Rainbow holograms
Rainbow hologram showing the change in colour in the vertical direction,In this method, parallax in the vertical plane is sacrificed to allow a bright well-defined single colour re-constructed image to be obtained using white light. The rainbow holography recording process uses a horizontal slit to eliminate vertical parallax in the output image. The viewer is then effectively viewing the holographic image through a narrow horizontal slit. Horizontal parallax information is preserved but movement in the vertical direction produces colour rather than different vertical perspectives.[40] Stereopsis and horizontal motion parallax, two relatively powerful cues to depth, are preserved.
The holograms found on credit cards are examples of rainbow holograms. These are technically transmission holograms mounted onto a reflective surface like a metalized polyethylene terephthalate substrate commonly known as PET.
How hologram color been made?
Holograms are shooted by laser beam in different angles which figure out different colors - red, green, blue, yellow, etc, in difference viewing angles. C olors of the hologram will change, because when rainbow hologram is turned back and forth depending on the light source and viewing angle, the colors will run through the spectrum - the colors of the rainbow.Different viewing depth of hologram comes from different position of the artwork film we locate when shooting master. Dot-matrix movement efffect comes from countinous hologram dots.
How does design show hologram color?
Holograms artwork design are basically an illusion; they are reflections of light that fool the eye into seeing a three-dimensional image. Therefore, it is impossible to give an accurate representation of a holographic image on a computer screen or paper printout. What you will receive via email or hardcopy is an artwork proof to look over to be sure that the graphics and layout are to your liking, free of typos, etc. The holographic master shooting process involves many detailed steps, so it is very important that all hologram artwork is approved before the project moves into the laser lab for holographic mastering.
How to make artwork for holographic sticker?
Holograms can be made from photos, flat art which is designed by Corel Draw, Illustrator, Photoshop or other software.Artwork file in Corel Draw or Illustrator format is best file for us to seperate overlay design into layers and colors. Adobe Photoshop file, JPG, GIF, is ok, if you cannot design by Corel Draw or Illustrator. The text in artwork file should be converted into curves, so we can open it without change font in it.