Design of miniaturization for fog transmission zoom lens
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摘要: 根据探测设备电视通道要求实现普通彩色和透雾黑白两种模式观察并小型化的特点，运用最速变焦路线凸轮曲线的设计及凸轮曲线平滑性优化的方法实现了小型化设计；采用可见光加近红外波段并在全波段范围内进行像质评价的方法，即根据外形尺寸计算中所求出的每个透镜组的光焦度和通光口径，参考现有结构，选定每组透镜的结构形式，缩放成要求的焦距以后组合成全系统进行像差校正，这样既可实现普通彩色和透雾黑白两种模式的观察，又保证了系统的齐焦性。系统通过了像质检测、实景成像的验证及环境应力筛选及环境例行试验的考查，并成功地用于探测设备。
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关键词:
- 透雾连续变焦光学系统 /
- 最速变焦路线 /
- 凸轮曲线 /
- 像质
Abstract: The minimized design was realized by using the design of fast zooming route cam curve and the method of cam curve flatness optimization according to the requirement of the detection device TV channel for realizing the conventional color mode and fog transparent black/white mode. In the design, the visible light plus near infrared band and a method of image quality evaluation in the range of the whole band was applied to meet the needs of observation in the conventional color mode and fog transmission black/white mode on the premise of avoiding the focal shift of zoom. The system was passed through MTF test, imaging verification, environment stress screening and environment routine experiment, and was equipped to the detection device successfully.-
Keywords:
- fog transmission zoom optical system /
- fast zoom route /
- cam curve /
- image quality
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