Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Transcript of Military optics
2. As the photons enter the goggles, they strike a light-sensitive surface called a photocathode. It's a bit like a very precise solar panel: it's job is to convert photons into electrons (the tiny, subatomic particles that carry electricity round a circuit).
3. The electrons are amplified by a photomultiplier, a kind of photoelectric cell. Each electron entering the photomultiplier results in many more electrons leaving it.
4. The electrons leaving the photomultiplier hit a phosphor screen, similar to the screen in an old-fashioned television. As the electrons hit the phosphor, they create tiny flashes of light.
5. Since there are many more photons than originally entered the goggles, the screen makes a much brighter version of the original scene. Remember to As seen on COD 4. http://tarorat.blogspot.com/2009_05_01_archive.html I eat prezi's for breaky WAKA WAKA WAKA