the larger end of the shroud 11 and are used as described in fig6 we show an embodiment of the unit wherein a connecting bar 21 is used to connect to bases 9 this bar 21 may either be hinged or solidly connected to bars 9 but a hinged version is preferred this embodiment is preferred where the unit is routinely used and a carrying case 1 is not only unnecessary but would take up desireable desk space in fig7 we show a side view of the unit installed with the shroud 11 covering a light path from crt screen face 25 to section 5 of a projection system with upper section 4 of the optical projection system turned to project an image 23 of the screen face 25 on the wall at essentially a right angle to computer screen face 25 the user may adjust the size of image 23 to be most comfortable for his use in fig7 we show an embodiment primarily meant to be used with a desk top computer where the user may spend extended periods of time in front of the computer screen in this embodiment the image from the computer screen 25 is projected on a vertical surface such as a wall 23 at right angles to the computer screen 25 of course the image may be enlarged to be most comfortable for the user shroud 25 which is preferably conductive to neutralize electromagnetic radiation encloses a light from screen 25 to the inlet.