公开(公告)号：US3651369A

公开(公告)日：1972-03-21

申请号：US3651369D

申请日：1969-10-24

申请人： SONY CORP

发明人： SAWAI MASAHIDE

IPC分类号： H01J29/62 ,  H01J31/20 ,  H01J29/50

CPC分类号： H01J31/206 ,  H01J29/624

摘要： In a cathode ray tube comprising beam producing means to direct a plurality of electron beams from spaced apart locations to impinge on an electron receiving screen, the beams are focused on the screen by a main focusing lens which is common to all of the beams and has an optical center, and an auxiliary lens disposed between the beam producing means and the main focusing lens and having all of the beams passing therethrough with at least two of the beams being at different distances from the optical axis of the auxiliary lens, such auxiliary lens is operative to cause the beams to intersect at the optical center of the main focusing lens and has pre-focusing effects on the beams which are different at least with respect to the said two beams, and an additional focusing lens means is disposed between the main focusing lens and the screen and acts on less than all of the beams to correct for the different pre-focusing effects and thereby cause all of the beams to be focused precisely at the screen.

摘要翻译： 在包括用于引导来自间隔开的位置的多个电子束撞击在电子接收屏上的光束产生装置的阴极射线管中，所述光束通过主聚焦透镜聚焦在屏幕上，所述主聚焦透镜对于所有光束是共同的，并且具有 光学中心和辅助透镜，其设置在光束产生装置和主聚焦透镜之间，并且具有穿过其中的所有光束，其中至少两个光束处于与辅助透镜的光轴不同的距离处，这种辅助透镜 可操作地使光束在主聚焦透镜的光学中心相交并且对至少相对于所述两个光束不同的光束具有预聚焦效果，并且附加的聚焦透镜装置设置在主要聚焦透镜之间 聚焦透镜和屏幕，并且作用于小于所有光束以校正不同的预聚焦效果，从而使所有光束精确地聚焦在 屏幕。

公开(公告)号：US3594600A

公开(公告)日：1971-07-20

申请号：US3594600D

申请日：1969-12-29

申请人： SONY CORP

发明人： MURATA HIROSHI ,  INOSE AKIYOSHI ,  SAWAI MASAHIDE ,  FUSE YUZO

IPC分类号： H01J29/51 ,  H01J29/70 ,  H01J29/50 ,  H01J29/76

CPC分类号： H01J29/707 ,  H01J29/701

摘要： In a color cathode-ray tube of the plural-beam type wherein the beams originate on a horizontal or vertical straight line and are directed into fields produced by a horizontal-vertical electromagnetic deflection yoke at predetermined incident angles to each other so as to converge at a color screen, magnetic shielding means, for example, secured to electron beam convergence plates, are disposed for selectively shielding at least one of the beams from the leakage flux produced by the horizontal-vertical electromagnetic deflection yoke in deflecting the beams in the direction of the line of origination thereof, whereby such leakage flux acts selectively on only the unshielded beam or beams for correcting a deviation between the positions of rasters on the color screen produced by the plural beams.

公开(公告)号：US3500114A

公开(公告)日：1970-03-10

申请号：US3500114D

申请日：1968-08-19

申请人： SONY CORP

发明人： SAWAI MASAHIDE

IPC分类号： H01J29/70 ,  H01J31/20 ,  H04N9/285 ,  H01J29/50

CPC分类号： B82Y10/00 ,  H01J29/701 ,  H01J31/203 ,  H01J2229/964 ,  H04N9/285