Patent ID: 11879683
Assignee: KLA CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC F  H | IPC F  H

Claim 18:
19. A light source, comprising:
a vertically translatable, rotatable drum;
an exhaust tube coupled to the drum to exhaust nitrogen gas from an interior of the drum, wherein the exhaust tube extends vertically;
a feed tube situated within the exhaust tube to provide liquid nitrogen to the interior of the drum, wherein the feed tube extends vertically;
a casing to surround at least a portion of the exhaust tube;
a rotary air bearing between the exhaust tube and the casing, to allow the exhaust tube to rotate with the drum and to translate vertically with the drum;
a flange to level the casing; and
a linear air bearing between the casing and the flange.