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Search found 7 matches
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Author Message
  Topic: Polygonal mirror reflection beam Problem
anita1984

Replies: 1
Views: 10178

PostForum: Laser Projects   Posted: Thu Nov 05, 2009 2:00 pm   Subject: Polygonal mirror reflection beam Problem
Hello forum , i have a spindle motor from an HDD and i pasted to this motor 6 facets polygonal mirror, the problem is that the mirrors are not 100% alignment ( it's hand made) and the laser reflected ...
  Topic: Optics : Polygonal mirrors + Laser
anita1984

Replies: 1
Views: 10856

PostForum: Laser Projects   Posted: Wed Jul 01, 2009 6:41 am   Subject: Optics : Polygonal mirrors + Laser
Hello Forum , i have a Polygonal mirror with 6 facets of mirrors , i am working in a project for a scan system without lens . I would like to ask you about a document or books to find the formulas of ...
  Topic: Laser Display home made
anita1984

Replies: 10
Views: 29197

PostForum: Laser Projects   Posted: Sun Nov 30, 2008 12:19 pm   Subject: PhotoTransistor
Hello again,
I attach a laser and phototransistor to the upper side of the polygonal mirror ( the upper side is a metal reflect too ) and i put a black dot, it's a mix between these 2 methods Wink ( ...
  Topic: Laser Display home made
anita1984

Replies: 10
Views: 29197

PostForum: Laser Projects   Posted: Thu Nov 20, 2008 3:18 pm   Subject: Laser Display home made
Waaaaw i like the idea , thank you alot for the important information , waaw i have now 2 methods , thank you , realy nice forum Wink
  Topic: Laser Display home made
anita1984

Replies: 10
Views: 29197

PostForum: Laser Projects   Posted: Thu Nov 20, 2008 11:45 am   Subject: Laser display
Thank you Alan for the important information,so you recommand me to add a infrared beam sensor , this detect the rotation per revolution and send a signal to the microcontroller which can detect the e ...
  Topic: Laser Display home made
anita1984

Replies: 10
Views: 29197

PostForum: Laser Projects   Posted: Thu Nov 20, 2008 7:08 am   Subject: Laser display

There will also need to be a way to detect rotation.

if i know the rotation of the motor , let's say 30 rps , one thing i can't understand it , how the blinking of the laser diode should be with ...
  Topic: Laser Display home made
anita1984

Replies: 10
Views: 29197

PostForum: Laser Projects   Posted: Wed Nov 19, 2008 3:38 pm   Subject: Laser Display home made
Hello Forum , i am new here and new to this domaine ( laser and laser displays ). I have a motor ( polygonal mirrors ) with facets , i can rotate this motor up to 32000 RPM , and i have a normal lase ...
 
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