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    • 1. 发明授权
    • Fixed focal length optical lens architecture providing a customized depth of focus optical system
    • 固定焦距光学镜头架构提供定制的深度聚焦光学系统
    • US08559118B2
    • 2013-10-15
    • US12620936
    • 2009-11-18
    • Kai EngelhardtPavel ReshidkoEphraim GoldenbergGal Shabtay
    • Kai EngelhardtPavel ReshidkoEphraim GoldenbergGal Shabtay
    • G02B13/18G02B9/34
    • G02B9/60G02B13/004G02B27/0075
    • Providing for a fixed focus optical system exhibiting extended depth of field is provided herein. By way of example, a compact and fast optical system that yields an asymmetric modulation transfer function (MTF) is disclosed. In some aspects, the asymmetric MTF results in extended depth of field for near field objects. Such a response can be particularly beneficial for small handheld cameras or camera modules having high resolution. According to some disclosed aspects, the resolution can be about 8 mega pixels. Additionally, the optical system can comprise four lenses in one aspect and five lenses in another, while remaining below about 5.3 mm total track length (TTL) for the respective systems. In at least one application, the disclosed optical systems can be employed for a high resolution compact camera, for instance in conjunction with an electronic computing device, communication device, display device, surveillance equipment, or the like.
    • 本文提供了提供展现景深的固定聚焦光学系统。 作为示例,公开了产生非对称调制传递函数(MTF)的紧凑且快速的光学系统。 在一些方面,非对称MTF导致近场物体的景深扩大。 这样的响应对于具有高分辨率的小型手持相机或相机模块可能是特别有利的。 根据一些公开的方面,分辨率可以是大约8兆像素。 此外,光学系统可以包括一个方面中的四个透镜和另一个方面的五个透镜,而对于各个系统,光学系统的总轨道长度(TTL)保持在5.3mm以下。 在至少一个应用中,所公开的光学系统可以用于例如结合电子计算设备,通信设备,显示设备,监视设备等的高分辨率小型照相机。
    • 4. 发明申请
    • Image Capturing Device with Improved Image Quality
    • 具有提高图像质量的图像捕获设备
    • US20090225171A1
    • 2009-09-10
    • US12225591
    • 2006-03-29
    • Gal ShabtayEphraim Goldenberg
    • Gal ShabtayEphraim Goldenberg
    • H04N5/225H04N5/222H04N5/335H04N9/31
    • H04N5/2254G02B9/12G02B13/0035G02B13/009G02B27/0025H04N5/217
    • An image capturing device (1) is disclosed comprising an electronic image detector (17) having a detecting surface (15), an optical projection system (5) for projecting an object within a field of view onto the detecting surface (15), and, optionally, a computing unit (19) for manipulating electronic information obtained from the image detector (17), wherein, the projection system (5) is adapted to project the object in a distorted way such that, when compared with a standard lens system, the projected image is expanded in a center region of the field of view and is compressed in a border region of the field of view. Preferably, the projection system (5) is adapted such that its point spread function in the border region of the field of view has a full width at half maximum corresponding essentially to the size of corresponding pixels of the image detector (17).
    • 公开了一种图像拍摄装置(1),其包括具有检测表面(15)的电子图像检测器(17),用于将视场内的物体投影到检测表面(15)上的光学投影系统(5),以及 ,可选地,用于操纵从图像检测器(17)获得的电子信息的计算单元(19),其中,投影系统(5)适于以畸变的方式投影物体,使得当与标准透镜系统 投影图像在视场的中心区域扩展,并且在视场的边界区域被压缩。 优选地,投影系统(5)适于使得其在视场的边界区域中的点扩散函数具有基本上对应于图像检测器(17)的对应像素的尺寸的半高的全宽。