NC 'custom' LED lights retrofitted?

[Pat Ford]

got a url??

Previously, you (Phil Martin) wrote:
{ We make many lenses, diffuser, holders etc for these LED's that may be
{ useful.
{ ----- Original Message -----
{ From: <don.broadus at exeloncorp.com>
{ To: <diy_efi at diy-efi.org>
{ Sent: Tuesday, January 30, 2001 6:38 PM
{ Subject: RE: NC 'custom' LED lights retrofitted?
{ 
{ 
{ > The white LED is amazing in its brightness, the blue /violet LED's are
{ > brilliant in color . I haven't found the Nichia green yet. I bought the
{ book
{ > "The Blue Laser Diode" by the Nichia inventor of the blue/green and blue
{ > laser diode. expensive book but very interesting.
{ >
{ > > -----Original Message-----
{ > > From: Phil Martin [SMTP:phil at muts.freeserve.co.uk]
{ > > Sent: Tuesday, January 30, 2001 8:06 PM
{ > > To: diy_efi at diy-efi.org
{ > > Subject: Re: NC 'custom' LED lights retrofitted?
{ > >
{ > > I work for a company that use thousands of led's a week from HP led's in
{ > > red
{ > > , amber and also Nichia white, green and blues. You have to be careful
{ > > when
{ > > buying these as they come from different bins and the brightness can
{ vary
{ > > hugely. I have some 15 degree white LED's that are good enough for a
{ small
{ > > torch.
{ > >
{ > > All the led's have a life of aprox 127 years at 20mA except for the
{ white
{ > > which are at half brightness after 18 months continuous. This is because
{ > > thay are essentially a UV led with a white phosphor and the UV kills the
{ > > plastic.
{ > >
{ > > Run them all at 30mA and you should have no problems under nearly any
{ temp
{ > > conditions.
{ > >
{ > >
{ > > ----- Original Message -----
{ > > From: "Pat Ford" <pford at qnx.com>
{ > > To: <diy_efi at diy-efi.org>
{ > > Sent: Tuesday, January 30, 2001 3:14 PM
{ > > Subject: RE: NC 'custom' LED lights retrofitted?
{ > >
{ > >
{ > > > To make matters worse the leds current requirements are temp
{ dependent.
{ > > >
{ > > > Previously, you (don.broadus at exeloncorp.com) wrote:
{ > > > { it is going to be very hard to get cost in line on even on a group
{ > > buy.
{ > > The
{ > > > { best thing to do is get a bunch of third brake light bars from the
{ > > junk
{ > > yard
{ > > > { and use the high brightness leds off of these. Most red Leds have a
{ > > view
{ > > > { angle of only 15 degrees or so. The new white Leds have a view angle
{ > > of
{ > > 135
{ > > > { degrees but are $2 each.  You can bust out the glass of the old 1157
{ > > bulb
{ > > > { and group 3 leds for
{ > > > { running and 3 for brake light. The current limiting resistors
{ control
{ > > the
{ > > > { brightness
{ > > > {
{ > > > {
{ > > >
{ > > >
{ > > > --
{ > > > Pat Ford                           email: pford at qnx.com
{ > > > QNX Software Systems, Ltd.           WWW: http://www.qnx.com
{ > > > (613) 591-0931      (voice)         mail: 175 Terence Matthews
{ > > > (613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M
{ > > 1W8
{ > > >
{ > > >
{ >
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--
Pat Ford                           email: pford at qnx.com
QNX Software Systems, Ltd.           WWW: http://www.qnx.com
(613) 591-0931      (voice)         mail: 175 Terence Matthews          
(613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8

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