645nm ADJUSTABLE
LASER DIODE MODULE

645nm Adjustable Laser Diode Module, retail $9.99
Manufactured by (Unknown)
Last updated 11-07-06




(In reference to the package I received from an Ebay seller at 2:09pm PDT on 10-02-06):
{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 32769
READY.
CONT

?OUT OF DATA ERROR IN 49152
READY.
Let's try that again...as soon as I saw the address on the package, I *knew* it wasn't a flashlight...

CONT

?CAN'T CONTINUE ERROR
READY.
LIST

10 POKE53280,15:POKE53281,15:PRINT CHR$(147);
32767 READ A$
32768 PRINT A$
32769 PRINT A$
40960 END
49152 DATA "{b}Feels like a flaaaaaash-liiiight...feels like a {i}FLAAAA-aaaash-{/i}liiiight!!!{/b}"

READY.
49152 DTTA "{b}Feels like a laaaaaa-sssser...feels like a {i}LAAAAA-aaaaa-{/i}ssser!!!{/b}"
RUN

?SYNTAX ERROR IN 49152
READY.
49152 DATA "{b}Feels like a laaaaaa-sssser...feels like a {i}LAAAAA-aaaaa-{/i}ssser!!!{/b}"
RUN

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

READY.

This is a directly-injected red diode laser module that is advertised to have an output adjustable from 1mW to 5mW via a pot on the laser's circuit board.

The product consists of just one component: the prewired laser module. It is advertised to emit at 645nm, in the red part of the spectrum.


SIZE



To use the laser module, just connect it to any source of 3.0 to 4.5 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.

To adjust the output power, use a #0 phillips screwdriver (the one with the 2mm shaft diameter in my set works well here) and turn the small pot on the driver board behind the laser diode itself.

To adjust the focus, turn the front half of the brass heatsink assembly clockwise or counterclockwise to adjust the beam focus as you see fit.



This product is not designed to have batteries changed in it. Therefore, I do not have to tell you what kind of batteries it needs or which part to kick into the garden with all those hungry, hungry praying mantids.


Here is what a praying mantis looks like.
I found this guy on the morning of 09-08-06 clinging to the basket of my scooter.

At maximum output, current measures 52.9mA on my DMM's 400mA scale.



This is a laser, not a flashlight. So I won't whack it against a steel rod or against the concrete floor of an outdoor patio, run over it with a 450lb electric wheelchair, try to drown it in the toilet bowl or the cistern, throw it, let my housemate's kitties go #1 on it, stomp on it, or subject it to other abuses that a flashlight might have to endure.

This one already failed during testing - I didn't even finish taking power measurements (the power output does not adjust any more - it appears stuck in low), so I don't have any additional information for this web page.

(Update 11-04-06): I received the replacement that I ordered on 11-01-06, and this one appears to function properly.



Beam photograph on the test target at 12".
Imaged bloomed significantly; beam also has no yellow or white in it.

Power measures 0.70176mW (low) and 5.8848mW (high) on a laser power meter intended specifically for this purpose.



Beam photograph on a wall at ~10'.
Beam image also bloomed slightly; some movement occurred too.

Those rectangular graphic things near the top are marquees from:
Midway ''Omega Race''
Sega ''Star Trek''
Williams ''Joust''
Venture Line ''Looping''
Universal ''Mr. Do!'s Castle''
Jaleco ''Exerion''
Gremlin/Sega ''Astro Blaster''
Atari ''Tempest''
Gottlieb ''Q*bert''

upright coin-op arcade video games from the 1980s.


Spectrographic plot
Spectrometer plot of this laser.
Ocean Optics USB2000 Spectrometer on loan from TWO-CUBED.



TEST NOTES:
Unit was purchased on Ebay and was received on 10-02-06.

Sample failed during testing, so I have no option other than to rate it "Zero Stars - Whip Out Your Ding-Dong or Sit On the Commode and Go Wee-Wee On It" and place it in "The Toylet Bowl" section of this website.


UPDATE: 11-04-06
I received the replacement a short time ago today; we'll see if this one whirls down the {vulgar term for feces}bowl or not.

You can obtain these from "The Laser Guy" at www.thelaserguy.com

As you can see, I removed that horrible rating I gave it.


PROS:
Adjustable intensity
Somewhat adjustable beam focus
Low power consumption (52.9mA max. at 3.2 volts DC)


CONS:
First test sample pooped out - it may have just been really rotten luck though


    MANUFACTURER: Unknown
    PRODUCT TYPE: Diode laser module
    LAMP TYPE: 645nm diode laser
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow spot
    SWITCH TYPE: N/A
    CASE MATERIAL: Metal
    BEZEL: Metal; laser diode & lens recessed into body of unit
    BATTERY: N/A
    CURRENT CONSUMPTION: 52.9mA max.
    WATER RESISTANT: No
    SUBMERSIBLE: No
    ACCESSORIES: CDRH laser warning sticker
    WARRANTY: 1 year

    PRODUCT RATING:

    Star RatingStar Rating





645nm Adjustable Laser Diode Module *






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