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US 2024/0331997 A1Published application
Flash lamp
AssigneeHamamatsu Photonics K.K.
InventorTatsuaki SASAKI
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Abstract
A flash lamp includes a housing having a stem, a first conductive linear member extending so as to penetrate the stem, and a second conductive linear member extending so as to penetrate the stem. The first conductive linear member includes a first lead portion and a first electrode portion provided at a tip of the first lead portion. The second conductive linear member includes a second lead portion and a second electrode portion provided at a tip of the second lead portion. The first electrode portion includes a first protruding portion protruding into an internal space, and a first buried portion buried in the stem. The second electrode portion includes a second protruding portion protruding into the internal space, and a second buried portion buried in the stem.
Claims11
1:
- A flash lamp comprising:
- a housing having a stem and defining an internal space;
- a first conductive linear member extending so as to penetrate the stem in a first direction;
- and
- a second conductive linear member extending so as to penetrate the stem in the first direction and spaced apart from the first conductive linear member in a second direction intersecting the first direction,
- wherein the first conductive linear member comprises a first lead portion and a first electrode portion provided at a tip of the first lead portion,
- wherein the second conductive linear member comprises a second lead portion and a second electrode portion provided at a tip of the second lead portion,
- wherein a cross-sectional area of the first electrode portion intersecting the first direction is different from a cross-sectional area of the first lead portion intersecting the first direction,
- wherein a cross-sectional area of the second electrode portion intersecting the first direction is different from a cross-sectional area of the second lead portion intersecting the first direction,
- wherein the first electrode portion comprises a first protruding portion protruding from the stem into the internal space, and a first buried portion connected to the tip of the first lead portion and buried in the stem, and
- wherein the second electrode portion comprises a second protruding portion protruding from the stem into the internal space, and a second buried portion connected to the tip of the second lead portion and buried in the stem.
8 more elements
2:
- The flash lamp according to claim 1,
- wherein the stem includes a first surface facing the internal space and a second surface opposite to the first surface in the first direction, and
- wherein a distance between the first protruding portion and the second protruding portion in the second direction is shortest on the first surface.
3:
- The flash lamp according to claim 2,
- wherein the first protruding portion has a shape approaching the second protruding portion toward the first surface.
4:
- The flash lamp according to claim 3,
- wherein the second protruding portion has a shape approaching the first protruding portion toward the first surface.
5:
- The flash lamp according to claim 3,
- wherein the first electrode portion has a spherical shape.
6:
- The flash lamp according to claim 3,
- wherein the first electrode portion has a conical shape.
7:
- The flash lamp according to claim 1,
- wherein a length of the first protruding portion in the first direction is equal to or shorter than a length in the first direction of a discharge path formed between the first protruding portion and the second protruding portion, and
- wherein a length of the second protruding portion in the first direction is equal to or shorter than the length of the discharge path in the first direction.
8:
- The flash lamp according to claim 1, further comprising a third conductive linear member extending so as to penetrate the stem in the first direction,
- wherein the third conductive linear member comprises a third lead portion and a sparker portion provided at a tip of the third lead portion,
- wherein the sparker portion comprises a third protruding portion protruding from the stem into the internal space,
- wherein the first electrode portion is a cathode, and the second electrode portion is an anode, and
- wherein the first protruding portion is disposed between the second protruding portion and the third protruding portion in the second direction.
2 more elements
9:
- The flash lamp according to claim 8,
- wherein a distance between the first protruding portion and the third protruding portion in the second direction is shorter than a distance between the first protruding portion and the second protruding portion in the second direction.
10:
- The flash lamp according to claim 1, further comprising a fourth conductive linear member extending so as to penetrate the stem in the first direction,
- wherein the fourth conductive linear member comprises a fourth lead portion and a trigger probe portion provided at a tip of the fourth lead portion,
- wherein the trigger probe portion comprises a fourth protruding portion protruding from the stem into the internal space, and
- wherein the fourth protruding portion is disposed between the first protruding portion and the second protruding portion in the second direction.
1 more element
11:
- The flash lamp according to claim 10,
- wherein a length of the fourth protruding portion in the first direction is equal to or shorter than a length of the first protruding portion in the first direction and a length of the second protruding portion in the first direction.