公开(公告)号：KR1020060129132A

公开(公告)日：2006-12-15

申请号：KR1020057012565

申请日：2004-10-29

Applicant: 삼성전자주식회사

Inventor： 윤석일 ,  황규환 ,  시란코프알렉산더페도로비치 ,  포즈냐코프바딤빅토로비치 ,  코로코로프막심에브귀네비치 ,  프로로프막심에브귀네비치

IPC: G02B13/16 ,  H04N5/74

CPC classification number: H04N5/7408 ,  G02B13/16 ,  H01J29/894 ,  H04N9/31 ,  H04N9/3141

Abstract: A projection optical system and a projection television having the same are provided to reduce manufacturing cost of the projection optical system by reducing the number of plastic lenses. A projection optical system includes a lens module(M1) and an electron beam optical module(M2). The lens module includes a plastic compensation power lens and a hybrid lens. The hybrid lens includes a convex-type glass spherical lens and an aspherical lens layer, which is formed on at least one surface of the convex-type glass spherical lens. The electron beam optical module includes a C-type compensation element, a window, and a refrigerant, which is applied between the compensation element and the window. The aspherical lens layer is made of plastic. The hybrid lens has a relative focal power within a range of 0.95 to 0.98 as to the focal power of the projection optical system.

Abstract translation: 提供投影光学系统和具有该投影光学系统的投影电视机，以通过减少塑料透镜的数量来降低投影光学系统的制造成本。 投影光学系统包括透镜模块（M1）和电子束光学模块（M2）。 透镜模块包括塑料补偿功率透镜和混合透镜。 混合透镜包括形成在凸型玻璃球面透镜的至少一个表面上的凸型玻璃球面透镜和非球面透镜层。 电子束光学模块包括施加在补偿元件和窗口之间的C型补偿元件，窗口和制冷剂。 非球面透镜层由塑料制成。 对于投影光学系统的焦度，混合透镜的相对焦度在0.95至0.98的范围内。