Quote:
Originally Posted by Richwood
Does the Oasis actually use full spectrum adjustable output RGB LEDs or 1/2 cool white and 1/2 warm white to yellow output LEDs and vary the output of each type depending on the color temperature setting adjustment? I find the latter more likely as otherwise why 25 LEDs being used on the Oasis G10 and 12 for the G9. The warm LEDs are phosphor coated to give the warmer light I believe and there is going to be factory variations in the coating thickness which will affect the color temperature output. The human eye is amazingly color sensitive which is why things like pearl color matching in Japan is so labor intensive. Not too surprising to me that there is some variation unit to unit in color of the warm lighting on the Oasis readers. IMO probably unavoidable with manufacturing tolerances on electronic components.
|
It appears that there is white leds without warm setting, and additionally yellow/orange added on top when warm setting is enabled. My Oasis 2 and the Oasis 3 look near identical without warm.
Attached are some pictures showing how warm setting changes at 0,8,16, and 24 setting. The Oasis 2 on the left as reference unchanged. To my eyes it looks more yellow in real life, but I chose manual white balance setting of 6600°. Not sure how to set my phone screen to 6600°, so that the picture matches. Otherwise with automatic white balance the Oasis 2 changes color as well.