re: Here you go

ER — 11/12/2006 4:05:04 AM (archived)

So as I interpret this, there are three different flavors of LED, a red green and blue type, each emitting in a roughly 30nm wide region of the visual spectrum (approx 400-700 nm). I.e., this is not the combined emission from one LED. I also see there is no emission in the UV or IR region.

If I recall correctly from my astronomy courses, the "FWHM bandwidth" is defined as the width of a rectangle 1/2 the height of the curve having the same area as the total area under the curve.

Thanks.

The whole thread (10 posts)

Just thinking about propulsion. - Bowser - 11/11/2006 8:35:58 PM
- The analogue would be the ion engine - nick hoffman - 11/12/2006 4:00:12 AM
- re: Just thinking about propulsion. - ER - 11/11/2006 9:33:51 PM
  - re: Just thinking about propulsion. - phil - 11/11/2006 10:55:32 PM
    - Thanks, Phil. Do LEDs emit in a broad band of frequencies, or at several specific lines? (n/t) - ER - 11/12/2006 12:11:00 AM
      - Here you go - R.L. - 11/12/2006 2:08:53 AM
        
        re: Here you go - ER - 11/12/2006 4:05:04 AM
        
        re: Here you go - phil - 11/12/2006 1:50:16 PM
        
        I should have known that. - ER - 11/12/2006 2:17:14 PM
        
        There are many flavors, those were 3 common ones... - R.L. - 11/12/2006 4:51:45 AM

Recent posts

On this day in Space/Science

The whole thread (10 posts)