How to choose a laser pointer
1. Check the color and characteristics of the light
The wavelength of the green laser pointer is 532nm, which is close to the wavelength that the human eye can feel the brightest. It has the advantage of being 8 times brighter than a red laser pointer and the light can reach farther, but on the other hand, there are many products that are expensive overall. However, when you actually compare it, the green laser pointer is clearly brighter and can be seen clearly, so if you use it in a large place such as a hall or a large conference room, you should choose a green laser pointer.
If you use a laser pointer with a blue light that is rarely used, you can easily leave an impression on your audience and clients, and you can differentiate yourself from other presenters. A clean blue light will attract attention and will be an advantage for a successful presentation. There are some laser pointers that are not a beautiful blue color, but are labeled as blue laser pointers even though they have a color close to purple, and there are also illegal laser pointers, so the point is to choose a blue laser pointer with the "PSC mark". The price is also more expensive than the red and green types.
2. Check irradiation distance
We have seen the characteristics of the color of the laser pointer, but what is the specific distance that it can be irradiated? Let's check each one. The longest is green, about 200m, then red, about 100m, and the last is blue, about 50m. Green is for large venues and red is for smaller venues.
3. Check the distance that radio waves reach
The presenter model and wireless mouse model are convenient for operating slides, but what I would like to pay attention to is the operable range from a PC. Most products operate with radio waves via a USB receiver inserted into a PC, but the distance that radio waves reach varies from 15m to 30m, depending on the product. Normally, 15m is enough, but if you have the opportunity to give a presentation away from your PC, it would be safer to choose something that can be used from as far away as possible.
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