I tried to make a linear slow (vertical) axis which uses coils etc. It is easy to actuate the mirror to move linearly, but it is almost impossible to stop it and get back to the starting point during the flyback time because of the considerable moment of inertia.
When the beam scans sinusoidally this does not mean that successive lines will not be parallel.
However the content of the video will be somehow distorted.
You may view the picture of scanned lines from the last link.
[SIZE="4"]There is no trick
Scanning scheme is as follows:
First line of the first feld is scanned from left to the right.
Second line of the first field is scanned from left to the right with the video content inverted in time.
Same technique is applied to the successive fields which are...
In this project, by means of two mirrors (which can be tilted about two perpendicular axis) we deflect the laser beam so as to scan a rectangular screen and modulate the laser source to obtain a colored image on the screen. We don’t make use of sophisticated devices such as MEMS micromirror and...