Way Outta Control
Join Date: Sep 1999
Location: The Palouse
Thanked 3 Times in 3 Posts
Re: OT what freq of light gives the most visible light
My youngest daughter recently went to an LDS Church Girls camp for a week. Every year we buy her a flashlight... and she comes home and it's destroyed. She's really rough on equiptment.
So, I decided it was time for a change
I went to Target and bought an $18 <a target="_blank" href=http://www.ebtx.com/mech/optolite.html>Eddie Bauer Opto-E-light</a>. It lasted her the 5 day camp.. She couldn' kill it, and I'd bet it was ALWAYS on... you know at night up her nose, in her ear, showing how red her finger tip was, in her mouth... the kid's inventive. But, I've been using it on the car and for comptuer maintance since she got home on the same set of batteries. I'm impressed.
I have an inepxensive Green LED keyring flashlight... and I've seen blue and red. The colors, though pretty are not my cup of tea. I don't like the diminished light at my age. I want as much "visiable" light as I can get, and I favor white.
As light's nothing more than energy and looking at the photoronic discharge of visible light, violet has the most energy and red the least. White is great for most usage because everything is in color that you're looking at. A white light allows better color distinction but can cause pupil dilation, hence the use of Red for map lights.
IMHO if you wnat a LED flashlght for night Map reading... get a small Red LED for that, and keep a larger White LED flashlight for normal usage. I'm going to buy a couple more of these little $5 wonders and install them in my RollBar mounted overhead light assembly as Map Lights.