Light emitting sealed body, light emitting unit, and light source device
AssigneesHamamatsu Photonics K.K., Energetiq Technology, Inc.
InventorsAkio Suzuki, Toru Fujita, Akinori Asai, Yusei Nagata, Shinichi Ohba, Matthew Partlow, Ron Collins, Stephen F. Horne, Laura Owens
Life of this patent
Estimating the term…
Abstract
A light emitting sealed body includes a housing which stores a discharge gas in an internal space and is provided with a first window portion to which first light is incident and a second window portion from which second light is emitted. The housing includes at least one flow path which is partitioned from the internal space and extends toward at least one of the first window portion and the second window portion.
Claims16
A light emitting sealed body comprising:
- a housing which stores a discharge gas in an internal space and is provided with a first window portion to which first light is incident and a second window portion from which second light is emitted, wherein the first light is laser light for maintaining plasma generated in the discharge gas and the second light is light from the plasma,
- wherein the housing includes at least one extension space which is partitioned from the internal space and extends toward at least one of the first window portion and the second window portion, the at least one extension space being formed at an outer surface of the housing.
A light emitting unit comprising:
- a light emitting sealed body;
- and
- a casing which stores the light emitting sealed body,
- wherein the light emitting sealed body includes a housing which stores a discharge gas and is provided with a first window portion to which first light is incident and a second window portion from which second light is emitted, wherein the first light is laser light for maintaining plasma generated in the discharge gas and the second light is light from the plasma, and
- wherein the housing is fixed to the casing, a flow path for supplying a fluid is provided between the housing and the casing, and the flow path extends toward at least one of the first window portion and the second window portion.
A light emitting sealed body comprising:
- a housing which stores a discharge gas in an internal space and is provided with a first window portion to which first light is incident and a second window portion from which second light is emitted, wherein the first light is laser light for maintaining plasma generated in the discharge gas and the second light is light from the plasma, wherein the first window portion includes a first opening which is formed in the housing and a first window member that hermetically seals the first opening and transmits the first light, and wherein the second window portion includes a second opening which is formed in the housing and a second window member that hermetically seals the second opening and transmits the second light,
- wherein the housing includes at least one extension space which is partitioned from the internal space and extends toward at least one of the first window portion and the second window portion, wherein the extension space is formed so as to communicate with at least one of the first opening and the second opening,
- wherein each of the first window member and the second window member is hermetically fixed to the housing by a joining material, and
- wherein a protection layer which covers the joining material is provided at at least one of a first joining position between the first window member and the housing and a second joining position between the second window member and the housing.
Dependencies are inferred from the claim text.