In recent decades, the pixel size of CMOS sensors has scaled down from ~10µm to ~2µm or even smaller. By decreasing the pixel size, higher spatial resolution can be achieved. At the same time, it brings into question the functionality of the microlenses sitting on top of each pixel. In this example, we investigate the performance of a CMOS

图中标明Pixel的红方块是CMOS中真正可以感光的区域，四周的T1、包括VSS，都是辅助用的晶体管或者接口的位置，对比蓝框和红框会发现，一个像素所在的区域中，很大一部分面积无法用来感光，这是巨大的浪费。 使用微透镜就可将射到图内红蓝框之间区域的光汇聚到像素这口深井中了。 加上透镜后，传感器每个像素的感光范围就增大了，如下： 3、微透镜对图像的影响： 微透镜起到收集光线的作用，而此micro lens在每个视场并不是位于pixel正上方的，如果lens的 CRA …

Micro-lenses in recent imaging chips have attained smaller and smaller sizes. The Samsung NX1 mirrorless system camera packs 28.2 million micro-lenses onto its CMOS imaging chip, one per photo-site, each with a side length of just 3.63 micrometer.

Feb 27, 2018 · Microlens arrays are the key component in the next generation of 3D imaging system, for it exhibits some good optical properties such as extremely large field of view angles, low aberration and distortion, high temporal resolution and infinite depth of field.

PowerPhotonic design and manufacture standard and custom micro lens arrays in 1D and 2D arrays. All products are manufactured out of high-grade fused silica and capable of both high efficiency and high power handling.

In order to reduce the optical crosstalk and improve the fill factor of CMOS image sensor, a microlens array has been designed and integrated with CMOS. The initial parameters of the microlens array have been calculated according to the structure of a CMOS.

Using the rigorous FMM/RCWA, we simulate a CMOS sensor with pixel size equal to or below 2µm, and the influence of diffraction effects at such a small scale on the performance of the device is investigated.

Oct 14, 2005 · For this study we used the optical modelling software ZEMAX (ray tracing) and modelled the CMOS image sensor by a simple optical system: micro lens, media ("stack") with particular optical properties and a photosensitive area.

Sep 1, 2005 · For this study we used the optical modelling software ZEMAX (ray tracing) and modelled the CMOS image sensor by a simple optical system: micro lens, media ("stack") with particular optical...

Feb 25, 2021 · Color filter dominates the color accuracy of sensor and micro-lens improves the sensitivity of sensor. The technologies are indispensable in obtaining the image sensing quality. Both could be applied in traditional Front Side Illumination (FSI) and more advanced Back Side Illumination (BSI.).