The good news: 2 tiny blue smt LEDs (which were the eyes of my Halloween costume) are still going strong (on 2 x CR016) after running continuously for 5 days! ooh... wrong experiment... :-[
OK, start over
The Good News:
- I just finished my testing.
- The blu-ray is regulating fine - varying the input voltage from 8.5 - 11.15V, current/power stayed constant at 91mA/62mW.
- power was constant with ambient temp varying from 76-80 deg F. (62mW blu-ray; 118mW red)
The Bad News:
[olist] [*]my sensor head is a bit less sensitive at dead-center - can these things be damaged by a focused and overly-powerful beam? I get a more accurate (higher) reading with an unfocused beam - which may partially explain my lower readings here, because the beam is focused.
[*]there is a considerable amount of reflection from the sensing area - is that normal?
[*]we still don't know what Kenom's measuring difference is from.
[*]we still don't know why he could not get it above 75mW.
[/olist]
wrt #3 and #4 - since the driver appears to be regulating ok, there's really no need to mess with it. Other than curiosity, of course, and problem-solving for its own sake. Good thing there are no engineering-mentality people involved, so we don't need to deal with the latter... [sub]:
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I still think though it would be good for Ken to re-check his measurements before they travel overseas. He'd need to really excercise great self-control though, to resist the temptation to open them up and 'fix' them
As has been said many times before, the point here is to compare our meters and establish a standard. So for this first round,
The Original Lasers are the LPF standard.
But subsequently, new LPF standard lasers may be created (for instance, when driver technology improves [sub]:-?[/sub]) - all it would take then would be for a couple of the original testers to measure its output; and then we use their original-standard measurements in relation to our own, to calc a correction factor.
Unless, of course, anybody involved changed or recalibrated their meters in the interim[sub] ;-)[/sub]
Me, I'm going to wait until all results are in - and then I will make a decision as to which measurements I think best represent the 'true' values; and then adjust my meter to reflect that. Unless of course we can all come to a consensus on which value to accept.
hey, Gooey - you ready for your turn?
DanQ