LENS CAP AND PROJECTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent the removable of the lens cap of a projector device from being forgotten. SOLUTION: The lens cap 11 is equipped with a cap main body 12 and an optical means 14. The main body 12 is formed of polycarbonate and provided with a light transmitting part 18 at its center. The optical means 14 is attached to the light transmitting part 18. The optical means 14 is equipped with a lens means 21 and a display means 22. When the projector device 1 is actuated in a state where the lens cap 11 is still attached to the device 1, a character on the display means 22 is enlarged and projected to a screen 6 by the lens means 21, then the removal of the lens cap 11 is prevented from being forgotten.