Device and method capable of measuring influence of ultraviolet radiation and visible light on photosynthetic characteristics of algae

A device capable of measuring the influence of ultraviolet radiation and visible light on photosynthetic characteristics of algae comprises a camera obscura, an upper lamp source and a lower lamp source, an upper cavity and a lower cavity are formed in the camera obscura, the upper lamp source is arranged above the camera obscura and used for conducting ultraviolet radiation, and the lower lamp source is arranged in the lower cavity and used for conducting visible light radiation. A plurality of light-transmitting bottles are further placed in the upper cavity and used for arranging algae, an ultraviolet radiation inlet is formed in the top of the upper cavity, a cut-off type optical filter only transmitting ultraviolet rays is installed at the ultraviolet radiation inlet, and a visible light radiation inlet is formed in the bottom of the lower cavity. A plurality of layers of shading nets and a cut-off type optical filter only transmitting visible light are installed at the visible light radiation inlet, the