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Fjestad's "Blue Book of Gun Values" is the bible, but I've never found any of it available online (for free). www.gunbroker.com-- the "ebay" for guns -- will give you a general idea. edit - my Blue Book is a couple of editions old, but I'll be happy to help. PM me.
The product is a light blue, very runny liquid with no noticeable odor. DANGER: POISON is in petty bold lettering so this might not be a product for some of our more junior members. As far as I can tell it's just an 'instant tarnish' kind of product. The instructions call for the AL to be cleaned, degreased, and brightened with steel wool.
It is rated to produce almost 1 watt of laser radiation at 445nm (spectrographically measured at 439.48nm {low} and 441.40nm {high}) in the royal blue part of the spectrum. This amazing laser was in the Guiness Book of World Records as "The most powerful handheld laser in the world"!!!
Bug-A-Salt 3.0 (bugasalt V3.0 "bug assault" salt gun) review Summary: After all these years this well-known popular fun US product is finally available from an official importer in Europe and at fair pricing! With this third iteration and the revised laser pointer, the product has ultimately reached final maturity status, and I welcome all the ...
The F40A is the latest 4xAA light from Sunwayman, part of their new Falcon series that incorporates red and blue 5mm LEDs along with the main white XM-L2 emitter. The F40A differs from the other Falcon members I've tested (the F10R and F20C ) in that it uses a dual electronic switch interface (i.e., similar to the D40A).
My night-adapted eyes prefer the green to the blue. I've got green, blue, and red tritium tubes, all bought the same year. The red one is pretty damned dim, and the blue's even dimmer (I've got the dark blue one). The green knocks them both out of the park.
Note that when first inserting connecting the tailcap, the blue LEDs under the switch will read out the voltage of the battery in a series of flashes (e.g., four flashes, followed by a short pause, with two more flashes would indicate a full charge of 4.2V).
The chosen diode for this build (though capable of driving much more powerful LDs/LEDs) is the 7W NUBM44-V2/81 450nm blue laser diode, which comes in a TO-5 9mm can package. As of writing, it is currently the most powerful available visible wavelength laser diode. In the micrograph above you can see the die inside the can.
The blue band may have been done with plasma depositing process like is done to coat tool steels and wearing surfaces. If that is the case then no solvents can be used. It would take a multi step aggressive abrasion removal and repolishing.
Blue-pumped LED's already can achieve excellent performance in the red range, which is where white LED's have traditionally been most lacking. The violet-pumped LED's main place to offer an advantage is in the small range between the ~450nm peak of blue LED's, and the roughly 400nm peak of the violet LED's they're using.