公开(公告)号：US06992837B2

公开(公告)日：2006-01-31

申请号：US10664043

申请日：2003-09-17

申请人： Seok-il Yoon ,  Gyu-hwan Hwang ,  Alexandr F. Shirankov ,  Oleg V. Rozhkov ,  Vadim V. Pozdnyakov ,  Alexey M. Khorokhorov

发明人： Seok-il Yoon ,  Gyu-hwan Hwang ,  Alexandr F. Shirankov ,  Oleg V. Rozhkov ,  Vadim V. Pozdnyakov ,  Alexey M. Khorokhorov

IPC分类号： G02B3/02 ,  G02B13/18

CPC分类号： G02B13/18

摘要： A hybrid lens and a projection optical system having the hybrid lens are provided. The projection optical system includes a hybrid lens that is positioned along an optical path between a fluorescent surface and a screen onto which light emitted from the fluorescent surface is projected to form an image. The hybrid lens includes a spherical lens and an aspherical lens formed of plastic on at least one surface of the spherical lens. Accordingly, aberration can be corrected to improve image quality.

摘要翻译： 提供了具有混合透镜的混合透镜和投影光学系统。 投影光学系统包括一个混合透镜，该混合透镜沿荧光表面和荧光屏之间的光路定位，从荧光表面发出的光被投射到该屏幕上以形成图像。 混合透镜包括球面透镜和在球面透镜的至少一个表面上由塑料形成的非球面透镜。 因此，可以校正像差以提高图像质量。