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View Full Version : Does the candle power of a car's stop light increased when a reflector is added?


gordhed
Mar 12, 2010, 01:27 AM
Can the candlepower of a flashlight change using different reflectors in the bulb cavity?

In other words, can a reflector increase the candlepower, of a flashlight, over that of the bulb or LED, itself?

kgmercier
Mar 12, 2010, 02:13 AM
If I am not mistaken the candle power is set by the wattage of the bulb and the voltage going to it. P=IxE Changing the reflector could change the coverage area i.e... small rounded on could make it more like a spot light while a larger one would cover a wider area. Making sure the reflective lens is clean and dry will maximize the mirror effect. I hope this helps.

Stratmando
Mar 12, 2010, 07:45 AM
Frensel lenses can make light visible at further distances, don't know if this will help?:
Fresnel lens - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Fresnel_lens)

ballengerb1
Mar 12, 2010, 10:18 AM
Basic answer is no. Actually no matter what material is used once light is reflected it is diminished. Con can concentrate light with a lense but you can't make it stronger than the original power