1xAAA PORTABLE LASER

1xAAA Portable Laser, retail $4.99
Manufactured by (Unknown) for Lighthound (www.lighthound.com)
Last updated 05-28-12




What this is is a small portable laser. It emits a red beam (est. 640nm-650nm) with approximately 2.75mW of output power, and it includes the single AAA cell it feeds from.

It comes in a silvery-colored metal body, and looks a lot like a small flashlight.

Because this is a laser, you should not shine it into your eyes, other people's eyes, pet's eyes, etc. Just use a little common sense here, ok?


SIZE



To use your new portable laser, feed it first if necessary (see below), and then you'll be ready to go to town.

Turn the tailcap clockwise (as if tightening it) to turn the laser on, and turn the tailcap counterclockwise (as if loosening it) to turn it off.

Momentary mode is available by unscrewing the tailcap approximately 1/8th of a turn from the on position, then pressing down on the tailcap for as long as you need the laser beam.

Don't aim the laser at your face when you turn the tailcap, otherwise you might hit yourself in the eyes with the laser beam, and that wouldn't be very good at all.



This portable laser requires a single AAA cell, which is included, already installed, so you don't need to run to the store right away. To change it, unscrew and remove the tailcap, dash it to the floor, and stomp on it with old or used baseball shoes...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

Tip the open end of the portable laser into your hand, and dispose of or recycle the used AAA cell that comes out as you see fit.

Slide a new AAA cell in the barrel, orienting it so the button-end (+) positive goes in first.

Screw the tailcap back on, and be done with it.
O, and unscrew that tailcap slightly so you don't waste a perfectly good AAA cell.
Aren't you glad you didn't stomp on that tailpiece now?

Measures 73.1mA on my DMM's 400mA scale.
Later measurement pinned it to 78.0mA on the same DMM and same scale.



This is a portable laser, not a flashlight. So I won't throw it against the wall, stomp on it, try to drown it in the toilet bowl, run over it, swing it against the corner of a concrete stair, or inflict upon it punishments that flashlights may have inflicted upon them. So this section of the laser's web page will seem a bit more bare than this section of the web page on a page about a flashlight.

The thing that sets this portable laser apart from most all others currently available is that this unit operates from a single 1.5 volt AAA cell, while others require at least two batteries.

A hole is in the tailcap so you can affixed the included lanyard to it if you wish.
The lanyard is small, but it fits all the way around the laser, so you can hang it from thin tree branches, thin pipes, or other thin articles with no readily-accessible "end".



Power output analysis performed on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.
Power output measures 4mW.
Note though that it spiked to 7mW on the short-term stability analysis directly below; this is why I now call it a "portable laser" on this website rather than a "laser pointer".


Stability analysis
Short-term (600 seconds) stability analysis of this laser.
Note how stable {cough, sputter, splattering sound of a lavatory flooding} this laser is.



Beam photograph on the test target at 12".
Measures 2.749mW on a laser power meter.



Beam photograph at ~15 feet.

That red thing at the bottom is from an American DJ Laser Widow.


Spectrographic analysis
Spectrographic analysis of this laser, above threshold.


Spectrographic analysis
Spectrographic analysis of this laser, below threshold.



Spectrographic analysis
Same as above (the "over-threshold" one); newer spectrometer software & settings used.


Spectrographic analysis
Same as above; spectrometer's response narrowed to a band between 645nm and 665nm.
Laser's wavelength is ~653.45nm.


Spectrographic analysis
Spectrographic analysis of this laser; yet newer spectrometer software & settings used.


Spectrographic analysis
Spectrographic analysis of this laser; (yet newer spectrometer software & settings used); spectrometer's response narrowed to a band between 645nm and 665nm to pinpoint wavelength, which is 654.111nm. ProMetric analysis
Beam cross-sectional analysis (slow axis {X-axis}).


ProMetric analysis
Beam cross-sectional analysis (fast axis {Y-axis}).

Images made using the ProMetric System by Radiant Imaging.



TEST NOTES:
Test unit of this laser was purchased from Lighthound on 11-24-05, and was received on the mid-afternoon of 12-02-05.


UPDATE: 01-23-11
Lighthound is no longer selling this laser on their website, so I have removed the URLs that once pointed to it.


PROS:
Uses only one AAA cell for power
Comes in a sturdy, all-metal package
Has a handy, constant-on switch
Has proper laser warning label affixed to its barrel
The price is right


CONS:
Size is larger than is necessary for a 1xAAA cell laser
Not waterproof or very water-resistant - however most lasers aren't; will not affect rating


    MANUFACTURER: Unknown/TBA
    PRODUCT TYPE: Red directly-injected diode portable laser
    LAMP TYPE: Diode laser module
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow spot - it's a laser, remember?
    SWITCH TYPE: Turn tailcap on/off
    BEZEL: Metal; diode laser module recessed into a hosel for it
    BATTERY: 1xAAA cell
    CURRENT CONSUMPTION: 78.0mA
    WATER- AND PEE-RESISTANT: Light sprinkle-resistance at maximum
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: Battery, small lanyard
    WARRANTY: Unknown/not stated

    PRODUCT RATING:

    Star Rating





1xAAA Portable Laser *






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