View Single Post
Old 01-09-2014, 09:17 PM   #42 (permalink)
christofoo
Master EcoModder
 
christofoo's Avatar
 
Join Date: Mar 2012
Location: Salt Lake City
Posts: 292

00C - '00 Toyota Corolla
90 day: 43.54 mpg (US)
Thanks: 147
Thanked 190 Times in 73 Posts
Quote:
Originally Posted by mcrews View Post
...Next,
Not sure where you get the 3x from. PLEASE ( for the third time) look at the hand written failed numbers....one is 19TIMES brighter.
There is a standard design perameter set up for lamps. the hid in the halogen lamp is 19x too bright.
Again, answer the simple question...Does the lamp generate the multiple or is the hid bulb 19x too bright?
mcrews is referring to illuminance, others are referring to luminous flux, is that not so?

Illuminance can vary across the field (non-uniformity), and at a given point is a function of luminous flux, source shape and luminary design. 'Multiplication' may arise from 'mismatch' between source shape or location and luminary design.

(... sorry I don't have time to be totally certain I'm following along, awfully busy, just trying to help...)

Last edited by christofoo; 01-10-2014 at 12:19 AM..
  Reply With Quote
The Following User Says Thank You to christofoo For This Useful Post:
Cobb (01-09-2014)