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Filtered by Technical Features — 124 articles

Prof Nadir Ahmed

22 March 2022

4 min read

Developing Liquid Crystals for Colour Shifting Anti-Counterfeiting

Idvac Ltd is a private company, based in Manchester Science Park, England, that was founded in 2004 to develop new processes and products for holographic, packaging and solar window films. The company is now developing the use of liquid crystals for packaging and security applications.

Technical Features

Francis Tuffy

24 Feb. 2022

2 min read

Smartphone Generated Holograms Are One Sensor Closer

Researchers at the Korea Institute of Science and Technology (KIST) have created 3D digital holograms, by developing a polarisation image sensor with no additional polarisation filter.

Technical Features

$New Technique Reveals How Butterfly Wings Grow into Natural Diffraction Gratings$

Francis Tuffy

19 Jan. 2022

2 min read

New Technique Reveals How Butterfly Wings Grow into Natural Diffraction Gratings

Iridescence and holography are two techniques used in security printing to display colour shifting phenomena that depend on the angle of viewing or illumination of a surface. Colour shifting phenomena also occur naturally in nature, such as the iridescent shimmer of a butterfly’s wings due to the precise structure and arrangement of the microscopic scales on its wings.

Technical Features

Francis Tuffy

25 Nov. 2021

3 min read

Need for Massive Space Telescope Inspires Lightweight Flexible Holographic Lens

Inspired by a concept for discovering exoplanets with a massive space telescope, a team of researchers is developing holographic lenses that render visible and infrared starlight into either a focused image or a spectrum. An exoplanet is a planet that orbits a star outside our solar system.

Technical Features

Latest News

Developing Liquid Crystals for Colour Shifting Anti-Counterfeiting

Smartphone Generated Holograms Are One Sensor Closer

New Technique Reveals How Butterfly Wings Grow into Natural Diffraction Gratings

Need for Massive Space Telescope Inspires Lightweight Flexible Holographic Lens

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