A video display system includes a light source configured to generate light and a substrate having a plurality of pixels deposited on a first side of the substrate. Each of the pixels is formed from a plurality of photo-luminescent dyes, and the light source is configured to project light onto the first side of the substrate to illuminate at least a subset of the photo-luminescent dyes in a raster pattern to generate an image. In another embodiment omitting the substrate, the photo-luminescent dyes forming the pixels are deposited directly onto a screen.

A bracket includes a bracket body and an imaging module. The imaging module includes a first light source, a first pattern plate, a second light source, a second pattern plate and an imaging screen. The first light source projects a first illumination light. The first pattern plate having a first transmissive pattern is located on an optical path of the first illumination light, such that the first illumination light passing through the first transmissive pattern becomes a first pattern light. The second light source projects a second illumination light. The second pattern plate having a second transmissive pattern is located on an optical path of the second illumination light, such that the second illumination light passing through the second transmissive pattern becomes a second pattern light. The imaging screen receives the projection of the first and second pattern light.

The present invention relates to a snowflake projection lamp, including a housing, a concatemer optical lens arranged at the front end of the housing, a main control board and a projection component arranged in the housing, and a rotating shaft component connected to the lower end of the housing, where the front end of the housing is provided with an opening, the inner side of the opening is provided with a first surrounding wall, the concatemer optical lens includes a mounting base and a lens group, a first groove is internally provided with a sealing ring, and the concatemer optical lens is pressed on the first surrounding wall of the housing through the sealing ring; Lamplight of a high-brightness light source component passes through a film driven by a motor component to project multiple dynamic spots with different sizes and snowflake patterns in a designated region.

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 projecting apparatus and a projecting method, relates to the field of projecting technologies. The projecting apparatus includes: a light source (1), a projection film (2) and a lens (3), wherein the projection film (2) and the lens (3) are both located in a light path of the light source (1), a focal length of the lens (3) is greater than 0, and a positional relationship between the light source (1) and the lens (3) satisfies a formula: $0\le E\le {\left(\frac{216}{D}\right)}^{0.8},$
wherein E is a distance between the light source and the lens in centimeters; D is the focal length of the lens in centimeters, which solves the technical problem of high costs of 3D protection in the prior art, and can project a pattern on the projection film into a three-dimensional stereo image.

The invention provides a projection apparatus configured to be disposed on a vehicle door, and a control method of the projection apparatus. The projection apparatus includes an illumination source, a projection display apparatus and a controller. The illumination source is configured to provide an illumination beam. The projection display apparatus is disposed on a transmission path of the illumination beam, and is configured to convert the illumination beam into a projection beam. The controller is coupled to the projection display apparatus. The controller determines whether the vehicle door is a first vehicle door or a second vehicle door according to an opening operation of the vehicle door, and correspondingly causes the projection beam to display an image.

A puddle lamp including a light source composed of a single light emitting body, a lens set, a projection film with a fixed image and a projection lens is provided. The lens set is disposed at a light path downstream side of the light source. The projection film is disposed at a light path downstream side of the lens set. The lens is disposed at a light path downstream side of the projection film. An optical axis of the light source is substantially parallel to an optical axis of the lens set, and an optical axis of the projection lens is not perpendicular to an image plane of the puddle lamp. Furthermore, another puddle lamp is also provided.

A projection toy includes a top housing. A bottom housing is fixedly mounted at a top end of the top housing. A projection mechanism is fixedly mounted between the top housing and the bottom housing. A light-emitting diode (LED) lamp panel is fixedly mounted on one side of the projection mechanism between the top housing and the bottom housing. An end, away from the LED lamp panel, of the projection mechanism is clamped in a limiting enclosure. The limiting enclosure is fixedly mounted at one end of a first cover. A second cover is fixedly connected to the first cover. A decorative cover is fixedly mounted on the second cover. The first cover is fixedly mounted at one end of the top housing and one end of the bottom housing on a side away from the decorative cover.

A projection toy includes a top housing. A bottom housing is fixedly mounted at a top end of the top housing. A projection mechanism is fixedly mounted between the top housing and the bottom housing. A light-emitting diode (LED) lamp panel is fixedly mounted on one side of the projection mechanism between the top housing and the bottom housing. An end, away from the LED lamp panel, of the projection mechanism is clamped in a limiting enclosure. The limiting enclosure is fixedly mounted at one end of a first cover. A second cover is fixedly connected to the first cover. A decorative cover is fixedly mounted on the second cover. The first cover is fixedly mounted at one end of the top housing and one end of the bottom housing on a side away from the decorative cover.

A structured light projector includes a light source configured to emit light, a structured light pattern mask configured to receive the light emitted by the light source and including a first region configured to generate a first structured light having a first polarization and a second region configured to generate a second structured light having a second polarization that is different from the first polarization, and a polarization multiplexing deflector configured to deflect the first structured light and the second structured light generated by the structured light pattern mask, to different directions, respectively.