In a lot of presentation work fields, including those of industrial and scientific experiment work fields, 460nm blue laser pointer always gets special use. Owing to its unique and charming blue laser light source emission, not as bright a formally used green laser, it has just attracted a lot of laser amateur and engineers.

Structure:
Laser generating module: A laser diode with a wavelength of 460nm is the core component for generating lasers of blue laser pointer. It emits blue laser light by combining electrons and holes through electrical injection. There is also a driving circuit to provide a stable electric current for the laser diode so as to ensure its normal operation in real blue laser beam and blue dot presentation works.

Optical focusing module: This 1mW, 5mW 460nm blue laser pointer is generally composed of a lens group, it focuses the divergent beam emitted by the 460nm blue laser diode into a parallel or small-angle divergent beam, so that the blue laser can propagate farther and maintain a certain spot size and energy density.

Power module: Usually a dry cell or a rechargeable lithium battery is used to provide power for the blue laser pen. There may also be a power management circuit to prevent overcharging, over-discharging, etc. Usually it enables long time lasting blue laser beam and blue spot emission within long lasting work time of 30 seconds per time, without any appearance of laser light decay or dim in proper use. In addition, owing to its basic aging preventing test and beam stability test up to 24 hours, this Class IIIa blue laser pointer always maintains ultra stable and bright laser light source projection as expected.

Control module: This 1mW, 5mW blue laser pointer gets a on/off switch in the tail part, after its easy press, it can make good control of laser lighting or stop. In addition, it is also designed with adjustable focus function, after easy roast of front head part, blue laser beam can be adjusted freely, thus it gets different dimension blue spot onto any targeting surface.

Tube design: It mainly adopts durable anodized aluminum alloy housing tube, composed of a thermal emitting part, which protects the internal components and facilitates holding. Some are also designed with a heat dissipation structure to ensure the stable operation of the laser pen.

Wide Applications of blue laser pointer:

Teaching demonstration: In school teaching, highly bright and charming blue laser beam can be used to indicate the content on the projection screen, blackboard so as to attract students' attention.
Conference explanation: In business meetings and other occasions, it helps speakers clearly indicate the content of presentations and enhances communication effects.
Astronomical observation: highly visible blue laser beam emitted via a Class IIIa blue laser pointer can point to the starry sky to help astronomy enthusiasts locate stars, constellations, etc.
Stage performance: attractive blue laser light source create dynamic lighting effects with music, etc. to enhance the visual impact of the stage.

Advantages and Disadvantages

Advantages: In terms of color, the 460nm blue laser pointer is blue-purple, with unique and eye-catching visual effects. In terms of energy, it is relatively high energy, and there is a clear blue laser light spot at a longer distance. It points accurately and can accurately indicate the target. The structure is simple, easy to operate and carry.
Disadvantages: Blue-purple light is very harmful to the human eye. If it is directly shot into the eyes, it may damage the retina, etc. The visibility of its beam is reduced under strong outdoor light. In addition, the battery life of the laser pen is limited and needs to be replaced or charged regularly. Whatever output power it is operating, it is a necessity to avoid eye exposure to beam aperture so as to assure its safe and clear use conveniently.

How to use blue laser pointer correctly?

When it is operating for any presentation occasion, users should only hold it firmly, avoid shaking, and press the switch with your thumb or index finger. Turn it off in time after use and store it properly.
Safety measures: It is strictly forbidden to shoot directly into other people's eyes, skins or faces, do not use it in prohibited areas such as airplanes and airports, do not disassemble it at will, and children need adult supervision when using it.