The present disclosure discloses a projection lamp. The projection lamp includes a light-emitting assembly including at least one first non-coherent light source, a light-reflection medium, a first condensing lens, a driving device, a driving gear, and a driven gear. An inner wall surface of the light-reflection medium is formed by mutually connecting a plurality of irregular light reflection surfaces; the first non-coherent light source is arranged in the light-reflection medium; the first condensing lens is arranged above the light-reflection medium; the driving gear is connected to the driving device; and the driven gear is arranged on the light-reflection medium and is engaged with the driving gear to drive the light-reflection medium to rotate. The technical solution of the present disclosure effectively improves the diversity of the light effect of the projection lamp.

The present disclosure discloses a projection lamp. The projection lamp includes a light-emitting assembly including at least one first non-coherent light source, a light-reflection medium, a first condensing lens, a driving device, a driving gear, and a driven gear. An inner wall surface of the light-reflection medium is formed by mutually connecting a plurality of irregular light reflection surfaces; the first non-coherent light source is arranged in the light-reflection medium; the first condensing lens is arranged above the light-reflection medium; the driving gear is connected to the driving device; and the driven gear is arranged on the light-reflection medium and is engaged with the driving gear to drive the light-reflection medium to rotate. The technical solution of the present disclosure effectively improves the diversity of the light effect of the projection lamp.

A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.

A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.

A dynamic projection light includes an end to end long strip of film, a film guiding box, a first lens support and a second lens support which are arranged on both sides of the film guiding box, and a driving device provided with one or more touch parts. The film guiding box defines a guiding crack through which the film is capable of passing and being guided, one or more through holes and one or more insertion holes communicating with the guiding crack. The one or more touch parts are capable of extending into the one or more insertion holes to contact with the film so that the driving device can drive the film to move in the film guiding box, enabling patterns on the film to be projected in sequence.

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.