Laser pointers with 405 nanometers wavelength of light are also called blue violet laser pointers. Although it is rarely prefered to the green and red ones, it could be used for what others do, which also reflects the individual unique aesthetic taste. It is probably not as much preferred lasers as an astronomy laser pointer, because brighter colors would make an object more visible in the sky. However it comes down to all other uses such as pinpointing something on the large screen or on the blackboard.
Green laser pointers is now the world's most popular laser pointers, because the green light than red light 6 times more than red light beam significantly, while the price is much cheaper than the blue and yellow. Green pen is the wavelength of light emitted 500-550nm, the wavelength sensitivity of the coefficient table, as is the closest one wavelength. Green is undoubtedly efficient light source, the eye more easily identified. The green light sensitivity of the human eye is higher than a lot of red; the other is green light scattering in the atmosphere more than red light.
Red laser pointers, wavelength 630-670nm green laser pointer is more for longer. The first red pointer was released in the early 1980s. Nowadays, the red laser diode technology has been very mature. More durable, the price is much more cheaper than ever. More easily transmitted red light air, dust, water vapor, so the light path can be seen to need more power. 100 mW red laser pointers probably only about 20 milliwatts, and green. Do remember that red laser pointers are powerful since the light they emit is powerful when it hits a certain object and converges into a point.
Place to note
Now, more and more laser pointers and flashlights sold in the market are class IIIB with a power over 5mW. But when the laser directly penetrates into the eyes, there may be some damage. Especially to some high power laser pointers, diffuse light probably damage the eyes, the focus are more likely to ignite flammable materials. Therefore laser pointers are not a toy, not suitable for children. When operating high-power laser, wear special secure glasses would be safe, especially for the invisible laser. In a word, no matter how much power the laser power is, you need to avoid hitting into your eyes.
5mW Gypsophila Light Pattern Professional Green Laser Pointer Blue
Laser pointer is a pen style emitter designed for the purpose of sending out visible laser. Fine craftsmanship makes it smooth to hold. This professional laser pen is easy to operate. There is a switch installed in the middle of the pointer. Just gently press the switch button; you will notice a beam of strong green light sending out from the laser pen. The highlight of this laser pointer lies in the light pattern it possesses. Creating a gypsophila pattern provides you with a sense of roman. Except that, laser point has wide applications, such as tourism, mine stope, exploration and so on. Most of all, this product contains a single laser pen only, without any battery or charger. You'd buy additional accessory to make it function. Good choice for you!
Made of high quality stainless steel, it is durable for long - term use
Gypsophila light type makes it distinct from others
With 300 - 500m laser range, it can offer a wide and clean view from the far
Switch location is installed in the middle of the pointer, easy to press
Perfect for teachers, professors, doctors, managers, engineers and so on
The laser can be seem as far as the eye can see
Simply press the button to activate the green laser pointer and release it to deactivate
It's more convenience that use laser point to the target instead of hands
300 - 500m
2 x AAA Battery (not included)
0.92 oz / 26 g
6.22 x 0.51" / 15.8 x 1.3 cm (L x Dia)
It looks like a pen
Insert the batteries from here
The push button switch is here
You can use the laser pointer pen to play with your pets (the picture is just the example for your reference)
The "picture show" is only for your reference, please make the object as the standard.
1 x Laser Pointer
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