US4569053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser tuner assembly
Assignee: Honeywell International Inc
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Filing: 1982-11-23
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Granted: 1986-02-04
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Expires: 2002-11-23
Abstract
Abstract An improved laser tuner assembly of the type that includes a plurality of parallel, spaced-apart, birefringent plates comprises means for independently adjusting the orientations of the individual plates, clamping means for demountably securing the positions of the individual plates without substantially altering their orientations, and means for rotating the plates as a unit to tune the laser. The tuner permits simple and reproducible orientation of the plates. In a preferred embodiment, tuning is electronically controlled and motor driven.
Inventors
- 👤 Fred P. Roullard, III
- 👤 Douglas L. Zander
- 👤 Robert W. Bromiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/106; H01S3/1062
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
An improved laser tuning apparatus including a plurality of parallel, spaced-apart birefringent plates rotatably mounted within the optical cavity of a tunable laser, the improvement comprising: means for independently adjusting the orientations of the individual plates, comprising: a plate holder for each plate and a screw drive for orienting each plate and holder by rotating them about an axis, and clamping means for demountably securing the positions of the individual plates, without substantially altering their orientations, by exerting on the plate holder a force that is directed substantially parallel to the axis, and means for rotating the plurality of plates as a unit to tune the laser.
Claim 2
Dependent Claim
107 words
An improved laser tuning apparatus including a plurality of parallel, spaced-apart birefringent plates rotatably mounted within the optical cavity of a tunable laser, the improvement comprising: means for independently adjusting the orientations of the individual plates, comprising: a plate holder for each plate and a screw drive for orienting each plate and holder by rotating them about an axis, and clamping means for demountably securing the positions of the individual plates, without substantially altering their orientations, by exerting on the plate holder a force that is directed substantially parallel to the axis, and means for rotating the plurality of plates as a unit to tune the laser.
Claim 3
Dependent Claim
92 words
An improved laser tuning apparatus including a plurality of parallel, spaced-apart birefringent plates rotatably mounted within the optical cavity of a tunable laser, the improvement comprising: means for independently adjusting the orientations of the individual plates, clamping means for demountably securing the positions of the individual plates without substantially altering the orientations, means for rotating the plurality of plates as a unit to tune the laser, means for sensing the rotational position of the plurality of plates, and motorized drive means to rotate the plurality of plates to a desired predetermined position.
Claim 4
Dependent Claim
92 words
An improved laser tuning apparatus including a plurality of parallel, spaced-apart birefringent plates rotatably mounted within the optical cavity of a tunable laser, the improvement comprising: means for independently adjusting the orientations of the individual plates, clamping means for demountably securing the positions of the individual plates without substantially altering the orientations, means for rotating the plurality of plates as a unit to tune the laser, means for sensing the rotational position of the plurality of plates, and motorized drive means to rotate the plurality of plates to a desired predetermined position.
Claim 5
Dependent Claim
24 words
The tuning apparatus of claim 2 further comprising feedback means for controlling the drive means in response to a signal from the sensing means.
References Cited (Backward Citations)
US3868592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |