50mW 405nm

50mW 405nm Handheld Ultra Powerful Violet Laser Pen 1010, retail $18.09 (www.dinodirect.com...*)
Manufactured by: (Unknown)
Last updated 05-27-12

(In reference to the padded envelope I received from DinoDiorect.com at 3:39pm PDT on 06-21-11):
{sung like the Foreigner song "Feels Like the First Time"}

The 50mW 405nm Handheld Ultra Powerful Violet Laser Pen 1010 (hereinafter, just called a "violet portable laser") is a violet-emitting, directly-injected laser. That is, it produces violet laser radiation directly, without the need for messy, fragile nonlinear crystals like those green laser pointers and the amberish-yellow and blue ones as well. It uses a single CR123A lithium cell -- most commonly used in cameras and high-end flashlights.

It is advertised to output 50mW of laser radiation at 405nm; it actually produces 36mW of laser radiation at a wavelength of 403.920nm.

This is the reason I call it a "portable laser" on this website instead of a "pointer". Lasers designated as "pointers" must -- by US law anyway -- have a power output that does not exceed 5mW.

It comes in a handsome aluminum body with a black finish.

* This URL is no longer valid; however it is the one I originally made my purchase from.


To get the laser to turn on, first be certain that there is a CR123A 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 turn the laser back off.

To change the battery in this violet laser , unscrew & remove the tailcap, throw it into the dustbin (garbage can), tie off the bin liner (plastic garbage bag), carry it to outdoor wheelie bin (wheeled garbage can), throw it in, slam the lid down, and wait patiently for garbage day so that the dustman (garbage man) empties the wheelie bin into his dustcart (garbage truck)...O WAIT!!! THAT'S THE GOOD PART!!! So just set it aside instead.

Tip the used CR123A cell out of the barrel and into your hand, and dispose of, recycle, or recharge it as you see fit.

Insert a new CR123A cell into the barrel, flat-end (-) negative first...

this is how it was designed; my particular unit though requires one to place the cell into the barrel nipple-end (+) positive first, and use a small wad of household aluminum foil to allow the flat tailcap to make contact with the cell's flat (-) negative terminal!!!}.

The normal installation procedure is the opposite of how batteries are installed in most flashlights, so please pay attention to polarity here.

Screw the tailcap of the tube back on, and be done with it.
Aren't you glad that you didn't throw that tailcap away now?

Current usage measures 144.0mA on my DMM's 4A scale.

This is a self-contained laser , and not a flashlight meant to be carried around, thrashed, trashed, and abused - so I won't try to drown it in the toliet tank, bash it against a steel rod or against a concrete porch, let my mother's big dog's ghost or my sister's kitty cats piddle (uranate) on it, run over it with a 450lb Celebrity motorised wheelchair, stomp on it, use a small or medium ball peen hammer in order to bash it open to check it for candiosity, fire it from the cannoñata, drop it down the top of Mt. Erupto (I guess I've been watching the TV program "Viva Piñata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piñata Central {aka. "Party Central"}), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoñata (also located at Piñata Central) is only used to shoot piñatas to piñata parties away from picturesque Piñata Island, and Mt. Erupto is an active volcano on Piñata Island), send it to the Daystrom Institute for additional analysis, or perform other indecencies on it that a flashlight might have to have performed on it. So this section of the web page will be ***SIGNIFICANTLY*** more bare than this section of the web page on a page about a flashlight.

This is a directly-injected laser though (which by their very nature are more rugged than DPSS lasers!), who's active components are the inverter circuit, the laser diode, and the collimating lens. So it should withstand accidents better than a DPSS (diode pumped solid state) laser - the type of laser assembly found in deep red (671nm), yellow (593.5nm), green (532nm), and light blue (473nm) laser pointers. These lasers have several additional components (crystals, filters, etc.) in the optical train, and you can knock them out of alignment by doing little more than looking at them the wrong way. And if any of these components are knocked out of whack, you'll no longer get your deep red, yellow, green, or blue laser beam.
Though you still do not want to intentionally drop your violet-emitting laser because it's a precision optical instrument.

This laser has a fair amount of {vulgar slang term for male nads} to it (measured at 36.00mW), so you ***DEFINITELY*** do not want to shine it into your eyes, other people's eyes, pets' eyes, for that matter, the eyes of any person or animal you encounter. Eye damage can occur faster than the blink reflex can protect them, regardless of what species' eyes you irradiate with this laser. So just don't do it.
And para los motivos de Cristo (and for heaven sakes and for Pete sakes and for your sakes too) do not shine this laser at any vehicle, whether ground-based like a motorcycle, car, or truck, or air-based like a helicopter, airplane, or jet. And if you shoot it at a person in the dark and he turns out to be a police officer, he may think he's being targeted, unholster (whip out) his gun, and hose you down with it.

This laser feels wonderful to hold and use; the only real reason that it did not rate five full stars from me is that it is significantly underpowered (under spec).

