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Prix lampe torche laser

Are the green laser pointers suitable as children's toys? Under no circumstances should children handle these lasers, they are not toys and can be dangerous since they are extremely high power. DANGER: Laser Radiation. Never look directly into the laser beam. Never point a laser beam at a person. Do not aim the laser at reflective surfaces. Do not allow children to use laser pointers unless under the supervision of an adult. http://www.puissantlaser.com/c-1/p-1049.html

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Posted on Jan 02, 2017

webslinger32
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SOURCE: How can I choose for 2 Laser Pointers ?

The green is the beter choice its much brighter and easy to see for presentations

Posted on Dec 03, 2014

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High Power Laser Pointer will damage my camera ?


The light from my laser pointer on a screen will not damage the camera a direct shine into the lens of the camera may well burn the electric of the eye out the camera may not be able to handle the intense light and it may bring out the circuits.

Nov 25, 2014 | Logitech 2.4 ghz cordless presenter

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Handheld Laser Pointer "Toys" Can Cause Serious Eye Injury


Handheld Laser Pointer "Toys" Can Cause Serious Eye Injury

A 15-year old boy ordered a handheld burning laser pointers online. He wanted it to pop balloons from a distance and play around with, this included burning holes into paper cards and his sister's shoes. Doctors from Lucerne Cantonal Hospital, Lucerne, Switzerland continue explaining in a letter published in the New England Journal of Medicine (NEJM) what happened when he used the laser pointer in front of a mirror.
http://www.lasereshop.com/images/p/hq01gn01651%20(3).jpg
The teenager wanted to create a "laser show" - he faced the mirror and zapped cheap high powered laser pointer beams in several directions. Some of the beams hit his eyes and his vision in both eyes blurred immediately. He did not tell his parents for fear of being told off or perhaps causing unnecessary alarm, and hoped the vision problems would go away.
http://www.lasereshop.com/images/water/hq01gn0096-200mw-13.jpg
Two weeks passed and his eyesight problems continued. The boy went to see a health care professional.
The ophthalmic assessment revealed that his eyesight had deteriorated so badly in his left eye that he could only count fingers on a hand at a distance of no more than 3 feet (about 1 meter); his right eye had 20/50 acuity.
An examination of the interior of the eye with an ophthalmoscope detected a dense subretinal hemorrhage in his left macula, there were also several "tiny round scars in the pigment epithelium of the foveolar region of his right eye". The clinician diagnosed bilateral retinal laser injury - injury to both eyes caused by laser beams.
Four months later the boy's eyesight improved, but there were still some problems and scarring.
Laser pointer 1000mw that were sold to the public used to have a maximum power of 5mW, which is not considered harmful for human eyesight. The handheld laser device the boy purchased on the internet was 150mW; 75 times more powerful.
http://www.lasereshop.com/images/p/1000mw-green-laser-pointer-hq010032-61946852s.jpg
Lasers which are powerful enough to damage human eyesight are generally used only by military personnel, and in such cases accidents and injuries are extremely uncommon.
Laser devices with a potential of up to 700 mW can be bought by anyone on the internet, the Swiss doctors inform. There are government restrictions, but this does not seem to stop these products being available online - they are presented as " green laser pointers ", like the ones lecturers use, and many look just like them.
http://www.lasereshop.com/images/p/hq01000301-05.jpg
These extremely powerful devices can cause serious and immediate eye injury. They are advertised as toys, even though they can cause blindness. Teenagers find them fascinating. There are even laser swords and other fun toys with powerful lasers installed inside them.
How is a child who is using one of these devices, and the other kids around him supposed to tell a harmless laser pointer from a dangerous one?the conclude that if the present state of affairs continues, there will be more such eye injurie.

on May 05, 2016 | Office Equipment & Supplies

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About Laserpointer


Green laser pointers are fully legal for laser pointer use in most countries and at just below the maximum allowable legal power limit of 5mw for a pointer in most countries. 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.
This high power green laser pointer will impress your coworkers, family and friends. Use it for your next presentation and everybody will know that you are ahead of the latest technology.
METAL BODY

This high power green laser pointer features a top precision all-metal body. Don't be fooled, some green laser pointers have a plastic body that is metalized. Our all-metal body green laser pointer is therefore robust and durable.

