fog machines and laser rays. Froggy's Fog - Boreas S4 Snow Machine With DMX. fog machines and laser rays

 
Froggy's Fog - Boreas S4 Snow Machine With DMXfog machines and laser rays  Close the bottle and shake it for about 10-15 seconds

For example, you can use dry-ice fog production to make a dramatic wedding entrance. $39. The smoke detectors at my house are line-voltage wired and they trip from my fog machine. In stock Ships tomorrow. See how a simple 4 Beam Laser and a fog machine (from Donner) can create a stunning display of laser beams! First learn the laser’s functions and features th. I do lights for my friend who DJs so I use a lot of fog machines Amazon. Dental X-ray machines and facilities with X-ray machines must be registered with the State Department of Public Health, Radiologic Health Branch in Sacramento within 30 days of acquisition. The best fog machines @ a glance…. Examples include. 10 of The Best Fog Machines You Can Buy. Step 1: Make sure you have all the necessary components, along with the appropriate fog machine fluid (juice), cleaner and, if desired, a fog machine timer and remote control. 2a, the TEM image of pure PP without doping shows a. $98. Laser projectors and laser light shows are “demonstration laser products” as defined by 21 CFR 1040. More bunnyslopes For beam shots, get a fair amount of fog in the air (about 3 bursts with usual, lower powered fog machines) and blow it around the room so it is evenly spread out. FOG MACHINES & LASER RAYS: A SYNTHICIDE Visual Documentary 2021-2023 The physical copies have finally arrived! For those of you who bought a copy. 95. SYNTHICIDE . fog machines & laser rays since 2014. Jun 10, 2022 - Tumblr is a place to express yourself, discover yourself, and bond over the stuff you love. Find a wide selection of fog machines and smoke machines for events, parties, and even Halloween! Available online on Walmart. Explore. Please look into this! Lasers would be the second thing that need to be functional, even if it only used the pre programmed effects in the light (channel 1) although more difficult to make an update for, it would be seriously amazing. 06 μm, 1. Or $32. crescent-shaped black lines. 110 – 120 VAC. Color – Defines the color of the fog when it is illuminated by light sources. Whether personal or professional use, you would find that perfectly. Black Label H2OHaze is water based and can be safely used in any water-based haze or fog machine. Smoke detectors can either be ion chamber based or optical. . When it comes to how a fog machine works – the number one element is the heat exchanger, which is a block of metal with a heating element inside. 00 £55. BeamZ S700-LED Ice Effect Fog Machine. You vape. They are anagrams of each other and therefore include the same components. A fog Machine at 500 W from Amazon. Hongrui 3 IN 1 Planet Pattern Laser Customized Moving Head Stage Lighting Design and Control for Large-Scale Shows, Projection $ 111 . Halloween Witch Cauldron with Mist Maker, Black Witch Jar Atomizer Lamp Punch Bowl with 12 LED Light 7 Colors Change Fogger Mist Maker Decor (Plastic) 1. Generally dissipates (goes away) quicker than haze. SITERUI dj lights 1500W LED Vertical Smoke machine fogging machine with 24*3 LED RGB stage light $64. The technique of ghost imaging, which builds up images of objects by combining information from light collected at two detectors, has been demonstrated in the x-ray. 3. Available in two varieties, the first being a multi-point. . Leonard Cohen, ‘Tower of Song’ The laser pulses are intensely powerful and cause rapid chemical changes within the molecules of fog or cloud, and the clear path is created by a sonic boom on the molecular level. Jumping Music, Slick Deejays, Fog Machines & Laser Rays, Digital Download, Song Lyrics Wall Art. They are by no. The light excites atoms in the ruby. Want to route fog to 2 different areas approximately 10' away from machine. It is made from the highest quality pharmaceutical grade chemicals and with the amazing results you will see from this fluid, it makes Froggys Techno Fog the. 00. After I finished burning, I noticed that the beam from this red. Laser Swamp. Smoke clouds make laser beams and rays of light visible for an interesting effect; Perfect for DJ performances and small venues; Regular Price £50. 