US4767209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limited diffraction feedback laser system having a composite sensor
Assignee: Charles Stark Draper Laboratory Inc
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Filing: 1985-10-28
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Granted: 1988-08-30
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Expires: 2005-10-28
Abstract
Abstract A low diffraction-feedback high-energy laser system includes an injection laser, a master oscillator power amplifier (MOPA), and means for aligning the injection laser to the MOPA. A composite sensor for providing a dual-sensing capability is disclosed including a mosaic array and a superposed quad sensor.
Inventors
- 👤 William M. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/10084; H01S3/10092; H01S3/05; H01S3/08; H01S3/08081; H01S3/081; H01S3/0813; H01S3/11; H01S3/1123; H01S3/121
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A multiple-function sensor, comprising: a first wide field-of-view sensor sub-assembly of comparatively-large physical dimensions having a N×N array of comparatively low-bandwidth, light-responsive elements for providing a first sensing capability, where N is an integer greater than two; a second narrow field-of-view sensor sub-assembly of comparatively-small physical dimension having a 2×2 array of comparatively high-bandwidth, light-responsive elements for providing a second sensing capability; and means for superimposing said second sensor sub-assembly onto said first sensor sub-assembly in the same physical location.
Claim 2
Dependent Claim
80 words
A multiple-function sensor, comprising: a first wide field-of-view sensor sub-assembly of comparatively-large physical dimensions having a N×N array of comparatively low-bandwidth, light-responsive elements for providing a first sensing capability, where N is an integer greater than two; a second narrow field-of-view sensor sub-assembly of comparatively-small physical dimension having a 2×2 array of comparatively high-bandwidth, light-responsive elements for providing a second sensing capability; and means for superimposing said second sensor sub-assembly onto said first sensor sub-assembly in the same physical location.
Claim 3
Dependent Claim
15 words
The multiple-function sensor of claim 1, wherein said first sensor is a mosaic array sensor.
Claim 4
Dependent Claim
15 words
The multiple-function sensor of claim 2, wherein said second sensor is a quad cell sensor.
Claim 5
Dependent Claim
17 words
The multiple-function sensor of claim 3, wherein said quad sensor is hard-wired onto said mosaic array sensor.
Claim 6
Dependent Claim
25 words
The multiple-function sensor of claim 3, wherein preselected ones of said mosaic array elements are dedicated to serve as the elements of said second sensor.
Claim 7
Dependent Claim
21 words
The multiple-function sensor of claim 1, wherein said first and said second sensor sub-assemblies each have a preselected wavelength response characteristic.
Claim 8
Dependent Claim
17 words
The multiple-function sensor of claim 6, wherein said characteristics are selected to be different from each other.
Claim 9
Dependent Claim
34 words
The multiple-function sensor of claim 1 wherein the first sensor sub-assembly includes sufficient array elements to resolve multiple-spots and wherein said second sensor sub-assembly elements are arranged as a quad cell array for nulling.
Claim 10
Dependent Claim
24 words
The multi-function sensor of claim 1, wherein said first and said second sensor sub-assemblies are operative to simultaneously view their respective fields of view.
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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) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |