Modulation transfer function testing device

• Main Authors: LIU BAOSHAN, PENG XU, LI XIAOXUAN, LIU YI, AI LIFU, DONG LICHAO, JIN CHENGBIN, ZHAO DONGFENG, ZHU CHUNLIN
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2021
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a modulation transfer function testing device. The modulation transfer function testing device comprises a light source, a sample plate, a first optical element, a second optical element and an imaging member. The sample plate is provided with an imaging pattern. The first optical element is used for separating light rays of different wavebands, and the second optical element is used for adjusting the emergent angle of the light rays. The imaging pattern, the first optical element, the second optical element and the imaging member are sequentially arranged on the light path of the light source, and a piece to be tested is placed on the light path behind the sample plate and in front of the first optical element. According to the technical scheme, the first optical element can separate composite light into monochromatic light of different wavebands, then the second optical element adjusts the emergent angle of the light, so that projections of different monochromatic light are formed on