9results about "Slide projectors" patented technology

The present invention provides a film disc for a story projector, configured to be inserted into a story projector main body to achieve synchronous playback of images and audio. The film disc includes a housing, a rotating disc, and an audio module. The housing is provided with a projection hole and a driving hole. The rotating disc is rotatably installed in the housing and is provided with a film sheet corresponding to the projection hole, and one side of the rotating disc is provided with a transmission member configured to mesh with a driving assembly of the story projector main body. The audio module includes an audio board and a storage unit, the storage unit stores audio data corresponding to an image on the film sheet, and the audio board is installed on the housing for data interaction with the main body.

The invention relates to a micro-lens array projection device (1) having at least one light source (2), a field lens array (3), a projection lens array (4) and a pattern template arranged in a light beam path (5) coming from the light source (2) between the field lens array (3) and projection lens array (4) in order to generate a light pattern (6) from the light emitted from the light source (2). The micro-lens array projection device according to the invention is characterised in that the pattern template is formed from a micro-slide array (7) which comprises at least two micro-slides (8), wherein at least one micro-slide (8) can be moved by means of at least one actuator (9) in a plane (E) perpendicular to an optical axis (OA) between the field lens array (3) and the projection lens array (4).

A doorbell system may project an illumination on a surface. The doorbell may include a housing, a button, a camera, a microphone, a speaker, a motion detector, and a light source. In some embodiments, the doorbell includes at least one lens coupled to a bottom surface of the housing adjacent the light source. The at least one lens may be configured to allow light from the light source to pass through the at least one lens such that when the electronic doorbell is attached to a building the light source projects an illumination onto a ground surface in front of the doorbell.

Disclosed is a novel plug-in film structure, including a rotary motor. A rotating shaft of the rotary motor is provided with rotary teeth. The novel plug-in film structure further includes a gear mechanism and a film mechanism. One end of the gear mechanism is meshed with the rotary teeth, and the film mechanism is magnetically connected to the other end of the gear mechanism. When the rotary motor rotates, a film sheet in the film mechanism magnetically connected to the gear mechanism rotates synchronously. The present disclosure has advantages of simple structure and convenient use. A rotary column with a magnetic block is provided, which can be quickly connected to a magnetic assembly. In addition, the magnetic connection structure enables a film assembly to rotate stably. Moreover, the entire magnetic assembly can be separated from a tray, so that film sheets with different images can be quickly replaced.

The utility model discloses a story projector, which is used for projecting a pattern on a film to a light and shadow bearing surface for displaying, the story projector comprises a body and a film disc bearing the film, the body is provided with an insertion hole and a projection hole, and the film disc is movably inserted in the insertion hole; the film disc comprises a shell and a rotating disc rotationally arranged in the shell, and the film is arranged on the rotating disc and corresponds to the position of the projection hole; the body comprises an optical assembly and a driving assembly which are arranged in the body, the optical assembly emits light towards the projection hole, and the film is located between the optical assembly and the projection hole; the driving assembly comprises a driving motor and a driving gear arranged on a driving shaft of the driving motor, a driven gear meshed with the driving gear is arranged on one side of the rotating disc, and the driving gear and the driven gear are face gears. According to the technical scheme of the utility model, the practicability of the story projector is effectively improved.

A road surface delineation device (10) includes a plurality of light sources (12) capable of being individually lit up; a mask (18) having a plurality of transmission windows (20) respectively illuminated by corresponding light sources (12) among the plurality of light sources (12); a partition (22) dividing a space between the plurality of light sources (12) and the mask (18) into a plurality of sections each having a mutually corresponding light source (12) and transmission window (20); and a common projection lens (16) projecting light respectively from the plurality of light sources (12) through the corresponding transmission windows (20) to a road surface.

This disclosure relates to a logo light module, an exterior rearview assembly, and a motor vehicle. The disclosure relates to a logo light module (1) for an exterior rearview assembly (400) of a motor vehicle (500), comprising a stack of projection optical lenses (3) disposed within a stack holding portion (112) of a housing (10) enclosed by a printed circuit board (12), wherein the projection optical lens stack (3) includes a logo plate or image substrate (18) between at least one first lens (16) and at least one second lens (20), wherein the at least one first lens (16) is disposed between the printed circuit board (12) and the logo plate or image substrate (18), and the at least one second lens (20) is disposed between the logo plate or image substrate (18) and a light emitting portion (110) of the housing (10). Furthermore, this disclosure also relates to an exterior rearview assembly having such a logo light module and a motor vehicle having such an exterior rearview assembly.

The invention relates to a light module (2) comprising a light source (6); a disc (8) having a plurality of slides (8.1) capable of being arranged, selectively, by rotation of the disc about an axis of rotation opposite the light source (6); an optical projection device (10) configured to project an image of the slide (8.1) opposite said light source (6); wherein the optical projection device (10) is fixedly arranged opposite the light source (6); and the disc (8) bears on an adjustable stop (18) by an elastic force along the axis of rotation.

The utility model provides a projection device. The projection device comprises a main body; the cover body is movably connected with the main body; the light-emitting assembly can emit a light signal; the film assembly is arranged on a transmission path of the light emitting signal; the imaging assembly is used for imaging an optical signal penetrating through the film assembly, and when the cover body covers the main body, the imaging assembly is arranged on the side, away from the light-emitting assembly, of the film assembly; wherein the light-emitting assembly and the film assembly are installed on the main body, and the imaging assembly is installed on the cover body. The use convenience of the projection device can be improved.