公开(公告)号：US3652157A

公开(公告)日：1972-03-28

申请号：US3652157D

申请日：1969-08-13

Applicant: XEROX CORP

Inventor： BLACKERT JOHN E ,  TOWERS HARVEY S

IPC: G03B27/50 ,  G03B27/52 ,  G03B27/62

CPC classification number: G03B27/525 ,  G03B27/50 ,  G03B27/62

Abstract: A transparent rotatable cylinder having spaced support flanges and seats therein for supporting a strip of microfilm and the like a small distance from the cylinder while the microfilm is being projected onto an image plane. A projector lamp is located adjacent the cylinder on the side of the cylinder opposite the image plane to illuminate the microfilm as it is fed in a path concentric with the surface of the cylinder between the cylinder and the image plane.

Abstract translation: 透明的可旋转圆柱体具有间隔开的支撑凸缘和座位，用于在微缩胶片投射到图像平面上时支撑与圆柱体相距很小的微缩胶带等。 投影仪灯位于气缸的与图像平面相对的侧面上，以便在与气缸和图像平面之间的气缸表面同心的路径中进给微缩胶片。

公开(公告)号：US3424525A

公开(公告)日：1969-01-28

申请号：US3424525D

申请日：1966-05-20

Applicant: XEROX CORP

Inventor： TOWERS HARVEY S ,  BLACKERT JOHN E

IPC: G03G15/04 ,  H01L47/00 ,  G03B21/00 ,  G03B27/32

CPC classification number: G03G15/04 ,  G03G15/041 ,  H01L47/00

公开(公告)号：US3379110A

公开(公告)日：1968-04-23

申请号：US49191065

申请日：1965-10-01

Applicant: XEROX CORP

Inventor： BLACKERT JOHN E ,  WEBB DOUGLAS E

IPC: G03B27/20 ,  G03B27/80

CPC classification number: G03B27/20 ,  G03B27/80 ,  Y10T29/49913

公开(公告)号：CA864811A

公开(公告)日：1971-03-02

申请号：CA864811D

Applicant: XEROX CORP

Inventor： BLACKERT JOHN E