Comments on: Television Image Enlarged By Revolving Spiral Mirror http://blog.modernmechanix.com/2007/06/08/television-image-enlarged-by-revolving-spiral-mirror/ Yesterday's tomorrow, today. Tue, 02 Dec 2008 22:24:16 +0000 http://wordpress.org/?v=2.6.2 By: jayessell http://blog.modernmechanix.com/2007/06/08/television-image-enlarged-by-revolving-spiral-mirror/#comment-234394 jayessell Sat, 09 Jun 2007 17:27:24 +0000 http://blog.modernmechanix.com/2007/06/08/television-image-enlarged-by-revolving-spiral-mirror/#comment-234394 I had a similar idea for projection TV using lasers. In the same manner as the rotating mirror in a laserprinter, the beam would be swept across the screen by two perpendicular rotating mirrors. Modern digital electronics should be able to sync the vertical and horizontal mirror motors. Even better if a frame buffer would hold the image to be displayed and the projector read the part of the image the mirrors were pointing at. Of course, this would demand uneconomically powerful Red (easy) Green (expensive) and Blue (not sure they exist) semiconductor laser diodes, and a system of dicromic mirrors to reassemble the three beams into one beam. (The process used in 3 tube color cameras, only in reverse.) Unweildy for video, I suspect it could be used for text, like that clock with the oscillating wand. http://www.ptsco.net/Products/ProductDetails.aspx?ProductID=10 I had a similar idea for projection TV using lasers.
In the same manner as the rotating mirror in a laserprinter, the beam would be swept across the screen by two perpendicular rotating mirrors.
Modern digital electronics should be able to sync the vertical and horizontal mirror motors.
Even better if a frame buffer would hold the image to be displayed and the projector read the part of the image the mirrors were pointing at.

Of course, this would demand uneconomically powerful Red (easy) Green (expensive) and Blue (not sure they exist) semiconductor laser diodes, and a system of dicromic mirrors to reassemble the three beams into one beam.
(The process used in 3 tube color cameras, only in reverse.)

Unweildy for video, I suspect it could be used for text, like that clock with the oscillating wand.

http://www.ptsco.net/Products/.....oductID=10

]]> By: Kryten007 http://blog.modernmechanix.com/2007/06/08/television-image-enlarged-by-revolving-spiral-mirror/#comment-233162 Kryten007 Sat, 09 Jun 2007 02:32:10 +0000 http://blog.modernmechanix.com/2007/06/08/television-image-enlarged-by-revolving-spiral-mirror/#comment-233162 Yes! Huzzah for mechanical TV!!! Yes! Huzzah for mechanical TV!!!

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