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US $5,900.00 | 3d 13h 20m |
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Sony SLD3237VFR 200mW 405nm 5.6mm 头8 Blue Violet Laser/Lazer Diode LD | ![]() |
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US $45.00 | 29d 22h 36m |
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US $16.90 | 17d 23h 35m |
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BEST POWERFUL STRONG MILITARY GRADE BLUE-VIOLET-ROYAL PURPLE LASER POINTER PEN | ![]() |
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US $59.90 | 23d 8h 30m |
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Nichia Violet Laser Diode 405/404 nm 30 mW Fiber Optical Light | ![]() |
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US $19.99 | 27d 15h 16m |
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20mW 405nm 3.0V-3.7V /Laser Diode Module/Violet Laser | ![]() |
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US $9.90 | 17d 1h 31m |
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3 Nichia Violet Laser Diode NLHV3002BE NLHV500CE 405nm 404nm Sony 30 mW | ![]() |
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US $99.99 | 21d 19h 34m |
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405nm-410nm Portable/Fousable Mini Violet laser torch/Visible Violet Laser Beam | ![]() |
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LOT 10 LX4 LASER DIODE 4-PIN 10GB IR QUADRUPLE VIOLET | ![]() |
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Violet Laser

ufos following me!!!!?
i am always seing ufos around my house.it started when i was 11.
me and my friends where out side one night.we had high powerd laser pointers.we saw a light in the sky.it was ultra violet red.we pointed the laser at it. the ufo stoped and then it moved in a circle.then it dissapered.the next day a symbol was in my grass.it looked like a arow pointing at my house.the grass never grew there again.
it scared the hell out of me
It started at 11... so are you still 11 then?
By the way you cannot see in ultra violet and red is the opposite end of the spectrum, so I'm a little confused as to what "ultra violet red" actually is.
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150mW 405nm Blu-ray Blue-Violet Laser Diode Module Burn | ![]() |
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US $28.00 | 24d 17h 1m |
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US $269.99 | 3d 7h 21m |
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150mW 405nm Blu-ray Blue-Violet Laser Diode Module Kit | ![]() |
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US $30.00 | 6d 17h 58m |
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COHERENT ION ARGON ENTERPRISE DMUV 350.7nm ARGON LASER SYSTEM WITH POWERSUPPLY, | ![]() |
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US $5,900.00 | 3d 13h 20m |
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ARGON ENTERPRISE COHERENT 350.7nm ULTRA VIOLET LASER SYSTEM COMPLETE PLUG N PLAY | ![]() |
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US $5,900.00 | 3d 13h 20m |
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COHERENT ENTERPRISE BLUE LASER SYSTEM complete plug n play 457nm BLUE SYSTEM | ![]() |
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US $5,900.00 | 3d 13h 20m |
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405nm Focusable Violet/Blue Laser Pointer Torch | ![]() |
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US $35.99 | 2d 11h 23m |
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100mw 405nm Violet/Blue Focusable Adjustable Laser Line Module 120° | ![]() |
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US $34.99 | 21d 7h 44m |
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30mW Violet Blue Laser Module 20X57mm adjust 405nm purple dot lazer diode module | ![]() |
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US $5.99 | 18d 17h 26m |
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DIY 45mW 405nm Blue Violet Purple Laser Module Cables | ![]() |
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US $8.49 | 2d 6h 41m |
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BDR-S06J Laser Sleds/a high power 450-550mw laser diode inside/Violet laser beam | ![]() |
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US $46.99 | 17d 2h 27m |
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405nm 250mw Laser Focusable Module/Violet Laser Diode Module CROSS 1 pcs | ![]() |
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US $64.99 | 18d 5h 13m |
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150mw 405nm Violet/Blue Focusable Adjustable Laser Dot Module w/ AC Adapter | ![]() |
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US $46.99 | 23d 15h 36m |
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250mW 405nm High Power Blue-Violet Laser Diode Module,300mW pulse,Tiny Heatsink | ![]() |
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US $49.00 | 6d 17h 58m |
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405nm 150mw Blue Laser Diode Module Kit Blue-ray violet | ![]() |
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US $39.59 | 15d 12h 6m |
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US $55.99 | 18d 3h 38m |
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Sony 405nm 50mw Laser Diode Cross Module/Foucsable Blue Violet Laser 1 pcs | ![]() |
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Sony SLD3237VFR 200mW 405nm 5.6mm 头8 Blue Violet Laser/Lazer Diode LD | ![]() |
