Holograms are pictures that look 3D, unlike the 2D image holograms is used primarily to create an interference of light that affected the picture. By projecting a laser from the same source. Split into two beams, one beam is the beam references aiming directly at the film. Another one of the light beam aiming at an object and reflection to the film. The light from these two sources will be recorded on film in the form of interference (Interference Pattern) which does not resemble the shape of a Master object, causing the image to virtual (Virtual image) depending on the angle of incident light that came. Our exposure of the eyes to one side of the sheet of Hologram 3D Visual occurs. Holograms are created by a process called holography (Holography) by holography is a technique that allows an object to save and saengkrachai. To appear as an object is positioned relative to the original recording. To change the format, location and direction of the system see it as a valid object, as if it is still present, thus making the image appear to be 3D. 3-d holograms is a form of technology that is used as a tool in communication between the remote source and target people in different locations. Can interact one-on-one? Type of hologram 1. white-light hologram recording is the hologram that can only be seen with illumination. With the natural light 2. Hologram images must be illuminated with a laser or optical Wavefront conditions corresponding to a certain degree, is to see 3D images. It may also be divided into transmission holograms, hologram, hologram, hologram, image-plane and reflection in many other categories, creating a hologram divided into 2 steps. As follows:
1. recording (recording of image), as well as recording the interference in complex (Complex interference patterns), which is caused by the laser light beams, each with 2 overlapping (Superposition) of complex interpolation, this bar is recorded on photographic film (Photographic film).
2. create the image (reconstruction of image) is a 3D image creation from the plate.