Coherent light generators – Particular resonant cavity – Mirror support or alignment structure
Patent
1987-03-23
1988-09-06
Davie, James W.
Coherent light generators
Particular resonant cavity
Mirror support or alignment structure
372 61, 372 65, 372103, H01S 303
Patent
active
047698241
ABSTRACT:
A gas laser system comprising a frame structure including a support member, a laser discharge tube fixed with respect to the frame structure, and a mirror holding structure comprising a mirror holder member positioned in conjunction with the support member, a reflector mirror received in the mirror holder member and aligned with the laser discharge tube, main retaining means pressing upon the mirror holder member toward the support member in a direction parallel with the center axis of the laser discharge tube, and elastic pressing means urging the mirror holder member away from the support member in a direction parallel with the center axis of the laser discharge tube, wherein the mirror holding structure further comprises auxiliary retaining means provided between the support member and the mirror holder member, the auxiliary retaining means comprising a multi-limb leaf spring having a center axis aligned with the center axis of the laser discharge tube and a plurality of limb portions extending radially from the center axis of the spring and each elastically deformable in a direction parallel with the center axis of the spring, the limb portions consisting of those securely attached adjacent their outer ends to the support member and those securely attached adjacent their outer ends to the mirror holder member.
REFERENCES:
patent: 4201951 (1980-05-01), Mohler
patent: 4375688 (1983-03-01), Taguchi
patent: 4468777 (1984-08-01), Takemori et al.
patent: 4613972 (1986-09-01), Bettman
patent: 4644554 (1987-02-01), Sheng
patent: 4646336 (1987-02-01), Koseki
Davie James W.
NEC Corporation
Vo Xuan T.
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