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Class I lasers are not harmful to the eye. Class II lasers are only harmful if the blink reflex is defeated. It doesn't make any difference what the visible color is. UV lasers can be dangerous at very low power output.
If your kid chases the light and runs into walls or falls off of long drops, you should avoid that.
What else can I help you with?
What color laser beam does a DVD drive use?
a red laser like a CD
What is the frequency of a red laser beam with a wavelength of 650 nm?
The frequency of a red laser beam with a wavelength of 650 nm can be calculated using the formula: frequency = speed of light / wavelength. The speed of light in a vacuum is approximately 3 x 10^8 m/s. Thus, the frequency of the red laser beam would be approximately 4.6 x 10^14 Hz.
Does red laser beam reflect off of glass?
Yes, red laser beams will reflect off glass, but the amount of reflection will depend on the angle of incidence, the quality of the glass, and the wavelength of the laser. Glass can absorb some of the light energy, so not all of the beam may be reflected.
What is the typical power of a green laser pointer in milliwatts?
A standard green laser pointer has a power of between 4 and 20 milliwatts. A red laser, for comparison, has a power of less than 5 milliwatts. The beam of a green laser can often be seen, while the beam of a red laser cannot be seen.
What are the uses for a CW laser?
A continuous-wave laser, or CW laser, is part of many items. A laser pointer's red beam is an example of a CW laser. CW lasers are also used in holography.
Who made laser beam first?
The first practical laser was developed by Theodore H. Maiman in 1960 at Hughes Research Laboratories. He used a synthetic ruby crystal to produce a red beam of light.
Who built the first LASER?
The first laser was built by Theodore H. Maiman in 1960 at Hughes Research Laboratories. The laser used a ruby crystal as the gain medium and produced a red laser beam.
What color is the laser beam in a DVD drive?
Red - its 650 nanometer wavelength puts it squarely in the middle of the visible light's red spectrum.
What was the cyclops power?
Cyclops could shoot a red laser beam out of his eyes. He also dated Jean Grey.
What is the difference between a red dot sight and a laser sight?
The difference is that red-dot sights have contained aiming reticles, whereas laser sights use an emitted laser beam that must fall onto a target. Red-dot sights are used mainly for more accurate ADS (aiming down sight) firing and laser sights allow for less-accurate, but made more so, shoulder-firing.
How do you detect a laser beam?
You can see light rays with dust, flour, etc. If you turn on a flashlight, you can drop dust right where the light travels to actually see that beam of light. The same thing happens with red laser beams.
What is the most common laser beam color?
There's not really any such thing. One common and therefore cheap type of laser diode emits a red light, as does the fairly common (or at least it used to be common; the diodes are so much cheaper I imagine they mostly use them now) laboratory helium-neon laser. So if I had to pick a single color that was "common" I'd say red. There are green and even blue laser diodes now, but they're more expensive than the red ones and therefore aren't as ubiquitous.
