Patent US2634986A successfully refreshed from Google Patents.
Patent US4799232A successfully refreshed from Google Patents.
US4799232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas laser and method
Assignee: Siemens AG
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Filing: 1987-07-27
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Granted: 1989-01-17
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Expires: 2007-07-27
Abstract
Abstract A gas laser includes a glass bulb, end-face end pieces of sintered glass, a laser capillary, and mirror mounts fused to one another by glass solder. A method is also disclosed for manufacturing such gas laser, which is particularly suited for lasers of high light yield with high thermal stability.
Inventors
- 👤 Wolfgang Welsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/032; H01S3/0323
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
A discharge vessel for a gas laser, comprising: a vacuum-tight glass bulb having an outer wall; a laser capillary rigidly connected to said discharge vessel at a first end of said glass bulb; a first optical part secured to a first mount, said first mount including a bore extending coaxially with said laser capillary; an end piece closing said glass bulb at one end, said end piece having a bore coaxially aligned with said laser capillary, said end piece being of sintered glass having a low sensitivity to temperature fluctuations and being connected to said glass bulb in vacuum-tight fashion; a second mount aligned with and positioned at an end of said capillary opposite to said first mount and bearing a second optical part; and said first mount comprising a thin walled part connected to said end piece, said first optical part secured in said first mount being a mirror.
Claim 2
Dependent Claim
150 words
A discharge vessel for a gas laser, comprising: a vacuum-tight glass bulb having an outer wall; a laser capillary rigidly connected to said discharge vessel at a first end of said glass bulb; a first optical part secured to a first mount, said first mount including a bore extending coaxially with said laser capillary; an end piece closing said glass bulb at one end, said end piece having a bore coaxially aligned with said laser capillary, said end piece being of sintered glass having a low sensitivity to temperature fluctuations and being connected to said glass bulb in vacuum-tight fashion; a second mount aligned with and positioned at an end of said capillary opposite to said first mount and bearing a second optical part; and said first mount comprising a thin walled part connected to said end piece, said first optical part secured in said first mount being a mirror.
Claim 3
Dependent Claim
26 words
A discharge vessel at claimed in claim 1, wherein said glass bulb and said end piece and said capillary are of the same type of glass.
Claim 4
Dependent Claim
22 words
A discharge vessel as claimed in claim 1, wherein at least one surface of said end piece is fused vacuum-tight after assembly.
Claim 5
Dependent Claim
24 words
A discharge vessel as claimed in claim 1, wherein said first mount is a thin-walled tube having a thick-walled portion forming an annular groove.
Claim 6
Dependent Claim
42 words
A discharge vessel as claimed in claim 4, wherein said thick-walled portion provides a diameter step to a thin-walled end region, and said thin-walled tube is slipped onto said thin-walled end region and is soldered on and pressure against said diameter step.
Claim 7
Dependent Claim
64 words
A discharge vessel as claimed in claim 1, further comprising: glass solder connecting said end piece and said optical parts and said capillary to respective adjoining parts of said glass bulb; said glass bulb having an end region at one end of reduced diameter, said end region being connected to said capillary by said glass solder; and said capillary projecting beyond said glass bulb.
Claim 8
Dependent Claim
36 words
A discharge vessel as claimed in claim 1, further comprising: a second end piece vacuum-tightly closing a second end of said glass bulb, said second end piece being of sintered glass and bearing said second mount.
References Cited (Backward Citations)
US4081762A
Cited
US4651324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |