CN2159578Y - Multifunctional Portable Slide Projector - Google Patents

Abstract

The utility model is a multifunctional portable slide projector, which can not only show general 135 slides, but also has the functions of showing moving films, special-type films, small experiments, zooming microscopes, and high-magnification projections of real objects. This machine integrates slide projector, projector and physical projector, and also comes with a foldable see-through screen, supporting accessories, special test machine samples, etc. at random. The machine has simple structure, clear image, easy operation, complete functions and low cost, and can be widely used in teaching, scientific research and other fields. Generally, slide projector manufacturers can put into production in a short period of time, or modify existing slide projectors, add the above functions, and quickly gain benefits.

Description

The utility model relates to the redesign and improvement of the existing slide projector.

Existing slide projectors at home and abroad are all used to show 135 slides. Although the models are different, they can only present static pictures and have a single purpose. As a result of searching the data of the Patent Office, it was found that such patent applications did not fundamentally break through the original function of the slide projector.

The purpose of this utility model is to fundamentally update the concept according to the needs of teaching practice and scientific research, and break through the limitations of the traditional performance of slide projectors in the past. Through various methods, it can not only show general 135 slides, but also have show activities. film, special-shaped film, small-scale experiment, zoom microscope, and high-magnification projection of real objects. This new model, which integrates a slide projector, a projector, and a physical projector, also comes with a foldable see-through screen, matching accessories, and samples of special test machines, which is very convenient to use. It is widely used in teaching, scientific research and other fields.

Below in conjunction with accompanying drawing, describe its structure and function in detail.

Figure 1 is a schematic diagram of the whole multifunctional portable slide projector. Among them, 1 is the chassis, 2 is the detachable cover, 3 is the host, 4 is the demonstration device box, 5 is the power cord, 6 is the see-through screen, 7 is the folding screen frame, 8 is the screen bracket, and 9 is the physical projection platform. This machine adopts a new model that puts slide projector, screen, accessories and demonstration devices in one box. The volume is 35.5CM×24.5CM×13.5CM, easy to carry. The cover of the box can be removed and also serves as the base of the screen. All the accessories, lamps, and demonstration devices are in the box. One box is in hand, and it can be used anywhere as long as it is connected to the power supply.

Fig. 2 is a schematic diagram of the main engine, wherein 10 is a detachable variable lens, 11 is a fuselage, and 12 is a tail pad. The host is composed of two parts: a detachable zoom lens and a fuselage. The lens can be removed flexibly, and its position can be changed and reassembled with the body. The tail of the fuselage is equipped with rubber feet, and the fuselage can stand upright.

Fig. 3 is a schematic diagram of a folding see-through screen, wherein 13 is a folding screen hinge, and 14 is a screen lifting hinge. The folding screen is installed in the box cover. When in use, open the box cover and push it to the right to separate from the box body. Then unfold the folding screen frame, fix it, let go of the rolled up screen, and prop it up with a bracket to form a 34cm×34cm screen. The curtain is made of 0.1mm wool polyester sheet, which is strong and washable. Good light transmittance and high backlighting brightness. Place this screen between the slide projector and the audience during the show, just like an 18-20-inch TV screen, which can be watched by 30-40 people. It is suitable for seminars, exchange meetings or small report meetings and other occasions.

Fig. 4 is a schematic diagram of the shading curtain in the box, wherein 15 is the shading curtain in the box, and 16 is the inner wall of the cabinet. Take the main unit and the demonstration device box out of the box, and stand the box upright, then the white painted part at the bottom of the box becomes a 24cm×24cm miniature screen. The box body is used for shading, and the inner side of the box wall is painted black to reduce reflection. When in use, it can be placed on the same laboratory table or desk as the slide projector for close-up projection. The brightness is extremely high and the image is clear, especially suitable for daytime projection. It can be used for single or several people to watch research. Figure 5 is a schematic diagram of the demonstration device. The volume of the box is 13CM×28CM×5CM, and there are partitions inside, which are used to store various accessories, demonstration devices, slides, small objects, etc., for easy access and avoid loss.

Fig. 6 is a schematic diagram of a displacement lens, wherein 17 is a reflector, 18 is a slide lens, 19 is an insertion slot before the lens, 20 is a microfocus sliding button, 21 is a microscope slide drawer, 22 is a microscope sheet, and 23 is a lens adjustment focus knob. The special anamorphic lens can be separated from the camera body, and can be installed on the camera body horizontally or vertically. The reflector in front of the projection lens can change the angle arbitrarily to change the projection direction. The knob is used for focusing.

Fig. 7 is a schematic diagram of the installation of the displacement lens, wherein 24 is a flat slot, 25 is a lens focusing gear rack, and 26 is a vertical slot. There is a microscope film inside the lens, unscrew the slide button 20 in the figure and push out the microscope film drawer 21 backwards, then the microscope film 22 can be flipped down. When in use, through the cooperation of the knob and the slide button, it has the zoom micro image function . Incoming microscope film is the same as ordinary lens.

The lens can be installed horizontally on the camera head at position A or vertically at position B, and the lens at position B is used for object projection.

