An experiment apparatus for a
light transmission thermal
lens effect in a non-uniform temperature field is characterized in that a base is provided with a transparent water tank in which water is arranged thereon, the right outside surface of the transparent water tank is provided with a coordinate paper, the front sidewall and the rear sidewall in the transparent water tank are provided with at least one
semiconductor cooler support equipped with a
semiconductor cooler, the front side surface of each
semiconductor cooler is a hot surface or a cold surface and is perpendicular to a horizontal plane, the semiconductor cooler support(s) and the semiconductor cooler(s) are immersed into the water, the distance from the upper surface of the semiconductor cooler to the water surface is at least 100mm, a
laser support equipped with a semiconductor
laser is arranged on the base at the left side outside the transparent water tank, a
laser beam which is emitted by the semiconductor laser and has a
divergence angle
ranging from 10 degrees to 20 degrees penetrates the left sidewall of the transparent water tank, then passes through the water between the semiconductor coolers at two sides, and is projected onto the coordinate paper to form a round
light spot. The experiment apparatus of the present invention is simple in structure, low in cost, simple and convenient in method, and good in intuition, thus the experiment apparatus is especially suitable for demonstrating an experiment in a laboratory and in class.