GREEN 2-in-1 LASER
POINTER STAR PROJECTOR This is a long page with at least 22 images on it; dial-up users please allow for plenty of load time.
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Green 2-in-1 Laser Pointer Star Projector, retail $28.88*
Manufactured by (Unknown)
Last updated 11-15-12




(In reference to the padded envelope I received from an Ebay seller at 4:56pm PDT on 10-20-10):
{sung like the Foreigner song "Feels Like the First Time"}


This is a green DPSS (diode pumped solid state) laser module.

But what sets this laser module apart from most others you can get isn't the MCA, and it isn't the AAA cells it feeds from. It's that moveable holographic diffraction grating optic on the unit's "business end" that allows it to project "stars" when the button is pressed, rather than just a single dot like most other laser modules. This grating can be rotated to project any of quite literally HUNDREDS of different patterns.

It comes in what I believe is a brass body.


* Price was for a 3-pack containing red, green, and violet units.


SIZE



Feed the laser module a pair of AAA cells that you furnish yourself (see below), and then you'll be ready to rock.

To use the laser module to point something out, unscrew & remove the diffraction grating tip, aim it at something you wish to point out, and press & hold down the button on the barrel for as long as you need the laser spot. Release the button to turn the laser module back off. Yes, it really is as easy as that.

To use the laser module as a "star" projector, do exactly as above except do not remove the tip. Rotate (turn) the tip clockwise (as though tightening it) to change the pattern of the projected "stars".

The laser module comes with a pocket clip, already attached. You know what it's for.
If not, slip the laser module into a shirt or pants pocket, and slide the clip over the outside of the fabric of the pocket when the module is being inserted into the pocket.



To change the batteries in this green laser, unscrew the laser near the center, gently place the upper portion onto the floor in front of the stairs leading to the basement, and kick it down those stairs so that the piss ants with full bladders will think it's something to eat, find it unpalatable, drag it to the queen, who just sniffs at it, uranates all over it, and instructs the worker ants to do the same...O WAIT!!! THAT'S THE GOOD PART!!! So just set it aside instead.

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

Insert two new AAA cells into the barrel, flat-end (-) negative first. This is the opposite of how batteries are installed in most flashlights, so please pay attention to polarity here.

Screw the front portion of the tube back on, and be done with it.
Aren't you glad that you didn't kick that front piece into the basement with all of those hungry ants that really had to piddle now?

Unable to measure current usage due to how the laser was constructed.



This is a laser module, not a flashlight. So I won't throw it against the wall, stomp on it, try to drown it in the toylet bowl or the cistern, run over it, swing it against the concrete floor of a patio, use a small sledgehammer in order to bash it open to check it for candiosity, fire it from the cannoņata, drop it down the top of Mt. Erupto (I guess I've been watching the TV program "Viva Piņata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piņata Central), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoņata (also located at Piņata Central) is only used to shoot piņatas to piņata parties away from picturesque Piņata Island, and Mt. Erupto is an active volcano on Piņata Island {In the episode "Les Saves the Day...Again", Paulie Preztail says "Hey, ever wonder why this park's called 'Mount Erupto' anyway?", then Franklin Fizzlybear says "I think its an old native term. Means 'very safe.'"}), send it to the Daystrom Institute for additional analysis, 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.

This is a DPSS (Diode Pumped Solid State) laser anyway; this type of laser uses some crystals and other stuff in the optical train -- they can be nocked out of alignment by doing little more than looking at it the wrong way. And if any of these components get nocked out of whack, you'll no longer get your pretty green stars (or laser beam, if the starfield tip is removed).

This laser is lightly splatter-resistant, but it is not water- or pee-resistant, so please be extra careful when using it around sinks, tubs, "terlets", fishtanks, pet water bowls, or other places where water or water-like liquids might be found. And you'll probably want to cover it up or otherwise get rid of it (such as by putting it in a pocket or bag) if you need to carry it in rainy or snowy weather.

