“Reflectance paper”的意思、由来-开放百科全书

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Reflectance paper

释义

History
Notes

{{Advert|2=This article appears like an advertisement for the described technology, contains only marginal information that is almost a verbatim copy of the text found at the linked references.|date=October 2017}}{{External links|date=October 2017}}Reflectance paper is a surface that contains a lattice of mirrored dimples. The paper is printed with color and the angle-dependent reflectance function for each pixel of an image captured with a light field camera such as Lytro. The image then displays differently depending on the angle of incident light in the viewing environment. The technique can be used for example to display the image of a sculpture with its direction-dependent shadow depending on the incidence angle of the light.^[1]

History

As of 2012, researchers at the University of California, Santa Cruz, Hewlett-Packard Laboratories and 3M had together created the first such paper, using a hexagonal lattice of millimeter-sized dimples. Dimple depth was 50 µm, representing 70% of a hemisphere. Mirroring used silver or sputtered aluminum. A 32x32 matrix of light-field information was printed on a transparent mask over the dimples.^[1]^[2]

Notes

1. ^¹{{cite web |first=Brian |last=Dodson |url=http://www.gizmag.com/reflectance-paper-3d-photographic-prints/23734/ |title=Reflectance paper displays photographs in a new light |publisher=Gizmag.com |date=2012-08-21 |accessdate=2012-08-27 }}
2. ^{{cite web |last=Wallace |first=John |url=http://www.laserfocusworld.com/articles/2012/08/siggraph-images-printed-on-reflectance-paper-reflect-light-like-3d-objects.html |title=SIGGRAPH: Images printed on 'reflectance paper' reflect light like 3D objects |publisher=Laser Focus World |date=2012-08-14 |accessdate=2012-09-06 }}

3 : Digital photography|Science of photography|Optics

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