论文部分内容阅读
本文以1(1/4)″彩色电视10倍变焦距物镜和1″工业电视6倍变焦距物镜为例,采用目前流行的变倍补偿方式,缩小高斯光学尺寸。以像差理论分析结构,在前后固定组分别分离胶合面,利用空气间隔的作用,有效地控制轴上高级球差和轴外宽光束的成像特性,避免结构的复杂化;降低变倍组胶合面的折射率差,改善短焦距位置的像散校正状况,减少畸变;并在补偿组引入近等折射率胶合面,控制高级像差。两个实例的结构尺寸简单紧凑,口径小,重量轻,而且成像质量显著提高,从而达到变焦距物镜小型化的目的。
In this paper, 1 (1/4) “color television 10x zoom lens and 1” industrial television 6x zoom lens as an example, using the current variable zoom compensation method to reduce the Gaussian optical size. Using aberration theory to analyze the structure, the gluing surfaces are separated in the fixed group and the air space is used to effectively control the imaging characteristics of the advanced spherical aberration and the off-axis wide-angle beam, so as to avoid the structural complication. Surface refractive index difference to improve the short focal length position of the astigmatism correction conditions to reduce distortion; and compensation group into the near refractive index bonding surface, the control of advanced aberrations. The structure of the two examples is simple and compact in structure size, small in caliber and light in weight, and the imaging quality is remarkably improved so as to achieve the objective of miniaturization of the objective lens in zooming.