HLP = Holographic Laser Projection

28 12 2010

How it works?

Holographic Laser Projection – or HLP™ – is a revolution in display technology. The term holographic refers to the inventive method we use to create 2D images.

Using holographic algorithms, we transform the image we want to project into sets of diffraction patterns, which are shown on a tiny microdisplay. When laser light illuminates the microdisplay, the projected image is formed by diffraction.

Diffraction patterns are highly efficient. Instead of blocking light, they steer light to exactly where it is needed and away from where it is not. Calculating the diffraction pattern for each high quality imagewould be too computationally intensive, so we’ve created a more elegant solution.

We calculate multiple patterns, each of which forms a rough version of the image. When viewed in rapid succession, the eye evens out the noise and perceives a single, clearly defined image. So you get efficient, high quality video in real time.

Using lasers means colours appear rich and vivid, and the image is always in focus. HLP™ technology also projects perfectly onto curved surfaces. Its uniquely wide throw angle creates large images very close to the projector. And HLP™ has a class 1 laser safety classification, making it completely eye safe.

These features enable us to integrate infrared sensing technology and create an interactive projector that instantly transforms any flat surface into a touch screen.

Features & Benefits


Compact

HLP™ technology is ideal for miniaturisation, becoming increasingly effective the smaller the size of the components. Our roadmap is consistent with the production of light engines as small as 8cc – that’s roughly the same volume as a USB stick.

Low Cost

HLP™ can use low cost components because it compensates for any optical aberrations by modifying the diffraction patterns on the microdisplay. The system also has a very simple optical architecture that’s ideal for low cost, high-volume manufacture.

Energy Efficient

Unlike conventional projection systems which block light to create dark areas, HLP™ steers all the light to exactly where it’s needed and away from where it’s not, creating very bright, highly efficient displays.

Image Quality

HLP™ uses laser light sources to create bright, high-quality video images without the need for special viewing screens or surfaces. Our patented integrated speckle-reduction techniques remove laser speckle without compromising either the high-quality image or the system’s focus-free operation.

Robust Design

Since each pixel on the microdisplay contributes to every point on the entire image plane, the system is highly tolerant to pixel failure. If a row or column fails on the microdisplay, a conventional projector would lose the corresponding pixels in the projected image. With HLP™ technology, all that happens is the entire image becomes minutely dimmer. This unique feature is of great benefit to safety critical applications, and ensures a good quality image for the lifetime of the product.

Wide Throw Angle

HLP™ technology can deliver a throw angle greater than 90 degrees, creating large images at extremely close proximity to the projector aperture. This opens up entirely new use-cases allowing more mobile, more flexible and more creative applications to be realised.

Laser Classification

Unlike scanned beam systems which have a Class 2 or higher laser safety classification, HLP’s™ unique optical architecture can deliver a Class 1 classification, making the technology and consumer electronics products that utilise it eye safe.

Always in Focus

HLP™ uses laser light sources so there’s no need for a manual focus control. Images remain in focus at all distances from the projector. They can also be projected perfectly onto curved or angled surfaces without distortion, enabling exciting projection geometries to be realised for the first time.

Interactive

HLP’s™ wide throw angle and ability to correct for distortion in the software means we can realise a novel table-down projection trajectory and integrate infrared sensor technology, creating an interactive projector that transforms any surface into a touch screen.

For more info, go here


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