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Review of the Adjustable 1x AAA Green Beam Portable Laser

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Adjustable 1x AAA Green Beam Portable Laser, retail $6.09
Manufactured by: (Unknown)
Last updated 04-15-14





The Adjustable 1x AAA Green Beam Portable Laser is a green-emitting, DPSS laser. It uses a a single AAA cell -- not two AAA cells like most other "pen-style" laser pointers and portable laser do.

It comes in a handsome brass body with a black finish and chrome colored bezel, tailcap, and spring-loaded "lobster claw" keychain attachment.

It also comes with a holographic "stars" projection head that screws directly onto the end of the laser's "business-end".

SIZE



To get the laser to turn on, first be certain that there is an AAA cell installed. If there isn't, then install it (see directly below), and THEN you can go irradiate something.


Aim the laser well-away from your face first.
Press & hold down the button on the barrel for as long as you want or need the laser spot, and release pressure on the button to neutralise the laser.

To use the holographic "starfield" projector head, just screw it into the laser's "business-end", activate the laser, and spin the projection head. "Stars" will be projected from the laser's aperture and will change configuration whenever the projetion head is spun. You need not spin it hard; just give it a gentle twist to watch the "stars" change.



To change the battery in this green laser, unscrew the tailcap, and set it aside.

Tip the used AAA cell out of the barrel and into your hand, and dispose of, recycle, or recharge it as you see fit.

Insert a new AAA cell into the barrel, nipple-end (+) positive first. This is the opposite of how batteries are installed in most other laser pens, so please pay attention to polarity here.

Screw the tailcap back on, and be done with it.


Measures 389mA on my DMM's 400mA scale.



Power output peaks at 42mW on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.


Beam photograph on the test target at 12".


Beam photograph on a wall at ~8'.


Projector photograph on the ceiling.


Projector photograph on the ceiling.


Projector photograph on the ceiling.


Projector photograph on the ceiling.


Spectrographic analysis of the DPSS laser in this product.


Spectrographic analysis of the DPSS laser in this product; but spectrometer's response narrowed to a band between 527nm and 537nm to pinpoint wavelength, which is 532nm.



Spectrographic analysis of the DPSS laser in this product; but spectrometer's response narrowed to a band between 800nm and 830nm to check for the effectiveness of (or the presence of) an NIR filter.
This filter functions relatively effectively; I had to "overload" the spectrometer by a significant degree to obtain this plot.


The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/45/532-11.txt

USB2000 Spectrometer graciously donated by P.L.

A beam cross-sectional analysis would normally appear here, but the ProMetric System
that I use for that test was destroyed by lightning in mid-July 2013.





Video on YourTube showing this laser directed at the ceiling (with diffraction optic in place); optic was slowly rotated.

This video is approximately 161.1 megabytes (161,510,444 bytes) in length; dial-up users please be aware.
It will take no less than eight hundred five (!) minutes to load at 48.0Kbps.

This video is definitely ***NOT*** dial-up friendly!!!




TEST NOTES:
Test unit was purchased on Ebay on 03-29-14, and was received on the afternoon of 04-14-14.


UPDATE: 00-00-00


PROS:
Uses inexpensive and readily available batteries
Form factor (size in specific) is much smaller than other green DPSS lasers
The price is right!

NEUTRAL:
Keychain is not on a swivel

CONS:
No CDRH-mandated laser warning label -- this is what nocked ½ star off its rating
No safety features required of a CDRH Class IIIb laser; this is what lopped off the other ½ star



MANUFACTURER: Unknown
PRODUCT TYPE: Green-emitting laser
LAMP TYPE: DPSS laser assembly
No. OF LAMPS: 1
BEAM TYPE: Very narrow spot / adjustable starfield
REFLECTOR TYPE: N/A
SWITCH TYPE: Momentary on/off button on barrel
CASE MATERIAL: Brass
BEZEL: Metal; laser & lens recessed into its end
BATTERY: 1x AAA cell
CURRENT CONSUMPTION: 389mA
WATER-RESISTANT: Light splatter-resistant at maximum
SUBMERSIBLE: No
ACCESSORIES: Short chain with spring-loaded "lobster claw" clip, holographic "starfield" projection head, 1x AAA cell, hard-sided storage case w/magnetic latch
SIZE: 88mm L x 12mm Dia.
WEIGHT: 38.2g (1.35 oz.) with battery
COUNTRY OF MANUFACTURE: China
WARRANTY: Unknown/not stated

PRODUCT RATING:




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