A lightweight and small focal length drone-type long-wave zoom temperature measurement lens

Abstract

The invention discloses a light-weight and small focal length unmanned aerial vehicle type long-wave zoom temperature measuring lens. The optical system includes a first lens, a second lens, a third lens, a fourth lens and a Five lenses; the first lens is a front fixed lens group with positive power; the second lens is a zoom lens group with negative power; the third lens is a compensation lens group with positive power; the fourth lens is a The rear fixed group with negative power; the fifth lens is the focusing group with positive power. The above-mentioned lens is compatible with long-wave continuous zoom and temperature measurement functions in one; the overall weight is relatively small and can be observed at a long distance, which is suitable for aircraft with low load such as no heat engine; the internal correction of the optical system can effectively reduce stray light and electronic noise The impact on non-uniformity correction; the zoom and compensation optical mirror group adopts stress-free assembly, which can effectively reduce the influence of the surface shape of optical components on image quality.

Description

technical field [0001] The invention relates to a lightweight and small focal length unmanned aerial vehicle type long-wave zoom temperature measurement lens, which belongs to the field of long-wave zoom temperature measurement lenses. Background technique [0002] The long-wave continuous zoom lens is a commonly used surveillance lens in the current market. Its main purpose is to find the target with a large field of view, identify or identify the target with a small field of view, and use the thermal radiation effect to detect key areas throughout the day. , coastal defense monitoring, road traffic, maritime monitoring and other fields play an important role. [0003] The infrared temperature measuring lens mainly collects energy for the detector target. Different objects can obtain different energy values ​​according to the characteristics of different temperatures and different thermal radiation intensity. Through comparison and calibration, the actual temperature of the...

AI Technical Summary

Problems solved by technology

At present, the temperature measurement lenses on the market are all fixed-focus, and the position is basically fixed. In the case of temperature measurement in areas where some people are not suitable for entering or where the height is too high and the area is narrow, the use is limited.

In the prior art, there is no relevant report on the small focal length long-wave zoom temperature measurement lens technology used by drones

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