Laser power oputput analysis
Power output measures 36mW.

Power output measures 28mW.

Stability analysis
Short-term (600 seconds) stability analysis of this laser.
Note how stable {cough, sputter, sound of a wall-mounted porcelain uranator flushing} this laser is.

All measurements were made on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.

Beam terminus photograph of this unique (well, "not-so-unique" now) laser on the target at 12".
Beam image bloomed ***SIGNIFICANTLY***.

That white & blue color does not really exist; the spot appears to be a very deep royal purple to the eye.
Digital cameras have a tough time at these wavelengths.

And yes, I know that the colors purple and violet are two different critters, but the phrase "royal violet" would not make very much sense; however, most everybody knows what "royal purple" looks like.
Purple is a mixture of red & blue; violet is a spectral color, encompassing wavelengths of ~390nm to ~410nm.

Beam terminus photograph on a wall at ~10'.
Again, that white & blue color does not really exist, and beam image bloomed a bit.

Spectrographic analysis
Spectrographic analysis of the Blu-ray laser diode in this product.
Wavelength appears to be ~405nm, which is within specification for the type of laser diode used in this laser.

Spectrographic analysis
Same as above; but spectrometer's response narrowed to a band between 400nm and 410nm.
This shows that the wavelength is in fact 403.920nm.

Spectrographic analysis
Spectrographic analysis of the Blu-ray laser diode in this product; newer spectrometer software settings used.
Wavelength appears to be ~405nm, which is within specification for the type of laser diode used in this laser.

Spectrographic analysis
Spectrographic analysis of the Blu-ray laser diode in this product (newer spectrometer software settings used); but spectrometer's response narrowed to a band between 400nm and 410nm to pinpoint wavelength, which is 403.933nm.

Spectrographic analysis
Spectrographic analysis of the fluorescence of a uranated* glass marble when irradiated with this laser.

Spectrographic analysis
Spectrographic analysis of the fluorescence of the 2009 NIA Commemorative Insulator in uranated* glass when irradiated with this laser.

*"Uranated" - infused with an oxide of uranium, *NOT* piddled (uronated) on.
Commonly referred to as "Vaseline glass" because it has
a distinct pale yellow-green color when not being irradiated.

Note spelling: "urAnated", not "urEnated","urInated",
"urOnated", "urUnated", or sometimes "urYnated".

Spectrographic analysis
Spectrographic analysis of the fluorescence of the transparent blue plastic body of a disposable cigarrette lighter when irradiated with this product.

USB2000 Spectrometer graciously donated by P.L.

ProMetric analysis
Beam cross-sectional analysis with beam widened (fast axis {x-axis}).

ProMetric analysis
Beam cross-sectional analysis with beam widened (slow axis {y-axis}).

Images made using the ProMetric System by Radiant Imaging.

Those irregularities you see in both beams that queered these tests are from the lens used to widen the beam, and do not exist in the laser's actual beam.

Test unit was purchased on the DinoDirect website on 06-07-11 (or "07 Jun 2011" or even "Jun 07, Twenty Double Sticks" if you prefer) and was received at 2:22pm PDT on 06-27-11 (or "27 Jun 2011" or even "Jun 27, Twenty Double Sticks"); it appeared to be deader than a doorknob until 12-10-11 (or "10 Dec 2011" or even "Dec 10, Twenty Double Sticks" if you prefer) when I discovered that the CR123A cell goes in "backward"; only with the aid of a small wad of kitchen aluminum foil between the battery (-) and the tailcap did it miraculously spring to life.

I consider this to be a rather unfortunate fluke however; this laser will not be derated because of it unless I hear of other purchasers who's laser has a backward battery installation (and the subsequent need for metal foil to obtain operation) as well.

UPDATE: 00-00-00

Color is very radiant & unusual for a handheld laser
The price is right!
Labelled properly for wavelength and power output
Color is very radiant an unu...o wait, I said that already!!!

Power output is somewhat under spec (this is what nocked that last star off its rating)
Not very water-resistant and definitely not submersible -- this is par for the course with most portable lasers though and will not affect rating

    PRODUCT TYPE: Violet-emitting laser
    LAMP TYPE: Directly-injected 405nm violet laser diode
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow spot
    SWITCH TYPE: Momentary on/off button on barrel
    CASE MATERIAL: Aluminum
    BEZEL: Metal; laser & lens recessed into its end
    BATTERY: 1x CR123A lithium cell
    WATER- AND URANATION-RESISTANT: Very light splatter-resistance at maximum
    ACCESSORIES: 1x CR123A cell, small lanyard
    SIZE: 112mm L x 25mm D (barrel) & 39mm D (head)
    COUNTRY OF MANUFACTURE: Unknown, but likely China or Hong Kong
    WARRANTY: Unknown/not stated


    Star Rating

50mW 405nm Handheld Ultra Powerful Violet Laser Pen 1010 * www.dinodirect.com...

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