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US $45.00 | 29d 22h 36m |
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100mW 405nm 3.0V-3.7V /Laser Diode Module/Violet Laser | ![]() |
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US $30.90 | 17d 23h 50m |
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50mW 405nm 3.0V-3.7V /Laser Diode Module/Violet Laser | ![]() |
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US $16.90 | 17d 23h 35m |
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BEST POWERFUL STRONG MILITARY GRADE BLUE-VIOLET-ROYAL PURPLE LASER POINTER PEN | ![]() |
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US $59.90 | 23d 8h 30m |
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Nichia Violet Laser Diode 405/404 nm 30 mW Fiber Optical Light | ![]() |
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US $19.99 | 27d 15h 16m |
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20mW 405nm 3.0V-3.7V /Laser Diode Module/Violet Laser | ![]() |
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US $9.90 | 17d 1h 31m |
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3 Nichia Violet Laser Diode NLHV3002BE NLHV500CE 405nm 404nm Sony 30 mW | ![]() |
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US $99.99 | 21d 19h 34m |
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405nm-410nm Portable/Fousable Mini Violet laser torch/Visible Violet Laser Beam | ![]() |
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US $42.99 | 12d 18h 22m |
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LOT 10 LX4 LASER DIODE 4-PIN 10GB IR QUADRUPLE VIOLET | ![]() |
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US $49.99 | 5d 13h 51m |
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US $750.00 | 20d 8h 5m |
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200mW 405nm violet laser module blue optical lasers adjust focus with heat sink | ![]() |
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US $89.99 | 25d 3h 27m |
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405nm 300mW Industrial/Violet Laser Line Module wh Plug | ![]() |
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US $85.00 | 10d 23h 43m |
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US $30.50 | 19d 8h 9m |
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405nm 5mW Violet Purple Blue Ray Blue Laser Pointer Pen | ![]() |
0 Bid | US $.90 | 1h 36m |
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New Power Violet Purple Blue Ray Laser Pointer Pen Beam 405nm 5mw,Best-selling! | ![]() |
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405nm 5mw Blue / Violet Laser Pointer Fast Shipping From USA | ![]() |
5 Bids | US $3.25 | 9h 2m |
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Cool Brand New 405nm 5mW Purple Violet Ray Beam Laser Pointer Pen | ![]() |
0 Bid | US $.99 | 1d 1h 37m |
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2 colour 2 Lens Blue Violet+Green Dj DMX Club Show Xmas Laser Stage Lighting | ![]() |
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Blue Violet Laser Pointer $89.99 A new laser color has just landed at ThinkGeek and we like what we see. Red and even green lasers are now fairly common but blue lasers not so much. So, if you want to have the latest fashionably cool laser color this year, we've got you covered. This laser outputs light in the 405 nanometer wavelength which produces a very unique blue-violet color beam, that is unusual for a handheld pointer. This is also the same wavelength used in Blu-ray DVD players. The shorter wavelength allows more data to be stored than on a standard DVD which uses a red laser (650 nanometer). This laser is certainly awesome but it's also useful for applications such as biomedical instrumentation, imaging, spectroscopy, laser induced fluorescence sensing, microscopy. And if you're not into any of those activities, then this laser can be used to write on photoluminescent material like our Glow Graffiti. |
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5mW 405nm blue violet laser pointer/UV laser pointer/wholesale purple laser pointer pen FREE SHIPPING $115.97 blue violet laser pointer pen/ purple laser pointer Max Output power: 5mW (Class III) Wave length: 405nm. FREE SHIPPING |
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5mw 405nm violet blue purple laser pointer/UV laser pen/wholesale laser pointer pen FREE SHIPPING $63.16 blue violet laser pointer pen/ purple laser pointer Max Output power: 5mW (Class III) Wave length: 405nm. FREE SHIPPING |
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Violet $9.49 Violet |
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Free Shipping+Mid-open Blue-violet Laser Pointer 100mW 405nm-E00649 $19.36 Free Shipping+Mid-open Blue-violet Laser Pointer 100mW 405nm-E00649 1. Power saving, compact and reliable |
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5pcs Lot 20mW Blue Violet Laser Pointer Pen 405nm Purple Laser Pointer Pen Mid-open FreeEMS $64.21 20mW 405nm blue violet laser pointer. Body color: black.Size:13.5x154mm(0.53x6.16inch).Material: Aluminium Alloy. Lot: 5pcs. |
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1pcs free shipping 405nm 10mw blue&violet laser pointer purple laser pen violet laser pointer $14.32 new brand 405nm 10mw blue laser pointer blue laser pen |
