200mw 650nm laser (red) pointer - home made version 2
This is version 2 of my home made laser pointer by Martijn

This laser is a focusable, 650nm (red) laser pointer and measures 214mw peak - proof here

Version 2 of my home made laser has an improved focusable tip, making it much easier to focus. It also outputs slightly more than version 1 so will burn a bit better. Although it outputs more power its just as stable as version 1.

Click here to view version 1

This laser is fantastic, it is focusable so is perfect for burning. You can clearly see a small dot on a building 1 mile away! The beam is excellant on this laser, it can light a match in seconds without any additional lens. The power of this laser is amazing, it burns so so well.

The spec

Size: 140mm x 14mm
Weight: 50g
Wavelength: 650nm
Laser Body: Silver Polished Brass
Transverse Mode: TEM00
Output Power: >200mW
Beam Divergence: 1.0mRad
Beam Diameter: -4.0mm @ aperture
Power Consumption: 200mA
Power supply: 2 X AAA 1.5V
Battery Lifetime: 2-3 hours
Switch: Momentary On/Off Button
Expected lifetime: >5,000 hours
Duty cycle 1 min on, 30 sec off

Burning - version 2 burns slightly better than version one, due to all of them out putting slightly more power.

40 balloon pop



Burning card




popping a balloon instantly at 2.5-3 metres




Lighitng a match at 1 metre (once held steady it lights pretty much straight away)


 

 

Laser-Man Gallery