公开(公告)号：US6091550A

公开(公告)日：2000-07-18

申请号：US259175

申请日：1999-02-26

Applicant: Kohtaro Hayashi ,  Yasumasa Sawai ,  Shunta Takimoto ,  Kenji Konno

Inventor： Kohtaro Hayashi ,  Yasumasa Sawai ,  Shunta Takimoto ,  Kenji Konno

IPC: G02B19/00 ,  G02B3/00 ,  G02B13/04 ,  G02B13/18 ,  G02B13/24 ,  G02F1/13 ,  H04N9/31 ,  F21V21/26 ,  G02B15/14 ,  G02B27/14

CPC classification number: H04N9/3105 ,  G02B13/04

Abstract: A projector optical system has a reflection-type display panel, an illumination optical system for illuminating the reflection-type display panel, a projection optical system for projecting the images displayed on the reflection-type display panel onto a projected surface, and a light-deriving means for directing illumination light toward the reflection-type display panel. The projection optical system has, from the projected-surface side, a front lens unit and a rear lens unit. The light-deriving means is disposed between the front and rear lens units. Additionally, the following condition is fulfilled:-1.5

Abstract translation: 投影仪光学系统具有反射型显示面板，照明反射型显示面板用的照明光学系统，投影光学系统，将显示在反射型显示面板上的图像投影到投影面上， 用于将照明光引导到反射型显示面板的导出装置。 投影光学系统从投影面侧具有前透镜单元和后透镜单元。 导光装置设置在前透镜单元和后透镜单元之间。 此外，满足以下条件：-1.5