21results about "Picture changing apparatus" patented technology

The present invention discloses a story projector, used for projecting patterns on a film onto a light-shadow projection surface for display. The story projector includes: a body and a film disc that carries the film, where the body is provided with an insertion slot and a projection aperture, and the film disc is movably inserted into the insertion slot; and the film disc includes a housing and a rotating disc that is rotatably installed within the housing, with the film positioned on the rotating disc and disposed corresponding to the projection aperture. The body includes an optical assembly and a drive assembly located within the body, where the optical assembly emits light towards the projection aperture, and the film is located between the optical assembly and the projection aperture. The technical solutions of the present invention effectively improves the practicality of the story projector.

A double image projection lamp has a housing, a first and a second projecting assembly in the housing, a driver, a light shielding element, and a driven component. The second projecting assembly has a shell body pivotally connected to the housing, connected to the driver, and having a sliding groove between a projecting end of the shell body and a light emitting unit of the second projecting assembly. The light shielding element is disposed in the sliding groove. When the driver drives the shell body to pivot, the driven component is driven by the shell body and drives the light shielding element to move along the sliding groove so as to allow light emitted from the light emitting unit to be shielded by the shielding element or travel to the projecting end, which provides fade-in and fade-out visual effects when two projected images move relatively.

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.

The utility model discloses a square circulating image changing structure in the field of projection sheets, which comprises a slide glass plate, a plurality of rows of via holes are arranged on the slide glass plate at equal intervals, film projection cards are arranged on the slide glass plate and positioned in the via holes, an image carrying plate used for bearing and mounting the slide glass plate is arranged on the periphery of the slide glass plate, and the image carrying plate is arranged on the slide glass plate. A plurality of fixing columns are fixedly connected to the upper portion of the image carrying plate, and a long-strip-shaped sliding groove is formed in the position, located on one side of the fixing columns, of the image carrying plate. According to the utility model, the tooth-shaped wheel can be driven to rotate by rotating the rotating shaft, and the tooth-shaped wheel is meshed with the fixed column, so that the image carrying plate can be driven to move under the guidance of the dovetail guide groove on the image changing sliding plate, and the image changing operation is realized; round rotation is changed into movement according to a fixed track, and images can be arranged in a square or other-shaped track, so that higher material utilization rate is realized.

The utility model discloses a projection lamp which comprises a lamp body and a lamp cover. The projection device comprises a first shell, a light-emitting assembly arranged in the first shell and a film tray used for installing a film, the first shell is provided with an insertion hole used for installing the film tray, and the film tray is inserted into the insertion hole so that the film can be located in the irradiation direction of the light-emitting assembly; and a base, the projection device is installed on the base, the base is provided with a storage groove, and the storage groove is used for storing the film tray. According to the technical scheme, the film tray can be conveniently stored through the containing groove, the use convenience and practicability of the projection lamp are improved, and the projection lamp is suitable for various projection application scenes.

The utility model relates to a projection sheet support and a projection device, the projection sheet support comprises a mounting piece, an image assembly and a limiting piece, the mounting piece comprises a main body part and a supporting part which are connected, the main body part is provided with a mounting through hole, the supporting part is arranged at one end of the mounting through hole, and the supporting part extends towards the axis of the mounting through hole relative to the main body part; a first light-transmitting hole is defined by the supporting part, and the first light-transmitting hole is communicated with the mounting through hole; the image assembly is embedded in the mounting through hole and abuts against the supporting part, and the image assembly is exposed through the first light hole; the limiting piece is arranged in the mounting through hole, and the limiting piece and the supporting part are located on the two opposite sides of the image assembly respectively; the limiting piece is provided with two free ends which are respectively propped against the inner wall of the main body part; the two free ends can be close to each other under the action of external force, so that the limiting piece is elastically deformed to release the clamping relation between the limiting piece and the main body part. According to the embodiment, the limiting piece and the mounting piece are simple in structure and convenient to disassemble or assemble, and the efficiency of replacing the image assembly is improved.

