Patent JPS61204643A successfully refreshed from Google Patents.
US4417341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass laser amplifier having a number of trigger members
Assignee: The University of Osaka
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Filing: 1980-09-24
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Granted: 1983-11-22
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Expires: 2000-09-24
Abstract
Abstract A glass laser amplifier having a number of trigger members comprising a number of flash lamps capable of emitting light to pump a laser glass arranged around said laser glass, a number of reflection mirrors for reflecting light from each of said flash lamps against said laser glass, and a number of trigger members each arranged at a side of a flash lamp opposite the reflection mirror with the flash lamp being held therebetween. Deflection of electric current in the flash lamp by the reflection mirrors is eliminated, and local heating of the inner wall of the flash lamp is prevented by the efficient elimination of the current deflection, resulting in an extensive life of the entire assembly.
Inventors
- 👤 Chiyoe Yamanaka
- 👤 Yoshiaki Kato
- 👤 Kunio Yoshida
- 👤 Eiji Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:19
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/103; G11B15/18; G11B15/44; G11B15/442
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A glass laser amplifier comprising a laser glass in which lasing occurs; a number of flash lamps for emitting light to pump said laser glass arranged around said laser glass; a number of reflection mirrors disposed facing said laser glass and oriented for reflecting light from each of said flash lamps against said laser glass; and a number of trigger members arranged adjacent said flash lamps at the opposite side as said reflection mirrors with each of said flash lamps being held between said trigger members and said reflection mirrors so as to eliminate deflection of electric current in each of said flash lamps caused by said reflection mirrors.
Claim 2
Dependent Claim
109 words
A glass laser amplifier comprising a laser glass in which lasing occurs; a number of flash lamps for emitting light to pump said laser glass arranged around said laser glass; a number of reflection mirrors disposed facing said laser glass and oriented for reflecting light from each of said flash lamps against said laser glass; and a number of trigger members arranged adjacent said flash lamps at the opposite side as said reflection mirrors with each of said flash lamps being held between said trigger members and said reflection mirrors so as to eliminate deflection of electric current in each of said flash lamps caused by said reflection mirrors.
Claim 3
Dependent Claim
29 words
A glass laser amplifier according to claim 1, wherein said trigger members are mounted in tension in a linear form in the same direction as said reflection mirrors extend.
Claim 4
Dependent Claim
26 words
A glass laser amplifier according to claim 1 or 2, further comprising means for connecting said reflection mirrors and said trigger members in common to ground.
Claim 5
Dependent Claim
127 words
A glass laser amplifier, comprising: a laser glass in which lasing can occur in response to optical pumping; a plurality of flash lamps disposed around said laser glass for emitting light to optically pump said laser glass; a plurality of mirrors disposed around and facing said laser glass with said flash lamps between said mirrors and said laser glass and with said mirrors oriented to reflect light emitted from said lamps back to said laser glass; and a plurality of trigger members each corresponding to a respective one of said flash lamps and disposed adjacent its respective flash lamp on a side thereof facing said laser glass and away from said mirrors for eliminating deflection of electric current in its respective flash lamp caused by said mirrors.
Claim 6
Dependent Claim
127 words
A glass laser amplifier, comprising: a laser glass in which lasing can occur in response to optical pumping; a plurality of flash lamps disposed around said laser glass for emitting light to optically pump said laser glass; a plurality of mirrors disposed around and facing said laser glass with said flash lamps between said mirrors and said laser glass and with said mirrors oriented to reflect light emitted from said lamps back to said laser glass; and a plurality of trigger members each corresponding to a respective one of said flash lamps and disposed adjacent its respective flash lamp on a side thereof facing said laser glass and away from said mirrors for eliminating deflection of electric current in its respective flash lamp caused by said mirrors.
Claim 7
Dependent Claim
23 words
A glass laser amplifier according to claim 4, wherein said trigger members extend the length of their respective flash lamps and parallel thereto.
Claim 8
Dependent Claim
31 words
A glass laser amplifier according to claim 5, wherein said trigger members each comprise a length of wire extending the length of its respective flash lamp and mounted thereon under tension.
Claim 9
Dependent Claim
20 words
A glass laser amplifier according to claim 4, further comprising grounding means for grounding said mirrors and said trigger members.
Claim 10
Dependent Claim
23 words
A glass laser amplifier according to claim 7, wherein said trigger members extend the length of their respective flash lamps and parallel thereto.
Claim 11
Dependent Claim
31 words
A glass laser amplifier according to claim 8, wherein said trigger members each comprise a length of wire extending the length of its respective flash lamp and mounted thereon under tension.
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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |