With warmer weather in the northern hemisphere, many technology and astronomical fans are getting ready to go outside and increase their collection of laser pointers for astronomical stars. If you are new to lasers or just want to buy an ideal laser for use at night, it is important to know some things about hand technology and what to look for.
1. Laser Beam Color (Frequency) – The laser produces a solid beam of light in different colors (frequency) which determines how the human eye sees color when the diode is stimulated and active. The most common and visible color of the laser beam is 532nm green because it looks brightest in the human eye based on the visible light spectrum that extends from infrared light to ultra violet light and everything in between. A green laser pointer will provide the most visible effect for any astronomy enthusiast to stare at stars with, but colors like red, blue, yellow, and even purple can also provide a lot of diversity and offer some tempting visuals too.
2. Laser Output Power (mW) – Each laser pointer produces a certain amount of power which will ultimately determine how bright or strong the beam itself will appear when activated. The smaller the power the less light will appear, while thus, the stronger the laser beam the brighter the light will appear, regardless of the color. A green pointer produces an average of 5mW of thick light but not everything that is seen at night, if you want to be able to see the entire beam you want is about 20mW or higher, and if you want a burning laser you will need around 100mW or more.
3. Price and Quality – This is probably one of the most important parts for any purchase, but like all new and sophisticated technology items, one model can be very different from the other. This is where a little research will really go a long way to making sure you buy a laser that is worth your time and effort. Take a minute and look for the right model specifications, review if there are any, and video users who actually enjoy the laser. Because cheap lasers can be really just, cheap or not well designed, the price point needs to be carefully scrutinized, like most things you get from what you pay for.
All in all you can increase star night staring with high quality astronomical laser pointers, but it’s important to make sure that every cheap pointer that you buy meets certain quality standards and really is what you are looking for. Color, power output, and price points must be a major factor in your decision, while style and portability can be secondary because most diodes are portable and even have a good ‘technology’ appearance these days.