Parallax on optical seekers or equal to facilitate. Superposed image - a range finder with combined viewfinder with reflected into the path of rays image limit frame.

• 1. A range finder with a vertical base and with two vertically arranged, is not equal to long telescopes are used with broken optical axes, by means of which two images of the observed object to be considered [P] . 德国专利： DE319454C . 1920-03-10

  机译： 带有垂直基座和两个垂直排列的测距仪，不等于长望远镜，光轴断裂，通过该测距仪可以将观察对象的两个图像考虑在内

• 2. The basis of a range finder with objective of different focal length associated image limit frame. [P] . 德国专利： DE1771368U . 1958-07-31

  机译： 物镜的基础是具有不同焦距的物镜相关的图像极限框。

• 3. With a seeker of a combined superposed image by point of view - rangefinder. [P] . 德国专利： DE1696298U . 1955-04-07

  机译： 借助寻点器，可以从角度合成组合的图像-测距仪。

• 1. Three-dimensional imaging and scanning range finders using the parallax principle [C] . Soneira, R.M. . 1988
• 2. Applications of the Integrated High-Performance CMOS Image Sensor to Range Finders — from Optical Triangulation to the Automotive Field [O] . Jih-Huah Wu, Cheng-Chung Pen, Joe-Air Jiang 2008
• 3. Applications of the Integrated High-Performance CMOS Image Sensor to Range Finders — from Optical Triangulation to the Automotive Field [O] . Jih-huah Wu, Cheng-chung Pen, Joe-air Jiang 2013
• 4. A Lens Compensator for Optical Systems with Double Images, Such as Range Finders [R] . Greym, I. A. 1965