I have a green laser from Amazon, (lots actually) and they always get dirty and I try to clean them but nothing works and then I just buy more to fix that problem. I don't want to keep buying more until they actually stop working on their own. Is there any kind of lens cover or protector for them?
There are laser cases, however, depending on your type of laser, there are different sizes and types of these cases. I don't think there are any laser lens covers, since you want as little disturbance between the light source and where your beam hits. You could try buying a different type of laser that has a better casing if you have to keep buying more. Good luck!
Sometimes the most damaging scratches are the ones you can't see--those hidden in your CD or DVD drive's laser lens. Take care of them in seconds with the SkipDr laser lens cleaner. Its disk-shaped design reaches where you can't, helping repair surface scratches for trouble-free picture and sound quality. From Digital Innovations.
Highlights: PS Two Laser Lens Type: PVR-802WSupport 90000 consoles with this type lens. Specification: Color: SilverDimensions (cm): 9.8 x 7.8 x 1.8Weight (Kg): 0.084 Package Contents: 1 x Laser Lens with Handle for PS2 90000
The CD and DVD Laser Lens Cleaner is specially designed to remove dust from a CD and DVD Player's lens. The 7 sound optimization tools are designed to optimize the sound quality of your stereo system.
- Replacement of 410 laser lens ribbon cable for PS3 - It is the perfect replacement for your damaged or broken laser lens ribbon cable - Easy to install no special tools required - Compatible with: PS3 410 ?
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56500 56500 Laser Lens Cleaner Eight brush system cleans off the entire laser lens Will not damage sensitive optical components Enjoy your Netflix titles more or improve your music archive by cleaning your optics in your CD or DVD ROM The Lens Cleaner uses eight staggered brushes that progressively pass over the laser lens to clean the entire surface. The cleaning process takes only a fraction of a second and can actually prolong the life of your disc player. Allsop even included easy-to-use voice instructions on the disc, so you know when it's done. Allsop Allsop, Inc Electronic Equipment Lens Cleaner Optical Disc Player Optical Drive VCR www.allsop.com
Use this laser lens cleaner to remove dust and dirt from your DVD player or computer DVD drive's laser lens. The 10-brush cyclone clean process cleans the laser lens and helps to create better DVD playback.
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DeWALT DW0714 Laser Enhancement Glasses DEWALT is a leading manufacturer of industrial power tools with more than 300 power tool and equipment products as well as 800 power tool accessories. DEWALT tools can be found wherever tools are sold, nationally and internationally...
Coast Cutlery P7 Tactical LED Flashlight is designed to provide efficient lighting. It features one handed speed focus and a three step Quick-Cycle switch.
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* CD/DVD Rom Cleaner .* Works with All CDs and DVDs .* Includes 1 Bottle of Cleaning Solution .* 1 pc Blister Pack .Very easy to use to clean any CD or DVD Case Pack 12 Please note: If there is a color/size/type option, the option closest to the image will be shipped (Or you may receive a random color/size/type).
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First, a 10x lens is the most poplular and best power for a handheld magnifier. The BelOMO 20x 17.5mm (0.50'') Qaudruplet Loupe Magnifier has a viewing area of 0.28" (7mm), much larger than the Bausch & Lomb Hastings Triplet Magnifier...
This Green Laser Pointer comes in our beautiful Black Matte finish. Green lasers has so many uses: * Astronomers * Teachers * Students * Bird Watchers * Presentations * Tour Guides * Construction Workers * Scientific * Military * Security applications * Forensics Investigations * Play with pets (Dogs and Cats LOVE chasing the laser dot) Use to point out distant points of interest Imagine a bright beam of light that is visible from up to 2 miles away! It has a Class IIIa rating, this is the most powerful green laser allowed within the law...
Specially designed to remove dust from a CD and DVD player's lens, this laser lens cleaner contains six brushes to gently remove dust and dirt from your disc players' lens, and seven sound optimization tools for use with audio setup and designed to optimize the sound quality of your stereo system.
SAME EXACT ONE SEEN ON GHOST HUNTERS! Except this one has 4 additional lenses as a bonus!! This high powered laser emits a grid of green dots useful for detecting shadows or general visual disturbances during an investigation...
Extend the life of your disc player with this Digital Innovations CleanDr 60120 00 CD Laser Lens Cleaner. It'll keep your player operation at peak performance.
Fixes scratches that can cause discs to skip freeze and fail to playEasy-to-use: spray spin and shine Manually-operated with easy disc load and ejectIncludes resurfacing fluid drying cloth and felt buffing square
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NS-D320 Four Lens Laser
Laser Marking Steers a New Course in Manufacturing
As the technology of laser marking has advanced, new markets have evolved to take advantage of increasingly faster marking speeds as well as greater marking precision and imaging capabilities. Continuing developments in laser-cavity design, beam-steering and focusing optics, and computer hardware and software are expanding the role of the systems.
