Excusive Summary
The holography technology could record and display full information of three dimension objects by using interference and diffraction of light. It was invented in 1940s and develops to several types. For example, rainbow hologram is a wildly used technology on credit cards and currencies. Traditional hologram needs laser to reconstruct, but rainbow hologram only needs the white light, like sunshine. After this, people try to make hologram easier to reconstruct whereas the recording methods have not been simplified much. In the future, the digitalization may help holography go further.
Introduction
Holography is a photographic technology which records all of the information that light wave affects the interference and diffraction of the object, including amplitudes, phases. After rebuilding, the image could be observed in different positions and as if the real object was there in the same way, which brings stereopsis to human beings. The Hungarian British physicist Dennis Gabor was the first person who invented holography occasionally in British Thomson-Houston (BTH) Company in late 1940s [1], and thus he won the Nobel Prize in Physics in 1971 [2]. The BTH Company patented this technology in 1947 [3]. The first holograms contained the 3D object are invented in 1962 [4] thanks to the development of laser.
Theory
Process of Recording
Holography is a photographic technology using principle of interference and diffraction of light to record the information of object and then reconstruct the 3D image. The process of recording information for light wave on object, by using the principle of interference is the first step, called holographic recording [5]. Usually, the laser is used as the coherent light source because it...
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...on but also increase interaction with audiences. On a trade fair, holographic display is also very attractive and gain more attention from customers. In the future, it is possible that the distance education and video conferences become more interactive and face-to-face
Conclusion
To summarize, the holography is not a very new technology nowadays, and it has history nearly half century. In last decade, human beings witness the innovation of technology from analogy to digitalization. There is no reason to leave holography along and not allow it to join. Fortunately, the computer generated holography (CGH) is developing rapidly, which could build and display holograms by computer without any other optical equipment. If there is a way could reduce the cost of holography and do not need expensive and precisely equipment anymore, holography will comes everyone’s life.
There first invention produced was the Technicolor System 1 Additive Color, which I’m sorry to say flopped massively due to the unfortunate screening of The Gulf Between in 1917 which only a few frames remain of this film today. This was the first public premier of the technology and was disastrous. The film was captured through two separate filters red and green and the light through those two filters was captured on a single reel of film, when processed this negative had red and green information captured on a black and white reel, when this was processed the reel was placed into a projector and then threw red and green filters. To project the image an adjustable prism that had to manually lined up by the projectionist as two separate images formed on the projection screen this did not work as planned as the projectionist failed to line up the images correctly.
Prior to the invention of the daguerreotype, the Camera Obscura was the main optical instrument that was used to project images onto paper. The Camera Obscura was a device in the shape of a box that allowed light, which was being reflected from the images that the user was intending to capture, to enter through an opening at one end of the box to form an image on a surface and an artist would then trace the image to form the most accurate impression of an image at that peri...
In order to really understand where medical imaging is currently at one must have a basic understanding of where it came from. Twenty years ago radiologist would read and dictate the images on film. They were able to accomplish this by holding the film up to light boxes. This method provided no way for the radiologist to interact or manipulate the images
...ossessed with three dimensional attributes. The optical effect may be explained by the fact that the human eyes see an object from two viewpoints separated laterally by about six centimeters. The two views show slightly different spatial relationships between near and near distant objects and the visual process fuses these stereoscopic views to a single three dimensional impression. The same parallax view of an object may be experienced upon reflection of an object seen from a concave mirror." (http://www.freepatentsonline.com/4229761.html).
From these painting we jump to 1838 with stereoscope and then the view master in 1839. The stereoscope is a device that showed two side by side images or photos that gave the person using the steroscope a sense of immersion. The stereoscope was created by Charles Wheatstone, but then one year later William Gruber approved upon the idea of
The principle behind the refractive telescopes is the use of two glass lenses (objective lens and eyepiece lens) to gather and bend parallel light rays in a certain way so that the image fits the size of the eye's pupil. Light rays is gather through the opening of the telescope called the aperture and passes through the objective lens and refracts onto a single point called the focal point. From there the light rays continue the same direction until it hits the eyepiece lens which also refract the light back into parallel rays. During the process, the image that enters our eyes is actually reverse of the original image and magnified because the size in which we preceive the image.
The Hubble Telescope is the world’s first space-based optical telescope. The Hubble telescope received its name from American astronomer Dr. Edwin P. Hubble. Dr. Hubble confirmed an ever expanding universe which provided the basic foundation of the Big Bang theory. The first concept of the Hubble telescope came from Lyman Spitzer in 1946 who at that time was a professor and researcher at Yale University, Professor Spitzer believed that Earth’s atmosphere blurs and distorts light and a space orbited telescope would be able to surpass this problem. He spent nearly all of his life dedicated to making this concept into a reality. (http://hubblesite.org/the_telescope/hubble_essentials/)
The concept of fiber optics is simple, yet it provides so many potentialities in the world of technology. Presently the world relies on fiber optical technology for its data and communications systems. The consumer can converse on the telephone and hear voices with clarity, as well as send and receive information on the Internet with ease. However, there still lay a sea of possibilities in this area of technology that has not yet been discovered.
Take for instance a presentation event where you have a speaker and an audience. One of the main items of importance during event planning will be the camera and projection screen. Another item of importance is the cameraman. One point to note is that you can obtain a good event management app to manage your checklist for all these items. Notice how during the presentation the cameraman will focus on the face of the speaker. On cue when the speaker makes a point, the cameraman will focus on the speaker's eyes. This is to establish a contact between speaker and audience through the big screen so that the audience can feel a connection between the speaker and his or her audience. When you notice this in any presentation that you go to, make sure to take note of the event solution company and the cameraman! They have their act well
Scientists and engineers have been able to enhance our lifestyles by understanding and using the Laws, Concepts and Principles of Optics and how they are applied in Optical Instruments. The key concepts are:
An optical illusion can be a picture that appears to be an elephant with four legs, but when looking closer, a person is unable to count the legs, due to irregular lines. Another example of an optical illusion is the Hermann Grid Illusion, in which a grid with black boxes and gray lines appears to have black dots on the white circles. It does not, in reality,
Although still in its, infancy, virtual reality will have a substantial effect on our future way of life. Virtual reality already has made astounding progress in the world of commercial design, and it is predicted to have a tremendous impact on everyday life as well. Virtual reality, when more available, will have various uses ranging from recreation to basic communication. The applications of virtual reality into different fields of occupations and research will have both positive and negative effects on our society.
A history of the beginning of the year augmented reality 1957-1962, when an inventor named Morton Heilig, a cinematographer, created and patented a simulator called Sensorama with visual, vibration and odor. In Virtual Reality technology, users interact with the virtual environment created for simulating the real world, but the user can not see the real world around him. In the augmented reality technology, the user can see the real world around him with the addition of a virtual object generated by a computer. Augmented reality 3D objects that appear directly in the media, it would require a special tool called a Head Mounted Display
Title: Compare and contrast the presentation of visual information in two different types of media today, focusing on how effectively the information is communicated.
Augmented reality actually has given a lot of contribution to various applications using 3D real environment. This review focuses on the medical visualization such in situ visualization device. The developed software will make an expert can contribute by create a real virtual environment in 3D so that the doctors easily to interact with. (Shuhaibar JH, 2004) defined augmented reality is a new approach in executing detailed surgical operations. More research needed to evaluate long-term clinical. It is important to have these technologies in order to create a human better life.