I just saw this Infocus INL3148 laser projector that uses a color phosphor wheel with Red, Green & Blue segments. Of course the Blue segment may be clear, but the fact that it has Red & Green phosphors & has 5500 lumens, may mean higher power Laser diodes. Anyone seen any projectors with these...
Just finished a couple of these lights . . .
Biggest challenge was proper heat sinking for that continuous 50W power LED . . .
The complete light is 24" tall for size perspective.
Bulb weights a couple of pounds alone .
I am very impressed with this new 2-Cell charger . . .
Charges 18650, 26650, 16340, and 14500 Lithium Ion Cells
Selectable Charging Current of 1/2 amp or 1 amp on each channel
Discharges Cells to Determine Capacity
Analyses Cells to Determine Internal Resistance
Comes with 115 VAC adapter, but...
Even though this is a high drain lithium iron phosphate cell,
the red hot strap could melt thru the PVC tube at the positive end,
causing even more dangerous higher currents !
Does show the potential damage of shorting a charged cell's terminals.
Panasonic has released a new NCR18650PD 18650 3.7V 2900mAh Li-ion Rechargeable Battery.
It is capable of 10A discharge @ 20' C.
I think this cell will make the IMR 2000mah cells obsolete.
It has a huge capacity . . . ,
for a high-discharge cell.
New project I have been working on:
A portable Lab laser with 650nm Red, 445nm Blue and 532nm Green primaries.
It is powered by two #18650 3400mah Panasonic cells for run times of over 2.5 hours.
(Or 9-12 VDC @ 1 amp plug-in supply)
Switches control White, Red, Blue, Green, Magenta...
Sanyo/Panasonic 3500mah 18650 Cells & Chargers Available!
It is available for users who need the ultimate power.
Also, charging to 4.2 VDC for existing chargers.
Very Low Internal Resistance (26 milliOhms) allows 10 Amp Discharge Ability.
All cells come with + terminal button for series...
Interesting comparison of cell manufacturers by Pike Research for automotive applications:
Rating gives top marks to LG for execution and strategy.
LG has contracts to supply GM Volt,
and new Ford hybrid with lithium ion cellls.
Finished final testing the new 4.35 VDC Charger tonight.
It is designed for ONLY the new generation of Samsung, Sanyo and LG 3000mah cells,
using higher voltage technology.
It charges @ 900 ma for only one cell (50% more than my standard charger).
It is checked for proper charging voltage...
This TO-56 Green laser should fit many of the hosts we are currently using:
Here is a little more info on the very-efficient PPLN (periodically poled lithium niobate) conversion:
Should be good for 120mw or so.
Not a laser, but a lot of power input in this build.
The PT54 LED is from our favorite C_s_o Projector.
It is rated @ 8 amps, but in a handheld host that is too much.
I decided to operate @ 3 amps, for a total input of 12 watts.
The first requirement was cutting the solid copper base to fit...
. . . Experience All Your Laser's Real Power ! !
. . . Move Up to More Powerful Batteries
These Batteries have been thru Stringent UL #1642 Testing,
and have new "Safety Layer" construction
. . Panasonic Cells . . 55 mOhms !!
Now available with Round Buttons on Positive Pole...
This is my latest 445 build for long run times (15 min. or so).
I started with this mount for the Aixiz module:
It is a very tight press fit with thermal compound.
The back side of the Aixiz module has a generous amount of heat-conductive epoxy in contact with the aluminum heatsink.
These high-power 445nm laser diodes require substantial heat sinks to operate @ 500 ma and higher.
This is the heat sink design on my new 445nm build:
The top cap tightens down on the aluminum disc and finned heat sink.
It has 2.5 oz. of finned aluminum in good thermal contact with the diode...
Finished some preliminary Flat Plastic Red diode testing last night.
From looking at the calibrated Scientech Power meter test results ...
I think that these diodes do have the capability to operate at higher power levels
than the LOC's we have been using.
The operating voltages were...
I just finished final testing on a new light that combines 3 PHR diodes.
The light was designed for 405nm UV inspection duties,
with fairly long duty cycles (~15 min.).
I used a triple reflector to concentrate the light in a narrow beam.
It does not utilize aspheric lenses on the PHR's.
"Optical Trapping" experiments capture smoke particles in the laser beam at or near the focal point of the beam.
When the dielectric smoke particles drift outside the focal point,
diffraction of the laser beam creates an opposing force & pushes them back toward the focal point.
This is a...
Saw this interestring photo today and remembered some LPF people asking about the small size of greens on the new pico-projectors.
"The laser device produces green laser light with a wavelength of 532nm by changing the wavelength of laser light that is emitted from a quantum dot laser and has a...