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Laser Pointer

Maverick Laser Surface Thermometer $47.25 Maverick Laser Bbq Thermometer – Maverick LT02…

HQRP IR Digital Non-Contact Infrared Thermometer Temperature Laser Gun w/ Laser Pointer plus HQRP UV Chain / UV Radiation Health Tester $21.91 HQRP Infrared Thermometer w/ Laser Pointer. Use abroad: can used for food, safety-inspect, fire inspect, power vehicle and diesel engine, plastic factory etc. HQRP UV Chain / UV Radiation Tester: To know the Solar UV Index, it is enough to compare the colorchange with the 4 standard colors around. Very light purple: low intensity, UV index 1-2. Sun-protection not necessary. Light purple: medium in…

ThermoWorks Gun shaped Point and Shoot big digit Next Generation Food Safety Infrared thermometer with built in laser pointer $69.00 ThermoWorks Gun shaped Point and Shoot big digit Next Generation Food Safety Infrared thermometer with built in laser pointer: High Quality 12:1 optics, Bright laser pointer, Point and Shoot simplicity. Max temp and reading hold features, Handy button for switching from °C to °F ,Range to 536°F (280°C). Measuring Range: -67°F to 536°F, (-55°C to 280°C). it gives the reading in one second!….

PowerPoint Radio Frequency Wireless Remote Controller w/Red Laser Pointer (Style V105 W/O Flash Memory) …

HDE Temperature Gun Infrared Thermometer w/ Laser Sight $12.00 Available in red or yellow….

Kintrex IRT0421 Non-Contact Infrared Thermometer with Laser Targeting $43.39 The IRT0421 Non-Contact Infrared Thermometer with Laser is designed to accurately measure temperature from a distance. Simply pull the trigger and aim the pistol grip thermometer at an object using the laser indicator and the unit will provide an accurate temperature measurement in less than a second. The IRT0421 has an advanced highly accurate infrared sensor with a Distance to Spot Ratio of 12 t…

Streamlight 65030 Stylus AAAA Replacement Batteries, 6-Pack $2.50 6 pack of AAAA batteries for use in Stylus Ultra Slim Pocket Lights…

Episode 4 $1.99 …

Gold Peak – 23A Alkaline Batteries – 5 Pack $0.01 The shape and aspect ratio of the A23 battery are similar to those of a common AA battery. However, an A23 battery is much smaller than even an AAA battery, measuring only 29 mm long and about 10 mm in diameter, with a typical weight of 8 grams. An A23 battery is a dry cell-type battery mainly used in small electronic key fob devices, such as keyless vehicle entry systems, home security systems, a…

One Zero Point Energy Nano Wand Pen By Quantum Value $6.74 Zero Point Energy Wand Usages: Discharge energy blockages in your body Energize all foods and liquids! (Wand anything with water in it and notice the increased taste and vibrancy!) Put the wand your fridge, increase the life and taste of everything in it! Supports the self-healing process in the body Relieve a variety of injuries, and long standing aches and pains! Neutralize Free Radicals in you…

Fact & Fiction of Green Laser Pointers and Aircraft

With the increasing popularity of high power green laser pointers, there are more and more reports of lasers being pointed at airplanes and helicopters. In 2008 alone there a number of reports that received wide spread media coverage. One such case in the United Arab Emirates capital of Dubai, two Arab men were charged, tried and convicted with pointing a laser beam at an aircraft during landing.

The exposure of these cases has received has led to a number of misconceptions and misunderstandings on green laser pointers and their danger to aircraft. The purpose of this report is to separate fact from fiction.

Back ground information on lasers

Very simply laser beams are very concentrated and narrow beams of light and lasers can have a range measured in tens of kilometers. A high power green laser pointer may have a range of 20 to 30 kilometers but it will not have any power or be dangerous at this range. Even the best quality lasers will have a beam that grows in size by 10cm for every 100 meters. By the time the laser beam has covered 1 kilometer, the beam will be the size of a door way and will be incapable of causing any damage or harm.

Green laser pointers not red, blue or orange laser pointers are the main lasers pointed at aircraft because green is much more visible to the human eye than the other colors. The other reason is blue lasers and orange lasers are too expensive and relatively low powered to have wide spread use.

Real and imagined dangers

There are no commercially available and very few if any military lasers that can do physical damage to aircraft. The three main concerns and dangers to a pilot’s vision of pointing green laser pointers at aircraft is distraction, causing glare and temporary flash blindness. A fourth concern is eye damage but this is much less likely.

It is highly unlikely that any of these four dangers would result in a loss of aircraft or life. These dangers would only occur when a person deliberately points and tracks an aircraft with a green laser pointer. These dangers also only occur when an aircraft is taking of or landing and the aircraft is at a low enough altitude for a laser to strike the cockpit.

In summary

For the laser hobbyist who does not deliberately target an aircraft, green laser pointers are safe to use out doors at night. A good precaution when pointing lasers at the sky is to first check the sky to make sure it is free of aircraft and avoid using green laser pointers around airports.

For people thinking of pointing green laser pointers, it is Federal offence in the USA and rightly so. Lasers are very easy to track and offenders will face large fines and significant jail time. Pointing lasers at aircraft is also a serious criminal offence in most other countries.

Article is courtesy of Dragonlasers – No 1 lasers, laser pointer and green laser online store

About the Author

Frank is from Dragonlasers at http://www.dragonlasers.com

How do I power a laser diode taken from a laser pointer?

I have a laser diode from a laser pointer and I want to power it, but I have no clue how to do so. Can anyone help?

You need to know the required current and, depending on the circuitry you use, the required voltage.

You can use a transistor to give it the proper current, but this requires knowledge in electrical engineering. This method requires only the required current.

Otherwise, you can use a resistor to set the current with the diode’s voltage drop. This method required knowing both the voltage AND the current.

Search Google for sample schematics and the like.

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