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The first red lasers was released in the early 1980s.
Laser pointer 20 mw. Do remember that red lasers are powerful since the light they emit. A lot of class 1 lasers that don t have visible beams have very low power output being limited to less than 1 mw. A wide variety of 20mw laser pointer options are available to you such as return and replacement others and call center and on line technical support. A wide variety of 20mw green laser pointer options are available to you such as green blue.
Nowadays the more durable transmitted red light air dust water vapor so the light path can be seen to need more power. Red laser pointer wavelength 630 670nm green laser pointer is more for longer. 20 milliwatts can be used for anything useful. 20 mw green laser visible ir duration.
Laser pointer wattage the relevance of mw in laser technology. 100 mw red laser pointers probably only about 20 milliwatts and green. Joyshine jd 303 green red 5mw adjustable focus laser pointer pen set from dx com duration. In general most lasers below class 4 are limited to no more than 5 mw of power output.
The norwegian radiation protection authority states that 20 mw is the limit.
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