公开(公告)号：US11686613B2

公开(公告)日：2023-06-27

申请号：US17501268

申请日：2021-10-14

Applicant: Fenno-Aurum Oy

Inventor： Heikki Johannes Sipilä

IPC: G01J1/42 ,  G01J1/04 ,  H01J40/06 ,  H01J40/10 ,  H01J40/16

CPC classification number: G01J1/429 ,  G01J1/0488 ,  H01J40/06 ,  H01J40/10 ,  H01J40/16

Abstract: An ultraviolet flame detector (100) includes a housing (102) having an opening (103) at a first end (101a) of the housing (102), and a window structure (104) arranged to cover the opening (103) of the housing (102). A photocathode (106) is arranged to a second end (101b) of the housing (102) so that the photocathode (106) is facing inside the housing (102). An anode wire (108) is arranged between the window structure (104) and the photocathode (106). The anode wire (108) is configured to travel transversally across the housing (102). The ultraviolet flame detector (102) is filled with a gas.

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：US11961725B2

公开(公告)日：2024-04-16

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 ,  H01J40/16

CPC classification number: H01J40/06 ,  H01J40/10 ,  H01J40/16

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：US2100765A

公开(公告)日：1937-11-30

申请号：US67690333

申请日：1933-06-21

Applicant: WESTINGHOUSE ELECTRIC & MFG CO

Inventor： KNOWLES DEWEY D

IPC: H01J40/10

CPC classification number: H01J40/10