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DecalGirl PLSRTRANQUILITYPRP Pantech Laser Skin Violet Tranquility $24.96 Since 2003 DecalGirl has been manufacturing fullcolor removable vinyl skins for laptops cell phones game consoles iPods and other devices. DecalGirl was the first on the skin scene With thousands of designs to choose from on hundreds of devices we have a skin for you All skins are manufactured right in our Milton Delaware facility. DecalGirl PLSRTRANQUILITYPRP Pantech Laser Skin Violet Tranquility |
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DecalGirl PLSRAPOCPRP Pantech Laser Skin Apocalypse Violet $24.96 Since 2003 DecalGirl has been manufacturing fullcolor removable vinyl skins for laptops cell phones game consoles iPods and other devices. DecalGirl was the first on the skin scene With thousands of designs to choose from on hundreds of devices we have a skin for you All skins are manufactured right in our Milton Delaware facility. DecalGirl PLSRAPOCPRP Pantech Laser Skin Apocalypse Violet |
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Laser glow Technologies GEL200XXX Electra Pro200 Violet Handheld Laser Pointer $129971.59 The shortest wavelength available in a portable laser the Electra Pro produces laser light very close to the ultraviolet part of the visible spectrum at 405nm. The unique properties of this laser include the ability to excite fluorescent and phosphorescent materials. The Electra Pro is a reliable nearUV portable light source for field work. |
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Laser glow Technologies GEL300XXX Electra Pro300 Violet Handheld Laser Pointer $160954.09 The shortest wavelength available in a portable laser the Electra Pro produces laser light very close to the ultraviolet part of the visible spectrum at 405nm. The unique properties of this laser include the ability to excite fluorescent and phosphorescent materials. The Electra Pro is a reliable nearUV portable light source for field work. |
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Laser glow Technologies GEP100XXX Electra100 Violet Handheld Laser Pointer $83497.84 The shortest wavelength available in a laser pointer the Electra produces laser light very close to the ultraviolet part of the visible spectrum at 405nm. The unique properties of this laser include the ability to excite fluorescent and phosphorescent materials. The Electra can be a useful educational tool in the classroom as well as a reliable nearUV portable light source for field work. |
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Laser glow Technologies GEP150XXX Electra150 Violet Handheld Laser Pointer $98989.09 The shortest wavelength available in a laser pointer the Electra produces laser light very close to the ultraviolet part of the visible spectrum at 405nm. The unique properties of this laser include the ability to excite fluorescent and phosphorescent materials. The Electra can be a useful educational tool in the classroom as well as a reliable nearUV portable light source for field work. |
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FREE SHIPPING ,NEW 405nm 5mW Violet Purple Blue Ray Blue Laser Pointer Pen $39.11 Free shipping 5mW 405nm Blue-Violet/Royal Purple Laser Pointer Metal Pen Open-Middle |
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50mw 405nm boxed Blue violet Laser pointer pen/ uv laser / purple laser with star cap + free shipping $19.47 Blue Laser Pointer/purple laser pointer Dimension: 13.6*160mm Output Power: 50mw 405nm FRREE SHIPPING |
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Freeshipping 405nm 5mW Violet Purple Blue Ray Blue Laser Pointer Pen $14.32 405nm 5mW Violet Purple Blue Ray Blue Laser Pointer Pen: Max Output power: 5mW. Wave length: 405nm. |
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3-in-1 10 White LED Light+ 5 Violet LED+Red Laser Pointer(3*AAA) $5.21 - 3 in 1 led flashlight- 10 white led light bulbs- 5 violet led bulbs for money test- Build-in red laser pointer |
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Best Sale! can bure match! 200mw 405nm violet purple blue Laser Pointer Pen Handheld Adjust Focusing 2pcs/lot $57.89 Product name:high-power handheld violet purple blue laser Model no.18130B Battery : 2XCR2 (3v) Size: 18mmx130mm. |
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Oxlasers 5mw 405nm 2in1 uv Laser pointer/violet Blue Laser pointer pen with star cap+Free Shipping $60 Blue Laser Pointer/purple laser pointer Dimension: 13.6*160mm Output Power: 5mw FRREE SHIPPING |
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Flowtron BK-40D Electronic Insect Killer, 1 Acre Coverage
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DescriptionFlowtron electronic insect killer eliminates thousands of insect pests daily. Improves the health and quality of life by reducing the spread of infectious diseases and decreasing the annoyance level caused by flying insect pests... |
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Uvex S1933X Skyper Safety Eyewear, Black Frame, SCT-Orange UV Extreme Anti-Fog Lens
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LRI FMW Photon Freedom LED Keychain Micro-Light, White Beam
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DescriptionATTRIBUTES Batteries Included: Yes Bulb: LED White Finish: Black Material: Polyurethane Power Source: 2 x CR2016 Switch: Pressure Switch |
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Reflections of the Way Life Used To Be |
