Rainbow hologram
id:
rainbow-hologram-236-6757259
title:
Rainbow hologram
text:
The rainbow hologram is a type of hologram that was invented in 1968 by Dr. Stephen A. Benton at Polaroid Corporation. Rainbow holograms are designed to be viewed under white light illumination, rather than laser light which was required before this. The rainbow holography recording process uses a horizontal slit to eliminate vertical parallax in the output image, greatly reducing spectral blur while preserving three-dimensionality for most observers. A viewer moving up or down in front of a rai
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Rainbow_hologram
date created:
date modified:
2024-02-09T18:35:22Z
main entity:
{"identifier":"Q7284740","url":"https://www.wikidata.org/entity/Q7284740"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/8/85/Rainbow_hologram.jpeg","width":256,"height":195}
fields total:
13
integrity:
14