A little experiment I just did:
Looks unconventional, but works pretty good!
Mitch
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I think it looks great Mitch!
Great idea! I think you can remove a little of the clear plastic that sticks out. The part that creates the light is further back.
Arthur P. Bloom posted:Great idea! I think you can remove a little of the clear plastic that sticks out. The part that creates the light is further back.
Yep! I've ground the lenses flat in the past. However, for this particular application, best to leave 'em as is.
You could slip copper tubing over the bulb so light only goes straight out.
Can you provide P/N and vendor? I have a couple I'd like to do as you've done.
Thanks.
RJR posted:You could slip copper tubing over the bulb so light only goes straight out.
Not a bad idea!
Pingman posted:Can you provide P/N and vendor? I have a couple I'd like to do as you've done.
Thanks.
Here ya go!
http://www.ebay.com/itm/120932412635
http://www.ebay.com/itm/120932415457
Mitch
That was cool!!!!!
RJR posted:You could slip copper tubing over the bulb so light only goes straight out.
Being an LED, doesn't most of the light already go straight out in a relatively narrow cone?
---PCJ
RailRide posted:RJR posted:You could slip copper tubing over the bulb so light only goes straight out.
Being an LED, doesn't most of the light already go straight out in a relatively narrow cone?
---PCJ
There is some side leakage, particularly in a darkened room:
Mitch
M. Mitchell Marmel posted:RJR posted:You could slip copper tubing over the bulb so light only goes straight out.
Not a bad idea!
Pingman posted:Can you provide P/N and vendor? I have a couple I'd like to do as you've done.
Thanks.
Here ya go!
http://www.ebay.com/itm/120932412635
http://www.ebay.com/itm/120932415457
Mitch
THANKS, Mitch.
Which base--the listing mentions several varieties?
Pingman posted:THANKS, Mitch.
Which base--the listing mentions several varieties?
The bulbs will fit in any of those bayonet bases, actually, which is why the varieties are mentioned.
Mitch
M. Mitchell Marmel posted:
Hey Mitch, if the side leakage bothers you just paint the sides black!
M. Mitchell Marmel posted:
One of the things that shows up well is the fact that the green is the correct color for signalling. For the technically minded, it is 504nm. Nanometers, that is. This comes from the days of incandescent lamps behind lenses that are almost blue. The yellow filament makes the green color. If you can look at an old real railroad signal you can see the bluish lens.
Atlas signals use the technically correct LED colors.
Lou N
RailRide posted:RJR posted:You could slip copper tubing over the bulb so light only goes straight out.
Being an LED, doesn't most of the light already go straight out in a relatively narrow cone?
---PCJ
No not necessarily. An LED die actually emits light from all 6 sides. It is the lensing that focuses the beam.
I have a project at work that uses LED die for a photodynamic therapy device, an implant that stimulates a pharmaceutical that is injected. The printed circuit board is transparent so light comes out both sides of the board.
Lou N
The 153's large bulbs aren't prototypical. The lights were pretty-well focused down the track. The copper tubes, with angled ends mimicing sunshades, look more prototypical.
Great job!
-Eric Siegel
RJR posted:The 153's large bulbs aren't prototypical. The lights were pretty-well focused down the track. The copper tubes, with angled ends mimicing sunshades, look more prototypical.
Yes, well, toy trains and all that there. ^.^
ericstrains.com posted:Great job!
Thankee kindly!
Mitch
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