Draft:Kinetic diffraction grating

• Comment: I am very unconvinced about this page. The use of holograms that involve diffraction is mentioned in holography, diffraction, it is standard. A google search does not find extensive descriptions using the term here, so it appears to be a neologism coined by a few but not widely accepted. Ldm1954 (talk) 19:39, 2 March 2026 (UTC)

This is a draft article. It is a work in progress open to editing by anyone. Please ensure core content policies are met before publishing it as a live Wikipedia article. Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL Easy tools: Citation bot (help) | Advanced: Fix bare URLs · Article logs · Draft logs. Last edited by Ldm1954 (talk | contribs) 5 months ago. (Update) Finished drafting? Submit for review

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) The examples and perspectives in this article may not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. (March 2026) (Learn how and when to remove this message) The topic of this draft may not meet Wikipedia's notability guideline for neologisms. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. Notability should be established before publishing this draft or submitting it via the articles for creation process. Find sources: "Kinetic diffraction grating" – news · newspapers · books · scholar · JSTOR (March 2026) (Learn how and when to remove this message) (Learn how and when to remove this message)

A kinetic diffraction grating is a type of diffraction grating designed to create dynamic optical effects, such as motion, colour shifts, or three-dimensional depth, when viewed at a different angle or if the incident light source changes. While traditional gratings are often used for static spectral analysis, kinetic gratings are found in security printing and holography.

Kinetic diffraction gratings function through the precise arrangement of microscopic pixels, each containing a specific grating structure. Unlike a uniform grating, these pixels vary in the density and angle of lines, which determines the wavelength and the viewpoints at which light becomes visible to the observer.^[1]

As the substrate is tilted or rotated, different sets of grating pixels sequentially diffract light toward the viewer's eye. This sequential activation creates the perception of movement, such as a rotating bar, an expanding shape, or a pump effect where colours appear to flow across the image.^[2]

The most common use of kinetic gratings is in the production of Optically Variable Devices (OVDs), often found on banknotes, passports and credit cards in order to prevent counterfeiting.^[3] Since these gratings require sophisticated electron-beam or laser record systems to manufacture, it becomes more difficult for counterfeiters to replicate using standard methods.^[4]

• Holography
• Diffractive optically variable image device
• Interferometry