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首页> 外文会议>Optical system alignment, tolerancing, and verification VIII >Designing null screens type sub-structured Ronchi to test a fast plano-convex aspheric lens
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Designing null screens type sub-structured Ronchi to test a fast plano-convex aspheric lens

机译：设计零屏幕类型的子结构Ronchi以测试快速平凸非球面透镜

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In order to evaluate either qualitative or quantitatively the shape of fast plano-convex aspheric lenses, a method to design null screens type sub-structured Ronchi is proposed. The null screens are formed with nonuniform curves which allows us to have both thin and thick monochrome strips between contiguous curves. The screens are printed on a light transmission modulator and placed in front of the lens under test, they are illuminated with a collimated monochromatic beam propagating along the optical axis, in such a way that through the process of refraction will form a uniform straight fringes pattern which are recorded at a predefined plane of detection, finally processing its image recorded we could be able to get a quantitative evaluation of the lens under test. The designs of these null screens are based on the equations of the caustic surface produced by refraction. The null screens can be printed in gray levels on a light transmission modulator depending on the applied voltage on it. A preliminary test for a fast plano-convex aspheric lens with F/# = 0.8 is presented in this work. This method also could be applied to alignment of optical systems.
机译：为了定性或定量地评价快速平凸非球面透镜的形状，提出了一种设计空屏型亚结构朗奇的方法。空屏幕是由不均匀的曲线形成的，这使我们可以在连续曲线之间同时包含细条和粗条单色条。屏幕印在光透射调制器上，并置于被测透镜的前面，并用沿光轴传播的准直单色光束照射，从而使整个折射过程形成均匀的直条纹图案。将其记录在预定的检测平面上，最后对其记录的图像进行处理，我们便可以对被测镜片进行定量评估。这些零位屏幕的设计基于折射产生的苛性表面方程。根据在其上施加的电压，可以在光透射调制器上以灰度级打印空屏幕。本文介绍了F /＃= 0.8的快速平凸非球面透镜的初步测试。该方法也可以应用于光学系统的对准。

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