| 摘要 |
PROBLEM TO BE SOLVED: To enable a user to play a game with the naked eyes by calculating focus adjusting data to determine the focus suitable in viewing the game screen image with the naked eyes and giving a focus adjusting means for the position relation based on the focus adjusting data against the visibility adjusting function to the game machine. SOLUTION: When a player plays on a game machine 1, for instance a shooting game, an IC card storing visibility data is inserted into the IC card inlet of an electronic gun at first, and then data of the visibility and the amount of money are read out from the IC memory part 3 the data are transmitted to a control means 5, and then the visibility data are transmitted to a focus adjusting means 6 to be compared with normal visibility data. The focus adjusting data are calculated by a visibility adjusting function 7 on numerical data how much correction is further required for viewing the screen image by naked eyes. The focus position of the visibility adjusting means 7 is moved to adjust the focus so as to enable the screen image to be viewed by the naked eyes. |
