EVALUATION APPARATUS AND METHOD OF OPTICAL PARTS

An evaluation apparatus of optical parts has a holder having a frame which can hold a lens fixedly and another lens movably, a chart having a first transmission hole group and a second transmission hole group arranged on circumferences of concentric circles, a light source which irradiates the chart with a luminous flux, a CCD camera for picking up an image of the luminous flux transmitted through the first and second transmission hole groups, a processor, and a driving unit. By using a result picked up by the CCD camera, the processor computes coordinates of a center of each circle, on a circumference of which the luminous flux is imaged, and then it calculates an amount movement for the movably held lens by computing a distance between the respective centers of the circles. The driving unit moves the lens on the basis of this calculated amount of movement.