专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1998023988A1 LENSES FOR ELECTRONIC IMAGING SYSTEMS 审中-公开
标题翻译：电子成像系统的镜头
公开(公告)号：WO1998023988A1
公开(公告)日：1998-06-04
申请号：PCT/US1997020144
申请日：1997-11-12
申请人： U.S. PRECISION LENS INCORPORATED , KREITZER, Melvyn, H.
发明人： U.S. PRECISION LENS INCORPORATED
IPC分类号： G02B09/04
CPC分类号： G02B27/0037 , G02B9/04 , G02B9/10 , G02B13/04 , G02B27/4211
摘要： A lens system for an electronic system has two lenses. The first lens (S1/S2) has a negative power and the second lens (S4/S5 or S5/S6) has a positive power and is spaced from the first lens (S1/S2) by a distance of at least a quarter of the focal length of the lens system. In one embodiment (Fig. 3), the second lens (S4/S5) is a refractive-diffractive hybrid lens in which case both the first and the second lenses (S1/S2 and S4/S5) can be composed of acrylic and can have only spherical and conic surfaces. In other embodiments (Figs. 1, 2 and 4), the first lens (S1/S2) has a higher dispersion than the second lens (S4/S5 or S5/S6), e.g., the first lens (S1/S2) is composed of styrene and the second lens (S4/S5 or S5/S6) is composed of acrylic. In this case, the first lens (S1/S2) can have a spherical and a general aspherical surface, and the second lens (S5/S6) can have conic surfaces (Figs. 1 and 2), or both the first and second lenses (S1/S2 and S4/S5) can have a spherical surface and a conic surface (Fig. 4).
摘要翻译：用于电子系统的透镜系统具有两个透镜。第一透镜（S1 / S2）具有负电源，第二透镜（S4 / S5或S5 / S6）具有正功率并且与第一透镜（S1 / S2）间隔至少四分之一的距离镜头系统的焦距。在一个实施例（图3）中，第二透镜（S4 / S5）是折射衍射混合透镜，在这种情况下，第一和第二透镜（S1 / S2和S4 / S5）都可以由丙烯酸和可以只有球面和圆锥面。在其他实施例（图1,2和4）中，第一透镜（S1 / S2）具有比第二透镜更高的色散（S4 / S5或S5 / S6），例如，第一透镜（S1 / S2）由苯乙烯和第二透镜组成（S4 / S5或S5 / S6）由丙烯酸组成。在这种情况下，第一透镜（S1 / S2）可以具有球面和一般的非球面，并且第二透镜（S5 / S6）可以具有锥形表面（图1和图2），或者第一和第二透镜（S1 / S2和S4 / S5）可以具有球面和圆锥面（图4）。

2. 发明申请

WO1997041461A1 LCD PROJECTION LENS 审中-公开
标题翻译：液晶投影镜头
公开(公告)号：WO1997041461A1
公开(公告)日：1997-11-06
申请号：PCT/US1997007686
申请日：1997-04-28
申请人： U.S. PRECISION LENS INCORPORATED , MOSKOVICH, Jacob
发明人： U.S. PRECISION LENS INCORPORATED
IPC分类号： G02B03/00
CPC分类号： G02B13/16 , G02B9/08
摘要： A projection lens for use with a pixelized panel (LCD) is provided. The lens has two positive lens units (U1, U2) with an aperture stop between them. The optical powers of each of the units are such that f1 is substantially shorter than f2, where f1 and f2 are the focal lengths of the first lens unit (U1) and the second lens unit (U2), respectively, the first lens unit (U1) being on the system's long conjugate side and the second lens unit (U2) being on the short conjugate side. The ratio of f1 to f2 is preferably less than about 0.75.
摘要翻译：提供了一种用于像素化面板（LCD）的投影透镜。镜头具有两个正透镜单元（U1，U2），在它们之间具有孔径光阑。每个单元的光焦度使得f1基本上短于f2，其中f1和f2分别是第一透镜单元（U1）和第二透镜单元（U2）的焦距，第一透镜单元 U1）位于系统的长共轭侧，第二透镜单元（U2）位于短的共轭侧。 f1与f2的比优选小于约0.75。

3. 发明申请

WO1997041477A1 PROJECTION TELEVISION LENS SYSTEM 审中-公开
标题翻译：投影电视镜头系统
公开(公告)号：WO1997041477A1
公开(公告)日：1997-11-06
申请号：PCT/US1997007685
申请日：1997-04-28
申请人： U.S. PRECISION LENS INCORPORATED , MOSKOVICH, Jacob
发明人： U.S. PRECISION LENS INCORPORATED
IPC分类号： G02B09/14
CPC分类号： G02B9/34 , G02B13/16
摘要： Projection lens systems (13) for use in projection televisions are provided. The systems are characterized by a screen side lens unit (U1) which: (1) has a weak optical power; (2) has a negative aspherical lens element composed of a high dispersion material; and (3) has a positive lens element which is composed of a low dispersion material.
摘要翻译：提供用于投影电视机的投影镜头系统（13）。该系统的特征在于：（1）具有弱光功率的屏幕侧透镜单元（U1）（2）具有由高分散材料构成的负极性的非球面透镜元件; 和（3）具有由低分散材料构成的正透镜元件。

4. 发明申请

WO1997033432A1 COUPLER SYSTEMS FOR PROJECTION TELEVISIONS 审中-公开
标题翻译：投影电视联机系统
公开(公告)号：WO1997033432A1
公开(公告)日：1997-09-12
申请号：PCT/US1997003129
申请日：1997-02-28
申请人： U.S. PRECISION LENS INCORPORATED , RUDOLPH, John, D.
发明人： U.S. PRECISION LENS INCORPORATED
IPC分类号： H04N05/74
CPC分类号： H04N9/3141 , H01J29/894 , H01J2229/0084 , H04N5/7408
摘要： A coupler system (13) for mounting a projection lens (15) to a cathode ray tube (16) in a projection television (10) is provided. The system includes a first member (20) composed of a heat and chemical resistant plastic and a second member (22) composed of metal. The second member (22) is mounted to the periphery (18) of the faceplate (17) of the cathode ray tube (16) to provide a high level of heat transfer from the tube. The second member also absorbs x-rays emitted by the tube. The first member can be readily molded from high performance plastic resins and thus reduces the overall cost of the coupler system compared to couplers composed entirely of metal.
摘要翻译：提供一种用于将投影透镜（15）安装到投影电视（10）中的阴极射线管（16）的耦合器系统（13）。该系统包括由耐热和耐化学塑料构成的第一构件（20）和由金属构成的第二构件（22）。第二构件（22）安装到阴极射线管（16）的面板（17）的周边（18）上，从而提供从管的高水平传热。第二个成员也吸收由管发射的X射线。第一构件可以容易地由高性能塑料树脂模制而成，因此与完全由金属构成的成色剂相比，降低了耦合器系统的整体成本。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式