公开(公告)号：JPS50106648U

公开(公告)日：1975-09-02

申请号：JP11339773

申请日：1973-09-29

IPC: H01F21/06 ,  H01J3/10

公开(公告)号：JPS5021075B1

公开(公告)日：1975-07-19

申请号：JP3218473

申请日：1973-03-20

IPC: H01J3/10

公开(公告)号：JP2000090851A

公开(公告)日：2000-03-31

申请号：JP26025098

申请日：1998-09-14

Applicant: SONY CORP

Inventor： ICHIDA KOUSUKE

IPC: H01J3/02 ,  G21K1/087 ,  H01J3/10 ,  H01J29/48 ,  H01J37/10

Abstract: PROBLEM TO BE SOLVED: To reduce a crossover diameter, consequently reduce an electron beam spot diameter on a plane of projection and lengthen the life of a cathode. SOLUTION: A first electron beam 20 emitted from a cathode 11 is converted into light by a phosphor film 31 provided on an emittance conversion element 21. The converted light is converted into a second electron beam 25 emitted perpendicularly to a plane of a photo cathode film 34 by the photo cathode film 34. A diameter of a crossover 24 is determined by only sum of aberration of an electric field lens formed of second grids 22, 23 and an electronic repulsion effect, a spot size of second electron beam 25 on a plane of projection is made smaller and the life of the cathode 11 is lengthened.

公开(公告)号：JPS6211452B2

公开(公告)日：1987-03-12

申请号：JP5917279

申请日：1979-05-16

Applicant: KOGYO GIJUTSUIN

Inventor： TOMIMASU TAKIO

IPC: H01J37/141 ,  G21K1/00 ,  G21K1/093 ,  H01J3/10 ,  H01J37/10 ,  H05H7/00 ,  H05H7/04

公开(公告)号：JPS581956Y2

公开(公告)日：1983-01-13

申请号：JP17726076

申请日：1976-12-29

IPC: H01J3/10 ,  H01J29/48 ,  H01J29/54 ,  H01J31/26

公开(公告)号：JPS5481063A

公开(公告)日：1979-06-28

申请号：JP14899277

申请日：1977-12-12

Applicant: NIPPON ELECTRON OPTICS LAB

Inventor： ISOBE MORIYUKI

IPC: H01J37/04 ,  H01J3/10 ,  H01J37/147 ,  H01L21/027

Abstract: PURPOSE:To make an alignment of an object lens through only electrical adjustments without accompanying with mechanical adjustments not by providing a stop, etc., for preventing an electron beam from passing through to the center of the magnetic field of the object lens, but by providing a stop plate and electron-beam deflecting method to the upper part of it. CONSTITUTION:Electron beam 2 focuses on the 1st focal poing O1 through electron lens 3 at the 1st stage and the electron-beam image at this point O1 is formed on the surface of sample 5 through object lens 4 at the 2nd stage. Deflecting coils 8 and 9 at two stages constitute the aligning deflecting method which leads an electron beam generated by the electron gun in the caliber direction of stop plate 6; and aligning coil 10 under stop plate 6 is for allowing the center line of the electron beam having passed through stop plate 6 to penetrate center O2 of the lens magnetic field of object lens 4, and two-stage deflecting coils 11 and 12 under it are for shifting the sample irradiation position of the electron beam. In this equipment, the alignment of the object lens is fulfilled through adjustments of variable DC power supply 14 exciting deflecting coil 10.

公开(公告)号：JPS52113387A

公开(公告)日：1977-09-22

申请号：JP6986175

申请日：1975-06-10

Applicant: DAINIPPON TORYO KK

Inventor： KAGAMI AKIYUKI ,  HASE TAKASHI ,  MIMURA YOSHIYUKI ,  NARITA KINICHIROU ,  HEIJIYOU MINORU

IPC: H01J31/15 ,  C09K11/08 ,  H01J3/10

Abstract: PURPOSE:To produce a fluorescent display tube which shows blue luminescence with high luminance when excited by low speed electron beam by using a luminous composition obtained by mixing ZnO with Ag-activated ZnS fluorescent substance in a specific ratio by weight as the fluorescent membrane.

公开(公告)号：JPS5020432B1

公开(公告)日：1975-07-15

申请号：JP8018368

申请日：1968-10-29

IPC: H01J3/10 ,  H01J29/48 ,  H01J29/62