Gransee
Flashlight Enthusiast
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LEDagent:
Is it just my EV Arc AAA or is this true with all EV Turq. Arcs? The beam centering and quality are just horrible! If it wasn't for it's outstanding brightness, size, and craftsmanship, i would sell it....but won't.
Gransee...if you have any new EVs or ones that are better centered let me know...
check out these pics, you'll know what i mean. <HR></BLOCKQUOTE>
Yes, this does appear to be off center and yes we have ample stock to replace this for you. I am happy to replace this unit.
Based on the pictures, the problem appears to be a bad LED not being caught by QC. The LED is installed properly and does appear to be centered with the body. However, the internal reflector and die of the LED do not appear to be centered.
This is further substantiated by your beam image...
This off centered beam is caused by the LED manufacturer. However, we claim responsibility for the LED making its way into a flashlight and not being caught by our QC procedures. Therefore, we will replace it for you with my apologies.
In a traffic signal, this blue-green's off centered beam would go un-noticed. In a flashlight however, it can be irritating.
Please note that it is normal for the blue-green ("turquiose") part to have a blotchy corona and square hot spot surrounded by a ring. A true color, narrow-angle LED will probally never produce a beam as smooth as a white phosphored LED of the same angle. The phosphor of a "white LED" smooths the beam of the blue die to make a nice gradiant (well, usually).
Being in this business, I have looked at a few LEDs. No two are the same- even from the same batch.
Peter Gransee
President
Arc Flashlight
Is it just my EV Arc AAA or is this true with all EV Turq. Arcs? The beam centering and quality are just horrible! If it wasn't for it's outstanding brightness, size, and craftsmanship, i would sell it....but won't.
Gransee...if you have any new EVs or ones that are better centered let me know...
check out these pics, you'll know what i mean. <HR></BLOCKQUOTE>
Yes, this does appear to be off center and yes we have ample stock to replace this for you. I am happy to replace this unit.
Based on the pictures, the problem appears to be a bad LED not being caught by QC. The LED is installed properly and does appear to be centered with the body. However, the internal reflector and die of the LED do not appear to be centered.
This is further substantiated by your beam image...
This off centered beam is caused by the LED manufacturer. However, we claim responsibility for the LED making its way into a flashlight and not being caught by our QC procedures. Therefore, we will replace it for you with my apologies.
In a traffic signal, this blue-green's off centered beam would go un-noticed. In a flashlight however, it can be irritating.
Please note that it is normal for the blue-green ("turquiose") part to have a blotchy corona and square hot spot surrounded by a ring. A true color, narrow-angle LED will probally never produce a beam as smooth as a white phosphored LED of the same angle. The phosphor of a "white LED" smooths the beam of the blue die to make a nice gradiant (well, usually).
Being in this business, I have looked at a few LEDs. No two are the same- even from the same batch.
Peter Gransee
President
Arc Flashlight