RED 2-in-1 PORTABLE LASER STAR PROJECTOR
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Red 2-in-1 Portable Laser Star Projector, retail $28.88*
Manufactured by (Unknown)
Last updated 11-14-12
(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 red directly-injected portable laser.
What more could I say about it?
Actually, I can say a bit more about it. What sets this portable laser apart from most others you can get isn't the red laser diode buried inside. And it isn't the AAA cells it feeds from either. 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 pointers, laser modules, and portable lasers. 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 portable laser a pair of AAA cells that you furnish yourself (see below), and then you'll be ready to rock.
To use the portable laser 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 portable laser back off. Yes, it really is as easy as that.
To use the portable laser 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 portable laser comes with a pocket clip, already attached. You know what it's for.
If not, slip the portable laser into a shirt or pants pocket, and slide the clip over the outside of the fabric of the pocket when the laser is being inserted into the pocket.
To change the batteries in your red portable laser, unscrew and remove the laser's tailcap, throw it in the toilet bowl, yank that silvery-colored (they're often chromium-plated) handle on the front of the cistern down, and flush it away...O WAIT!!! YOU'LL NEED THAT!!! 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 tailcap back on, and be done with it.
Aren't you glad you didn't flush away that tailcap now?
Current usage measures 29.70mA on my DMM's 400mA 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 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 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 whitish-yellow like this photograph makes it appear.
Beam is also somewhat smaller than it appears;
the beam image also bloomed ***SIGNIFICANTLY*** when photographed.
Power measures 6.4728mW (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 of this laser.
Spectrographic analysis of this laser; spectrometer's response narrowed to a band between 650nm and 670nm to pinpoint wavelength; which appears to be ~657.60nm.
Spectrographic analysis of this laser; newest spectrometer software settings used.
Spectrographic analysis of this laser; newest spectrometer software settings used -- spectrometer's response narrowed to a band between 655nm and 660nm to pinpoint wavelength; which appears to be 658.006nm.
Video on YourTube showing this laser directed at the ceiling (with diffraction optic in place); optic was slowly rotated.
This clip is approximately 5.005234587627 megabytes (5,232,840 bytes) in length; dial-up users please be aware.
It will take no less than thirty five 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").
UPDATE: 00-00-00
PROS:
Labelled properly for power level
Projects a widely-varying starfield that's easily user-adjustable
Uses batteries that are common and relatively inexpen$ive
CONS:
None I've yet to uncover
MANUFACTURER: Unknown
PRODUCT TYPE: Handheld laser w/diffractive tip
LAMP TYPE: Directly-injected laser diode
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: 29.70mA
WATER- AND URANATION-RESISTANT: Very light splatter-resistance at maximum
SUBMERSIBLE: FOR CHRIST SAKES NOOOOO!!!
ACCESSORIES: None
SIZE: 157mm L x 13.50mm D
WEIGHT:
COUNTRY OF MANUFACTURE: Unknown; possibly Hong Kong
WARRANTY: Unknown/not stated
PRODUCT RATING:
Red 2-in-1 Portable Laser Star Projector *
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SIZE
, fire it from the cannoņata
}), 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.
