How strong is a 1mW laser pointer?

Inhaltsverzeichnis:

1. How strong is a 1mW laser pointer?
2. What is a 1mW laser?
3. How far can a 1mW Green laser go?
4. Can you see a 1 mW laser?
5. Which is stronger 1mW or 5mW?
6. Can you look at a laser beam?
7. Why are green lasers better than red?
8. How far can a 5mW laser go?
9. What happens if you look directly at a laser?
10. What's better red laser or green?
11. Why is green laser more expensive than red?
12. How far do laser pens go?

How strong is a 1mW laser pointer?

8 Answers. Dear Thomas, the diameter of the beams of these HeNe lasers is between 0.5 and 1 millimeter, so the power 1 mW is coming to 10−6 squared meters or so. The ratio of power and area is 10−3/10−6=10+3 Watts per squared meter.

What is a 1mW laser?

Class 2 lasers are low power (< 1mW), visible light lasers that could possibly cause damage to a person's eyes. Some examples of Class 2 laser use are: classroom demonstrations, laser pointers, aiming devices, and range finding equipment.

How far can a 1mW Green laser go?

Output power ( mw ) – A 200mW laser will be visible for more than 1 miles while a 1000mW laser pointer or more will also be visible for 10 miles. Wavelength ( nm ) – A green laser pointer is more visable than a red laser pointer .

Can you see a 1 mW laser?

For a list of other laser sights, see Laser. The 1mW Laser is an attachment featured in Call of Duty: Modern Warfare. ... Unlike the 5mW Laser and Tac Laser, the 1mW Laser beam is not visible to other players.

Which is stronger 1mW or 5mW?

MSM: The main difference between the 1mW and 5mW move shoot move lasers is their output power, as you could see from their names. ... So the advantage of the 5mW version is: its beam is stronger than the 1mW version's.

Can you look at a laser beam?

It is also perfectly safe to look at the beam indirectly (such as using mist or smoke to illuminate the beam path). Protective goggles are a recommendation when there's a chance of directly viewing the beam (that is, putting your eye right along the path of it). Class 4 lasers are the most dangerous.

Why are green lasers better than red?

Our eyes' sensitivity peaks at around the wavelength of green light. ... Green light also scatters more in the atmosphere than red light does, which is why amateur astronomers often use green laser pens to point to features like planets or constellations in the night sky.

How far can a 5mW laser go?

In order to equal the sun's output in W/m^2, the light of the laser pointer would need to be spread out into a spot diameter of 6.8 cm, and with the given beam divergence, the beam spot will have this size ~28 meters (92 ft) from the waist. The waist might be one or several meters in front of the laser output.

What happens if you look directly at a laser?

By the way, you shouldn't force a stare at a laser, just like you shouldn't stare at the sun or any bright light source. Possible more potentially damaging -- although not to the eye -- is that a regular pointer laser can overwhelm the eye with light, typically called flash blindness.

What's better red laser or green?

The human eye is better able to recognize colors in the green spectrum, so a green laser is more visible under bright light conditions. ... If you want a smaller, lighter, cheaper laser, red is best. If you want a laser that is more visible under a wide variety of lighting conditions, you'll need a green laser.

Why is green laser more expensive than red?

Green lasers are much more efficient and visible in areas of broad daylight and direct sunlight. ... Bear in mind, though that green lasers are typically higher in cost than red. This is because they have more components and better laser diodes than red.

How far do laser pens go?

Around 100 meters away from a red laser pointer, its beam is about 100 times wider and looks as bright as a 100-watt light bulb from 3 feet away. Viewed from an airplane 40,000 feet in the air -- assuming there's no clouds or smog -- the pointer would be as bright as a quarter moon.