100mW RED LASER MODULE


100mW Red Diode Laser Module, retail $155.00 (www.mfgcn.com)
Manufactured by (Unknown) for AixiZ Service and International LLC (www.mfgcn.com)
Last updated 09-10-11




(In reference to the envelope I received in the mail on the morning of 05-21-05):
{sung like the Foreigner song "Feels Like the First Time"}
Feels like a flaaaaaash-liiiight...feels like a FLAAAA-aaaash-liiiight!!!
Feels like a flaaaaaash-liiiight...feels like a FL

BREAK IN 50960
READY.
CONT

?UNDEF'D STATEMENT ERROR IN 64738
READY.
Let's try that again...as soon as I opened the envelope, I *knew* it wasn't a flashlight...

Feels like a laaaaaa-sssser...feels like a LAAAAA-aaaaa-ssser!!!
Feels like a laaaaaa-sssser...feels like a LAAAAA-aaaaa-ssser!!!

This is a small, pre-wired red diode laser module. That is, it already includes the optics assembly, and it's ready to connect to any source of 3 volts DC that you happen to have handy; whether that's a pair of 1.5 volt AAA or AA cells, a 3 volt lithium CR2 or CR123A cell, or a "wall wart" type AC adapter that you know has an output of 3 volts DC and can deliver at least 100mA.
It comes prepped with power wires, approximately 5.00" (~12.00cm) in length.

The laser module is ready to go as soon as you receive it.


SIZE



To use the laser module, just connect it to any source of 3.0 to 3.3 volts DC via the included wires. Red is (+) positive, white is (-) negative.
There is no on/off switch; if you wish to use one you will have to supply and connect it yourself.

It is advised you mount this module in a heat sink if you intend to use it for 15 minutes or more at a time.



Because this device runs from any source of 3 volts DC, this section will contain very little additional information.

Current consumption measures 102.1mA at a Vf of 3.327 volts




Photograph of the laser module's business-end, showing the black focus ring.

Because this is a component designed to be installed in something, and not a flashlight, I will not beat it against the corner of a concrete stair or a steel rod, stomp on it, try to drown it in the toilet, run over it, or bestow upon it other misfortunes that may be bestowed upon flashlights, so this section of its web page will be relatively bare.

I currently do not have the equipment necessary for measuring output power, but it appears to emit somewhere between 95mW and 105mW, right about where it ought to be for a CDRH Class IIIb laser device.

When the focus was adjusted so the laser projected a small spot at ~6" and the device was directed toward the dark grey plastic wrist rest of my computer keyboard, a small amount of smoke began to issue from the plastic within several seconds, so yes, the beam power is pretty high. Examining the spot where the laser beam was directed revealed a small melted area, so yes, the laser really did this.

Wavelength appears to be 656nm to 660nm, again, right about where it should be for this device. A handwritten label on the device indicates the wavelength is 658nm, so I believe this label is accurate. This product uses a diode laser, so it can be operated at low voltage (3 volts DC) at relatively low current (just over 100mA).

The collimating lens is adjustable, so you can adjust the beam focus to give you a tight beam close up, or far away. You adjust the focus by turning the black plastic ring at the front of the laser module clockwise or counterclockwise.

This lens assembly can be unscrewed and removed completely; doing so will expose the laser diode inside the casing. You can do this to install line or cross generator optics if desired. These optics should be available from the same source as the laser module itself.


Photograph down the barrel with the lens assembly removed, showing the laser diode. Sorry about the furry picture...my camera's auto focus does not work properly at these distances.

The beam is clean, with no blobs, speckling, or other little evil things (artifacts) surrounding it.


Photograph of the beam reflecting off the brushed aluminum body of a McLux flashlight, at a range of approximately 15'.



Beam photograph at ~15'.




Photograph of the beam itself.


Laser power oputput analysis
Maximum power mode measures 75mW on a LaserBee 2.5W USB Laser Power Meter w/Thermopile when driven with a 16340 lithium-ion rechargeable cell.


Spectrographic analysis
Spectrographic analysis of this laser.


Spectrographic analysis
Same as above; spectrometer's response narrowed to a band between 650nm and 670nm to pinpoint wavelength.
USB2000 spectrometer graciously donated by P.L.


ProMetric analysis
Beam cross-sectional analysis (X-axis).


ProMetric analysis
Beam cross-sectional analysis (Y-axis).

Images made using the ProMetric System by Radiant Imaging.



TEST NOTES:
Test unit was purchased on Ebay on 05-14-05 because a Candlepower Forums member wanted it tested, and was received late on the morning of 05-21-05.



UPDATE: 05-22-05
I left the unit on all night, running at 61.0mA, and its case temperature was 96°F (35.6°C).
The ambient temperature in the testing area never exceeded 75°F (23.9°C).

Product was awarded five stars and placed in The Trophy Case on this website.


UPDATE: 07-06-05
I have had the unit on at ~65mA for the last week or so, and just now measured its case temperature at 101°F (38.3°C).
The ambient temperature in the testing area for this measurement was 80.2°F (26.8°C).


UPDATE: 07-08-05
I have had the unit on at near full power (~110mA) for the last two days, and just now measured its case temperature at 115°F (46.1°C).
The ambient temperature in the testing area for this measurement was 78.6°F (25.9°C).


UPDATE: 07-08-05
Yes, a same-day update. No, you're not seeing things. I just now measured its case temperature at 111°F (43.9°C).
The ambient temperature in the testing area for this measurement was 78.4°F (25.8°C).


UPDATE: 08-19-05
I measured a case temperature of 113°F (45°C) with an ambient temperature of 87°F (30.5°C), with the module operating at near-full output for approximately two hours.


UPDATE: 10-10-05
The case is electrically neutral; that is, it is not connected to the (+) or the (-).


UPDATE: 10-11-05
A retest showed the case to be electrically connected to the (-) negative - though it's not a short circuit with the (-) lead; it must be connected to the (-) after other components. Plan your build accordingly!!!


PROS:
Clean beam with no artifacts
Adjustable focus
Durable construction - shock- and vibration-resistant
Powerful enough to burn things - but I'd expect that out of a 100mW laser
Operates on low voltage DC, such as from batteries


CONS:
Not labelled for CDRH classification - however, this module was intended to be installed in something; not a serious issue
Not water-resistant - however no laser module really is. Will not affect rating


    MANUFACTURER: Unknown
    PRODUCT TYPE: Laser module
    LAMP TYPE: Red laser diode, 658nm
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow; focus is somewhat adjustable
    SWITCH TYPE: N/A
    BEZEL: Metal; laser diode protected by plastic lens
    BATTERY: N/A
    CURRENT CONSUMPTION: 102.1mA at 3.327 volts
    WATER- AND PEE-RESISTANT: No
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: None
    WARRANTY: Only warranted against DOA

    PRODUCT RATING:

    Star Rating





100mW Red Diode Laser Module * www.mfgcn.com






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