The invention provides a high-stability miniaturized
infrared thermal imager
field of view switching mechanism. The high-stability miniaturized
infrared thermal imager
field of view switching mechanism comprises an
infrared base, a
field of view mirror frame, a field lens group, a
cut-out separation blade, a light rod bracket, a driven slot, a motor guide rod, a motor, a light rod, a light rod fastening pin, a bearing fastening pin, a light rod bearing, a vertical
gasket, a limiting screw, an adsorption screw, a slot bearing, a horizontal
gasket, an adsorption
magnet, a limiting block, a motorpin and a flat key. According to the field of view switching mechanism provided by the invention, the motor drives the field of view mirror frame to rotate along the light rod for field of view switching. A plurality of groups of switching mechanisms are arranged in one x-
ray machine system to realize switching among a plurality of fields of view. Through the vertical
gasket, the horizontal gasket, the limiting screw and the limiting block, rapid high-precision adjustment of the switching mechanism is realized. High stability of the switching mechanism is ensured through the light rod fastening pin, the bearing fastening pin, the adsorption screw and the adsorption
magnet. The problems of large occupied space, low positioning precision, low stability, difficulty in adjusting precision, incapability of separately adjusting the precisions of a plurality of fields of view and the like in a conventional field of view switching mechanism are solved.