公开(公告)号：US10515775B1

公开(公告)日：2019-12-24

申请号：US16261676

申请日：2019-01-30

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Tsuyoshi Kodama ,  Yasuyuki Kohno ,  Shinichi Hara ,  Hideki Shimoi ,  Hiroyuki Kageyama ,  Yusuke Hasegawa ,  Ryota Kakei

IPC分类号： H01J31/49 ,  H01J29/86 ,  H01J29/90 ,  G01J1/42

摘要： An electron tube includes a housing having an internal space airtightly sealed, and an electrode configured to generation or detection of energy by electron emission in the internal space. The housing has a main body part made of an insulating material and formed with a recess constituting the internal space, and a lid part fixed to the main body part so as to close an opening of the recess. The recess expands toward the opening side. The main body part is fixed with a penetrating member that is electrically connected to the electrode and passes through the main body part. The penetrating member has an internal space projecting part that projects from a bottom surface of the recess into the internal space.

公开(公告)号：US11733464B2

公开(公告)日：2023-08-22

申请号：US17286601

申请日：2019-07-11

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Ryota Kakei ,  Shin Kato ,  Fumitsugu Fukuyo ,  Tomoya Nakazawa ,  Masaru Shimomaki ,  Shinichi Ohba ,  Yu Matsushiro

IPC分类号： G02B6/38 ,  G02F1/35 ,  G02F1/365

CPC分类号： G02B6/3803 ,  G02F1/3528 ,  G02F1/365

摘要： A fiber structure includes first and second optical fibers disposed such that end portions thereof butt, a sheet-shaped saturable absorber including a carbon nanotube and disposed between the end portion of the first optical fiber and the end portion of the second optical fiber, and a housing internally accommodating the end portion of the first optical fiber and the end portion of the second optical fiber. A space in the housing including the saturable absorber is airtight.