It has been touted as the future of computing, the next revolution in technology, and also been barred from many establishments before it even goes on sale.

However, until now, it has not been clear exactly how Google Glass, the search giant's eyewear, actually works.

Luckily, a designer has taken it upon himself to create an infographic showing exactly how Google manages to project an image into a user's view.

How Glass works: A German designer created this infographic to show how the eyewear projects an image

The infographic also reveals how Glass is focused so the image always appears sharp

WHERE TO LOOK?

'Depending on how you wear the Google Glass, the layer appears in the upper right corner or in the middle of the visual field,' says Missfeldt.

'When the Google Glass is high on the nose, so that you can practically see through underneath, you must turn the eye up to view the image sharp.

'Because the prism is semi-transparent you can also place it directly in front of the pupil. In that case, you have the sharp layer directly in front of the eyes.'

Martin Missfeldt, a German designer, said he created the graphic to show people how the Google system works.

'Google Glass is a technical masterpiece,' he said.

'It combines numerous functions and features in a very small unit. In addition to phone and camera (photo, video), it offers Internet connection, including GPS.'

Glass is set to go on sale later this year, although will initially be limited to developers and selected members of the public.

It is expected to cost under £1,000 when it becomes widely available.

'The core feature of Google Glass is a visual layer that is placed over the reality ('augmented reality'), explains Missfeldt

'This layer opens a door to amazing new possibilities.

'In the Google Glass contains a mini-projector, which projected the layer via a clever, semi-transparent prism directly on the retina in the eye.

'Because of this the image, even though it is so close to the eye, is sharp and clear.

'You can move the front part of the Google Glass easily to optimize the focus.'

Google has so far only released limited video footage of how Glass will actually look

Augmented reality: This demonstration shows off navigation information similar to what Google currently offers via its Maps service

Wearing glasses and using glass could be impossible, warns Missfeldt

Missfeldt also warns those wearing glasses with prescription lenses may struggle.

Google co-founder Sergey Brin demonstrating Google's new Glass - but the firm has so far refused to reveal exactly how it works

'The biggest challenge for Google will now be to make the Google Glass also usable for people with normal glasses (to compensate for a low vision).

'In this case the Google Glass has to be placed ahead of normal glasses - which doesn't look and feel well or like a glass.

'Or Google has to manufacture individual customized prisms, but this would be considerably more expensive than the standard production.

It comes as it emerged people wearing Google Glass eyewear could be banned from strip clubs, cinemas and casinos because their owners don’t want them filming there.

Bosses for establishments in the US said that due to privacy concerns they would be asking anyone wearing the glasses to remove them or they won’t be let in.

Lap dance clubs said that they would treat Google Glass wearers the same as anyone caught filming a stripper - and would kick them out.