Steering the beam
Of the available marking technologies, beam-steered laser marking systems provide users with the greatest amount of image flexibility in a fast, permanent, noncontact marking process. As manufacturing processes become more automated and after-sale tracking more prevalent, laser markers are frequently the only method available to produce individually unique, permanent images at high speed.
Beam-steered laser marking systems usually incorporate either a CO2 or Nd:YAG laser. The CO2 laser emits a continuous-wave output in the far-infrared (10.6-um wavelength) while the Nd:YAG laser emits in the near-infrared (1.06 um) in either a CW or pulsed mode (1 to 50 kHz). The Nd:YAG laser is also unique in its ability to produce very short, high-peak-power pulses when operated in the pulsed mode. For example, a typical 60-W-average-power Nd:YAG laser can produce peak powers on the order of 90 kW at 1-kHz pulse rate.
The delivery optics consist of either a simple focusing lens assembly or a combination fixed upcollimator and flat-field lens assembly. In either instance, the laser beam is directed across the work surface by mirrors mounted on two high-speed, computer-controlled galvanometers.
The simple focusing assembly offers the advantages of low cost and fewer optical components and is routinely used with CO2 lasers. The flat field lens design, though more expensive, maintains the focal point of the marking beam on a flat plane for more consistent image characteristics throughout the marking field. The flat-field lens also produces higher power density on the work surface than the simple focusing assembly due to the shorter effective focal length. The flat-field lens design is always preferred for high-accuracy and high-image-quality applications and is usually incorporated with Nd:YAG lasers.
Both designs provide the user with a selection of lenses that establish both the diameter of the marking field and the marking-line width. Longer-focal-length lenses provide larger working areas, but the line width is also enlarged, thus reducing the power density on the work surface. The user must compensate by either increasing the laser output power and/or decreasing the marking speed which usually consists of two lenses and may be placed anywhere in the beam path before the focusing lens. A beam expander often is used instead of extending the beam path approximately 10 more feet, in which the beam expands through its inherent tendency to diverge as it exits the resonator cavity. A spatial filter inserted within the beam expander produces the best mode quality in close-coupled systems, by passing the beam through a small aperture.
The last optical element that a laser beam encounters is the focusing lens. With CO2 lasers, this lens is usually made from one of several materials: Zinc selenide (ZnSe), gallium arsenide (GaAs) or germanium (Ge). ZnSe, a dense, yellow material that is transparent to visible wavelengths, is by far the most common of these materials, and it allows a low-power, HeNe laser beam through for alignment purposes. This is a great advantage over GaAs or Ge which are opaque to light from the visible portion of the spectrum.
Nd:YAG lasers almost always employ beam expansion, usually in the 2x to 5x range, because of their initially small beam diameters. Spatial filters for CO2 lasers must be external, but those for Nd:YAG lasers can be located inside the laser cavity itself, and many different sizes are available for mode selection.
Nd:YAG lasers employ optical glasses such as BK-7 or fused silica for lenses. The 1.06-um wavelength of these lasers is close enough to the visible spectrum to permit adaptation of standard optical devices with the correct AR coating to direct the laser light. For example, microscope objectives can deliver Nd:YAG laser light to the surface of VLSI circuitry for micromachining of conductor paths. As discussed earlier, delivering a Nd:YAG laser beam with fiber optics offers incredible advantages over fixed-optic delivery. The fiber advantage is unique to Nd:YAG lasers and has created an enormous growth in their use for industrial materials processing.
Fiber optic delivery for Nd:YAG
The use of fiber delivery with YAG lasers is so extensive in the industry that it should be discussed in more detail. Approximately 90 percent of new Nd:YAG welding installations involve fiber optic delivery. Because the 1.06-um wavelength is transmitted by glass optics, it can be used in standard fiber optics. Conventional beam delivery is extremely cumbersome, prone to misalignment and contamination to the optics, and can be very expensive due to custom layouts. Fiber provides a real answer to all of these problems. The benefits are:
Fibers deliver laser energy over distances which, in practice, would be impossible to achieve using conventional optics. Distances of up to 50 meters are achieved quite routinely.
Stability and accuracy are improved since only the final focus optics need to be held in an accurate relationship to the workpiece.
Most applications can be handled with standard delivery hardware (avoiding custom design).
Fibers are flexible and, within the limitations of minimum bend radius, can follow any desired route to the workpiece.
The workpiece may be held stationary while the fiber and output optics move during processing making them the ideal delivery system for use with robotic manipulation.
Fibers make the design of time and energy sharing beam distribution systems a practical possibility. The use of such systems significantly increases the flexibility and versatility of individual lasers by allowing them to address multiple workstations or produce multiple simultaneous outputs.
