Digital aerial survey full-color camera lens

Abstract

A digital aerial surveying colorful camera lens is characterized by comprising a front set of lenses, a light diaphragm and a rear set of lenses, and all lenses are deposited on the same one optical axis in order; the front set of lenses are composed of a first spherical shell lens, a second spherical shell lens, a third spherical shell lens, a first double cemented lens and a double convex lens; the rear set of lenses are composed of a triple cemented lens, a second double cemented lens and a fourth spherical shell lens. The digital aerial surveying colorful camera lens of the invention solves the problem that the high resolution and the low distortion are difficult to implement under the large visual field. When the visual field is 87. 8 degrees, on the 55 line pair, MTF>=0. 4, the full visual field distortion is less than 0. 01, and the structure is compact, the miniaturisation and the light weighing can be implemented.

Description

technical field [0001] The invention relates to a digital aerial survey camera accessory, in particular to a digital aerial survey color camera lens. Background technique [0002] In the current aerial survey, the traditional aerial film photography is still dominant, but aerial film photography has many shortcomings: (1) The printing process consumes a lot of time and manpower, and the film storage and maintenance are troublesome; (2) Scanning must be done first Only input can be processed by computer, which is time-consuming, difficult to analyze the data in time, and may damage the film; (3) the photosensitive layer of the film and its spectral characteristics limit its ability to obtain information; (4) the quality of the captured image and the use of Whether the exposure parameters are appropriate cannot be directly confirmed and checked in real time; (5) The processing time period is long and the processing process is complicated. [0003] Aiming at the shortcomings o...

AI Technical Summary

Problems solved by technology

[0002] In the current aerial survey, the traditional aerial film photography still dominates, but aerial film photography has many shortcomings: (1) The printing process consumes a lot of time and manpower, and the film storage and maintenance are troublesome; (2) Scanning must be done first Only input can be processed by computer, which is time-consuming, difficult to analyze the data in time, and may damage the film; (3) the photosensitive layer of the film and its spectral characteristics limit its ability to obtain information; (4) the quality of the captured image and the use of Whether the exposure parameters are appropriate cannot be directly confirmed and checked in real time; (5) The processing time is long and the processing process is complicated

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