发明申请
US20090195634A1 Lens Array for a Line Head, a Line Head and an Image Forming Apparatus
失效
用于线头的镜头阵列，线头和图像形成装置
- 专利标题： Lens Array for a Line Head, a Line Head and an Image Forming Apparatus
- 专利标题（中）： 用于线头的镜头阵列，线头和图像形成装置
-
申请号： US12362382申请日： 2009-01-29
-
公开(公告)号： US20090195634A1公开(公告)日： 2009-08-06
- 发明人: Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
- 申请人： Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-022638 20080201; JP2008-321937 20081218
- 主分类号： B41J2/447
- IPC分类号： B41J2/447
摘要：
A line head, includes: a head substrate that includes a first light emitting element and a second light emitting element; and a lens array that includes a first positive lens that images a light emitted from the first light emitting element on a specified plane and has a lens surface of a free-form surface, and a second positive lens that images a light emitted from the second light emitting element on the specified plane and has a lens surface of a free-form surface, each of the lens surfaces of the first and the second positive lenses having focal points with different focal lengths.
公开/授权文献
信息查询
IPC分类:
