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| silen7ce:
I bought some Electric Ice buttons online from another arcade enthusiast and noticed that there is lettering that appears to be engraved on the inside of the plunger... I only notice it with red LEDs... Is this normal? Or were these modified? They appear to be A-B-C-D... I'm not sure if it could be the LEDs I am using are brighter than the ones GGG sells? I'm using 5mm 5Vs Which I think are the same? Any opinions are appreciated... |
| SpatzST:
I just installed EI2 buttons and using the Helio9 LED's (very very bright) and that is definitely not the case, no letters... maybe Randy can chime in here. That red button actually looks quite strange, its super bright in the middle and dim elsewhere, it shouldn't be as far as I know. |
| RandyT:
The buttons in the photos are the original EI buttons, not the current EI2 buttons. The original buttons were made from existing molds, which had a mold cavity identifier inside the plunger. With normal lighting, these should not be visible, but you can see that with intense lighting, they are. They are also a different material. A diffusive element placed inside the plunger would probably help with this kind of lighting. Grinding the top of the LED flat could also be of benefit. The current EI2 buttons are from our own molds, have a diffusive surface (no identifiers) inside the plunger and are better for high intensity lighting. They also have a very different bezel and plunger design. |
| Sarver Systems:
Grinding the LED flat will make the light more of a pinpoint. You'd want a nice round top on the LED. That is, if you can even grind the LED. It might be an SMD LED. |
| RandyT:
--- Quote from: Sarver Systems on August 07, 2014, 08:35:48 am ---Grinding the LED flat will make the light more of a pinpoint. You'd want a nice round top on the LED. --- End quote --- Grinding the LED flat will diffuse the light. The only way it would do otherwise is if one were to polish it afterward. There is also a retro-reflector inside many LEDs similar to a reflector cone in a flashlight. This will alter the light produced by the small LED element. Additionally, light expands from the source in a spherical shape, so even a pinpoint of light a given distance from the object being illuminated, would have no choice but to spread over the object based on the distance between the two. Focusing / collimating optical elements are the only things which can alter this behavior. |
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