The invention discloses a large-view-field large-aperture lens system for color low-illumination imaging. A meniscus first lens, a meniscus second lens, a biconvex spherical third lens, a diaphragm, a biconvex spherical fourth lens, a biconvex spherical fifth lens, a biconcave spherical sixth lens and an aspheric seventh lens are sequentially arranged from an object plane to an image plane; according to the scheme, optical parameters of all the lenses are reasonably set and used in cooperation, aberration can be corrected, meanwhile, positive focal power is matched, the structure is simple, the light path is reasonable, the problems that an existing large-view-field lens is small in aperture and insufficient in definition are solved, and the color low-illumination imaging function can be achieved by matching an image sensor with the large pixel size.
本发明公开了一种彩色低照度成像用大视场大光圈镜头系统,其中的弯月球面第一透镜、弯月球面第二透镜、双凸球面第三透镜、光阑、双凸球面第四透镜、双凸球面第五透镜、双凹球面第六透镜和非球面第七透镜从物面到像面依次设置;本方案通过合理设置各个透镜的光学参数,配合使用,可以矫正像差,同时正度光焦度匹配,结构简单,光路合理,解决了现有大视场镜头孔径小、清晰度不足的问题,通过匹配大像元尺寸的图像传感器,可以实现彩色低照度成像功能。
Large-view-field and large-aperture lens system for color low-illumination imaging
一种彩色低照度成像用大视场大光圈镜头系统
2025-03-18
Patent
Electronic Resource
Chinese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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