HIGH-QUALITY OPTICS

Our high power green laser pointer features an all-glass lens that focuses the beam to a sharper, rounder, clearer dot.

BRILLIANTLY BRIGHT

Powered by a Sony diode with a lifetime of 3000-5000 hours, it projects a high power green dot up to an incredible 2 miles away. And it so powerful that the beam itself can be seen for several hundred feet in darkness. That's why astronomers use it to point out constellations and stars in the night sky, the US Army uses it for training exercises, and executives at all levels use it to enhance their prestige. It's a very important tool if you get lost while hiking.


http://www.onlinelaserjp.com/green-laser.html

on Feb 02, 2015 | Hama Laserpointer Lp-8 4In1

2 Answers

Are there laser pointers with different colors?


I know there are laser pointers in Red, Blue and Green but maybe thre are other colors as well. Check: http://www.laserpointerpro.com/attribute/color_red-laser-pointers_17

Jan 24, 2013 | Office Equipment & Supplies

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Laserpointer 3000mw


3000mw this laser pointer green wavelength 532 nm, with a particularly strong green light (650 nm 405 nm for red and blue). Wavelength is the human eye. Operation 3000 MW Green laser with high capacity 18650 battery life even longer.
In addition, you can remove the extension rings, transported to a laser with a smaller 16340 battery, you can run on our site. Beam power, maximize the use of batteries or fully charged batteries.
This Green laser 3000mw especially overwhelming: where beams of concentrated attention, it has a button to make it clearer and more efficient, it also closes the input the security key-this is a significant force. Of contact does not interfere with the child or a person of control measures, the security system is an important criterion.
This Green laser pointer is a very powerful, beautiful laser 3000mw facilities, more akin to a laser pointer as a light! This is one of our most powerful Green laser pointer laser. Additional recommendations are ideal for astronomy use light, visible light, especially light during the night. Its beam from a few things when the brightness is reduced, and watch the sky. In the range of approximately 5 km.

on Jul 25, 2014 | Office Equipment & Supplies

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Safety first when using a laser pointer


Although a laser pointer may not look it, they can be very dangerous. While they can be a very effective tool for drawing your audience's attention to things in your presentations, using them for other purposes can cause a lot of damage. Following a few simple safety tips will ensure that no one will get hurt while you're presenting.

- Never point your laser pointer at an other person, especially not the face. Just because a laser pointer may not be dangerous when pointed at the skin of another person it is still a good practice to never use it to point at people.

- Never look directly into the laser beam, even if you are sure that the strength of the laser is not high. Even a low powered beam can cause some damage to the eyes. Eye damage can be permanent so it shouldn't be treated lightly.

- Check for reflective surfaces before you present with a laser pointer. If the beam is reflected off an other surface such as a mirror or glass can be just as dangerous as pointing it directly into some one's eyes.

- There is something about a laser pointer that makes people act like children. I have been in many college lectures where a lecturer will use a laser pointer to make emphasis in class and students will ask to play with the pointer. Under no circumstance should you allow someone else to use your laser pointer, especially in a classroom full of people.

If you feel uneasy about using a laser pointer in your presentation you might want to look into using your computer mouse as a laser pointer. Microsoft powerpoint has a feature that will allow you to use the mouse pointer as a laser pointer on the screen. That by far will be the safest laser pointer.

on Jan 29, 2014 | Office Equipment & Supplies

2 Answers

My frient told me that laser pointers are great harmful to us. i doubt it. is it seriously? why?


just ok.

you are not use it all the time. and you can buy a good one which has less harm. i also have one, and it is just good,
i buy a green laser pointers here http://www.gadgettown.com/Green-Laser-Pointers/

Dec 07, 2010 | Computers & Internet

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