Access to the laser head for routine maintenance is improved since the positioning of the head is not dictated by the beam delivery system.
The low-cost fiber can be delivered to areas that are dangerous because of explosives or radiation while the laser head is located in a non-hazardous area.
Spot size at focus does not alter with changes of average power.
The optics of fiber delivery are simple and straightforward. Fiber optics used for laser delivery are typically step-index fibers. This type of fiber consists of an optically uniform core between 200 and 1500 um in diameter, surrounded by a thin cladding which has slightly different optical properties.
There are several options to fiber optic beam delivery. The first is single-fiber delivery from a single laser. This type of delivery is generally used for a dedicated production process or in development labs where moving the beam delivery to other workstations is infrequent. The choice of a single-fiber delivery is easily justified by its ease of use, ease of integration to workstations, and the capability for upgrading the system with other options in the future. Other reasons for single-fiber delivery are for robotic delivery of the laser beam and other multiaxis systems where conventional delivery would be a nightmare. With fibers, the output housing is mounted on the final-motion component so integration is incredibly economical and simple.
Another fiber delivery option is time sharing, whereby all of the laser output can be directed into any one of the several fibers on demand. A single laser with this system can provide laser energy to several different workstations switching among them at up to 40 Hz. These systems are typically used for laser welding at many different workstations, or to deliver the laser beam to separate areas of one large assembly station.
The last option is termed energy sharing. These systems divide the laser output and send the energy into several fibers at the same time. Mirrors skim portions of the beam from the laser and divert them into the input housings for each of the fibers.
The relative extent that each skimming mirror is moved into the beam path determines the sharing ratio. Typical energy-share systems can split the beam into as many as four fibers. These systems are used to weld many parts simultaneously, in order to increase throughput, or to eliminate the part distortions that often result from sequential welding of a single assembly.
The system computer creates marking images by sending beam-motion signals to the galvanometer drivers while simultaneously blanking the laser beam between marking strokes. The motion of the galvanometer-mounted mirrors directs the marking beam across the target surface much like a pencil on paper to draw alphanumeric and graphic images.
Laser selection
Laser marking uses the high power density of the focused laser beam to generate heat on the work surface and induce a thermal reaction. A readable, contrasting line is produced by increasing the target surface to annealing temperatures, the melting point or to vaporization temperatures. Annealing and melting are employed to induce a contrasting color change on a wide variety of metallic's as well as plastics, ceramics and other nonmetallic's. The fastest marking speeds are obtained by increasing the temperature to the vaporization point to engrave metallic's and many nonmetallic's.
The near-infrared wavelength of the Nd:YAG laser is well suited to most metallic's and many plastics. The Nd:YAG can anneal or melt in both the CW and pulsed mode and can provide the necessary peak pulsed power to engrave. With many materials, the Nd:YAG can simultaneously engrave the surface and induce a contrasting color change in the engraved trough.
The far-infrared wavelength of the CO2 laser is compatible with plastics, ceramics and organic materials. However, without the high-peak-power capability required to achieve vaporization temperatures, the CO2 laser is limited to annealing or melting the surface.
Advantages
Beam-steered laser marking offers several advantages over other marking methods. Most apparent is the unique combination of speed, permanence and the flexibility of computer control. Although other technologies can provide one or two of these attributes, no other method offers all three to the same degree.
Many users also benefit from the noncontact nature of laser marking. The only force applied to the part during the marking cycle is the very localized thermal effect of the laser beam. No additional physical force is applied, with the exception of any appropriate part-handling motion designed into the system. Silicon wafers, silicon disk drive read/write heads and many medical devices are examples of components that are too fragile for any type of mechanical marking. In addition, laser marking provides the permanence necessary to satisfy image-lifetime requirements, while printed marking does not.
Laser-marking systems also excel at creating intricate graphic images. Nd:YAG lasers can produce marking-line widths on the order of 0.001 inch or less, which, when combined with marking resolution of 0.0002 inch/step, can produce images with much more detail than mechanical contact or stencil systems.
Regardless of the specific process justifications for incorporating laser marking, the application of the technology can result in significant cost savings. With operating costs for the Nd:YAG system, users have reported cost savings of greater than 90 percent and associated reductions in quality control and inventory expenses.
As manufacturing industries continue to automate their manufacturing processes, incorporate aftershipment traceability, reduce manufacturing cycle times, apply more sophisticated graphics and develop products requiring new marking techniques, the laser-marking manufacturers will continue to improve the power, speed, image-generation capabilities and user-friendliness of their products.
About the Author
Richard Stevenson is the Sales Director for Control Micro Systems, Inc. a manufacturer of beam-steered laser marking systems. He has published and presented numerous technical papers and articles on laser marking in trade publications. For information on Plastic Welding, Engraving, Cutting, Etching or Marking call 407-679-9716 or email sales@cmslaser.com
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