![]() ![]() ![]() In good light, you will be a pattern of shades of yellow in a field of shades of yellow, instead of a bright glowing blue flag. It lets your camo pattern work as it was designed to. Unlike scents, which are less effective when used by more hunters, the use of U-V-Killer does not provide a clue to help deer identify hunters. They see the blue glow at least 1000 times as bright as we do.Īfter testing and treating all your camo and blaze orange, tell your friends. Without U-V-Killer, the UV energy is converted to bright blue, right at the peak of the deer's vision. The energy absorbed by U-V-Killer is converted to longer wavelengths (reds) which deer don't see. U-V-Killer works by absorbing the Ultraviolet energy before it reaches the brighteners. WOW!!! The copy paper darkens dramatically, but it makes no difference on the other. If you have some U-V-Killer, agitate it and apply some to both papers. With a fluorescent 350 BLB this distance will be about one tube length. It should be the minimum distance when checking laundry detergent, camouflage, and blaze orange fabrics. You can minimize the confusion by keeping the light far enough away so that the unbright paper does not glow. Almost all UV lights have some blue content and it tends to confuse our test. This is a "false" glow caused by the little bit of blue light that is escaping from the black light. Notice that when you get very close, even the dark paper begins to look blue. Move the UV light source closer to and further from the white targets. The bright blue glow indicates the presence of OPTICAL BRIGHTENERS. Notice the copy paper has a bright blue glow that is not seen on the unbrightened paper. Now turn off the room light and cut on the black light. They both appear white in ordinary light. Arrange the two papers overlapping each other. Paper plates and newsprint paper usually contain very little if any brightener. Originals of this document are printed on paper with no UV Brighteners, so it can be used in the test. Bright paper is everywhere, any sheet of copy paper will do. With the right light, a darkened room, and samples of white paper with and without optical brighteners, you can learn to detect the same glow that animals see. Incandescent (screw-in) black lights will not work. These are very compact, and will reveal the presence of brighteners. We also offer custom manufactured LED lights. A 6" battery powered model is available from Atsko Inc. These are available in sizes from 6" to 48". ![]() The ideal light source to reveal optical brighteners is a 350 BLB fluorescent black light. They are more powerful than they appear and can damage your eyes. WARNING: Do not look directly at any UV Light source. We are much more sensitive to longer wavelength colors, but in a dark room with a proper UV light source, we too can see the UV Glow. We don't see them because we have a UV filter in the lens of our eye to protect it from sun damage. Silicone Water Guard - More in every can, #1336 and #1336Lĭeer and other game can easily see Optical Brighteners.Tips for using Sport-Wash Hair & Body Soap.Sno-Seal Application Tips and Instructions.Tips for using Sport-Wash Laundry Detergent.Behavioral study CONFIRMS that Deer see UV Brighteners (Cohen).Review of Color Vision in White-Tailed Deer (VerCauteren).How to check camo and orange for UV GLOW. ![]()
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