We all know about 3D technology. It is one of the advanced technology that has created new sensation in the world of technology. There are similar technologies which is more effective than 3D technology.
Holographic technology, or Holography, often known as hologram technology, is a type of photography that records the light emitted by an object and then projects it as a three-dimensional object that can be seen without the use of any extra equipment.
Several varieties of holograms have arisen, ranging from transmission holograms to rainbow holograms.
A hologram is the technique of making a three-dimensional projection of any object using light or laser beams visible to human eyes. There is no need for glasses, a camera, or any other special equipment to see these 3D items.
The nicest part about a holographic display is that it appears to be an authentic item that may move and float in the air when a person rotates. We can view the thing from every angle. This technique has the potential to revolutionise digital presentation.
It is viewable from all sides, allowing a user to wander around the display and construct a realistic-looking image. Holograms have been a dream of technology and entertainment corporations. A laser light beam is split into two identical beams, one of which is targeted at the item and the other is spread throughout the recording media (illumination beam or object beam). Using mirrors, the second beam is deflected onto the recording device without passing through the object. A common recording media is photographic plates. The two laser beams collide and interfere with each other at the recording medium. This interference pattern is captured on photographic plates.
Electro-holography can display 3D images from the air without the use of many projectors or mechanical processing. A revolving mirror system is also used to display a true 3D image. A high-speed video projector is directed at spinning mirrors, which reflect in all directions, allowing 3D graphics to be seen from any angle.
Holographic pictures maintain the depth and parallax of the original object, among other qualities. This is useful for communicating complicated technological topics that might otherwise be difficult to grasp. Holograms can be single-frame visuals or dynamic sequences of several projections.
In the late 1940s, the Nobel prize winner Dennis Gabor invented and developed the holographic method.In the year 1962, Yuri Denisyuk was able to achieve practical holograms that recorded the 3D objects.Later Use of rainbow holograms in credit cards started in the 1980s.Interactive holographic displays were developed in the year 2009. Later, in the next year, 3D holograms were developed. Recently, new hologram technology is developed that can project 3D objects from another location in real-time.
This holographic technology is used in many sectors such as Security, Medicine and Imaging, Military, Entertainment and Gaming, Education etc.