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1. 发明申请

WO2011161543A3 OPTICAL SYSTEM FOR PROJECTION DISPLAY APPARATUS 审中-公开
标题翻译：用于投影显示设备的光学系统
公开(公告)号：WO2011161543A3
公开(公告)日：2012-04-26
申请号：PCT/IB2011001914
申请日：2011-06-25
申请人： SCRAM TECHNOLOGIES ASIA LTD , KIM DONGHA , KIM MANKYUM , SON BYEONGSOO
发明人： KIM DONGHA , KIM MANKYUM , SON BYEONGSOO
IPC分类号： G03B21/28 , G02B27/18 , G03B21/20
CPC分类号： G03B21/008 , G03B21/142 , G03B21/28
摘要： This invention concerns an optical system for a projection display device that includes: a first lens which may emit light entering from a light source with a same angle to a single point; a second lens which is positioned in a way that the light collected from the first lens may be transmitted to a digital micromirror device (DMD) with a predetermined angle; a DMD which may reflect the light entering from the second lens; a prism positioned between the second lens and the DMD that transmits and transfers the light emitted from the second lens to the DMD, and transfers the light reflected from the DMD to a projection lens by totally reflecting the light; and a projection lens that is positioned in the optical path of the light totally reflected from the prism, to project the light onto a screen. According to this invention, as described above, by providing an optical system for a projection display apparatus that is asymmetrically positioned by implementing a symmetric lens that compensates for the optical path difference of light incident on a DMD from a light source, the manufacturing of the system becomes easy. In particular, the use of the symmetric lens makes the lens processing and tolerance management easier at a lower price during the lens production compared to the conventional asymmetric lens. Also, it is easy to set the placement between the symmetric lens and the prism.
摘要翻译：本发明涉及一种用于投影显示装置的光学系统，其包括：第一透镜，其可以以与单个点相同的角度发射从光源入射的光; 第二透镜的定位方式使得从第一透镜收集的光可以以预定角度传送到数字微镜装置（DMD）; 可以反射从第二透镜进入的光的DMD; 位于第二透镜和DMD之间的棱镜，其将从第二透镜发射的光透射并传送到DMD，并且通过全反射光将从DMD反射的光透射到投影透镜; 以及投影透镜，其位于从棱镜全反射的光的光路中，以将光投射到屏幕上。根据本发明，如上所述，通过提供一种用于通过实现补偿来自光源的入射到DMD上的光的光路差异的对称透镜来对称地定位的投影显示装置的光学系统，系统变得容易。特别地，与传统的非对称透镜相比，使用对称透镜在透镜生产期间以更低的价格使得透镜处理和公差管理更容易。此外，很容易设置对称透镜和棱镜之间的位置。

2. 发明申请

WO2012127323A3 PROJECTION LENS APPARATUS 审中-公开
标题翻译：投影镜头装置
公开(公告)号：WO2012127323A3
公开(公告)日：2013-01-17
申请号：PCT/IB2012000699
申请日：2012-03-20
申请人： SCRAM TECHNOLOGIES ASIA LTD , KIM DONGHA , KIM MANKYUM , SON BYEONGSOO
发明人： KIM DONGHA , KIM MANKYUM , SON BYEONGSOO
IPC分类号： G02B13/16 , G02B9/12 , G02B13/18 , G02B13/22 , G02B27/18 , G03B21/00
CPC分类号： G02B13/16 , G02B9/12 , G02B13/006
摘要： A projection lens apparatus for enlarging an image of a pixelized panel on a screen includes a first lens group, a second lens group, and a third lens group. The first lens group has a positive power and includes a telecentric lens for telecentrically adjusting a beam emitting from the panel, and an achromatic lens for calibrating a chromatic aberration of the beam which has passed through the telecentric lens. The second lens group has a positive power and includes an aperture stop for adjusting an amount of beams introduced from the first lens group, a first lens having a convex lens shape to have a positive power and configured to adjust power of the beam introduced through the aperture stop, and a second lens having a meniscus shape concavely curved toward the screen to reduce a size of the beam introduced from the first lens. The third lens group calibrates a distortion of the beam introduced from the second lens group, using a non-spherical lens having a meniscus shape convexly curved toward the screen so as to have a negative power.
摘要翻译：用于放大画面上的像素化面板的图像的投影透镜装置包括第一透镜组，第二透镜组和第三透镜组。第一透镜组具有正的功率，并且包括用于远心地调节从面板发射的光束的远心透镜和用于校准已经通过远心透镜的光束的色差的消色差透镜。第二透镜组具有正光焦度并包括用于调节从第一透镜组引入的光束量的孔径光阑，具有凸透镜形状的第一透镜以具有正光焦度并且被配置为调节通过第一透镜组引入的光束的光焦度孔径光阑，以及具有向屏幕凹入弯曲的弯液面形状的第二透镜，以减小从第一透镜引入的光束的尺寸。第三透镜组使用具有朝向屏幕凸出弯曲的弯月面形状的非球面透镜来校正从第二透镜组引入的光束的失真，从而具有负的功率。

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