two-element lens

Annular Focus System of Laser Combined by a Spherical Lens and Two Mutually Complemented Axicons

一种新型激光环形聚焦系统的研究

Since the devise of the fisheye lens, the range of the application of it is more and more widely and the two important aspects of which are virtual tour and video surveillance.

鱼眼镜头出现以后，它的应用越发广泛，而虚拟漫游和视频监控是其中的两个方面。

The experimental results are given of the two kinds of compensation plates consiting of hologram plate and photoconductive thermoplastic plate for improving image quality of the Fresnel optical lens.

给出了“全息干版”和“光导热塑片”制备的两种“补偿板”对菲涅耳透镜进行象质改善的实验结果。

This paper presents a high-precision stereo camera calibration technique combined the improved two-step method with accurate control points, in which the lens distortion of a camera is modeled by a combination of radial distortion and tangential distortion.

给出了将改进的两步法与精确控制点相结合来精确校准立体像机的新技术，像机镜头畸变模型考虑了径向畸变和切向畸变。

By virtue of comparing two methods of zoom lens compensation? optical compensation and mechanical compensation, the former way is selected to achieve the zoom purpose.

通过对机械补偿和光学补偿法比较，选择光学补偿方法实现变焦目的。