Patent US4837769A successfully refreshed from Google Patents.
US4837769A
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Phase conjugated slab laser designator
Assignee: United States Department of the Army
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Filing: 1989-02-01
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Granted: 1989-06-06
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Expires: 2009-02-01
Abstract
Abstract A portable laser designator is provided having a highly efficient slab typeSGG:Cr:Nd output laser with a phase conjugation mirror and compact folded optical system.
Inventors
- 👤 Suresh Chandra
- 👤 Jeffrey L. Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:17
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; H01S3/2325; H01S3/2333; F; F41; F41G; F41G3/00; F41G3/14; F41G3/145; G; G02; G02B; G02B23/00; H01S3/14; H01S3/16; H01S3/005; H01S3/05; H01S3/06; H01S3/0602; H01S3/0606; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/10; H01S3/10076; H01S3/1601; H01S3/1603; H01S3/1611; H01S3/162; H01S3/1623; H01S3/163; H01S3/164
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
A laser designator; comprising a laser pump means; a high power phase conjugated slab laser amplifier formed of GSGG:Cr:Nd as a lasing material on one side of said pump means; a low power rod shaped laser oscillator on the opposite side of said pump means; and a first plurality of optical reflecting and refracting means for directing and shaping a laser beam which surrounds said pump means and passes through said rod and slab; and a telescope means coupled to said beam to direct it to a distant target.
Claim 2
Dependent Claim
89 words
A laser designator; comprising a laser pump means; a high power phase conjugated slab laser amplifier formed of GSGG:Cr:Nd as a lasing material on one side of said pump means; a low power rod shaped laser oscillator on the opposite side of said pump means; and a first plurality of optical reflecting and refracting means for directing and shaping a laser beam which surrounds said pump means and passes through said rod and slab; and a telescope means coupled to said beam to direct it to a distant target.
Claim 3
Dependent Claim
55 words
A designator according to claim 1, wherein: said rod, slab and pump are mounted in an elongated cylindrical housing; said telescope is mounted parallel to said housing; and a second plurality of reflecting and refracting means are mounted between said housing and said telescope to direct said beam through the objective lens of said telescope.
Claim 4
Dependent Claim
51 words
A designator according to claim 2 wherein a third plurality of reflecting and refracting means are mounted in said telescope to separate said laser beam from visible light reflected from said target through said objective lens to the eyepiece of the telescope and to fold the focal length of said telescope.
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) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |