A good overview: http://www.stereo3d.com/hmd.htm http://www.vrealities.com/hmd.html One that could do the trick: http://www.vrealities.com/addvisor150.html actually what we need - if only it weren't sooo old! http://www.ausairpower.net/hmd-technology.html more links: http://www.inition.co.uk/inition/products.php?CatID_=8 http://www.rockwellcollins.com/optronics/ http://www.redwoodhouse.com/wearable/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=5 http://www.myvu.com/ http://www.myvu.com/CategoryGrid4.aspx?afid=22&CategoryId=24 http://www.microvision.com/wearable_displays/index.html http://www.vuzix.com/tactical/commercial_applications.html http://www.vuzix.com/iwear/products_wrap920av.html high res: http://vrlogic.com/html/nvis/nvisor_st.html http://www.nvisinc.com/product.php?id=2 http://www.tekgear.ca/index.cfm?pageID=90&prodid=355§ion=83&nodelist=1,83 This one, perhaps? http://www.trivisio.com/index.php/products some theoretical background: http://www.winslam.com/rlaramee/hmd/laramee01visual.pdf other research: http://www.holoverse.com/hv_hmd_retina.htm http://www.cs.nps.navy.mil/people/faculty/capps/4473/projects/fiambolis/vrd/vrd_full.html patents: http://www.freepatentsonline.com/EP1418458.html http://virtual.lncc.br/~rodrigo/links/AR/node8.html Ooops, they're at it too ... http://www.primidi.com/2005/07/10.html two of these might do the trick: http://www.i4u.com/article2551.html http://www.liteye.com/ prototypes: http://www.wearitatwork.com/Carl-Zeiss-See-Through-HMD.174.0.html http://www.cs.brown.edu/stc/resea/interaction/research_I9.html http://virtual.lncc.br/~rodrigo/links/AR/node8.html Mono: Shimadzu DataGlass2/A HMD