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Filtered by Technical Features — 116 articles

Francis Tuffy

24 March 2023

4 min read

Perfect Particles Make 3D Structurally Coloured Objects

The particle theory of matter sits at the centre of the scientific methodology. Objects that appear uniform, solid and homogeneous at the everyday macroscopic scale are, when you investigate them with sufficient resolution and detail, in fact made up of particles (atoms, molecules and compounds) that are not the same entity as the object they form.

Technical Features

Francis Tuffy

24 March 2023

5 min read

Investment Demonstrates Breadth of Hologram Opportunities

Investment funds continue to flow into the diffractive optics sector. And as the following examples show, it isn’t necessarily into the usual suspects of document security, brand protection or packaging decoration.

Companies Technical Features

Francis Tuffy

24 March 2023

2 min read

Holopresence Demonstration at MWC 2023

Mobile World Conference (MWC) Barcelona 2023 (27 February to 2 March) saw a whole range of mobile comms use cases – including a 3D holographic telepresence system from Telefónica.

Events Technical Features

Francis Tuffy

24 March 2023

3 min read

Holographic Calling Card Sent into Space

Holographic textiles are often used in fashion and design to add a futuristic and eye-catching element to clothing, but an article in The Cornell Chronicle (produced by Cornell University in Ithaca, New York) explains how holographic effects are being used to dress a satellite.

Studies, Reports Technical Features

$Diffractive vs Reflective Waveguides$

Francis Tuffy

22 Feb. 2023

3 min read

Diffractive vs Reflective Waveguides

The stakes are high in the race for lightweight, energy efficient waveguides for smart glasses. In this article adapted from ZDNet, Israeli augmented reality optics company Lumus explains why it believes its range of reflective 2D waveguide technology beats the diffractive competition.

AR & VR Technical Features

Francis Tuffy

22 Feb. 2023

2 min read

Machine-Readable Holograms from IQ Structures

IQ Structures, a research and production organisation focused on nanotechnology engineering, part of the IQS Group, has introduced holograms that can be authenticated automatically. All it takes is a normal light and a mobile phone app.

Brand Protection ID & Secure Documents Technical Features

Francis Tuffy

26 Jan. 2023

3 min read

3D Zero Order Imaging – the People’s Choice

As is the tradition, the winners of the Excellence in Holography 2022 Awards were judged by Board members of the International Hologram Manufacturers Association (IHMA) and presented as part of The Holography Conference Online.

Events Technical Features

Francis Tuffy

26 Jan. 2023

4 min read

MIT Shows Strengths in Physical and Digital Holography

Researchers at the Massachusetts Institute of Technology (MIT) have built a formidable reputation for developing physical holographic origination techniques.

Displays Origination Technology Technical Features

Dr Glenn P Wood

26 Sept. 2022

3 min read

Cold Foil – Hot Topic

A revolution is currently in progress which promises to change the way in which holograms and other OVDs are delivered to packaging substrates.

Security Foils Technical Features

Francis Tuffy

22 Aug. 2022

3 min read

Looking Into Holographic Sights

A little known, but curious, use of a hologram’s ability to reconstruct an image as if it were ‘floating’ in space, is for holographic rifle sights. So how does this relatively new type of aiming system work and what are the advantages and disadvantages?

Free Technical Features Free

Francis Tuffy

12 May 2022

3 min read

Structural Colour Gets Special Attention at ODDS 2022

The phenomena of structural colour – when different wavelengths of light are selectively reflected from a substance, with the remaining wavelengths transmitted or absorbed – is gaining increased attention in the security print industry as an environmentally benign method of creating colour without resorting to dyes or other chemicals.

Events Technical Features

Francis Tuffy

12 May 2022

3 min read

Polarization Holography – a New Field of Holographic Research

In conventional holography, the polarization of the reference and object beams are arranged to be co-linear to achieve the maximum contrast of the interference fringes formed and record the greatest amounts of amplitude and phase information from the original object wave.

Technical Features

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

Perfect Particles Make 3D Structurally Coloured Objects

Investment Demonstrates Breadth of Hologram Opportunities

Holopresence Demonstration at MWC 2023

Holographic Calling Card Sent into Space

Diffractive vs Reflective Waveguides

Machine-Readable Holograms from IQ Structures

3D Zero Order Imaging – the People’s Choice

MIT Shows Strengths in Physical and Digital Holography

Cold Foil – Hot Topic

Looking Into Holographic Sights

Structural Colour Gets Special Attention at ODDS 2022

Polarization Holography – a New Field of Holographic Research

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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