Special note for audio visual users.

Please be advised that for very best results, mirrors should be used in conjunction with standard optical projection units. With this traditional design of optical system, the projected image is reflected by the front surface mirror and only acheives a sharp focus on the viewing screen. Any minor marks, dust, etc., which might in time have been collected by the mirror in use, have little if any effect on the final image. This is because the rays of light at the surface of the mirror, the reflecting point, are 'incoherent'. In other words no particular point of the mirror is responsible for any specific part of the final focused image.

Unfortunately modern 'laser' image projectors (see footnote ) have some minor limitations. Because they send out the image in an ever expanding focused beam, in focus over some distance, any specific part of the reflecting mirror will relate to a particular part of the viewed image. In this way the laser ceases to be a projector, but an efficient monitor of the state of the reflecting mirror.

Please therefore be advised, that we cannot be responsible for possibly poorer than expected results

when using our mirrors in conjunction with' laser' image projectors ( LCD and DLP ).

'Laser' image projectors refered to, do not only use a lens to focus the image, but send out multiple parallel beams of light. The lens at the front of the system has some effect on the focus, but the critical problem is that the image is composed of a myriad of high intensity, individual, pixel sized beams. See illustration