Ultra-small imaging system for cell phone camera using birefringent lenses

Abstract

In this research, an ultra-small ima birefringent lenses was presented. This syste the next generation mobile phone camera wit of smaller pixel size. The system thickne approximately 1.7mm (from the first lens' fr image sensor) by employing one aspheric lens lens made of birefringent uniaxial crystal, wh optical low pass filters (OLPFs). In conve however, the OLPFs are stacked up and ass with optical lenses, which makes it difficult thickness. Quantitative and visual results of or ordinary ray separation on the image plane d the birefringent lenses system is able to cut of frequencies than the Nyquist frequency of image sensor.I.

Aspheric single-element lens using birefringent material for miniaturized imaging system

“…In our previous work [2], we designed and modeled an imaging system using double birefringent lenses made of crystalline quartz. This system reduces aliasing artifacts horizontally by introducing the first quartz lens whose optical axis lies in the XZ plane (horizontal plane) and forms an angle of 45 degrees with respect to (w.r.t for simplicity in the following paragraphs) the lens axis.…”