33 results about "Slide projector" patented technology

The ivnented illuminator of the discharge lamp includes the tube shaped case shell mode of transparent material, a pair of discharge electrodes with the gap between them, inserted into the case shelland the closure plug. The electrode axes of the discharge electrodes are fixed on the closure plug respectively. The position of the discharge electrode can be adjusted along the axis direction in the case shell. The discharge gas is filled in the discharge chamber formed by the case shell and the closure plug. The lamp can be widely used in the daily life and industrial area, such as street lamps, hanging type projection lamps and in cine-cameras, slide projectors as the lighting instrument for advertisement and illumination.

The invention relates to a filmstrip take-up device used for an integral electromechanical stage, wherein, the mechanical part comprises a slide storage device and a slide positioning device, which are arranged on both sides of the filmstrip device respectively; the electric control part comprises a controller, wherein, the signal receiving end of the controller is separately connected with a network interface, a man-machine interface module and a photoelectric switch; the signal output end of the controller is separately connected with the signal input ends of a motor driver of a front slide storage shaft and a motor driver unit of a rear slide storage shaft. The invention has the advantages that the traditional manual insertion of slide is replaced; the work efficiency is greatly improved; a plurality of projection type slide projectors can be work synchronously, thus, the time difference in manual slide replacement is avoided; meanwhile, the various background can also be replaced at any moment depending on performance requirements and the requirement of various large scale performance is satisfied.

The invention relates to a hand-held illuminating lamp which can also be called a flashlight. The technical scheme adopted by the invention is that the hand-held illuminating lamp with a laser slide projector is characterized in that a laser radiation device is arranged between a lamp holder and a barrel; the laser radiation device comprises a mounting rack, laser devices, a turnplate and turning wheels; the periphery of the turnplate is provided with accommodating cavities corresponding to the positions of the laser devices; the turning wheels are respectively arranged in the accommodating cavities; the bottom part of each turning wheel accommodating cavity is provided with a through hole; a slide covers on the corresponding through hole; each turning wheel is provided with a hole penetrating the through hole at the bottom part of the corresponding turning wheel accommodating cavity; and the corresponding hole is also provided with the slide. Through adopting the scheme, in order to overcome the problems existing in the prior art, the invention provides the novel hand-held illuminating lamp with the laser slide projector, which is provided with laser radiation patterns which can be changed.

The invention discloses a novel numerical control mechanical transmission mechanism of a slide projector. The novel numerical control mechanical transmission mechanism comprises a slide changing mechanism, a focusing mechanism, a drive mechanism and a drive wheel. The focusing mechanism is arranged on a base of the numerical control mechanical transmission mechanism of the slide projector. The drive wheel is provided with multiple drive blocks which are in transmission contact with a pushing mechanism. The focusing mechanism is arranged on the upper portion of a worm, and a motor and the drive wheel are coaxial. The slider changing mechanism is connected with a friction wheel through a driving shaft. An installation groove is formed in the slide changing mechanism. A piston rod is arranged in the focusing mechanism. The right side of the drive wheel and the right side of a lens tube are provided with dust rings. The numerical control mechanical transmission mechanism of the slide projector is simple in structure, reasonable in design, long in service life, low in cost, and capable of meeting the requirement for conveniently and quickly projecting high-quality files and videos of users.

The invention discloses an energy-saving slide projector capable of generating power by itself. The energy-saving slide projector comprises a projector body, a projector used for projection is fixedlyinstalled on a heat conduction plate, second fan blades rotate to reduce the environment temperature, a second fan blade shaft rotates to drive the rotation of a third gear, the projector is in contact with the heat conduction plate while protection is performed to collect heat and transmit the heat into a generator for power generation so as to achieve recovery of electric energy, fan blades aredriven by transmission parts such as helical gears and gears to rotate for heat dissipation, a motor on a rotating shaft can be supplied with power by the generator in the projector body to achieve secondary utilization of electric energy while the projector body is subjected to heat dissipation to prevent the temperature of the projector body from too-high temperature and short circuit and achieve electric cycle; and moreover, due to the fact that the temperature of the environment is increased while heat dissipation is conducted, a user feels poor, and mist spray and an electric fan are designed to reduce the temperature in the environment.

The invention discloses a swinging slide projection lamp which mainly adopts the structure that a light-transmitting lampshade is arranged at the front end of a lamp housing; a power supply unit and a swinging projection mechanism are arranged in the lamp housing; after light emitted from an LED lighting device of the swinging projection mechanism passes through a collecting lens plate, a slide and a convex lens plate, a patterned light shadow is projected by the light-transmitting lampshade; and furthermore, a motor drives the convex lens plate to rotate, so that convex lenses of the convex lens plate rotate to change positions relative to pattern units of the slide, and then the projected patterned light shadow has a rotating and changing light effect. Meanwhile, the motor further drives a transmission gear, the transmission gear drives an eccentric guide gear to rotate, and an eccentric column of the eccentric guide gear performs linear reciprocating motion in the lamp housing, so that the whole swinging projection mechanism can be guided to swing from one side to another, the projected rotating and changing patterned light shadow can further have a side-to-side swinging dynamic changing effect, and the floating range of the project patterned light shadow can be enlarged.

The present invention provides a remote automatic intelligent teaching display working method. The method comprises the steps of: S1, sending a working instruction to a slide projector through an intelligent terminal, and starting a projection lamp through the slide projector; S2, after displaying a lantern slide module of completing a many-sided snap ring, picking the many-sided snap ring; and S3, if the temperature, detected by a temperature sensor, at the internal portion of a slide projector cover body is too high, starting a first fan and a second fan for working. The remote automatic intelligent teaching display working method prevents the slide projector from being burnt, and improves the user experience satisfaction.

The present invention relates to a slides projector device for books, comprising: a) an optical unit that includes an array of light sources and a corresponding array of lenses, wherein each lens and its corresponding light source adapted to project a different image located on a corresponding elongated slide located between said arrays of light sources and lenses, wherein said optical unit is adapted to be located on the upper side of a book; and b) an operation unit that includes an array of switches each of which adapted to activate a corresponding light source in said array of light sources, wherein the array of switches is adapted to be located on an upright side of the book that is perpendicular to its upper side and parallel to the hinge side of said book.