US3601476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable optical device
Assignee: AT&T Inc
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Filing: 1968-09-16
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Granted: 1971-08-24
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Expires: 1988-09-16
Abstract
Abstract An adjustable holder for optical elements, for use with lasers, exhibits excellent mechanical stability, which is achieved by employment of a beam bent within its elastic limit, to support the optical element. Orientation of the element is then achieved by introducing torsion into the beam, as well as by varying the amount of bending.
Inventors
- 👤 Donald R Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:11
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/086; G; G02; G02B; G02B7/00; G02B7/003; G02B7/004; G02B7/18; G02B7/182; G02B7/1822; G02B7/1824; G02B7/1825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
An adjustable optical device comprising: a frame having a central aperture which defines a central axis; an optical element attached to a holder; means for supporting the holder within the aperture substantially transverse to the central axis; means for mechanically biasing the holder in the direction of the central axis; and means for inclining the holder with respect to the central axis comprising at least two adjusting members mounted to the frame and having end portions which extend into the aperture, said end portions bearing against the holder in opposition to the mechanical bias of the biasing means; characterized in that: said means for supporting the holder consists essentially of a single beam, the beam extending from the holder to the frame along a first axis defined by a radius extending outwardly from and normal to the central axis, the beam having a length L along said axis, and further having a thickness T along a second axis normal to the first axis and normal to the largest surface of the beam, the beam further having a width W along a third axis normal to the first and second axis, said length being 0.85 to 1.10 times the width, and the width being seven times the thickness, the beam being bent along said first axis to within 65-95 percent of the load at its elastic limit.
Claim 2
Dependent Claim
226 words
An adjustable optical device comprising: a frame having a central aperture which defines a central axis; an optical element attached to a holder; means for supporting the holder within the aperture substantially transverse to the central axis; means for mechanically biasing the holder in the direction of the central axis; and means for inclining the holder with respect to the central axis comprising at least two adjusting members mounted to the frame and having end portions which extend into the aperture, said end portions bearing against the holder in opposition to the mechanical bias of the biasing means; characterized in that: said means for supporting the holder consists essentially of a single beam, the beam extending from the holder to the frame along a first axis defined by a radius extending outwardly from and normal to the central axis, the beam having a length L along said axis, and further having a thickness T along a second axis normal to the first axis and normal to the largest surface of the beam, the beam further having a width W along a third axis normal to the first and second axis, said length being 0.85 to 1.10 times the width, and the width being seven times the thickness, the beam being bent along said first axis to within 65-95 percent of the load at its elastic limit.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |