What is a hologram technology?
Hologram technology - A hologram is a three-dimensional image, created with photographic projection. Denis Gabor A Hungarian-British physicist invented holography. He received the Nobel Prize in Physics (1971). Holography is the science and practice of making holograms. The word is derived from the Greek words holos (whole) and gramam (message).
A hologram represents a recording of information about light that came from the original scene scattered only from one direction to another, as in a photograph. This view can be viewed from a range of different angles, as if it were still present. Unlike 3-D or virtual reality on two-dimensional computer displays, a hologram is actually a three-dimensional and free-standing image. In the future, holograms can be transmitted as electronics to a special display device in your home and business.
A hologram is made of light
Holograms appear directly in front of the user's eyes in a holographic frame. Holograms add illumination to your world, meaning that you are seeing both the light from the display and the light from your surroundings. Holograms cannot be done with black. Because there does not remove light from your eyes, so the black material appears transparent.
Holograms can have many different behaviors. Some are realistic and solid, and others are cartoonists and ethers. Holograms can highlight features in your environment, and they can be elements in your app's user interface.
A hologram can create sound
Holograms can also create sounds that seem to be coming from a specific location in your environment. Similar to displays, there are speakers, which can create new sounds without blocking sounds from your environment.
A hologram interacts with you and your world
- Hologram is not only about light and sound; Hologram are also an active part of your world. Stare at a hologram and gesture with your hand, and a hologram can start following you.
- Give the hologram a voice command, and it can answer.
- Holograms enable personal interaction that is not possible anywhere else. Because Hololens knows where in the world it is, a holographic character walking into the room can look you straight in the eye.
- A hologram can also interact with its surroundings. For example, you can place a holographic bouncing ball on top of a table. Then, with an air tap, try to bounce the ball and make a sound when it hits the table.
- Holograms can also be represented by real-world objects. For example, a holographic character can walk out of your sight, behind a door and through a wall.
How are hologram techniques used in warfare?
Holograms have been used quite differently in Iraq and Afghanistan. Satellite data was used to create large digital holograms (1M X1M) that were on the photopolar with a flexible backing to roll them into a tube.
They are illuminated with a specially provided flashlight and the 3D data they provide makes it much easier for soldiers to create a picture in their minds of the actual area they are entering. What does he look like Topographic maps are difficult to read and require interpretation while holograms look like the real thing (though usually monochrome).
The different types of holograms are:
Holographic interferometry
Subtle change on an object can be measured quantitatively by creating two risks on a moving object. The two images interfere with each other and can be seen on an object revealing vector displacement.
In real-time holographic interferometry, the virtual image of the object is directly compared to the real object.
Even invisible objects, such as heat or shock waves, may be visible. Holometry has countless engineering applications in this field.
Multichannel hologram- With the change in the angle of viewing light on the same hologram, completely different views can be seen. This concept has the potential for large-scale computer recall.
Barcode Hologram
A unique high-security hologram for brand security, these are particularly new for track and trace. The unique hologram is capable of carrying encoded barcodes that can be easily detected and tracked through a scanner. These holograms are particularly useful in navigation and ensure product safety through the supply chain.
Dematerialized Hologram
Dematerialization refers to the removal of metallization from some part / s of the hologram. Demonetization involves the process of removing a metallic coating over an entire area or a specific area, to enhance the safety pattern or design. Dematization serves as one of the highest security level hologram technologies in conjunction with the holographic part, and the non-holographic piece makes it distinct and unique.
Scratch Holograms
Scratch holograms hide secret information that the end-user can see only after closing the holographic image. This type of hologram is used for applications such as recharge vouchers and cards and is also used for redemption purposes as part of gift schemes. The hologram provides a high level of security that enables the end-user to authenticate the product to its satisfaction.
The reflection hologram, in which a three-dimensional image is actually seen near its surface, is the most common type shown in galleries. The hologram is illuminated by a "spot" of white incandescent light, located at a specific angle and distance, and located on the viewer side of the hologram.
Thus, the image consists of light reflected by a hologram. More recently, these holograms have been created and displayed in color - their images are alternately indistinguishable from the original objects If a mirror is an object, the holographic image of the mirror reflects white light; If the diamond is an object, then the holographic image of the diamond is seen to "shine".
Although eagles are seen with reflective light on mass-produced holograms such as the Visa card, they are actually "mirrorized" transmission holograms with a layer of aluminum on the back.
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