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DescriptionThe outside layer of your skin is covered in oil, and being oil soluble, the Salicylic acid is able to penetrate this outer layer. |
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Verilux CleanWave VH01WW4 UV-C Sanitizing Wand
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DescriptionThe CleanWave Sanitizing Wand is a convenient, all-in-one sanitizing solution for your home or office. It safely eliminates 99.9 percent of germs, viruses, bacteria, allergens, and flea and dust mite eggs from household surfaces and fabrics... |
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Doctor Who - The Tenth Doctor's Sonic Screwdriver |
DescriptionEach Sonic Screwdriver feels just perfect. It doesn't really do all the cool things in the series (just in case the Cybermen are able to buy them), but it does have lights and sounds straight from the show - and it extends too! One end has a purple UV light and the other has a pen nib... |
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Polk Audio DB651 6.5-Inch Coaxial Speakers
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JBL MS6200 6.5-Inch 2-Way Marine Speakers
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DescriptionPower handling: RMS, 60 watts (Peak, 180 watts)Sensitivity: 91dBFrequency response: 55Hz-20kHzPolypropylene woofer conePolypropylene dome tweeterIntegrated grille assemblyUV- and water-resistant constructionInstallation size: 5 1/16"W x 5 1/16"H x 2 1/2"DOverall size: 6 1/2"W x 6 1/2"H x 3 1/4"D |
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Powerbass S675 6.75-Inch Coxial OEM Speakers
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Healing Photons: The Science & Art of Blood Irradiation Therapy |
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Extreme Ultraviolet Lithography
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DescriptionMaster Extreme Ultraviolet Lithography TechniquesProduce high-density, ultrafast microchips using the latest EUVL methods. Written by industry experts, Extreme Ultraviolet Lithography details the equipment, materials, and procedures required to radically extend fabrication capabilities to wavelengths of 32 nanometers and below... |
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Ultraviolet and Soft X-Ray Free-Electron Lasers: Introduction to Physical Principles, Experimental Results, Technological Challenges (Springer Tracts in Modern Physics)
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Jessica London Violet Laser Cut Peep Toe Sandal |
DescriptionAnkle strap pump with padded insole, non-skid rubber sole. Imported. by Comfortview 2¾" heel Man made Full and half sizes Womenâs medium shoes, wide shoes and wide wide shoes in full & half sizes 7-11, 12 Proposition 65 (CA residents). |
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Comfortview Violet Laser Cut Peep Toe Sandal |
DescriptionAnkle strap pump with padded insole, non-skid rubber sole. Imported. by Comfortview® 2¾â heel Man made Full and half sizes Womenâs medium shoes, wide shoes and wide wide shoes in full and half sizes 7-11, 12 Proposition 65 (CA residents). |
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Comfortview Violet Laser Cut Peep Toe Sandal |
DescriptionAnkle strap pump with padded insole, non-skid rubber sole. Imported. by Comfortview® 2¾" heel Man made Full and half sizes Womenâs medium shoes, wide shoes and wide wide shoes in full & half sizes 7-11, 12 Proposition 65 (CA residents). |
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The Incredibles
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DescriptionThe Incredibles videogame features intense superhero action and adventure combined with the unique graphical style and humor of the next film from Pixar Animation Studios. The Incredibles written and directed by Brad Bird (The Iron Giant The Simpsons) tells the story of a family of undercover superheroes who are trying to live a quiet suburban life but are forced back into action in order to save the world... |
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5mw 532nm Astronomy Powerful Green Laser Pointer - Black |
DescriptionBlack Dimple Finish High Power Green Laser. We ensure that every high power green laser pointer is hand calibrated and tested to output at least 4.99mw and thus offers the expected stunning power expected of a real constant wave green (532nm) laser pointer, much brighter to look at than a regular red laser pointer and always with a visible green beam... |
Burning 405nm Violet Laser
How does light read info on a blu ray disk in terms of physics?
I know that discs use pits to store data. A violet laser is beamed onto these pits, and the light beam bounces off. But how is light able to read this information?
Many thanks
The info is stored in binary form, either a pit or a land for each binary digit. So each pixel in a 24-bit colour image, for example, requires a sequential combination of 24 pits and lands.
Basically, the laser light is reflected from a pit, but is not reflected from a land. The blue laser's high frequency allows many millions of bits to be detected every second.
So light doesn't actually read the info; it is just the medium used to transfer the information from the recorded disk to the processing electronic circuits.
This is very brief, but googling blu ray will give you all the nitty-gritty details you probably don't really want to know












































































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