The invention belongs to the technical field of safety warning, and particularly relates to a projection lamp system capable of automatically switching patterns and a working method. The projection lamp system comprises an optical projection display module, a heat dissipation module, an intelligent detection module and a mechanical transmission control module; the optical projection display module comprises a highlight lamp sheet, a projection lamp sheet frame and a lens assembly, and a plurality of projection lamp sheets corresponding to different projection modes are arranged on the projection lamp sheet frame and are switched and fixed through a color changing mechanism; the heat dissipation module comprises a composite heat dissipation structure integrated around the highlight lamp sheet; the intelligent detection module is used for monitoring a target passing through the dynamic detection area in real time; the mechanical transmission control module is used for driving the color changing mechanism to switch the projection mode. According to the multifunctional projection lamp system, pedestrians and transverse passing vehicles can be sensed in real time, warning projection patterns and warnings are automatically switched, the pedestrians and the vehicles are reminded to pay attention to safety in a projection mode, and potential safety hazards of pedestrian path intersections in a production factory are effectively reduced.

This utility model discloses a projection lamp, comprising: a pull-out positioning component, on both sides of which are respectively provided an imaging lens module and an illumination lens module, and a light source is provided on the side of the illumination lens module away from the pull-out positioning component; a pull-out plate, which is plugged into the pull-out positioning component, and a gear disk is rotatably provided on the pull-out plate, with a projection disk provided on the gear disk; and a gear power device, wherein when the pull-out plate is inserted into the pull-out positioning component, the output wheel of the gear power device meshes with the gear disk, and the output wheel of the gear power device is located on the oblique side of the gear disk. This utility model can effectively ensure proper meshing and has a flexible layout, thus allowing for more choices in product design.

The landscape lamp with the adjustable projection effect comprises a projection disc, a projection lamp body and an adjusting assembly, a plurality of containing grooves are evenly formed in the side wall of the projection disc along the circumference, and projection pictures are contained in the containing grooves; the projection lamp is located on the side, close to the adjusting assembly, of the projection disc and corresponds to the containing groove. The output end of the adjusting assembly is fixedly connected with the projection disc, and the input end of the adjusting assembly is fixedly connected with the power output end of the driving assembly. The projection device has the advantages that a plurality of projection pictures are loaded on the projection disc, the adjustable function of the projection effect is achieved, fine control over switching of the projection pictures is achieved through the adjusting assembly, the stable switching effect is achieved, meanwhile, the projection pictures are combined with the projection lamp, reliability is higher, and the projection effect is better. Only the driving assembly is used for driving the projection disc, and the structure is simple and durable.

The utility model discloses a multipurpose projector for children. The multipurpose projector comprises a main body structure; the main body structure comprises a lower shell and an upper shell, one end of the main body structure is provided with a bottom cover, and the other end of the main body structure is provided with a lens for projecting an image; the rotating structure is used for rotating the image; the rotating structure comprises a projection box and a projection frame which are arranged in the main body structure, a driving fluted disc is rotatably mounted in the projection box, a rotating ring is rotatably mounted on the projection frame, a film is mounted on one side of the rotating ring, the rotating ring is driven by the driving fluted disc, and the driving fluted disc is driven by a motor. The device is simple in structure and convenient to use, through cooperation of the main body structure and the rotating structure, an image can be projected to a ceiling or a wall, meanwhile, the projected image can rotate slowly, a relaxed atmosphere is created, and sleep is assisted.

The utility model relates to a projection sheet support and a projection device, the projection sheet support comprises a mounting support, a projection sheet and a limiting cover, and the mounting support is provided with a matching part; the screen sheet is arranged on the mounting bracket, the mounting bracket is provided with a first light-transmitting channel, and at least part of the structure of the screen sheet is exposed through the first light-transmitting channel; the limiting cover is connected to the mounting bracket and clamps the projection sheet together with the mounting bracket; the limiting cover comprises a fixing part and a limiting part, the limiting part is elastically connected to the fixing part, one end of the limiting part is detachably connected to the matching part, and the other end of the limiting part abuts against a part of structure of the projection sheet; in the state that the limiting cover is installed on the installation support, the projection sheet can abut against the limiting part under the action of external force, so that the limiting part can move relative to the fixing part, and connection between the limiting part and the matching part is removed. In the embodiment of the invention, the process of dismounting the mounting bracket and the limiting piece is relatively simple, and the efficiency of replacing the screen sheet can be improved.

