How to choose the grade of laser pointer?
Class I: this laser does not cause any known degree of damage. If you want to use a 200mW laser pointer, there is no need to install any additional drives.
Category IA: This is a special class of laser because supermarkets use laser scanners that are "not suitable for direct viewing". The laser output of this class is capped at 0.4mW.
Class II: Point to a low power laser pointer in the visible spectrum, emitting a higher power level than mine, but emitting a power not exceeding 1mW. It protects people's reactions to bright light and automatically protects them from harm.
Class IIIA: refers to a low power laser (continuous wave: 1-5 mW) only inside the beam because it poses a hazard. Most of them are pen-shaped laser Pointers.
Class IIIB: refers to the general performance of laser. When giving gifts, a 100mW laser pointer is preferred.
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Today, today's lasers can be increased from less than 5 MW to 5000 MW or 5 watts. This means knowing where the combustion threshold is, usually at least 100 MW. This means that lasers below 100 MW will force everything to burn and will not be completely eliminated. All lasers above 100 MW are considered burners, but not all laser designators are created equal.
The higher the megawatt power, the more capable it is to burn, so if you can only black a balloon and light a match with 100 megawatts, you can't cut tape. Generally, it takes at least 200mW to light a match or balloon, but the higher the power, the better the burning power. All Class IV Rechargeable Laser Pointer exceed 500 mW and are best suited for combustion capacity. Class III applies only to the higher power spectrum (200mW to 499mW).
2021-11-04 08:40:38
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