Fig. 8 is a common slide frame, wherein 27 is a positioning frame, and 28 is a common sheet frame. Fig. 9 is a special-type film rack, wherein 29 is a slide frame, and 30 is a frame insert, and the special-type film rack is mainly used for carrying movable slides and multi-layer special-type films with a thickness of about 0.2cm-10cm. Fig. 10 is a schematic diagram of active slides and multi-layer slides.

Ordinary slide frame is used for placement and replacement of ordinary 135 slides. The special-type film holder provides enough space for moving film operation and carrying ultra-thick multi-layer slides. The graphics of each layer are displayed layer by layer through lens adjustment. Create dynamic images or dissolve effects.

Fig. 11 is a schematic diagram of a physical projection platform, wherein 31 is an adjustable loading platform, 32 is an adjustable reflector, 33 is a positioning nail for the reflecting plate, and 35 is a positioning nail for the loading surface. The object projection platform is used to carry the object to be projected and keep it in the best light-receiving state. After placing the object on the table, adjust the table and the reflector to change the light receiving angle of the object. The reflector is made of electroplated metal sheet, and the left and right parts are flat and convex respectively. Push it left and right to adjust the light of the slide projector to focus or astigmatism, and reflect it to the real object.

According to different needs, different projection methods are used, and with corresponding accessories, it can realize the demonstration requirements of ordinary slides, special-shaped films, zoom microscopes, small experimental projections and high-magnification projections of real objects with its various functions.

Horizontal projection as shown in Figure 12, the reflector 17 in front of the lens is put below the horizontal line, and the projection method is roughly the same as the common slide projector. Insert the ordinary film insertion frame (see Fig. 8) annex in the vertical slot 26, and be used to show common slides; insert the accessory special type film holder (see Fig. 9), then be used for showing moving film or special type film; Push back the micro focus sliding knob 20 on the top of the lens, and turn down the microscopic lens (see Figure 6), you can zoom through the knob 23 and the sliding knob 20 to increase the projection magnification, so that the subtleties of the slide can be clearly displayed .

Oblique projection as shown in Figure 14 is used to demonstrate the liquid condition in the test tube. At this time, the tail of the fuselage is raised, and the real projection platform (see Figure 11) can be used as a support. Insert the accessory special-shaped film holder 30 into the vertical slot, and then hook the test tube on it, and adjust the angle of the reflector 17, A positive image of the test tube is displayed on the screen.

Stand up the body and tilt the reflector to project vertically (see Figure 13). In addition to the horizontal projection function, this method also has the characteristics of a projector. Containers such as petri dishes or other small projection devices can be placed under the lens, and the height of the picture reflected on the screen can be adjusted through the tilt angle of the mirror above the lens. , so the operation is more convenient.

Folding projection, used for physical projection. This method needs to change the position of the lens, that is, the fuselage is horizontal, and the lens is vertical, that is, the displacement lens 10 is vertically inserted into the B-position vertical slot on the head of the horizontal fuselage (see Figure 7). Then insert the accessory real projection platform (see Figure 11) into the flat slot at position A of the machine head, and the real slide projection device is completed (see Figure 15). When in use, place a real object 37 (such as small coins, minerals and other small objects) on the stage of the real projection platform, adjust the light and focus the lens, and then you can clearly obtain high-magnification reflected plane images on the screen. The shape, color and structure of three-dimensional small objects.

Claims (6)

1, a kind of portable multifunctional slide projector of partly forming by main frame, cabinet, detachable case lid and demonstration device etc., it is characterized in that main frame is made up of detachable displacement camera lens and fuselage, forebody is equipped with flat slot 24 of camera lens and the perpendicular slot 26 of camera lens, detachable displacement camera lens can separate with fuselage, laterally or vertically to be installed on fuselage, afterbody is equipped with the rubber foot pad.

2, by the described portable multifunctional slide projector of claim 1, it is characterized in that being equipped with in the detachable case lid folding screen frame, available curtain frame bracket launches the screen that the polyester flake of last useful 0.1mm hair side is made.

3,, it is characterized in that cabinet inner bottom part lacquer is white, the inboard painted black of tank wall by the described portable multifunctional slide projector of claim 1.

4, by the described portable multifunctional slide projector of claim 1, it is characterized in that detachable displacement camera lens is by lantern lens 18, micro-focusing sliding button 20, catoptron 17, camera lens focusing knob 23, camera lens anterior plug-in groove 19, micro-eyeglass drawer 21 and micro-eyeglass 22 are formed, the reflective mirror bottom connects with camera lens anterior plug-in groove with hinge before the lantern lens, translation-angle arbitrarily, and micro-eyeglass can and be turned down by micro-focusing sliding button release.

5, by the described portable multifunctional slide projector of claim 1, it is characterized in that special matrix frame inserts 30 by slide glass frame 29 and frame and forms, can carrying activity lantern slide and multilayer spy matrix, and can insert in the vertical slot, test tubes etc. can be hooked on the special matrix frame.

6, by the described portable multifunctional slide projector of claim 1, it is characterized in that projection table in kind by adjustable loading table top 31, adjustable reflector 32, shadow shield 33, reflector locating pin 34 and loading surface locating pin 35 are formed, and can insert the preceding flat slot of fuselage.

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