Le Scénariste a écrit:C'est quoi pour toi un bon rapport q/p stp ?
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Par exemple
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Le Scénariste a écrit:C'est quoi pour toi un bon rapport q/p stp ?
Idematoa a écrit:http://www.kguttag.com/2012/02/01/answering-questions-on-laser-with-lcos-and-lbs/
Traducteur: http://translate.google.fr/translate?sl ... and-lbs%2F
Autre article: http://www.kguttag.com/2011/12/26/direc ... omaticity/
Traducteur: http://translate.google.fr/translate?sl ... aticity%2F
Part 1: http://www.kguttag.com/2011/12/16/diode ... fficiency/
Then we have biggest power wasters for LBS, that of having to analog modulate the laser drive power. First you have the fact that each pixel in the laser beam scanning process must be analog modulated at very high speed and high speed analog modulation wastes power.
Additionally, most people are not aware that the laser beam also has to be modulated due to the varying speed of the laser sweep. If you think about it the laser beam horizontal sweep has to accelerate from zero to the maximum speed at the center of the screen and then decelerate to stop at the far side before returning. To make a solid image appear uniform, the laser drive has to be constantly varying (for a “solid white” image the drive approximates a sine wave). See such as the Microvision White Paper (a figure from which is copied below) and the excerpt (copied below) from the Microvision patent application”Apparatus and Method for Interpolating the Intensities of Scanned Pixels“:
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