95: $34. Business, Economics, and Finance. Boeing. This, in turn, protects your eyes from the strain. We sell a variety of fog machines to help you get just the effect that you need. Mnemonics for the differential diagnosis of lucent/lytic bone lesions include:. The image receptor is held in a similar casing (cassette) to that of the traditional film screen. 99 . Introducing the Laser Swamp™ creates the illusion of wading through Green, Red or Blue water with the help of Haze and Lasers. In 1960, the American scientist Maiman build the. Thread starter jander6442; 74. malfunction of the machine or placing the film in the fixer before developer solution. Here are some basic notes to help guide you: Fog fluid. Because weekends were, made for fun Jumping music, slick DJs Fog machines and laser rays Lookout weekend cause, here I come Because weekends were, made for fun I work hard, everyday It′s all work and no play With the boss on my back He don't give me any slack I sit down, I daydream Of how my weekends gonna be Lookout weekend cause, here I come Because weekends were, made for fun Lookout. We have so many fog machines it can be intimidating trying to select the appropriate one for your needs! The main things to look for are amount of fog output, fluid consumption, timer options, and tank capacity. Lay the 4″ plastic conduit along one side of your cemetery with the open end at the location where the fog machine will go. Select the department you want to search in. Low fog machines are perfect if you are looking for an eye-catching effect for parties and weddings. It is equipped with a powerful 1500W heater that produces a high output of 18000 CFM (c. Additional comment actions Additional comment actions Additional comment actions Additional comment actions. Chauvet DJ Hurricane 700 Fog Machine (1) Pint of Fog Fluid (1) Chauvet DJ Mushroom Plug-and-Play Effect Light. 454836075Chauvet DJ Hurricane Bubble Haze Machine Essentials Bundle. Smoke can be used to create a dramatic backdrop, to create a smoldering fire effect or simply as a […]Professional fog machines designed for adding that extra kick to your special effects. Fog is generated at the contact of the splashed liquid with the colder air outside the machine. 00. I have them in all the trees to create thousands of laser dots last year. 24 month financing* i. Here's how (restrictions apply) Product information . This pseudocolor infrared space telescope image has blue, green, and red corresponding to wavelengths of 3. Very common screen types are waterscreens, gauze screens, rear projection screens or fog screens. Laser is amplifying the light intensity by the stimulated emission, There are different applications of laser in life either in the branch of applied science such as medicine, engineering and communication or in the branch of basic science such as Chemistry, Physics, Biology and Geology. Tape one end of the pipe closed with the duct tape. “Volumetric lighting is a technique used in 3D computer graphics to add lighting effects to a rendered scene. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. S. all products fog faze haze low fog co2 special effects accessories fluid fire training fog fogger jet battery powerded weatherproofed faze haze low fog co2 special effects snow & foam bubble wind scent accessories liquid supply control module remote flight case accesssories fluid fog haze snow bubble scent fire training smoke generator accessories. Making a DIY fog machine can transform your event or party into an unforgettable experience. Tamer Akgul steps in for Smoke Machines & Laser Rays next with his big bass & nu disco deep edge providing another perfect version of a great track. $74. Can thermal imaging see through fog?A laser diode (or diode laser) is a semiconductor device that undergoes stimulating emission to emit coherent light. For very thick fog (which is more likely to lie low), the mixture should have 30-35% of glycerine and 70-65% of water. Finally, he. Will not stain or leave residue. Here’s an 8-minute behind-the-scenes video we made of the experience: Fog Machine Landscape Photography (We won an award for this!) - Smoke Machine. 98. If the fluid is still clear (or it's original color) and doesn't have any debris in it, you can use it again. SKU: LASER-SWAMP-HOME. Signal Distribution. . 