A projection device for projecting images on a surface of the device, comprising:
- (a) an outer housing comprising a front translucent screen;
- (b) a projection module frame mounted on an inner surface of a rear panel of the outer housing, wherein the projection module frame comprises a first projection module frame member, and a second projection module frame member spaced apart from the first projection module frame member, wherein the first projection module frame member is in the form of an inner casing;
- (c) a projection roller frame supported by the projection module frame, wherein the projection roller frame comprises first and second spaced apart rollers rotatable respectively on two opposite cylindrical ends integrally formed on a lampshade, one of the two opposite cylindrical ends being coupled with the first projection module frame member, and another one of the two opposite cylindrical ends being coupled with the second projection module frame member;
- (d) a cylindrical projection film mounted between the first and second rollers;
- (e) a gear mechanism accommodated inside the inner casing for rotating the first and second rollers and in turn the cylindrical projection film;
- (f) a motor accommodated inside the inner casing for driving the gear mechanism;
- (g) an LED light source mounted inside the lampshade so that an image formed on the projection film can be projected on the front translucent screen by the light source;
- (h) a cylindrical member formed at a center of a surface of the first roller facing the first projection module frame member;
- (i) a plurality of switch actuators formed around an outer circumference of the cylindrical member;
- (j) a switch provided on a switch box formed on a surface of the first projection module frame member facing the first roller, the switch being connected with an integrated circuit, and actuatable by the switch actuators;
- (k) a pin having an enlarged head, the pin being slidably received in a sleeve formed on the surface of the first projection module frame member;
- (l) a spring mounted around the pin for biasing the enlarged head of the pin against the surface of the first roller;
- and
- (m) a plurality of recesses formed on the surface of the first roller around the cylindrical member, the recesses being engageable with the enlarged head of the pin;
- (n) wherein when the motor is started, the first roller rotates via the gear mechanism until the switch is actuated by one of the switch actuators, and when the switch is actuated, the motor is switched off, and wherein the enlarged head of the pin is caught and held by one of the recesses, thereby holding the projection film in a position where the image is projectable on the front translucent screen.