5 results about "Slide projector" patented technology

The invention discloses an improved film slide projector, and particularly relates to the technical field of image playing equipment, the improved film slide projector is characterized in that a magnetic attraction type remote controller fixing groove is formed in the side edge of a projector body, and a remote controller is fixed in an anti-falling mode through a magnetic attraction body; the playing bin, the sliding bin and the transmission bin are communicated in the machine body. A cartridge placement groove, a light adjusting bin and a light source bin are sequentially arranged in the playing bin, and a heat dissipation opening and a through hole are bidirectionally formed in the side rear of the light source bin. The bottom of the sliding bin is provided with a sliding rail block matched with the cartridge sliding groove. A cylindrical gear arranged in the transmission bin is meshed with a cartridge rack to drive the cartridge to move, a variable-speed double-gear is meshed with a rack of the push rod body, and the slides are accurately pushed into the cartridge containing groove through the push piece. The device has the advantages that the functions of magnetic attraction fixing, two-stage gear transmission and multidirectional heat dissipation are integrated, and the operation convenience, the projection positioning precision and the equipment reliability are synchronously improved.

1. Name of the Design Product: Slide Projector (AJMFP). 2. Use of the Design Product: For projecting images. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

1. Name of the product subject to this design: Toy (Slide Projector Television). 2. Purpose of this design: for children to play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the Design Product: Film Slide Projector. 2. Use of the Design Product: For playing film slides. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Stereogram.

The invention provides an intelligent vehicle-mounted slide system and a vehicle, which are used for vehicle body projection of labels, advertisements and license plate numbers and comprise an ambient light intensity sensing module, a dynamic brightness control module and an automatic dormancy module. The dynamic brightness control module adjusts the driving current or duty ratio of the LED in real time by adjusting the driving current and pulse width modulation (PWM) according to the external illumination intensity detected by the ambient light intensity sensing module in real time, so that the visual contrast ratio of the projected image-text label is kept in different environments, and stroboflash is inhibited. The device is small in size, low in power consumption and economical in cost, can be mounted on a rearview mirror or a side skirt of a vehicle, and is suitable for identity identification and advertisement projection of an online hailing vehicle, a bus and a logistics vehicle.