2 Gallons of Swamp Juice Included. No residual haze or fog, no worry of triggering smoke or fire. 6 laser modules with adjustable wall mounts and power supplies. The initial signs and symptoms of treatable radiation sickness are usually nausea and vomiting. Ships from United States. Shop. FREE delivery Wed, Nov 1 on $35 of items shipped by Amazon. Fog, Bubbles & Snow. 9 out of 5, with 12 ratings and reviews on Untappd. Forever You & Me (Vanilla Ace Remix) 06:53. $4999. 00. The least expensive laser pointers use a deep-red laser diode near the 650 nm wavelength. 95. The beginning of my DJ Setup when I first started. View similar gear. SEM and EDX analysis results are given in Figs. . $2,644. Antari Heavy Duty Smoke / Fog Fluid 20 Litre (Green Fluid) Our Price. Fog Machine Smoke 550W 5 three-in-one RGB Light Beads Smoke Machine with Remote Control for Halloween Party Stage. Step 2: Test your fog machine before debuting it at a party or as part of your décor. May 17, 2017 - Tumblr BlogOct 3, 2020 - Tumblr BlogCompare prices on Party laser Party Machines on PriceRunner to help you find the best deal online. The Chauvet DJ H1200 is a compact and lightweight fog machine designed by a very reputable company in the fog machine industry. Smoke Machines & Laser Rays - Sleazy Deep CHAUVET DJ H1200 – Best Alternative. Upslope fog: found around slopes such as mountains. 1oz. $ 125. A laser weapon is a type of directed-energy weapon that uses lasers to inflict damage. Laser Swamp® Spare Parts; Swag. 00 - $ 118 . The technique of ghost imaging, which builds up images of objects by combining information from light collected at two detectors, has been demonstrated in the x-ray regime. Today. When autocomplete results are available use up and down arrows to review and enter to select. Jumping Music, slick DJs, smoke machines and laser rays. Marco’s back now taking. Top Songs By Umut Akalin. Heated fog machines use a heating element to raise the temperature of the. Firstly, it varies as per the machine capacity. Slick DJs. 95. For the purpose of visibility of light beams from the side, sometimes a haze machine or fog machine is used. Scanning electron microscope (SEM) and energy dispersive X-ray (EDX) analysis. Includes 6 Laser Modules with Mounts. They do everything fun you can do in a closed gym, including a tomato driving range and a fog machine laser fight. The What is a laser? Laser stands for Light Amplification by the Stimulated Emission of Radiation. fog machines & laser rays since 2014. 99 $49. CR. Blog Top RatedTheatrical smoke and fog, also known as special effect smoke, fog or haze, is a category of atmospheric effects used in the entertainment industry. Smoke Machines & Laser Rays (Tamer Akgul Remix) 06:32. The higher the density of droplets, the more the infrared signal is diminished. (20 Reviews) £69. Fogscreen Pro is our linkable modular system used to create large scale seamless screens for the grandest of production ideas. com: First Imperial 400-Watt Fog Machine with Remote: Electronics Fog Machines and Laser Rays by Sandy Heyaime September 17th 2020 . Nov 25, 2016 - Jumping music, slick deejays, fog machines and laser rays. CO2 laser marking machines are also applicable for non-metals. Both companies sell a special fog juice formula for cooled, low-laying fog. Item. You may ask the optician for the spectrum report along with the delivery of glasses. Clearance. The width of the room is more important and the laser light tends to taper in strength when refracted through the haze. Show More. Each output is electrically and o. ANTARI M-1. When it comes to fog machines, the sky is the limit. Price: $189. 2. The amount of time between exposure and when these symptoms develop is a clue to how much radiation a person has absorbed. 00MSRP$534. ca at everyday low prices. Projectors. 98. 00. Literature. $ 799. 01 Smoke. Radiation therapy using X-rays has long been used to treat these conditions. In testing, these glasses scored high in. Unlikely to fit larger faces. Fog - Smoke - Haze - Bubbles - Snow - Confetti -. These images will be done on an x-ray machine called a simulator or on a computed tomography (CT) scan machine (see Figure 3). The Mk 38 Mod 2 Tactical Laser System. This option is also designed mainly for water-based foggers and should work perfectly well with 700+ watt fog machines. The fog machine for party equipped with an advanced electronic thermostat control system and special pipeline technology. The laser software used to create the beam patterns was Beyond, made by ILDA Member Pangolin Laser Systems. D6 Branch The D6 Branch is a 6-way DMX Splitter/amplifier. . 00. 