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The VRD was invented by Kazuo Yoshinaka of Nippon Electric Co. in 1986.<ref>DISPLAY DEVICE published 1986-09-03 (Japanese publication number JP61198892)</ref> Later work at the [[University of Washington]] in the [[Human Interface Technology Lab]] resulted in a similar system in 1991. Most of the research into VRDs to date has been in combination with various [[virtual reality]] systems. In this role VRDs have the potential advantage of being much smaller than existing television-based systems. They share some of the same disadvantages however, requiring some sort of optics to send the image into the eye, typically similar to the sunglasses system used with previous technologies. It also can be used as part of a [[wearable computer]] system.<ref>[http://www.hitl.washington.edu/projects/vrd/ Virtual Retinal Display (VRD) Group]</ref>
The VRD was invented by Kazuo Yoshinaka of Nippon Electric Co. in 1986.<ref>DISPLAY DEVICE published 1986-09-03 (Japanese publication number JP61198892)</ref> Later work at the [[University of Washington]] in the [[Human Interface Technology Lab]] resulted in a similar system in 1991. Most of the research into VRDs to date has been in combination with various [[virtual reality]] systems. In this role VRDs have the potential advantage of being much smaller than existing television-based systems. They share some of the same disadvantages however, requiring some sort of optics to send the image into the eye, typically similar to the sunglasses system used with previous technologies. It also can be used as part of a [[wearable computer]] system.<ref>[http://www.hitl.washington.edu/projects/vrd/ Virtual Retinal Display (VRD) Group]</ref>
A Washington-based startup, [[MicroVision, Inc.]], has sought to commercialize VRD. Founded in 1993, MicroVision's early development work was financed by US government defense contracts and resulted in the prototype Head-Mounted Display, Nomad<sup><ref>DQC BUREAU - JUNE 16, 2004--VIRTUAL RETINAL DISPLAY: Your Eye Is The Screen http://www.dqchannels.com/virtual-retinal-display-your-eye-is-the-screen/</ref></sup><sup><ref>Photonics Media--Microvision Ships Nomad Personal Display Systems http://www.photonics.com/Article.aspx?AID=11502</ref></sup>.
A Washington-based startup, [[MicroVision, Inc.]], has sought to commercialize VRD. Founded in 1993, MicroVision's early development work was financed by US government defense contracts and resulted in the prototype Head-Mounted Display, '''Nomad'''<sup><ref>DQC BUREAU - JUNE 16, 2004--VIRTUAL RETINAL DISPLAY: Your Eye Is The Screen http://www.dqchannels.com/virtual-retinal-display-your-eye-is-the-screen/</ref></sup><sup><ref>Photonics Media--Microvision Ships Nomad Personal Display Systems http://www.photonics.com/Article.aspx?AID=11502</ref></sup>.


The first aftermarket automotive [[Head-Up Display]] using this direct-to-eye retinal scanning method was designed by [[Pioneer Corporation]]. In 2012, Pioneer’s AR-HUD<sup><ref>Computerworld (Jay Alabaster IDG News Service--Jun 28, 2013) Pioneer launches car navigation with augmented reality, heads-up displays June 28, 2013 http://www.computerworld.com/article/2498299/personal-technology/pioneer-launches-car-navigation-with-augmented-reality--heads-up-displays.html</ref></sup> was launched in Japan. AR-HUD's core technology involves a laser beam scanning display developed by MicroVision, Inc..
The first aftermarket automotive [[Head-Up Display]] using this direct-to-eye retinal scanning method was designed by [[Pioneer Corporation]]. In 2012, Pioneer’s '''AR-HUD'''<sup><ref>Computerworld (Jay Alabaster IDG News Service--Jun 28, 2013) Pioneer launches car navigation with augmented reality, heads-up displays June 28, 2013 http://www.computerworld.com/article/2498299/personal-technology/pioneer-launches-car-navigation-with-augmented-reality--heads-up-displays.html</ref></sup> was launched in Japan. AR-HUD's core technology involves a laser beam scanning display developed by MicroVision, Inc..


== See also ==
== See also ==

Revision as of 16:31, 11 August 2016

Not to be confused with Retina Display.
A diagram showing the workings of the virtual retinal display

A virtual retinal display (VRD), also known as a retinal scan display (RSD) or retinal projector (RP), is a display technology that draws a raster display (like a television) directly onto the retina of the eye. The user sees what appears to be a conventional display floating in space in front of them.

History

In the past similar systems have been made by projecting a defocused image directly in front of the user's eye on a small "screen", normally in the form of large glasses. The user focused their eyes on the background, where the screen appeared to be floating. The disadvantage of these systems was the limited area covered by the "screen", the high weight of the small televisions used to project the display, and the fact that the image would appear focused only if the user was focusing at a particular "depth". Limited brightness made them useful only in indoor settings as well.

Only recently a number of developments have made a true VRD system practical. In particular the development of high-brightness LEDs have made the displays bright enough to be used during the day, and adaptive optics have allowed systems to dynamically correct for irregularities in the eye (although this is not always needed). The result is a high-resolution screenless display with excellent color gamut and brightness, far better than the best television technologies.

The VRD was invented by Kazuo Yoshinaka of Nippon Electric Co. in 1986.[1] Later work at the University of Washington in the Human Interface Technology Lab resulted in a similar system in 1991. Most of the research into VRDs to date has been in combination with various virtual reality systems. In this role VRDs have the potential advantage of being much smaller than existing television-based systems. They share some of the same disadvantages however, requiring some sort of optics to send the image into the eye, typically similar to the sunglasses system used with previous technologies. It also can be used as part of a wearable computer system.[2]

A Washington-based startup, MicroVision, Inc., has sought to commercialize VRD. Founded in 1993, MicroVision's early development work was financed by US government defense contracts and resulted in the prototype Head-Mounted Display, Nomad[3][4].

The first aftermarket automotive Head-Up Display using this direct-to-eye retinal scanning method was designed by Pioneer Corporation. In 2012, Pioneer’s AR-HUD[5] was launched in Japan. AR-HUD's core technology involves a laser beam scanning display developed by MicroVision, Inc..

See also

References

  1. ^ DISPLAY DEVICE published 1986-09-03 (Japanese publication number JP61198892)
  2. ^ Virtual Retinal Display (VRD) Group
  3. ^ DQC BUREAU - JUNE 16, 2004--VIRTUAL RETINAL DISPLAY: Your Eye Is The Screen http://www.dqchannels.com/virtual-retinal-display-your-eye-is-the-screen/
  4. ^ Photonics Media--Microvision Ships Nomad Personal Display Systems http://www.photonics.com/Article.aspx?AID=11502
  5. ^ Computerworld (Jay Alabaster IDG News Service--Jun 28, 2013) Pioneer launches car navigation with augmented reality, heads-up displays June 28, 2013 http://www.computerworld.com/article/2498299/personal-technology/pioneer-launches-car-navigation-with-augmented-reality--heads-up-displays.html
  • Animations of how a VRD works
  • Lewis, John R. (May 2004). "In the Eye of the Beholder". IEEE Spectrum.
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