1460874641-f832691c-f965-4dce-8ede-078055ceeeae

There is provided an optical pickup apparatus which includes a light source that generates light irradiating an optical recording medium; and an objective lens that collects the light irradiated from the light source on a recording surface of the recording medium, which further includes a coupling lens arranged on an optical path between the light source and the objective lens. A feedback interface provides feedback in response to the first data set. Each belt drum is attached to one side of the frame body has a belt and spiral spring.