By John R. Vacca
Cognizance Magnet. most unlikely to place down. visible Magic. those are a number of the words used to explain holograms, a know-how that mixes physics and optics to create a three-d snapshot on a two-dimensional floor. This book/CD package deal presents an entire assessment of holograms and holography, together with advertisement functions, background, clinical motives, and the way they're synthetic in hundreds of thousands of goods from trademarks to charge cards. Key gains - entire review of the sphere together with its heritage, technology, purposes and construction concerns - Separate chapters on: Holographic Interferometry, laptop Generated Holograms on the internet, Holographic Embossing, Holographic safety, Laser Electronics, Holographic garage platforms, and extra - dialogue of business makes use of, e.g., protection, leisure, rates, and digital fact - Accompanying CD-ROM contains holographic photographs, animations and sites - Foreword via Michael Erbschloe - loose pattern Hologram
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Additional info for Holograms & Holography: Design, Techniques, & Commercial Applications
They do not have a shiny mirror back; they can be produced clear, with a black background or a color of the customer’s choice. The cost of this material is about three to four times more than embossed holograms. Both types work well for different applications. Design, budget, and other specifications will determine which process to choose. Now, let’s look at pulsed laser holography. 3674 P-01 3/5/01 10:40 AM Page 11 PRACTICAL HOLOGRAPHY 11 Pulsed Laser Holography The images that can be used to make holographic displays are produced by bursts from a pulsed laser.
There are two basic waves that come together to create the interference pattern in holography. First and foremost is the wave that bounces off the object that an individual is making a hologram of. Since it bounces off the object (thereby taking its shape), it is called the object wave. You can’t have interference without something with which to interfere. A second wave of light that has not bounced off an object is used to perform this function, and is called the reference wave. Therefore, when an object wave meets a reference wave creating a standing wave pattern of interference, it is photographed and called a hologram.
However, these colors can be used as long as they are within light colors. Remember, the laser is shining red light on your object. The color red next to the color white on your object will all look like a single color. Red print on a white background will disappear. Try viewing your object through a red filter to get a good idea of how it will look in laser light. You can use hot glue to adhere them to another plate of glass that you press up against the back plate (the far side) of the glass being used as your film holder.
Holograms & Holography: Design, Techniques, & Commercial Applications by John R. Vacca