A temperature-measurable push-pull single-chip shutter structure for infrared thermal imager

Abstract

The invention relates to a temperature-measuring push-pull single-chip shutter structure for an infrared thermal imager, comprising a temperature-measuring chip, a shutter protection cover, blades, a solenoid valve, a solenoid valve control lead wire, a shift lever and a shutter shell. A focal plane window is provided on the protective cover and the shutter case, and a solenoid valve is installed on the shutter case, and the solenoid valve is connected to an external circuit board through a solenoid valve control lead wire, and the solenoid valve can drive the lever to reciprocate One end of the lever is connected to the valve stem of the solenoid valve, the other end is connected to the end of the blade, the blade can close or open the focal plane window, and the shutter protection cover is buckled with the shutter shell The temperature measuring chip is attached to the shutter protection cover, the structure is more compact and simple, the push-pull blade has better stability, and the temperature of the single blade is uniform. In addition, the temperature measurement chip is attached to the shutter protection cover to accurately read the blade. The temperature provides a reference for the temperature measurement function of the infrared thermal imager.

Description

technical field [0001] The invention relates to a single-chip shutter structure, in particular to a temperature-measurable push-pull single-chip shutter structure for an infrared thermal imager. Background technique [0002] The focal plane shutter structure of the present invention is mainly applicable to thermal imaging cameras. The thermal imaging camera uses infrared detectors and optical imaging objective lenses to receive infrared energy radiated by the target to reflect the distribution pattern on the photosensitive element of the infrared detector. In this way, an infrared thermal image is obtained, which corresponds to the heat distribution field on the surface of the object. In layman's terms, an infrared thermal imager converts the invisible infrared energy emitted by an object into a visible thermal image. In recent years, with the continuous development of infrared technology, various infrared products have higher and higher requirements for external dimensions...

AI Technical Summary

Problems solved by technology

These two stable states act on the solenoid valve 7, so that the valve core of the solenoid valve 7 faces two different directions, and the opening and closing of the shutter is realized by controlling the opening and closing of the blade 2 through the connecting rod connected thereto. Due to the different contact areas and areas between the blades and the structure of the shutter, the heat conduction is different, so the temperature of the blades is uneven, resulting in inaccurate correction and affecting the image quality of infrared imaging.

[0006] In addition, there is no temperature measuring chip on the shutter of the prior art, so it does not have the function of measuring the temperature of the target radiant energy

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