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virtual retinal display (VR) (VRD)

The virtual retinal display (VRD), retinal projector( RP) or retinal scan display (RSD) is a projection technique in which a raster image is projected directly onto the retina of the viewer. Technically, VRD displays, which belong to smart wearables and are built into data glasses, are realized with pico or mini-projectors that redirect the generated image line by line via optics, mirrors or prisms so that it hits the viewer's eye in focus, with the eye focused on the background.

The raster beam is generated by a laser or by light-emitting diodes in the primary colorsred, green, blue. The viewer captures the projection image created in additive color mixing and sees reality as well as superimposed information for augmented reality. He has the impression that the representation is a few meters away.

VRD projection glasses, photo:

VRD projection glasses, photo:

It was not until the development of the smallest and most powerful light-emitting diodes that VRD systems could be developed that were correspondingly small, light and high- resolution and projected a good projection brightness even in daylight.

Virtual retina displays are used, among other things, in data helmets( HMD), as well as in video glasses and data glasses that can combine virtual reality and augmented reality on top of each other.

Englisch: virtual retinal display (VR) - VRD
Updated at: 08.05.2014
#Words: 208
Links: virtual, display, projector, radio port (RP), projection
Translations: DE

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