Although the barrel is smooth, it does *NOT* feel at all slippery; the exterior finish feels almost a bit "rubbery" even though that's not what it is. I'm not exactly certain what the exterior finish is, but it has a somewhat "grippy" feel to it.

The diffraction grating can be easily rotated by hand, but it has a stiff enough "action" to it that it won't just spin by itself or through casual handling.





Beam photograph on the test target at 12"; diffraction grating removed.

Beam is not white like this photograph makes it appear.
Beam is also somewhat smaller than it appears;
the beam image also bloomed ***SIGNIFICANTLY*** when photographed.

Power measures 24.840mW (w/diffraction grating removed) on a laser power meter designed for that purpose.



Beam photograph on the test target at 12", diffraction grating in place.



Beam photograph at ~10'; diffraction grating removed.

Beam is not white like this photograph makes it appear.
Beam is also somewhat smaller than it appears;
the beam image also bloomed rather substantially when photographed.

Those colored graphics toward the left are my "Viva Piņata" posters, and that clock on the right that looks like a gigantic wristwatch is my Infinity Optics Clock.
You may also be able to see two of my SpongeBob SquarePants plush (Squidward Tentacles & Patrick Star) and a Digimon plush (Greymon)


Spectrographic analysis
Spectrographic analysis of this laser.


Spectrographic analysis
Spectrographic analysis of this laser; spectrometer's response narrowed to a range between 800nm and 850nm to isolate the NIR line from the pump diode.


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


Spectrographic analysis
Spectrographic analysis of this laser; spectrometer's response narrowed to a band between 520nm and 540nm to pinpoint wavelength, which is 532.633nm.


Spectrographic analysis
Spectrographic analysis of this laser; newest spectrometer software settings used.


Spectrographic analysis
Spectrographic analysis of this laser; newest spectrometer software settings used -- spectrometer's response narrowed to a band between 528nm and 536nm to pinpoint wavelength; which appears to be 530.994nm.

USB2000 spectrometer graciously donated by P.L.


ProMetric analysis
Beam cross-sectional analysis.

Image made using the ProMetric System by Radiant Imaging.





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

This clip is approximately 5.175674562378 megabytes (5,397,516 bytes) in length; dial-up users please be aware.
It will take no less than thirty six minutes to load at 48.0Kbps.





TEST NOTES:
Test unit was purchased on Ebay on 10-16-10 (or "16 Oct. 2010" if you prefer) and was received at 4:56pm PDT on 10-20-10 ("20 Oct. 2010").

Unit is improperly labelled for power output; that's what nocked that last star off its rating.


UPDATE: 00-00-00



PROS:
Projects a widely-varying starfield that's easily user-adjustable
Uses batteries that are common and relatively inexpen$ive


CONS:
Incorrectly labelled for power output (labelled as CDRH Class IIIa <5mW); has a measured output of 24.840mW.


    MANUFACTURER: Unknown
    PRODUCT TYPE: Handheld laser w/diffractive tip
    LAMP TYPE: DPSS (Diode Pumped Solid State) laser
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow spot
    SWITCH TYPE: Momentary pushbutton on/off on barrel
    CASE MATERIAL: Metal
    BEZEL: Laser & collimator recessed into hosel in the end
    BATTERY: 2x AAA cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER- AND URANATION-RESISTANT: Very light splatter-resistance at maximum
    SUBMERSIBLE: DER TEUFEL TRÄGT EINE WINDEL PINKELN-GETRÄNKTEN NEIN!
    ACCESSORIES: None
    SIZE: 157mm L x 13.50mm D
    WEIGHT: Unkbown/not equipped to weigh
    COUNTRY OF MANUFACTURE: Unknown; possibly Hong Kong
    WARRANTY: Unknown/not stated



    PRODUCT RATING:

    Star Rating





Green 2-in-1 Laser Pointer Star Projector *






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