optic end, a light source within the microscope for transmitting light along the length of the optic cable, and reflector means for positioning against the opposite end of the fiber optic cable to reflect light from the light source back along the length of the fiber optic cable thereby enhancing the contrast between the end of the fiber optic core and the cladding material which surrounds the core.
Inventors
- 👤 Ralph R. Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:22
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/30; G01M11/31; G02; G02B; G02B21/00; G02B21/0004; G02B21/0008; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/385; G02B6/3863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A surface inspection microscope for examining the surface finish of one end of a length of fiber optic of the type having a core surrounded by cladding material, said microscope including, in combination, an elongated housing, a fitting for attaching one end of said length of fiber optic to one end of said housing, an eyepiece attached at the opposite end of said housing to permit visual inspection of the surface of said one end of said length of fiber optic through said eyepiece, a light bulb within said housing to transmit a constant beam of light into said one end of said length of fiber optic, and a flat mirror mounted on an outside wall of said housing against which the opposite end of said length of fiber optic may be manually held for transmitting light from said light bulb back along the length of said fiber optic to facilitate said visual inspection by aiding in the differentiation between said core and said cladding.
Claim 2
Dependent Claim
165 words
A surface inspection microscope for examining the surface finish of one end of a length of fiber optic of the type having a core surrounded by cladding material, said microscope including, in combination, an elongated housing, a fitting for attaching one end of said length of fiber optic to one end of said housing, an eyepiece attached at the opposite end of said housing to permit visual inspection of the surface of said one end of said length of fiber optic through said eyepiece, a light bulb within said housing to transmit a constant beam of light into said one end of said length of fiber optic, and a flat mirror mounted on an outside wall of said housing against which the opposite end of said length of fiber optic may be manually held for transmitting light from said light bulb back along the length of said fiber optic to facilitate said visual inspection by aiding in the differentiation between said core and said cladding.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |