US4527870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable illuminated optical fiber microscope
Assignee: Leica Microsystems Inc
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Filing: 1983-01-24
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Granted: 1985-07-09
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Expires: 2003-01-24
Abstract
Abstract A portable microscope for inspecting fiber optic cables has an illumination system including a selectively positionable light occluder which permits end examination of a cable when in a first position and examination of the optical transmission of the cable when in a second position.
Inventors
- 👤 Edward N. Esmay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:39
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/30; G02; G02B; G02B21/00; G02B21/0004; G02B21/0008; G02B21/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
A microscope for inspecting fiber optic cables, comprising: (a) a housing having an opening therein; (b) an optical system including a first axis, and an eyepiece, a beam splitter and an objective positioned along said first axis; (c) a light source positioned in said housing along both a second axis, which intersects said first axis at said beam splitter, and a third axis, which passes through said opening in said housing, whereby said light source is capable of providing illumination along said first, second and third axes; and (d) a light occluder selectively positionable across said second axis, whereby illumination from said light source is blocked from said first axis when said light occluder is in a first position across said second axis and illumination from said light source is provided along said first, second and third axes when said light occluder is in a second position removed from said second axis.
Claim 2
Dependent Claim
152 words
A microscope for inspecting fiber optic cables, comprising: (a) a housing having an opening therein; (b) an optical system including a first axis, and an eyepiece, a beam splitter and an objective positioned along said first axis; (c) a light source positioned in said housing along both a second axis, which intersects said first axis at said beam splitter, and a third axis, which passes through said opening in said housing, whereby said light source is capable of providing illumination along said first, second and third axes; and (d) a light occluder selectively positionable across said second axis, whereby illumination from said light source is blocked from said first axis when said light occluder is in a first position across said second axis and illumination from said light source is provided along said first, second and third axes when said light occluder is in a second position removed from said second axis.
Claim 3
Dependent Claim
20 words
The microscope according to claim 1, wherein said optical system is mounted in an optical tube supported by said housing.
Claim 4
Dependent Claim
28 words
The microscope according to claim 2, wherein said optical tube assembly includes means thereon for rotatably mounting said light occluder with respect to and about said third axis.
Claim 5
Dependent Claim
28 words
The microscope according to claim 3, wherein said light occluder includes an aperture therein alignable with said second axis when said light occluder is in said second position.
Claim 6
Dependent Claim
36 words
The microscope according to claim 4, wherein at least a portion of said light occluder adjacent said aperture is opaque, said opaque portion intersecting said second axis when said light occluder is in said first position.
Claim 7
Dependent Claim
14 words
The microscope according to claim 1, wherein said light occluder includes a focusing lens.
Claim 8
Dependent Claim
22 words
The microscope according to claim 1, wherein said light occluder is introduceable, to or removable from, said housing through said aperture therein.
Claim 9
Dependent Claim
22 words
The microscope according to claim 5, wherein said light occluder is introduceable, to or removable from, said housing through said aperture therein.
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) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |