Rca left everyone else at the alter

[tubesrule]

Hi old_tv_nut,
I think we're on the same page here. There are two effects that cause color seperation, movement in the source image using sequential scanning, and movement of the observers eyes, which is why I discussed these effects seperately. The source material issue can be controlled in a number of ways, one of which being using progressive material. The issue of movement of the observers eyes will always be a problem on field sequential displays like the CBS, DLP projectors, and many color industrial/medical displays currently in use. This is true when considering one effect at a time.

When considering both issues together, like the case of an object in motion with source seperation, and the observers eye following it, the background will have the expected seperation, but the object being followed will also show a color tail due to the persistance of a CRT. (assuming a CRT display type) This effect was observed during early testing using a computer generated, true 6 field sequential white square bouncing around the screen.

An interesting thing that came out of the demonstration last year was that the CBS color field rate seemed to be at the threshold of perception for some people. While many observers said they percieved no flicker or seperation, others said they could easily see the seperation. It would have been interesting to see how this effect would have been received 50 years later had the CBS system won out.

Darryl