公开(公告)号：US20230160630A1

公开(公告)日：2023-05-25

申请号：US17985280

申请日：2022-11-11

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsuyoshi KODAMA ,  Masaki YAMADA

IPC: F25D31/00 ,  F25D19/00 ,  H05B3/00

CPC classification number: F25D31/005 ,  F25D19/006 ,  H05B3/0071

Abstract: A refrigeration system includes: a vacuum chamber forming a cooling region accommodating an object; a cooling unit that cools the object accommodated in the cooling region; and a heating unit disposed in the cooling region to generate heat. The heating unit includes an optical fiber that guides light provided from an outside of the vacuum chamber, and a heating block that is disposed in the cooling region and that receives the light emitted from the optical fiber, to generate heat. The heating block includes a closed region configured to be isolated from the cooling region. A light-emitting end of the optical fiber is exposed to the closed region.

公开(公告)号：US20230369035A1

公开(公告)日：2023-11-16

申请号：US18026364

申请日：2021-09-03

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsuyoshi KODAMA ,  Masaki YAMADA

IPC: H01J40/06 ,  H01J40/10

CPC classification number: H01J40/06 ,  H01J40/10

Abstract: A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion including a photoelectric surface disposed inside the housing, an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing, and a conductive layer disposed on a light transmitting portion side of at least a part of the electron capturing portion to face the photoelectric surface inside the housing and configured to allow light to pass therethrough.

公开(公告)号：US20230352285A1

公开(公告)日：2023-11-02

申请号：US18026368

申请日：2021-09-03

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsuyoshi KODAMA ,  Masaki YAMADA ,  Shinichi HARA ,  Naoki UMEBAYASHI

IPC: H01J47/02

CPC classification number: H01J47/02

Abstract: A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion held by a recess provided in the housing, the electron emitting portion including a concave photoelectric surface facing a light transmitting portion side inside the housing, and an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing. At least a part of the electron capturing portion is located inside a region on an inside of the photoelectric surface.