GreenXenon
Guest
Wed Jun 09, 2010 7:03 am
On May 27, 5:18 pm, d...@manx.misty.com (Don Klipstein) wrote:
Quote:
In <c8e1678f-4b0c-473b-b0ec-16ded0d74...@a27g2000prj.googlegroups.com>,
GreenXenon wrote:
SNIP to here to edit for space
What happens if one attempts to force a subpixel to emit an intensity
of light far greater what the subpixel is capable of?
I would guess the same thing as with a neon glow lamp. The result is an
excessiverate of sputtering of the cathode material. Sputtering is
dislodgement of cathode material atoms by positive ions. The result
resembles evaporation. It gets much worse when "abnormal glow" occurs.
"Abnormal glow" is glow discharge with above-normal voltage drop in the
cathode layers of the glow due to current density exceeding a natural
current density of the cathode layers of the glow discharge.
It appears to me that sputtered cathode material would darken the
subpixel and possibly darken adjacent subpixels.
--
- Don Klipstein (d...@misty.com)
What if the subpixel is electrodeless lit via electrodeless
flourescence?
Here is more info on electrodeless flourescent lamps:
http://en.wikipedia.org/wiki/Electrodeless_lamp#Magnetic_Induction_Lamps_.28AKA_Induction_Lamps.2C_Fluorescent_induction_lamps.29
Don Klipstein
Guest
Wed Jun 09, 2010 8:32 am
In <701aac7d-8ce7-4144-9568-45e459de0e3f_at_s4g2000prh.googlegroups.com>,
GreenXenon wrote:
Quote:
On May 27, 5:18 pm, d...@manx.misty.com (Don Klipstein) wrote:
In <c8e1678f-4b0c-473b-b0ec-16ded0d74...@a27g2000prj.googlegroups.com>,
GreenXenon wrote:
SNIP to here to edit for space
What happens if one attempts to force a subpixel to emit an intensity
of light far greater what the subpixel is capable of?
I would guess the same thing as with a neon glow lamp. The result is
an excessive rate of sputtering of the cathode material. Sputtering is
dislodgement of cathode material atoms by positive ions. The result
resembles evaporation. It gets much worse when "abnormal glow" occurs.
"Abnormal glow" is glow discharge with above-normal voltage drop in the
cathode layers of the glow due to current density exceeding a natural
current density of the cathode layers of the glow discharge.
It appears to me that sputtered cathode material would darken the
subpixel and possibly darken adjacent subpixels.
What if the subpixel is electrodeless lit via electrodeless
flourescence?
<SNIP links to that>
Keep in mind that the subpixel is extremely small, and also that there
are a few "economies of scale" that disfavor efficiency as size of the
light-emitting-unit is reduced.
In addition, I have a dislike to adding a million or two primary
windings and the same number of maybe-necessary ferrite cores of a
size, likely-also-shape, yet to be manufactured...
For that matter, I doubt even "4C4" ferrite or "powdered iron" improves
much over no magnetic core at all at the likely-UHF-range frequencies that
would be necessary even in the unlikely event that "4C4" ferrite or
most-finely-powdered favorable iron alloy has little more loss in
watts-per-(volts/turn) terms at 500 MHz as at 30 MHz.
--
- Don Klipstein (don_at_misty.com)
