Abstract: Disclosed are a virtual golf system, a virtual golf introduction image generation method, and a virtual golf player information calculation method capable of providing a separate introduction image showing two or more users so as to be comparable to each other through record information of a virtual golf game of each of a plurality of users who use the virtual golf system before the plurality of users access the system in order to play the virtual golf game, whereby it is possible to induce users' record competition in the virtual golf game and to provide the users with immersiveness and interest in the game.

Abstract: There is provided a microscope apparatus and method for calibrating the position of a light source according to an embodiment of the present disclosure. A microscope apparatus according to an embodiment of the present disclosure includes: a light source unit configured to radiate light onto an subject and including a light emitting element array having a plurality of light emitting elements; an optical unit disposed in parallel with the subject and configured to form enlarged images of the subject receiving the radiated light; an image sensor configured to generate enlarged pictures of the subject based on the enlarged images formed through the optical unit; and a processor operably connected with the light source unit, the optical unit, and the image sensor, and calibrating a position of the light source unit based on a plurality of images generated by the image sensor.