2L Remote Control/Manual Control Packing Size:74*41*40CM Gross Weight: 25KG Smoke Coverage:80 Square meters Heavy ground fog machine for Wedding Party,Smoke Machine,Stage effect lights. The machine can pump out fog before the couple makes an entrance. Froggy's Fog - Boreas S4 Snow Machine With DMX. ; Add a circuitboard. Radiation therapy for brain tumors usually comes from a machine outside the body. It does not create faint rays as the mist created by glycol and does not create fine mist in the air like fog created by oil. The fog particles were measured with a microscope, Olympus BX51M,. due to cracked intensifying screen. Laser tag facilities, bowling centers, skating centers, theme parks, haunted houses. 6. I realized the AAA battery changes every 15 minutes last year for the green laser pointer pens that were attached to the spinning mirror on my laser vortex. Blu-ray & DVD-Players. Chairperson Conference of Radiation Control May 15, 2018 - 717 Likes, 3 Comments - Mason St. 40. Radiation fog: found in low-lying areas. 3: BrightFootBook Co2 Fog Gun. These professional fog machines are built to provide years of reliable use, and since we beat or match any price, nobody brings the fog at values like you'll find at AV Maxx. Qty:Antari Z-800II Fog Machine. 98. Smoke Machines & Laser Rays (Marco Tegui Remix) 08:29. 99. Event Lighting, Festival Lasers & Lights, Holiday decorating, Landscape Laser Lighting. Or $32. r/battlestations r/woahdude r/BeAmazed r/BeAmazed r/BeAmazed r/BeAmazed r/BeAmazed r. Designed for Small to Medium size machines ranging from 400 –. Well to make a long story short, I had a red green stage laser machine that stopped spinning. 2 Million cubic feet / 339,000 cubic meters of fog per minute. 00. Create a "pool" of laser light and surprise your attendees. Check out the Mister Kool Low-Lying Fog Machine. 5. 99. $249. Immobilization and Simulation. When you hear about Froggy's Fog, you almost always hear the words Swamp Juice as it has a hang time of up to two hours, resulting in less fluid consumption and less wear and tear on your fogger. 5. 295 views, 5 likes, 0 comments, 0 shares, Facebook Reels from SYNTHICIDE: FOG MACHINES & LASER RAYS: A SYNTHICIDE VISUAL DOCUMENTARY This hour-long. Beautiful, soft fog flows low along the floor, stage or set. 99. 1oz. LASER means Light Amplification by Stimulated Emission of Radiation , It can produce an intense , highly directional beam of light , The most popular cause of laser-induced tissue damage is the thermal in nature , The tissue proteins are denatured due to the temperature rise following absorption of the laser energy . These units have an output upto 1200m3 per minute on a 100% duty cycle. This fogger includes a wired remote control. 63. "Fog Machine with Juice, Cleaning Fluid and Timer" Special Effects Combo Package. Despite decades of research and. FEGNOMASHIC. 10% back in Gear Card Rewards**. 3. Every Day new 3D Models from all over the World. Ice fog: found when the weather is below -25F. And laser rays. 2V ; 20mA (this is comparable to any modestly bright LED) DatasheetThe TCFUNDY 1500W Fog Machine for Halloween is a high-output smoke machine that is perfect for creating a spooky atmosphere for your Halloween party, wedding, stage performance, holiday, dancing, or club. Fog fluid consumption: 12 liters per minute. FF-LASER-SWAMP. Water Only Fog Machine. Image from Hurlbut Visuals. . Filter by gender: Artists: Fog: Fog City Stompers: The Fog: Fog: J Mascis & the Fog: Flying Machine: The Karaoke Machine. Frequently bought together. The synchronization of these systems will increase traffic safety in bad weather. The laser projector used was a ClubMax 6000 from ILDA Member Kvant. R720L+RLB70. Approx 5-10 business day delivery. Posts: 2,942. $169. SKU: X-BLITZZFX X2. Safe for use anywhere! Includes 6 Laser Modules with Mounts. - Unlike theatrical fog, which is typically intended to be dense. They are anagrams of each other and therefore include the same components. FOG MACHINES & LASER RAYS: A SYNTHICIDE VISUAL DOCUMENTARY This 90 minute long limited edition VHS highlights some of SYNTHICIDE's most memorable. net has done its utmost to meet needs astronomical, educational, medical, military and private use. Event by Dave Rout on Wednesday, July 12 2023When autocomplete results are available use up and down arrows to review and enter to select. Stage performances are enhanced with the subtle and 'magical' appearance of low. Mister Kool II by ADJ Fog Machine. Now $ 1999. Shop Best Buy for DJ lights, strobe lights, and fog machines to make your party the ultimate experience. 50. The photons strike the atoms, creating more and more photons bouncing back and. View as:Grid List. It is super thick on the front end and creates the perfect graveyard ground fog but here comes the good part; it is formulated to hang in the air to create the spooky graveyard scene as well. *. How To: Make a cheap DIY laser vortex for fog machines and lightshows How To: Make a laser out of a lighter How To: Build Halo 3 human weapons with. AVE High Performance Fog Fluid - 5L. The US-Israeli Tactical High Energy Laser (THEL) was used to shoot down rockets and artillery shells before being canceled in 2005 as a result of "its bulkiness, high costs and poor anticipated results on the battlefield". Step 1: Empty the Fluid Tank. 00 Special test Price £37. Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. There are fog machines and there are haze machines, but what's the difference between them and can you use them in the same way? Also, what's this about oil-. (16) $74. Submit your writingFog machine Got a smoke machine today its amazing how much better even though my lasers are weak how good they look with smoke. Image from Hurlbut Visuals. Fog Machine, BZBRLZ 500W Smoke Machine with 13 Colorful LED Lights Effect, 2000CFM Fog with 30cm Wired Receiver and 2 Wireless Remote Controls, Perfect for Wedding, Halloween, Christmas Party (A) 308. Connect via 3 Pin port and an additional XLR cable (not. Rockville R1200L Fog/Smoke Machine w LED Lights/Strobe, 7 Channel DMX+2 Remotes. By. Rust Wiki. Create a "pool" of laser light and surprise your attendees. 50 or gallons for $31. Soot particles in smoke effectively block visible light, but allow infrared radiation to pass through, letting firefighters or other first responders navigate through smoke-filled environments. The image receptor is held in a similar casing (cassette) to that of the traditional film screen. a haze machine to create the fog, 12 gallons of haze fluid, instructions and reflective mirrors to add even more square footage to your swamp if needed. Your therapists use these laser lights as a guide when they position you on the table. Titan H2 Hazer also included. Listed on 27 Sep, 2022Numark PartyMix II DJ Controller + 15" Active Speakers+Fog Machine, Laser & Lig. In today's video I want to show you how to build super powerful fog machine from cheap hair dryer. 99. Swamp Creeper 3000 Watt Best Low. Blitzz Large Powder Cold Spark Effect Granules for Indoor or Outdoor Use Titanium Alloy Grains Effect Height: 3-10ft 1-3m. We are the top supplier of stage effects machines in Dubai and the Middle East. Jk this is heccin beautiful 😍. Additional comment actions. Back to top Get to Know Us. Regular Price: $119. Does not include haze machine, haze fluid, etc. Generates a thick cloud of fog. See how a simple 4 Beam Laser and a fog machine (from Donner) can create a stunning display of laser beams! First learn the laser’s functions and features th. com: fog machine laser. Connect with several Hasebase 3 pin machines this simple function controller allows for variable smoke output from a distance from the machine. 00 Special test Price £37. Optoma gt2000hdr full hd 1080p laser projector :: e9pd7kk31ez4 (projectors > pr. Laser. Burman PhD, in Leibel and Phillips Textbook of Radiation Oncology (Third Edition), 2010 Computed Radiography Systems. FOG MACHINES & LASER RAYS: A SYNTHICIDE Visual Documentary 2021-2023 The physical copies have finally arrived! For those of you who bought a copy. 86 μm, 1. Generally rises faster than haze. All Froggys Fog and Haze Fluids are made from lab-grade. Nearly any color of smoke is available. Lab testing for COVID-19 (also known as the novel coronavirus or SARS-CoV2) has increased greatly since the virus spread across the globe in spring 2020. 00 Intro Video Specs Intro Global Special Effects F-1500 RGB Fog Machines combines the functionality of a high-output fog machine with the added element of LED lights to create a one-of-a-kind effect! The F-1500 RGB shoots fog outwards with. Additional comment actions Additional comment actions Additional comment actions Additional comment actions. Now $ 1499. Laser safety. X-LASER | sku: HB-0834. Free shipping, arrives in 3+ days. You can watch, listen to, and stream almost anything you like – including. The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission. 