Aztlan:
Cita:
Appunto per i trasporti. Siamo ancora lontani da un' applicazione per uso personale come quella suggerita.
Dici?
Retinal Display System Makes HUD Glasses Obsolete
http://www.gadgetreview.com/2008/04/ret ... olete.htmlToday’s personal media player’s, or PMPs, screens are too small. Even worse is the solution: bulky glasses with embedded screens (aka head mounted displays) that obstructs the user’s vision. Brother’s solution is a small and light weight attachment that can be fitted to any pair of glasses, which ‘irradiates low-intensity light’ on to the retina Ultimately, the retina is the display and a result it doesn’t completely obstruct vision.
Don’t expect this retinal imager until 2010, though.wikipedia:
http://en.wikipedia.org/wiki/Virtual_retinal_displayCita:
Military utilities
VRDs were initially developed for military use. Such devices are currently in use with several military units, such as the U.S. Army's Stryker Brigade. The commander of a Stryker armored vehicle can view its onboard battlefield computer with a helmet-mounted daylight-readable display. This allows the commander to observe the surroundings, drive the Stryker, choose the best path and share tactical information at the same time. A similar device is used by fighter and helicopters pilots.
Medical utilities
A system similar to car repair procedures can be used by doctors for complex operations. While a surgeon is operating, he can keep track of vital patient data, such as blood pressure or heart rate, on a VRD. For procedures such as the placement of a catheter stent, overlaid images prepared from previously obtained magnetic resonance imaging or computed tomography scans assist in surgical navigation.
Cameras
In the mass-market of digital cameras, scanned-beam displays provide better image quality at lower power and cost than liquid-crystal-on-silicon and organic LED displays.
Scanned-beam technology is capable of displaying images, the data channel through a digital-to-analog converter controlling the light source to paint a picture on a blank canvas in a display. When an image is captured, the light source is turned on, and the data channel looks at the reflections from the object through an analog-to-digital converter connected to a photodiode. The light source, beam optics, and scanner are essentially the same in both applications.
...già in uso in ambito militare...
il brevetto:
http://www.patentstorm.us/patents/7375701/claims.htmlhttp://www.eipa-patents.org/Optical-Sys ... 541469.htmCita:
Inventors: Furness, III, Thomas Adrian; Kollin, Joel S.;
Assignee: Board of Regents of the University of Washington (Seattle, WA)
Primary Examiner: Brier; Jeffery
Assistant Examiner:
Attorney, Agent or Firm: McAndrews, Held & Malloy, Ltd.
A virtual retinal display utilizes photon generation and manipulation to create a panoramic, high resolution, color virtual image that is projected directly onto the retina of the eye without creating a real or an aerial image that is viewed via a mirror or optics. The virtual retinal display includes a source of photons, the photons being modulated with video information and scanned in a raster type of pattern directly onto the retina of the user's eye. The photon generator may utilize coherent or non-coherent light. Further, the photon generator may utilize color light generators so as to scan a colored virtual image directly onto the retina of the user's eye. The virtual retinal display may also include a depth accommodation cue to vary the focus of scanned photons rapidly so as to control the depth perceived by a user for each individual picture element of the virtual image. Further, an eye tracking system may be utilized to sense the position of an entrance pupil of the user's eye, the detected pupil position being utilized to move the scanned photons so as to be approximately coincident with the entrance pupil of the eye. The detected pupil position may also be used to change the video image scanned onto the retina so that as the user's eye moves, the view perceived by the user changes.
http://www.cc.gatech.edu/classes/cs6751 ... splay.htmlCita:
The Future of VRD Technology
Future systems will be even more compact than present versions once the MEMS-based scanners are incorporated. Edge-emitting, super-luminescent light-emitting diodes (SLEDs) and miniature diode lasers under development will allow direct light modulation. In conjunction with application-specific integrated-circuit technology, these devices will permit the direct fabrication of a VRD display engine incorporating the electronics, light sources, and scanning assembly, all in a compact, hand-held, battery-operated package.
The ultimate goal for the retinal scanning technology is a lightweight eyewear package as below.
Image courtesy of Microvision
The approach can also be adapted to image projection systems. The applications for VRD technology are varied#65533;HUDs, color projections systems for entertainment or flight training simulators, etc. A key area for continued development is an image display system that can augment and enhance a person's task performance.
IN ITALIANO:
http://www.lithium.it/dream0013p1.aspIL SITO DELLA MICROVISION, con apparecchi già in produzione:
http://www.microvision.com/wearable_displays/index.html...come vedi questa tecnologia è già il presente...