Laser Beam Flashlight

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FAQ about Laser Beam Flashlight

What would happen to the eye if continuous light beam (flashlight/laser,etc) was shone in the eye for hours? you would have a terrible headache aswell as eye damage, i wouldn't be surprised if it blinded you!

When a narrow laser beam passes through a fine wire mesh before arriving at the wall, it forms a complicated.. When a narrow laser beam passes through a fine wire mesh before arriving at the wall, it forms a complicated pattern of bright spots on the wall. This pattern of spots would not occur if you sent a flashlight beam through the mesh because light from the flashlight (Select one) A) is horizontally polarized, while laser light is vertically polarized. B) is vertically polarized, while laser light is horizontally polarized. C) is not a single electromagnetic wave. D) cannot be sent through a single opening of the mesh. WHY? I don't udnerstand the question Actually U could use a flashlight, but U must pass the light first thru a very narrow mesh. And then, let it pass thru the fine wire.
That because U have to have a light bean with the width near the light wavelength.
In fact, a scientist that I forgot the name made some experiments on that long BEFORE the invention of laser or even the maser (laser of microwave, the first invented).
So, the closest answer to your question will be the
C) is not a single electromagnetic wave.
Althought, the laser it's NOT a SINGLE wave! It's just very, very narrow.

What the different between a laser beam and a flashlight? a laser beam is concentrated beam of light, and a flashlight defuses its light and spreads out more. layman terms.

how are a laser beam and a flashlight beam alike and different? cite source please laser beam emits a very narrow range of electromagnetic radiation while a flashlight emits a wide range of wavelenghts. for example a laser beam emits light at around and very close to 438 nano meters only while a white light will emit a wide variety of wavelengths. thats for the differences
well for the similarities u can talk about the properties of light i guess??? u could also say that a flashlight could emit the same wavelength as a laser but also different wavelengths than a laser.

Why does a flashlight beam diffuse over distance but a laser beam doesn't? A laser beam does diffuse over a distance.

I need to buy a really strong UV flashlight? I need to buy a really strong UV flashlight How would I go about doing this? I need to be able to clearly see the color of the security strip on a US bill during noon outside on a clear day. whats the STRONGEST most concentrated beam I can get that's not a laser beam?? Wow. I would suggest you figure out a different set of requirements. Seeing any fluorescence at noon on a clear day is going to be almost impossible. Think of it this way, if you can't see the strips using the UV that naturally comes from the sun, then you will need something that produces much more UV than the sun does. This would be extremely dangerous. It could give you sunburns or damage your vision easily.
From experience with UV lasers, I'm going to guess not only does your desired flashlight not exist, but it would be a terrible idea if it did.
Why not just bring a box that blocks sunlight, put the bill in the box, and use a normal UV source?

How do a LASER beam work? A regular flashlight emits light, but not as a laser does. The laser creates a "rod" of light. How do that work? laser is simply a beam of focused light that extends on for infinite distance if in a vaccum.

Why is light or a laser beam more visible at night than during the day? When you flash a flashlight during night you can see some of the dispersing light between the flashlight and the wall. However, this light can't be seen during the day. Why is that? What you're seeing is the reflection of the light off small particles in the air.
But there's not much of this light, because the particles don't scatter much. During the daytime, this small amount of light can't compete with the reflection off big objects that are reflecting a lot of light: your eyes simply won't be able to distinguish this "signal". But at night, there's no sunlight, so your eyes will not be "drowned" by the other stuff. (As a physical aspect of that: the iris of your eyes will be open wider.)

Can you make a larger beam for a laser pointer? I was wondering if they had a laser pointer type thing with a large beam. And if it was possible to make a laser with a beam the size of a large flashlight beam. If you wouldn't mind maybe showing a demo video of such a device (if they exist) that'd be a great help. Thanks for your time. Also, does it lose consistency or the distance it can travel if you make it bigger? A laser collimator is designed to do exactly this. It makes the beam larger, thus collimating it so that it increases in size slower. A refracting telescope or spotting scope acts as a collimator and shining the laser beam into the eyepiece will give the desired affect. Edmund Scientific used to sell small collimators specifically for lasers but they were quite pricy and I don't know if they still do. Try Googling "laser collimator".
P.S. Don't get it confused with the type of laser collimator that is used to calibrate the optical alignment of telescopes.

What is different between a laser beam and a flashlight? What is different between a laser beam and a flashlight? What are applications for laser light sources where regular light sources cannot be used? A flashlight will emit polychromatic and unphased, (incoherent), light.
(Many wavelengths and not 'in step')
A lase will emit monochromatic phased, (coherent), light.
(One, (or a very narrow band of), wavelength,
and all 'in step'.)
A laser can be focused much finer and can deliver
a very specific kind of energy to a small point.
The phased light is useful for ultra-fine distance measurement.
Reflected laser light retains its wavelength signature
and can be used for timed pulse distance measurement,
and doppler speed measurement.

Laser Beam Flashlight is from category: Flashlights.