US3926510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror for high power lasers
Assignee: Combustion Engineering Inc
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Filing: 1974-03-20
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Granted: 1975-12-16
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Expires: 1994-03-20
Abstract
Abstract A laser mirror resistant to thermal distortions produced by radiative heatind and/or heating by other processes associated with high power lasers. A thick metal block is separated into a thin face portion, an intermediate portion and a rear portion by a plurality of co-planar closely spaced intersecting coolant passages provided by drilling intersecting holes preferably at right angles to each other entirely through the block near one end. The intersecting holes form a plurality of spaced connector members or pillars in the intermediate portion integral with the face and rear portions. Coolant means including a manifold surrounding the holes is provided to permit coolant under pressure to be passed through the space defined by the holes.
Inventors
- 👤 Edward V Locke
- 👤 Richard A Hella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:09
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/0401; G; G02; G02B; G02B5/00; G02B5/08; G02B7/00; G02B7/18; G02B7/181; G02B7/1815; H01S3/0407
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
198 words
In a mirror for use in a laser, the combination comprising: a. a thick integral metal block member having a hardness greater than about Rockwell B 30 , a rear surface and an exposed surface, said exposed surface being adapted to define a laser mirror surface, and block member having a plurality of coplanar intersecting passages, said passages in combination with said exposed surface defining a face portion, said passages in combination with said rear surface defining a rear portion, and a plurality of spaced connector members extending between and integral with said face and rear portions defined by said passages; b. metal wall member means sealably attached to said block to define coolant manifold means in communication with the ends of each passage; and c. baffle means between said wall member means and said block member separating said manifold means into an inlet coolant manifold and an outlet coolant manifold whereby coolant introduced in said inlet coolant manifold flows substantially only through said passages and into said outlet coolant manifold, said block member having a coolant inlet passage in communication with said inlet coolant manifold and a coolant outlet passage in communication with said coolant outlet manifold.
Claim 2
Dependent Claim
198 words
In a mirror for use in a laser, the combination comprising: a. a thick integral metal block member having a hardness greater than about Rockwell B 30 , a rear surface and an exposed surface, said exposed surface being adapted to define a laser mirror surface, and block member having a plurality of coplanar intersecting passages, said passages in combination with said exposed surface defining a face portion, said passages in combination with said rear surface defining a rear portion, and a plurality of spaced connector members extending between and integral with said face and rear portions defined by said passages; b. metal wall member means sealably attached to said block to define coolant manifold means in communication with the ends of each passage; and c. baffle means between said wall member means and said block member separating said manifold means into an inlet coolant manifold and an outlet coolant manifold whereby coolant introduced in said inlet coolant manifold flows substantially only through said passages and into said outlet coolant manifold, said block member having a coolant inlet passage in communication with said inlet coolant manifold and a coolant outlet passage in communication with said coolant outlet manifold.
Claim 3
Dependent Claim
28 words
The combination as defined in claim 1 wherein said coolant inlet and coolant outlet passages are provided in said rear portion and said block is comprised of copper.
Claim 4
Dependent Claim
26 words
The combination as defined in claim 1 and additionally including coolant swirl inducing means loosely disposed in those passages extending between said inlet and outlet manifolds.
Claim 5
Dependent Claim
211 words
In a mirror for use in a laser, the combination comprising: a. a thick integral metal block member consisting of substantially half-hardened copper, said block member having a rear surface, and exposed surface adapted to define a laser mirror surface and a plurality of co-planar intersecting passages extending completely through said block member, said passages in combination with said exposed surface defining a thin face portion, a plurality of spaced connector members defined by said passages extending between and integral with said face portion and the remainder of said block member, the periphery of said face portion extending outwardly past the ends of said passages; b. metal wall member means sealably attached to the periphery of said face portion and said block member to define coolant manifold means in communication with the ends of said passages; and c. loose fitting baffle means between said wall member means and said block member separating said maniFold means into an outlet coolant manifold and an outlet coolant manifold whereby coolant introduced in said inlet coolant manifold flows substantially only through said passages and into said outlet coolant manifold, said block member having a coolant inlet passage in communication with said inlet coolant manifold said coolant outlet passage in communication with said coolant outlet manifold.
Claim 6
Dependent Claim
211 words
In a mirror for use in a laser, the combination comprising: a. a thick integral metal block member consisting of substantially half-hardened copper, said block member having a rear surface, and exposed surface adapted to define a laser mirror surface and a plurality of co-planar intersecting passages extending completely through said block member, said passages in combination with said exposed surface defining a thin face portion, a plurality of spaced connector members defined by said passages extending between and integral with said face portion and the remainder of said block member, the periphery of said face portion extending outwardly past the ends of said passages; b. metal wall member means sealably attached to the periphery of said face portion and said block member to define coolant manifold means in communication with the ends of said passages; and c. loose fitting baffle means between said wall member means and said block member separating said maniFold means into an outlet coolant manifold and an outlet coolant manifold whereby coolant introduced in said inlet coolant manifold flows substantially only through said passages and into said outlet coolant manifold, said block member having a coolant inlet passage in communication with said inlet coolant manifold said coolant outlet passage in communication with said coolant outlet manifold.
Claim 7
Dependent Claim
38 words
The combination as defined in claim 4 wherein said wall member consists substantially of half-hardened copper and additionally including loose fitting fluid swirl inducing means disposed in said passages communicating directly with said inlet and outlet coolant manifolds.
Claim 8
Dependent Claim
70 words
The combination as defined in claim 4 wherein said passages have a first dimension parallel to said exposed surface and a second dimension normal to said exposed surface, said first dimension being less than said second dimension, and additionally including loosely fitting fluid flow blocking means disposed in and effectively blocking the middle portion of said passages whereby fluid may flow through said passages substantially only in two separated regions.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |