发明授权
US06292275B1 Image scanning apparatus and method, and mirror drive method and mechanism
失效
图像扫描装置及方法及镜像驱动方法及机制
- 专利标题： Image scanning apparatus and method, and mirror drive method and mechanism
- 专利标题（中）： 图像扫描装置及方法及镜像驱动方法及机制
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申请号： US09156660申请日： 1998-09-18
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公开(公告)号： US06292275B1公开(公告)日： 2001-09-18
- 发明人: Hajime Yamamoto , Masato Iwakawa
- 申请人： Hajime Yamamoto , Masato Iwakawa
- 优先权： JP9-253348 19970918
- 主分类号： H04N104
- IPC分类号： H04N104
摘要：
The present invention enables to scan in a sub scan direction an image on a scan medium placed on a flat plane using a simple configuration of a one-dimensional image sensor at a fixed position in combination with a reflecting mirror. A drive source having a constant rpm is used to rotate the reflecting mirror at an angular velocity changing in a non-linear way. The rotation of the drive source is transmitted to a drive mechanism linked to a four-node link mechanism to rotate the reflecting mirror at an angular velocity changing in a non-linear way, so that the scan position on the scan medium is shifted in the sub scan direction at a constant linear velocity.