A kind of wide temperature infrared lens, its installation and adjustment tool and its installation and adjustment method

Abstract

The invention relates to a wide-temperature infrared lens, its assembly and adjustment tool and its assembly method, and belongs to the technical field of infrared lenses. There is a large gap of more than 1.5mm between each lens and the lens barrel in the infrared lens, which meets the requirements for use in a wide temperature range, and leaves room for installation and adjustment tools, and is easy to glue and bond Reliable; In addition, each lens is individually fixed with a full pressure ring and the thickened steel adjustment pad is used to adjust to meet the optical interval, avoiding the deflection of the lens and ensuring the image quality. The assembly and adjustment tool is simple in structure, easy to process and low in cost; the assembly and adjustment by using the assembly and adjustment tool can meet the coaxiality requirements of the lens and the lens barrel on the basis of ensuring a large gap between the lens and the lens barrel, And the operation of assembly and debugging is simple and convenient.

Description

technical field [0001] The invention relates to a wide-temperature infrared lens, a tool for assembling and adjusting the infrared lens and an assembling method thereof, belonging to the technical field of infrared lenses. Background technique [0002] With the rapid development of science and technology, the future war environment will become more and more complex, and the offensive and defensive confrontation will become more and more intense. Among various precision guidance systems, infrared guidance occupies an important position in the development of modern weapons and equipment because of its high guidance precision and strong anti-interference ability. The infrared lens as the core component has also become a key research object. [0003] At present, there are three main methods for infrared lens adjustment: [0004] (1) Assemble with concentric mounting and calibrating instruments. Although this method of assembly and adjustment is convenient and fast, the cost i...

AI Technical Summary

Problems solved by technology

Although this method of assembly and adjustment is simple in the later stage, it is complicated in the early stage. It requires precision machining of the metal ring on the outer ring of each lens, and the size and weight of the lens are relatively large. Nowadays, weapons and equipment are miniaturized and lightweight. Under the trend, it is greatly restricted;

[0006] (3) Traditional lens adjustment method

Traditional infrared lens structure such as figure 1 As shown, copper skin is usually inserted around each lens for assembly. Although the copper skin is small in size and light in weight, the random error is relatively large and it is not easy to operate; Adjusting pads and multiple copper foils or copper strips with different thicknesses meet the optical spacing of the optical system. The parallelism of the end faces has poor shape and position tolerances, and the cumulative error is relatively large, which is likely to cause the deflection of the lens and affect the imaging quality; this method is used When assembling the lens, in order to ensure the concentricity of the lens and the lens barrel, the gap between the two should be about 0.5mm. If the gap is small, it is difficult to apply glue, and the bonding is not reliable.

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