US4249792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical observation instrument with fiber optic image stabilizer
Assignee: Societe dOptique Precision Electronique et Mecanique SOPELEM SA
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Filing: 1979-03-21
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Granted: 1981-02-10
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Expires: 1999-03-21
Abstract
Abstract An optical observation instrument including on the one hand a mounting in which are mounted a convergent objective lens and a convergent eyepiece and on the other hand a disc formed of optical fibers arranged so as to reverse the image given by the objective lens and connected to the mounting by way of an articulation and held in a stable position, the front face of this disc being substantially at the focus of this objective lens.
Inventors
- 👤 Jacques Moirez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:20
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/646
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
An optical observation instrument comprising a mounting, a convergent objective lens and a convergent eyepiece supported in said mounting, a bearer frame integral with a disc of optical fibers arranged so as to provide on the output face an image reversed with respect to the incident image on the input face, a gimbal type articulation connecting said bearer frame and disc to said mounting, the front face of said disc being substantially at the focus of said objective lens, said articulation being located in front of said disc at a distance substantially equal to half the difference between the focal length of the objective lens and the thickness of the disc, and means for retaining the disc in a stable position.
Claim 2
Dependent Claim
121 words
An optical observation instrument comprising a mounting, a convergent objective lens and a convergent eyepiece supported in said mounting, a bearer frame integral with a disc of optical fibers arranged so as to provide on the output face an image reversed with respect to the incident image on the input face, a gimbal type articulation connecting said bearer frame and disc to said mounting, the front face of said disc being substantially at the focus of said objective lens, said articulation being located in front of said disc at a distance substantially equal to half the difference between the focal length of the objective lens and the thickness of the disc, and means for retaining the disc in a stable position.
Claim 3
Dependent Claim
28 words
An instrument as in claim 1, in which the front face and the rear face of the disc are spherical and centered upon the center of said articulation.
Claim 4
Dependent Claim
49 words
An instrument as in claim 2, in which the objective lens exhibits a field curvature having substantially the same radius as the front face of the disc of optical fibers and the eyepiece exhibits a field curvature having substantially the same radius as the rear face of the disc.
Claim 5
Dependent Claim
29 words
An instrument as in claim 1 or claim 2, further comprising means for balancing the mass of the disc of optical fibers with respect to its point of articulation.
Claim 6
Dependent Claim
45 words
An instrument as in claim 1 or claim 2 or claim 3, comprising a gyroscope mounted integral with the bearer frame and mirrors integral with the mounting and located between the disc and the gyroscope so as to reflect the image given by the objective.
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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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |