costruire un laser da 250mW con un masterizzatore (prima parte)
Posted by baki in Laser Videos on March 10, 2010
come costruire un laser da 250mw avendo un masterizzatore dvd… questo filmato è a solo scopo informativo!!! non mi assumo nessuna responsabilità dell’uso che ne potrete fare… se avete domande non esitate a chedere… avendo avuto qualche intoppo (il laser era danneggiato) non ho potuto mettere la seconda parte ma ci sarà a breve… come inserirlo in una normale torcia e il test…. attenzione agli occhi perchè non perdona…
Laser Plastic Cutting
Posted by baki in Laser Articles on March 10, 2010
Laser-aided cutting has brought about a revolution in the manufacturing industries. These high-powered optical beams are used to cut through a variety of materials such as metal, wood, glass and plastic. The laser is directed at the required surface and moved around to cut the material in the desired shape. Laser cutting gives a finer finish to the end product as compared to conventional cutting methods.
A typical laser beam is about 1/5th of a millimeter in width and has an intensity of 1000 to 2000 watts. Most laser cutting machines are integrated into a CAD/CAM system that helps the user design the end product on a computer before implementing it on the work piece.
Laser cutting devices are proving beneficial in a wide array of industries. The plastic industry is no exception. These optic powered devices are used to cut precise shapes into plastic or acrylic sheets. The lasers can be used to cut plastics of varying thickness by simply altering the intensity of the beam. Lasers are not only used to cut through plastics but also help engrave on various surfaces.
Laser plastic cutting machines bring precision and accuracy to the entire process. Since most machines are fully automated, they can perform complex cutting operations at high-speeds. The laser plastic cutting machines can also be used to cut polymers, polycarbonates and other synthetic materials such as polyesters and rubbers.
The laser cutting method uses a non-contact approach when cutting the material. Due to this, the wear and tear associated with conventional methods is absent, preventing the product from any damage and deformation. The laser process also delivers a finish quality unmatched by any other process.
When using laser plastic cutting machines, care should be taken to avoid the use of flammable plastics such as PVCs. These materials cannot cope with the heat generated by the laser and get damaged easily.
Brian Looks At The Galaxian 3D By American DJ!
Posted by baki in Laser Videos on March 9, 2010
Music Available on CD Pool Dance May 2009 The Galaxian 3D From American DJ: • Produces Laser patterns that can be projected on a ceiling or wall • Massive beam spread covers a large area Over 500 red and green laser beams • Green laser rotate back and forth creating a new dimension…
Laser Hair Removal – How Does it Work?
Posted by baki in Laser Articles on March 9, 2010
Laser technicians are often asked, “How Does Laser Hair Removal Work?” Many clients are unfamiliar with the process and require clarification on the details of the treatment. Some potential clients may be unsure because the term “laser” can be used in so many contexts from science fiction to military hardware. Estheticians need to be aware that some people may come to them with unfounded fears regarding this type of treatment for unwanted hair. They may be worried about pain or damage to underlying tissues beneath the hairs they wish to target.
Honest Assurance
When asked “how Does Laser Hair Removal Work?” laser technicians must respond to this question with clarity, sincerity and empathy. Explain the procedure by describing the effects of the laser on the hair follicle and assure the client that the precision of the laser protects the surrounding and underlying tissues from damage. Feel free to show diagrams depicting the hair follicle and the effects of the laser upon them. Oftentimes pictures can make an idea much clearer for many people.
Alleviating the Fear of Pain
Often, the question “How Does Laser Hair Removal Work?” is another way of asking, “How much will it hurt?” A professional will always take the time to assure potential clients that the pain involved with laser hair removal is minimal if at all. It is also a good idea to provide the most fearful clients with a topical anesthetic, or use a cold-air system to make the procedure more comfortable.
Offering an honest comparison with other methods of hair removal will often convince apprehensive clients that they are making the right decision and help them to relax for the procedure. Stories from your own personal experiences with hair removal can help to develop rapport and put your client at ease.
5 Things You Should Never Do With a Laser Pointer, Portable Laser Or Even a Laser Module
Posted by baki in Laser Articles on March 7, 2010
1 Look directly down the laser
Some people out of curiosity, trying to fix a fault or just out of sheer stupidity will look down a laser into the lens where the laser beam comes out. I don’t care whether your finger is off the on button, you’ve taken the batteries out or if the guts of laser are spread all over your work bench, you NEVER look down a laser. You would never look down the barrel of a rifle and in the same way you should never look down the laser.
Most eye injuries with portable lasers have occurred when some one was looking down their laser thinking it was safe. A classic case was when a laser enthusiast looked down their laser when cleaning the lens only to realize too late that they forgot to take the batteries out. That person now has a permanent blind spot in their eye.
2 Point the laser at aircraft
This looks like a very obvious not to do with a laser but judging from the amount of people out there pointing lasers at aircraft, it is not obvious enough.
Apart from the safety and hazard issues involved, pointing lasers at aircraft is a federal offence in just about every country. So if you want to end up in federal penitentiary breaking rocks for the next 10 to 20 years, please go ahead and be my guest.
