公开(公告)号：US4846569A

公开(公告)日：1989-07-11

申请号：US134105

申请日：1987-12-17

申请人： Osami Katoh ,  Hideaki Kusano

发明人： Osami Katoh ,  Hideaki Kusano

IPC分类号： G03B21/11

CPC分类号： G03B21/113

摘要： An image projecting system for irradiating a microfilm with light emitted from a light source and projecting an image recorded on the microfilm onto an image receptor such as a screen or a photosensitive drum, the image projecting system having a masking unit which is removably mounted in the body of the system. The masking unit contains a first masking portion which is for changing the range of the image advancing toward the image receptor through an optical path, in a first direction of the microfilm, and a second masking portion which is for changing the range of the image in a direction approximately perpendicular to the first direction. These masking portions are disposed in close proximity to the microfilm. Thus, a desired range of the image recorded on the microfilm can be projected on the image receptor and the outer peripheral edge of the projected image is made sharp and clear by the above masking portions. Normal operation and other operations for maintenance can be done easily by removing the masking unit from the system body.

摘要翻译： 一种图像投影系统，用于对从光源发出的光照射微缩胶片并将记录在微缩胶卷上的图像投影到诸如屏幕或感光鼓的图像接收器上，该图像投影系统具有可拆卸地安装在 系统体。 掩模单元包括第一掩模部分，其用于通过光路在微缩胶片的第一方向上改变朝向图像接收器前进的图像的范围，以及第二掩模部分，其用于改变图像的范围 大致垂直于第一方向的方向。 这些遮蔽部分靠近微缩胶片设置。 因此，在微缩胶片上记录的图像的期望范围可以投射到图像接收器上，并且通过上述掩蔽部分使投影图像的外周边缘变得清晰和清晰。 通过从系统主体去除遮蔽单元，可以方便地进行正常操作和维护操作。

公开(公告)号：US4978215A

公开(公告)日：1990-12-18

申请号：US293464

申请日：1989-01-04

申请人： Osami Katoh ,  Hideaki Kusano

发明人： Osami Katoh ,  Hideaki Kusano

IPC分类号： G03B21/11

CPC分类号： G03B21/113

摘要： An image projecting system for irradiating a microfilm with light emitted from a light source and projecting an image recorded on the microfilm onto an image receptor such as a screen or a photosensitive drum, the image projecting system having a masking unit which is mounted in the body of the system removably. The masking unit contains a first masking portion which is for changing the range of the image advancing toward the image receptor through an optical path, in a first direction of the microfilm, and a second masking portion which is for changing the range of the image in a direction approximately perpendicular to the said first direction. These masking portions are disposed in close proximity to the microfilm. Thus, a desired range of the image recorded on the microfilm can be projected on the image receptor and the outer peripheral edge of the projected image is made sharp and clear by the above masking portions. Normal operation and other operations for maintenance can be done easily by removing the masking unit from the system body.

公开(公告)号：US4752124A

公开(公告)日：1988-06-21

申请号：US884007

申请日：1986-07-10

申请人： Nobuo Ueda ,  Osami Katoh ,  Takanori Saito

发明人： Nobuo Ueda ,  Osami Katoh ,  Takanori Saito

IPC分类号： G03B21/11 ,  G03B23/12

CPC分类号： G03B21/113

摘要： A micro film reader for projecting by optical devices on a projection surface a selected image recorded in a micro film having a plurality of recording channels in a direction of width of the micro film. The micro film reader has a film carrier for holding and transporting the micro film, a drive motor for shifting the film carrier in the width direction of the micro film, shifting amount setting keys for setting shifting amount of the film carrier, and a channel switching device. The channel switching device controls the drive motor to shift the film carrier by a shifting amount set by means of the shifting amount setting keys. The micro film reader further has a film shifting device for controlling the drive motor to shift the film carrier by a certain amount in response to external signals.

摘要翻译： 一种微电子阅读器，用于通过光学装置在投影表面上投射记录在具有微薄膜宽度方向的多个记录通道的微薄膜中的选定图像。 微型薄膜读取器具有用于保持和传送微薄膜的薄膜载体，用于在薄膜宽度方向上移动薄膜载体的驱动马达，用于设置薄膜载体的移动量的移动量设定键和通道切换 设备。 通道切换装置控制驱动电动机，以通过移动量设定键设定的移动量移动胶片载体。 微型薄膜读取器还具有一种胶片移动装置，用于控制驱动电动机以响应于外部信号使胶片载体移动一定量。