The utility model discloses a slide card with NFC function and a slide card mounting rack, and relates to the technical field of slide cards, the slide card comprises a reinforcing frame, the lower end of the middle part of the rear side in the reinforcing frame is provided with a groove, the groove is internally provided with an NFC chip, the inside of the reinforcing frame is fixedly provided with a slide card body, and the slide card body is provided with an NFC chip. Images and texts are printed on the surface of the slide show card body, and voice data of the printed images and texts are stored by arranging the NFC chip; a slide show card mounting rack with an NFC function comprises a mounting seat and an adjusting assembly. A fixing frame is fixed to the upper side of the mounting base, a mounting block is fixed to the upper side of the fixing frame, an NFC reading module is mounted on the upper side of the mounting block, the NFC reading module is attached to the side face of the reinforcing frame, the NFC reading module corresponds to the NFC chip, and a Bluetooth module and a PLC are mounted on the front side of the mounting base. The display effect is improved.

According to the LOGO projection device provided by the invention, the motor driving unit drives the first motor assembly and the second motor assembly to operate, the lamp bead driving unit drives the projection lamp to operate, the first motor assembly drives the rotating mounting disc to rotate, the second motor assembly drives the rotating gear on the rotating mounting disc to rotate, and the projection sheet is driven to rotate. The timing unit collects the starting time of each unit in the control module and sends an electric signal after a preset certain time, the main control unit stops the operation of each unit, the closing of each unit is controlled in a timing manner, in addition, the timing unit can send an electric signal to the main control unit after the preset time, so that a certain unit is started, and the time of the main control unit is shortened. And the 433 wireless remote control unit receives wireless signals to realize on-off of the wireless signal timing control device of the mobile phone, so that a corresponding projection sheet is projected at preset time, and the use convenience of the projection device is improved.

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.

The invention relates to a device comprising an LED powered by an electric current (I) and arranged to illuminate an image to be projected, and also to an image change module that makes it possible to replace the image to be projected with another image, the device being configured to operate, alternatingly: - in an image display mode (S1), in which the image present in the path of the illumination beam is held in position and in which the electric current varies over time (t) with a first duty cycle and a first peak current (11), and - in an image change mode (S2) in which the electric current varies with a second duty cycle which is smaller than the first duty cycle and with a second peak current (I2) which is greater than the first peak current, and in which the image present in the path of the light beam is replaced with another image.

The utility model relates to a projection sheet support and a projection device, the projection sheet support comprises a mounting support, a projection sheet and a limiting cover, and the mounting support is provided with a light transmission channel; the screen sheet is detachably arranged on the mounting bracket, and at least part of the structure of the screen sheet is exposed through the light-transmitting channel; the limiting cover is detachably connected to the mounting bracket and clamps the projection sheet together with the mounting bracket; the limiting cover comprises a connecting part and at least two limiting parts, the connecting part is detachably connected to the mounting support, one end of each limiting part is connected to the connecting part, and the other end of each limiting part elastically abuts against the screen sheet to limit movement of the screen sheet. The limiting part elastically deforms under the action of external force so as to change the size of the mounting channel, and the projection light penetrates through the mounting channel and the projection sheet and is transmitted out of the light-transmitting channel. In the embodiment of the invention, the mounting bracket and the limiting cover do not need to be disassembled, so that the steps of mounting, taking down or replacing the screen sheet can be simplified, and the working efficiency is improved.

The utility model discloses a projection device capable of being used for decoration. The projection device comprises a shell, and a light source, a collecting lens, a projection sheet, an imaging lens and a curved reflector which are sequentially arranged on the shell from back to front, a motor and a circuit board are also arranged on the shell; the light source and the motor are connected with the circuit board; the screen sheet is made of high-temperature-resistant glass, and an imaging coating is arranged on the end face of the screen sheet in a matched mode. The motor can be used for driving the projection sheet to rotate so as to switch projection patterns; light of the light source is condensed by the condensing lens and then irradiated to the projection sheet, a projection pattern is irradiated to the imaging lens for pattern amplification, and finally the amplified pattern is reflected by the curved reflector and then is emitted out of the shell. According to the utility model, the screen sheet made of high-temperature-resistant glass is arranged, so that the screen sheet can resist very high temperature, the screen sheet is not easily influenced even if the light source emits light with very high temperature, and the use effect is further ensured.

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.