If there is one thing that sensible laser enthusiasts hate, it is people who point lasers at aircraft. Not only is it dangerous and incredibly stupid, it is also responsible for over regulating portable lasers to a point where the hobby may not have a legal future.
3 Point the laser at people
Another obvious “not to do with a laser” that too many people out there don’t seem to understand. High power lasers are dangerous to your eyes so if you point a laser at some one, there is a chance you will injure their eyes. It is that simple.
Sure you might just be pointing the 500mW laser pointer that can light cigars at their hand, the back of their head or on the bridge of their nose where every one knows is safe. What happens though if they move, your hand slips, some one bumps you or any one the many things that can go wrong do go wrong? What happens is in that one split second you are responsible for that person losing partial to complete vision in that eye.
4 Use the wrong equipment or method to clean the lens
The most common cause for damage to laser pointers and even laser modules (apart from being dropped) is people clean the lens incorrectly. The lens in lasers is a precise and delicate optics that is easily damaged so great care needs to be taken when cleaning them. There are a lot of methods for cleaning lens ranging from tissues and t-shirts to microfiber and lens pens.
The only completely safe methods of cleaning laser lens is to gently blow compressed air on the lens and to use professional optics cleaning tools such as lens pens. If you do use some material such as cotton buds, make sure you also use a fluid such as lens cleaning fluid. Cleaning the lens when they are dry will just cause dust on the lens to scratch them.
5 Modify lasers
Modifying a laser is when you use one of several methods to increase the power to the laser diode so the laser beam has more power. All lasers, whether they are laser pointers or laser modules can be modified and it sounds like a very cheap way to get a high power laser.
The problem with modifying lasers is that lasers are not designed to handle the increased power levels and modifying them will normally damage or destroy the lasers in a matter of minutes. If you don’t mind ruining your laser or you are interesting in modifying your laser as an experiment, go ahead. If on the other hand you’ve spent several hundred hard earned dollars to buy your laser, leave it as it is.
Click here for Laser Safety Glasses
India’s Anti-ballistic Missile – PAD -Intercepts Medium Range Ballistic Missile -Part 7
Posted by baki in Laser Videos on March 6, 2010
India’s Anti -Ballistic Missile System will be Multi-Layered. 1. AAD and PAD – can hit ballistic missiles at the terminal Phase. ( Altitude 100 km ) 2. AD-1, AD-2 and Anti-ballistic Missile Multiple Kill vehicle or ABM-MKV – (under development) can intercept missiles at the mid phase. (Mid Phase Altitude of Ballistic Missiles from the Interception side 100 to 1200 km) 3. Laser weapon (under development)- It is for intercepting boost phase of ballistic missile. Altitude 100 to 400 km (Ground based laser and Air borne laser-ABL, and space based laser weapon) part of weaponization of space program
MMTV När Man Är Fjortis ♥ Fancy & Jazzo
Posted by baki in Laser Videos on March 6, 2010
Fancy & Jazzo sjunger om sitt hårda fjortisliv i sin tolkning av Laser Inc När man var liten… Producerad av moonchild Kör: Michaela & Shauni
High Power Laser Pointers – The Laser Beam Brighter Yet Blinding
Posted by baki in Laser Articles on March 5, 2010
Laser pointer enthusiasts are always looking for lasers with high power. It seems the more dangerous the laser pointer the more people want to get their hands on them. The reality is that military laser pointers are readily available via the internet these days, and people from all over the world are utilizing high power laser pointers for various applications, with little regard to danger.
If you are looking for powerful lasers and have some experience handling high power laser devices, than you will find the web a great tool to shop for all of your laser goods. The beauty is that this is entirely open to the public as well. Laser pointers are no longer cheap keychain lasers that are being sold on street corners, technology has turned them into advanced portable laser light gadgets. If you are familiar with astronomy lasers you have seen much of the transformation over the past several years, and luckily for us, high power laser pointers are now relatively inexpensive in price.
One thing every laser user must remember is laser safety must always be kept in mind, most importantly when handling high power lasers over 200mW or 300mW. The higher the output power of the laser, the brighter and more intense the beam will appear. Many high power lasers are capable of popping balloons, lighting cigarettes or cigars, even cutting through electric tape. If you have ever searched for powerful lasers on youtube you know what powerful portable lasers are capable of. Knowing the danger and potential hazards of these burning lasers, you really must keep your safety and the safety of others a number one priority when your powerful laser pointer is engaged.
Green lasers are typically designed with the largest potential for higher power. This is not only because the 532nm green beam frequency is the brightest color in the visible light spectrum, but also because green lasers are quite simple to modify in the production stage for higher laser output. The potential for hand held lasers on the market today goes from your simple 5mW green laser pointer to 100mW and even in excess of 300mW. Some of the worlds most powerful laser pointers are literally just a click or two away if you know where to look, but remember, use your high power laser with caution. If the beam is capable of burning industrial strength electric tape, what potential hazards can we see to human flesh or your eyes retinas? Do not let the allure of a high power laser distract you from the danger you possess, shine with care, and don’t for get to enjoy what technology has brought upon you.