4: AZfiner Bazooka Bubble Machine Gun (Child-Friendly Fog Machine) 5: HAKUTA Fog Machine. 315 μm) with visibility in a range of 0. One way of dealing with these threats is a hybrid laser/kinetic weapon called the Mk 38 Mod 2 Tactical Laser System. Boyz Not Toyz Umut Akalin. Small 82 seat community theater. DetailsLaser Swamp - Individual Laser Module (Includes laser, power supply and mount)Features:6 Month Warranty8,000 Hrs estimated LifespanIncluded Articulated Mounting Bracket and Power Supply (5VDC / 1000mA)Class IIIBSpecifications:Red: 100 mW / red 650nm laser module: Diameter 16mm * Body Length 68mmGreen: 50mw /. Drain the remainder of the smoky liquid. Laser is amplifying the light intensity by the stimulated emission, There are different applications of laser in life either in the branch of applied science such as medicine, engineering and communication or in the branch of basic science such as Chemistry, Physics, Biology and Geology. View as:Grid List. 3 metres onto the glasses. Re: Fog Machine + Laser + Sub-Woofer = Cool I have been looking around for a program I had a while ago in which you could draw a picture and it would generate a WAV file that would drive galvos via the soundcard. 1: U'King 1200W Fog Machine (very powerful) 2: Beamz ICE1800 MKII Ice Fogger Machine. Fog is a swirling, moving mass. These ingenious DIY fog machines can be used for Halloween parties, outdoor events or even as an affordable solution for stage productions. Sort By Recommended Most Popular Price: Low to High Price: High to Low Availability Newest Oldest Title. This time,. Add to cart. If the fog is only being lit with a red spotlight, red is the only color it can reflect back. Your Price: $69. Goldfinger, the 1964 James Bond movie, offered a tantalizing glimpse of a future where industrial lasers could slice like magic through anything in their path—even secret agents!Later the same year,. 1: This is also why the sky is blue, incidentally. As a result, you should get a foggy fluid (pun intended) without clear areas. Ion chambers have a little bit of radioactive material that sets. . Includes 6 Laser Modules with Mounts. We need to fill the air with particles, as these catch the light and create our rays. Fuel consumption: 1 liter per minute. Best YouTube Comment: “probably Smiley is a fan of American series The Walking Dead so he’s one of those Zombies (dead man walking), just kiddin’ nothing serious. Boeing. 99. A false-color image of two people taken in long-wavelength infrared (body-temperature thermal) radiation. This can be fog or haze for beam shows, or all kinds of screens for projections. American DJ DF64 LED Par Filter. -2 X Chauvet 400 Watt Fog Machines-2 Gallons Swamp Juice. Quick view Compare Add to Cart. Conclusion. Due to this, ANSI/ISEA Z87. Froggy's Fog Halloween and Party Fog Fluid, High Output Long-Lasting Fog Juice for 400-1500 Watt Water-Based Fog Machines, Great for Pro and Home Haunters, Theatrical Effects, DJs, and More, 1 Gallon eletecpro Halloween Fog Machine with Wireless Remote Control, Portable 500W 3 LED Lights with 12 Colors, 2000 CFM Professional. $249. 24 per page. American DJ VF1300 Mobile Effect Fog Machine. Laser radiationIf you live in a major metro area, the local photo grip house will generally rent these generators for $50-60/day. The smoke detectors at my house are line-voltage wired and they trip from my fog machine. Enabled – Enables or disables the VRayEnvironmentFog. Experience full coverage with this wrap-around lens that guarantees protects us from full laser exposure in all fields. He flies, and he is mostly indestructible. Albeit their fog machine exposure had been less intense, two of them had recently developed intolerance against cinnamon containing cookies, in the form of reflux 30 min after consumption. Super long 5 pin dmx type remote control, but not dmx addressable. Fog Machines. Slightly more expensive ones use a. Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA. 00 £55. View the special effects equipment online and order today, or call us if you. GASOLINE - Scented Cologne Spray. We get it. Anti-Radiation Pills; Bandage; Blood; Large. Haze is especially useful to accent ray tracing without obscuring visibility. This Digital Prints item by ExVotoDesignDigital has 8 favorites from Etsy shoppers. LOW-LYING FOG EFFECTS. Supercomputers fire lasers to shoot gamma ray beam.