US3591250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical image motion stabilizer with rotation rate comparison system
Assignee: STEK CORP
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Filing: 1968-04-08
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Granted: 1971-07-06
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Expires: 1988-04-08
Abstract
Abstract Apparatus is disclosed for stabilizing image motion in optical instruments due to instrument motions normal to the line of sight by driving reflection means in the optical path of the instrument to compensate for image motion normal to the line of sight in response to rotations of the instrument about axes normal to the line of sight.
Inventors
- 👤 Herbert William Feinstein
- 👤 Edward Paul Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/644
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
Apparatus as set forth in claim 1 further including mode selector means for enabling the instrument to be operated in a pan mode without compensation for image motion in the optical instrument due to instrument rotation below a predetermined rate of rotation including first means, interposed between said means for producing a third electrical signal and said means for adjusting the position of said first radiation reflection means, for preventing the passage of electrical signals indicative of instrument rotation below said predetermined rate to said means for adjusting the position of said first radiation reflection means, and second means, interposed between said means for producing a sixth electrical signal and said means for adjusting the position of said second radiation reflection means, for preventing the passage of electrical signals indicative of instrument rotations below a predetermined rate to said means for adjusting the position of said second radiation reflection means,
Claim 2
Dependent Claim
61 words
Apparatus as set forth in claim 2 wherein said means for sensing the rate of rotation of said instrument about said first axis includes a rate gyro responsive to rotation about said first axis, and said means for sensing the rate of rotation of said instrument about said second axis includes a rate gyro responsive to rotation about said second axis.
Claim 3
Dependent Claim
31 words
Apparatus as set forth in claim 3 further including an objEctive lens positioned at the forward portion of said optic axis between the viewed object and said image motion stabilizer apparatus.
Claim 4
Dependent Claim
61 words
Apparatus as set forth in claim 1 wherein said means for sensing the rate of rotation of said instrument about said first axis includes a rate gyro responsive to rotation about said first axis, and said means for sensing the rate of rotation of said instrument about said second axis includes a rate gyro responsive to rotation about said second axis.
Claim 5
Dependent Claim
31 words
Apparatus as set forth in claim 1 further including an objective lens positioned at the forward portion of said optic axis between the viewed object and said image motion stabilizer apparatus.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |