Now you will learn how to make a 3D holographic pyramid with your own hands at home. Of course, you can buy it in an online store, but its price there is quite high. Therefore, we will make a holographic pyramid from scrap materials and, of course, at home.
Required
- Glue gun or just a tube of glue;
- stationery knife;
- A strip of transparent plexiglass (plastic from a CD box may be analogous);
- Pliers;
- A stencil on which we will cut out shapes for the pyramid
- A smartphone on which a video for a holographic pyramid is downloaded. You can download it at the end of this page;
- Double-sided tape;
- Sandpaper.
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Step-by-step process for creating a pyramid
The stencil of a holographic 3D pyramid has the dimensions shown in the picture
A prerequisite is that the angle must be 45 degrees.
Video for holographic pyramid
In order to create a hologram, you need to upload a special video. Content for a 3d pyramid is quite difficult to find. Here we will post several popular videos that can be downloaded.
Video instructions on how to make a holographic 3D pyramid with your own hands
Where can I buy
You can buy such a pyramid on Aliexpress. It is made very carefully and is usually adapted for any device, but the price starts from 1500 rubles. Here are a couple of links where you can buy one.
In this video tutorial, Roman will show clearly how you can make a 3D hologram pyramid. Such a small pyramid costs about 2,000 rubles on the Internet. However, it turns out that you can save money and make a holographic projector that will work on a phone base with your own hands. If you don’t want to do it yourself or are not satisfied with handicraft production, you can purchase it in an online store.
To make a projector we will need:
glue gun;
stationery knife;
transparent plastic from the CD case;
pliers;
The photo shows a drawing of a holographic pyramid.
Please note that the angle of inclination of the side faces of the pyramid must be exactly 45 degrees.
First, temporarily glue the stencil onto double-sided tape. Next, using a stationery knife, we make deep cuts and then break them off using pliers, holding the workpiece in a vice. We smooth out the chips of the resulting workpiece using sandpaper.
We repeat this operation three more times to ultimately obtain four identical blanks.
When the blanks for the 3D illusion are ready, we will free them from the backing and glue them together to form a pyramid, or more precisely, a truncated pyramid.
That's all. The holographic projector is ready!
You need to install the pyramid upside down exactly in the center of the phone display. Place a cardboard square on top; it should be dark in color.
Now we launch the video and watch the hologram in action from any side.
Holographic three-dimensional pyramids are sold in online stores and cost a lot of money. We suggest that you do not rush into purchasing such a pyramid, since you can make it yourself. This is what this review is about.
So, we will need:
- glue gun;
- stationery knife;
- transparent organic glass;
- pliers;
- stencil;
- a mobile phone with a special holographic video.
If plexiglass is not available, you can use the transparent plastic of the disc box. Links to videos will be provided at the end of the review. Note that the width of the upper part of the stencil is 10 mm, the lower part is 60 mm, and the height is 35 mm. It is also important that the pyramid is located at an angle of 45 degrees.
The first step is to glue the stencil onto the organic glass. Temporarily glue the stencil with double-sided tape.
Next, using a stationery knife, we make deep cuts and then break off the organic glass using pliers. You can first clamp the workpiece in a vice.
As a result, we should have a workpiece in the form of a triangle. If the chips remain uneven, they can be processed using sandpaper.
We perform the same operation three more times, since in total we should end up with four identical pieces.
The blanks for the three-dimensional illusion are ready, which means you can remove the backings and glue them together with a glue gun.
The three-dimensional hologram is ready. To see the illusion, you need to place it upside down strictly in the center on the smartphone screen. It is also necessary to cover the top of the pyramid with a piece of cardboard. According to the author, it is desirable that the cardboard be dark. All that remains is to launch the holographic video and observe the effect from any angle.
Useful tips
You can turn your smartphone into a holographic one 3-D player thanks to a simple project shown in his video by a user named Mrwhosetheboss.
This user created a special device, which, together with a video sequence created specifically for the hologram, creates the illusion of a 3-D picture floating in the air.
You will need:
Old CD case
Sharp knife
A little duct tape
Ruler
Squared paper.
1. Draw 3 trapezoids on paper with dimensions of 1 cm x 3.5 cm x 6 cm.
2. Cut out the trapezoid.
3. Take the case for discs, carefully remove the sides, circle the trapezoid cut out of paper 4 times.
4. Using a utility knife, cut out 4 trapezoids.
5. Glue all the trapezoids together to form part of the pyramid.
6. Download demo video to your smartphone and use this design to view the hologram.
Here are some video clips that can be used for this technology:
How to make a hologram
Holographic video
Video clips that are used for this device are play the same picture on four sides.
When all these four video series are reflected in the panels of the created device, you get the illusion of a 3-D hologram.
Holographic effect
Unfortunately, such an illusion cannot be called a hologram, because Here 2-D pictures and videos are used to create the desired effect.
A true hologram creates a 3-D image and uses technology that separates laser beams.
The theory and practice of creating holographic images was first mentioned in the chronicles of the 16th century. The hologram illusion has long been the subject of speculation by scientists, artists and magicians. Engineers have improved devices to reproduce transparent ghosts that appear where there is actually nothing. They developed glass and polymers to produce the clearest projection possible. Motors were used to move the reflection planes, the light intensity was selected, and a multi-level process was created. Now everyone can make a 3D hologram on a tablet, smartphone or computer screen. Let's look at how to make a hologram using a tablet as an example.
How to make a hologram on a tablet or smartphone
To obtain a three-dimensional image, a prism is installed on the device screen, or rather, a tetrahedral pyramid without a vertex. Using a specially prepared moving image displayed on the screen and this prism, you can create a three-dimensional picture. The image, reflected from the planes of the pyramid, appears in the form of a 3D projection.
Prism for hologram
To make a prism, you need to take 4 computer disk boxes with transparent lids. This plastic is suitable for creating a structure that is made as follows:
- We break off the transparent lid from the box and remove the side parts, leaving only a smooth surface.
- Now you need to cut from the blanks geometric figures according to the stencil.
- We make a cardboard isosceles trapezoid with bases of 2 and 12 cm and a height of 8 cm.
- We apply this stencil to the plastic and outline it with a marker (preferably black).
- Using a metal ruler and a utility knife, we make precise cuts along the marked lines. The force must be significant, or the tool must be passed several times.
- This cut makes it easy to break the plastic. Smooth the edges with pliers.
- It turned out 4 trapezoids. They are the same in shape and size. The trapezoids need to be glued together with tape, for which we lay them out on one plane, placing their edges next to each other.
- After turning the resulting flat figure over, we form a volumetric prism from it. Now we secure its ribs on the outside with tape.
If the hologram is created on a smartphone, the entire structure is made from one CD or DVD box (from smaller trapezoids). To do this, reduce the size of the stencil. The dimensions of the prism for a hologram can be any; they are determined depending on the screen size of the device on which the 3D image will be reproduced.
Instead of covers from CD boxes, you can use plexiglass or thick transparent film as a material. You can use any plastic, even very thin and flexible, and ordinary glass.
Size rules
Today you can find a special video for a 3D hologram on the networks. Animated images, usually shown on a black background, are the basis for a 3D projection that will appear in a transparent pyramid. You need to download them and enable them on the device screen. To check the size fits you need to do the following.
- Place the smartphone (in this case, tablet) with the screen facing up.
- Place the prism with its smaller base on the screen.
- Look at the image above. The small square (cut from the top of the pyramid) should be approximately 2 times smaller than the distance between the moving pictures.
- The image itself as a whole should not extend beyond the larger square.
- We check the height of the prism by the angle of inclination of the edge - approximately 45°. Then the image will not appear too high, going beyond the transparent structure, or low.
If all parameters are correct, the prism for the monitor can be considered ready and suitable for use when reproducing a three-dimensional image.
The picture created in the center of the prism will attract the attention of both children and adults.
How to make a hologram of yourself
If you want to make a hologram (3D image) of yourself, you need to hang a black cloth as a background and take a photo, taking several different frames. To begin with, 2-3 photos are enough as a basis for adding movement (animation). You can record a video with your image against a dark background. It is subsequently possible to make a storyboard from it (dividing it into separate frames) and create blanks for a hologram in an animation format.
To create animation you need to know how to make moving pictures. If you don't know this, the idea of making a 3D moving image yourself may not lead to the desired result. Each frame in the hologram is created in advance, and during playback the pictures alternate at a given speed.
You can use almost any photo editor and animation program. A special picture for 3D includes a photo of a person, repeated 4 times and arranged in a cross shape. These 4 identical images on a black background need to be placed within a square. On the tablet screen, the image will be two-dimensional. Next, you need to look at it from the side through a prism mounted on the screen with a base (square). This will be surprising, since the 3D picture will appear in the prism as if it were real, and not two-dimensional.
Where to get ready-made images to create a hologram
Pictures for reproducing holograms should not be ordinary, but specially prepared. As described above, the image must be symmetrical within a square and consist of 4 identical elements arranged crosswise. You can make such a blank yourself and give it movement, show your artistic abilities, expressing your thoughts.
Before you try to do this, you need to find ready-made animations and videos for viewing holograms. Then make a prism and acquire your first skill in creating 3D images. Remembering the principle of operation, it will be easier to realize your own ideas.
How to make a large hologram for a laptop?
The features of the 3D images obtained using the above method are implemented in the form of a large hologram. The template is a trapezoid with a base of 240 mm, an upper horizontal of 40 mm and a height of 140 mm. A chamfer of 45° is made relative to the side edges. Glaziers have glass of this size. They need to be cut precisely, which determines the quality of the 3D picture. So this is easier to implement with plastic.
We carefully glue the ribs with silicone. Cut out 1 cm strips from double-sided tape and cover the top edge of the glass. Next, we turn on the picture for 3D images on the entire screen. We place a pyramid on it with a smaller square. The tape will help prevent scratches. We combine the edges with the white diagonals and start the video in a dark room.
A little history
The hologram illusion has been around for a long time. Similar equipment has been used in theaters, parks, museums and concerts since the 19th century. The effect was called Pepper's Ghost after the scientist D.H. Pepper, who spread the phenomenon through demonstration. This was in 1862, and today the art of holograms has reached perfection. The world began to become acquainted with the phenomenon back in the 16th century, when the Neapolitan scientist Giambattista della Porta developed an illusion camera. He also wrote the work “Natural Magic”, which is the first mention of the reproduction of illusions. The scientist considered the question of how objects that are not actually there can be seen in the camera.
The Polytechnic Institute in London is a scientific institution where D.H. Pepper worked in 1862. At the same time, the inventor G. Dirks practiced the technique of appearing a ghost on stage in a play. He tried unsuccessfully to sell his idea to theaters. This required a complete overhaul of the stage, and the effect was deemed too costly. Dirks then set up a stand at the Polytechnic Institute, where Pepper observed him. The scientist had the intention to modify the method, after which the phenomenon began to be used in cinemas. So the phenomenon gained significant success, and the world learned about it in detail. D. Pepper's improvement of the phenomenon led to it receiving his name, and Dirks transferred to him all financial rights in a joint patent. People, attending various shows, allowed themselves to be deceived, since it was believed that the phenomenon was created by geniuses.
Modern Application
Modern examples today include transparent and translucent attractions at Walt Disney World. The world knows them as the largest implementations of this idea. Several effects are collected on a long stage. A giant 9.1 m hologram is viewed in an empty ballroom. Animated ghosts move in hidden black rooms. The most modern version is used in the Twilight Zone Tower of Terror.
The Nashville attraction uses a classic technique, allowing guests to see spirits interacting with the environment. They can be seen especially close. California also has a Halloween attraction in the Forest Mountains featuring story characters. Projecting an image onto the floor and reflecting it in glass allows a live actor to interact with the ghost, which is used in plays. The world can see the phenomenon in the Netherlands, Australia, America, museums, parks, science exhibitions and attractions. Illusion finds application in various fields:
- Television and cinema use the method to broadcast programs and create effects.
- Sometimes the phenomenon is used for commercial purposes to attract visitors.
- It is often used at music concerts. But in this case, the images are often projected rather than holographic. Entire installations run on special software.
- Political speeches allow you to reproduce figures in several places at once. This effect was used in India during the speech of Minister Narendra Modi.
- Scientific philosophy uses a holographic model of the Universe, where each part of the 3D image contains information about the whole picture. This helps to study the world in detail.
The story about creating 3D images should end with a phrase from the character Bill Cipher from the animated series Gravity Falls: “Remember that reality is an illusion, the universe is a hologram, buy gold!” This hero, drawn in the form of an all-seeing eye, according to the idea of the cartoon, appeared from the second dimension of “flat minds”. He could inhabit the mind, visit dreams and had a dark sense of humor. Hating his fellow tribesmen, he destroyed the second dimension and helped the third to manifest itself.