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Wide angle lens with large aperture - US7660048B1

发明人 KOZODOI VALERY V [RU]
申请人 ZAO IMPULSE [RU]
申请号 US20080338081
申请 2008-12-18
献号 US7660048
公开日 2010-02-09
IPC
ECLA
优先权 US20080338081
引证 SU1649492A1 WIDE-ANGLE HYDROLENS 1991-05-15
SU1663596A1 FAST OBJECTIVE 1991-07-15
US3736049A WIDE ANGLE PHOTOGRAPHING LENS 1973-05-29
US5724195A Fast super wide-angle lens system 1998-03-03
US7057830B2 High-aperture wide angle cinema projection lens 2006-06-06
参考文献 - Kozodoi, V. V., "Synthesis of a fast wide-angle photographic objective lens with the increased back focal length," Priborostrojenije, State Committee of the RF for higher education, Bulletin of higher education establishments, vol. 37, No. 2, Feb. 1994, pp. 72-74
- Volosov, D. S., "Photographic optics," M., lskusstvo, 1978, pp. 458-459

被
附图
摘要 The invention is aimed at providing a lens having a wider angle of view, increased relative aperture, and higher quality of images. To achieve this technical object, there is a wide-angle lens with a large relative aperture, which contains an aperture diaphragm and seven optical components arranged along the pathway of luminous radiation from the object to the image as follows: the first positive component, the second one, which is a negative meniscus having the concave surface facing the image side, the third negative component, the fourth and the fifth components, the sixth negative component, the seventh positive component, and the aperture diaphragm located between the fifth and the sixth components, wherein the fourth component has a negative power and is made up of two lenses cemented together, the first lens being a biconcave one and the second lens being a biconvex one, the fifth component is a biconvex lens having a positive power, the sixth component is a single biconcave lens, the seventh component is a meniscus with its concave surface facing the object, and after the seventh component several additional ones are introduced, i.e. the eighth component, which is a biconvex lens, the ninth component having a positive power, which is cemented of two lenses, of which the first is a negative meniscus with its concave surface facing the image, and the second one is positive, the tenth component, which is a negative meniscus with its convex surface facing the image, and the eleventh component having a positive power, which is built up of two lenses cemented together, the first lens being a positive biconvex one and the second lens being a negative biconcave one.

参考译文(前1000字符) 本发明的目的是提供一个镜头，具有更广泛的角度看，相对孔径增加，和更高质量的图像。为了实现这一技术的对象，是一个广角镜头，其中包含一个光圈和沿发光的辐射途径如下形象的对象安排的7个光学元件具有较大的相对孔径：第一个积极的组成部分，第二个，这是一种消极的的半月板，图像方面面临的凹面，第三个负成分，第四和第五个组成部分，第六届负成分，第七的积极成分，和位于第五和第六之间的光圈组成部分，其中第四部分有一个负电源和第五个组成部分是由胶结在一起的两个镜头，第一个镜头是一个双凹一个和第二个镜头是一个双凸之一，是一种双凸透镜，具有积极的权力，第六组件是一个单一的双凹LEN。