LED Replacements By Guitarman (Read 1,303 times)

[FrankenMech]

I considered turning a 90 Isuzu Trooper into an electric hybrid at one point after it cracked the head for the third time. Rust led me to junk it instead. My Ex never forgave me.

The motor and batteries are only a portion of the conversion cost.

[sitticuss]

I've seen a few new chinese bikes that have dual led head lights they use a magnifying lens. i've heard their nice

[FrankenMech]

A normal LED emits light from the surface of the chip in many directions but only forwards so a lens in front of the chip can collect and concentrate some of that energy. Most of the energy is emitted perpendicular to the chip surface. There are diagrams and information here:
www.google.com/#newwindow=1&q=led+radiation+pattern

Each one of my 'white' lamps have nine chips with lenses in front of them but a lot of light still scatters to the side. High power LED's need a heatsink which gets in the way of using them with a parabolic reflector. The designs get better all the time.

In a normal headlight there is a reflector mounted in front of the filament which reflects light back into the parabolic mirror. Then they also use lenses built into the front of some applications.