A projector has a body, a rotating device, a projection device, and a supporting device. The body has a lower housing, an upper housing, and an operation chamber. The rotating device is mounted in the operation chamber, is located in the upper housing, and has a driving device, a rotating axle, a power supply circuit board, and a film base. The projection device is mounted in the operation chamber of the body and has a light unit, a Fresnel lens, a film holder, and a lens assembly. The supporting device is mounted on a bottom of the lower housing.

A suspended surface assembly is provided having a trainable surface support element, a spindle component configured for training of the trainable surface support element therearound, a take-up action module configured to drivingly rotate the spindle component to thereby effect winding of the trainable surface support element onto the spindle component or to effect unwinding of the trainable surface support element from a partially or fully wound-up condition, and a lift complex for adjusting the vertical position of the trainable surface support element and the spindle component, the lift complex including a motive power element operable to both drivingly rotate the spindle component and to drivingly raise and lower the trainable surface support element and the spindle component. A method for operating the suspended surface assembly is also provided.

A suspended surface assembly is provided having a trainable surface support element, a spindle component configured for training of the trainable surface support element therearound, a take-up action module configured to drivingly rotate the spindle component to thereby effect winding of the trainable surface support element onto the spindle component or to effect unwinding of the trainable surface support element from a partially or fully wound-up condition, and a lift complex for adjusting the vertical position of the trainable surface support element and the spindle component, the lift complex including a motive power element operable to both drivingly rotate the spindle component and to drivingly raise and lower the trainable surface support element and the spindle component. A method for operating the suspended surface assembly is also provided.

A projector includes a plurality of light source sections, a light modulation device, and a drive section. The plurality of light source sections includes a first light source section and a second light source section different from each other in wavelength of emitted light. In a case of varying brightness of light emission of the first light source section and the second light source section, the drive section is configured to determine first light emission information with respect to light emission of the first light source section and second light emission information with respect to light emission of the second light source section, and then, at a predetermined timing, adjust the light emission of the first light source section based on the first light emission information and adjust the light emission of the second light source section based on the second light emission information.

A projector includes a plurality of light source sections, a light modulation device, and a drive section. The plurality of light source sections includes a first light source section and a second light source section different from each other in wavelength of emitted light. In a case of varying brightness of light emission of the first light source section and the second light source section, the drive section is configured to determine first light emission information with respect to light emission of the first light source section and second light emission information with respect to light emission of the second light source section, and then, at a predetermined timing, adjust the light emission of the first light source section based on the first light emission information and adjust the light emission of the second light source section based on the second light emission information.