US 12,191,623 B2
Light emitting sealed body and light source device
Akio Suzuki, Hamamatsu (JP); Toru Fujita, Hamamatsu (JP); Akinori Asai, Hamamatsu (JP); Yusei Nagata, Hamamatsu (JP); Shinichi Ohba, Hamamatsu (JP); Takayuki Ohshiro, Hamamatsu (JP); Matthew Partlow, Somerville, MA (US); Ron Collins, Londonderry, NH (US); Stephen F. Horne, Medford, MA (US); and Laura Owens, Arlington, MA (US)
Assigned to Hamamatsu Photonics K.K., (JP); and Energetiq Technology, Inc., Wilmington, MA (US)
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP); and ENERGETIQ TECHNOLOGY, INC., Wilmington, MA (US)
Filed on Nov. 27, 2023, as Appl. No. 18/520,272.
Application 18/520,272 is a continuation of application No. 17/129,750, filed on Dec. 21, 2020, granted, now 11,862,922.
Prior Publication US 2024/0097394 A1, Mar. 21, 2024
Int. Cl. H01S 3/034 (2006.01); H01S 3/03 (2006.01); H01S 3/038 (2006.01); H01S 3/0971 (2006.01)
CPC H01S 3/034 (2013.01) [H01S 3/038 (2013.01); H01S 3/0385 (2013.01); H01S 3/0305 (2013.01); H01S 3/09716 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A light emitting sealed body comprising:
a housing which stores a discharge gas and is provided with a first opening to which first light is incident along a first optical axis and a second opening from which second light is emitted along a second optical axis, wherein the first light is laser light for maintaining plasma generated in the discharge gas and the second light is light from the plasma;
a first window portion that hermetically seals the first opening and transmits the first light, the first window portion including a first light incident surface and a first light emitting surface; and
a second window portion which hermetically seals the second opening and transmits the second light, the second window portion including a second light incident surface and a second light emitting surface,
wherein the housing is formed of a light shielding material which does not transmit the first light and the second light,
wherein an internal space is defined by the housing, the first window portion, and the second window portion and the entire internal space is filled with the discharge gas,
wherein the first opening and the second opening are disposed so that the first optical axis and the second optical axis intersect each other, and
wherein each of the first light incident surface, the first light emitting surface, the second light incident surface, and the second light emitting surface is located closer to an intersection between the first optical axis and the second optical axis than an outer surface of the housing.