公开(公告)号：US3646379A

公开(公告)日：1972-02-29

申请号：US3646379D

申请日：1970-05-18

Applicant: MACHLETT LAB INC

Inventor： GAREWAL KHEM ,  SINGER BARRY M

IPC: G21K1/04 ,  H01J35/14 ,  H01J35/00

CPC classification number: H01J35/14 ,  G21K1/04

Abstract: An X-ray tube having means for controlling the width and length of a focal spot area on the anode target surface, the width being adjustable by varying respective positive biasing voltages which are applied to slotted metal cups positioned between the filament and the anode target surface, and the length being externally controllable and continuously adjustable by positioning two movable metallic elements, each being maintained at zero potential or negatively biased with respect to the filament and disposed between a respective end portion of the filament and the slotted metal cups.

Abstract translation: 一种X射线管，其具有用于控制阳极靶表面上的焦点区域的宽度和长度的装置，该宽度可通过改变施加到位于灯丝和阳极靶表面之间的开槽金属杯的各自的正偏置电压来调节 并且该长度可外部控制并通过定位两个可移动的金属元件来连续调节，每个可移动金属元件保持在零电势或相对于灯丝的负偏置并且设置在灯丝的相应端部和开槽的金属杯之间。

公开(公告)号：US3506870A

公开(公告)日：1970-04-14

申请号：US3506870D

申请日：1968-03-27

Applicant: MACHLETT LAB INC

Inventor： SINGER BARRY M ,  JOHNSON CARL T

IPC: H01J19/34 ,  H01J21/18 ,  H01J1/50 ,  H01J3/20 ,  H01J3/32 ,  H01J23/10 ,  H01J29/76

CPC classification number: H01J21/18 ,  H01J19/34 ,  H01J2893/0003

公开(公告)号：US3492528A

公开(公告)日：1970-01-27

申请号：US3492528D

申请日：1968-03-04

Applicant: MACHLETT LAB INC

Inventor： DOOLITTLE HOWARD D ,  SINGER BARRY M

IPC: H01J19/80 ,  H01J7/46

CPC classification number: H01J19/80

公开(公告)号：US3697795A

公开(公告)日：1972-10-10

申请号：US3697795D

申请日：1970-11-20

Applicant: MACHLETT LAB INC

Inventor： BRAUN MARTIN ,  GROSSEL STANLEY S ,  SINGER BARRY M

IPC: H01J29/38 ,  H01J31/50 ,  H01J39/00

CPC classification number: H01J29/38 ,  H01J31/501

Abstract: An image intensifier tube including a multi-radius photocathode having less curvature adjacent its periphery than in the central portion thereof.

Abstract translation: 一种图像增强管，包括在其周边比其中心部分更少的曲率的多半径光电阴极。

公开(公告)号：US3609439A

公开(公告)日：1971-09-28

申请号：US3609439D

申请日：1969-02-27

Applicant: MACHLETT LAB INC

Inventor： SINGER BARRY M

IPC: H01J19/00 ,  H01J21/18 ,  H01J1/36 ,  H01J1/40 ,  H01J43/28

CPC classification number: H01J19/00 ,  H01J21/18

Abstract: A magnetically focused beam power tube having an anode provided with means for suppressing secondary emission, which means comprises Faraday cage-type cavity structures having magnetic shielding for providing substantially magnetic-free regions within the cavities.