US4757513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-faceted reflector for use in pumping slab geometry solid state lasers
Assignee: Amada Engineering and Service Co Inc
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Filing: 1986-07-22
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Granted: 1988-07-12
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Expires: 2006-07-22
Abstract
Abstract This invention relates to a multi-faceted reflector for use in pumping slab geometry solid state lasers. The present invention provides a multi-faceted reflector having a plurality of reflector segments which allow the reflector designer to alter the intensity profile along the longitudinal direction of the flashlamp without having to generate a continuous curve.
Inventors
- 👤 Kenneth A. Fukae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:58
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/0931; H01S3/05; H01S3/06; H01S3/0602; H01S3/0606
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
A multi-faceted reflector for use in pumping a slab geometry laser having a longitudinal slab geometry laser medium and a flashlamp for pumping light through said laser medium aligned with said laser medium in said longitudinal direction; wherein said reflector is divided at the midsection into two opposed end regions in the longitudinal direction, said reflector comprising small flat mirror segments which are arranged in a cross-section of the longitudinal direction so as to form cusp-shaped reflecting surfaces, said mirror segments being arranged in said longitudinal direction so that said reflecting surfaces of said mirror segments form a substantially concave shape near said end regions and wherein an intensity distribution of said light pumped through said laser medium is substantially uniform over the entire length of said slab laser medium.
Claim 2
Dependent Claim
130 words
A multi-faceted reflector for use in pumping a slab geometry laser having a longitudinal slab geometry laser medium and a flashlamp for pumping light through said laser medium aligned with said laser medium in said longitudinal direction; wherein said reflector is divided at the midsection into two opposed end regions in the longitudinal direction, said reflector comprising small flat mirror segments which are arranged in a cross-section of the longitudinal direction so as to form cusp-shaped reflecting surfaces, said mirror segments being arranged in said longitudinal direction so that said reflecting surfaces of said mirror segments form a substantially concave shape near said end regions and wherein an intensity distribution of said light pumped through said laser medium is substantially uniform over the entire length of said slab laser medium.
Claim 3
Dependent Claim
34 words
The multi-faceted reflector as claimed in claim 1, in which said reflector is provided with means so as to be able to change its direction with respect to the flashlamp and the laser medium.
Claim 4
Dependent Claim
52 words
The multi-faceted reflector of claim 1, wherein a center of the concave surface along the longitudinal direction is substantially at a position seperated from each end of the flashlamp and the slab geometry laser medium by l/4 where l is a whole length of the flashlamp and the slab geometry laser medium.
References Cited (Backward Citations)
US4641315A
Cited
US4682338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |