What about a laser pointer with constant power?
Constant power blue high powered laser Pointers are commonly used in demonstrations under various conditions, but it has long been argued that laser diodes burn out easily. This can be very annoying for laser users when laser diodes burn out. Duration The duration of output power is less than 30 seconds. Otherwise, the rising temperature will burn out the laser diode. Whether in entertainment or practical use in daily life, should always pay attention to the best lighting time should be less than 30 seconds, in order to prevent laser diode combustion.
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Blue lasers can also be made directly using InGaN semiconductors, which can produce blue light without doubling the frequency. 450 nm (447 nm plus/minus 5 nm) blue laser diodes are still available on the open market. Some blue diodes can provide very high power. Like the NichiaNDB7K75 diode, it consistently outputs more than 5 watts of power when overloaded. These devices are brighter than 405 nm purple laser diodes with the same output. This is because the longer the wavelength, the closer it is to the maximum sensitivity of the human eye. Mass production of laser diodes, used in commercial equipment such as laser projectors, depends on price. High-performance versions of the 447 nm pointer are very popular now, reducing collimation and divergence for better optics.
2021-11-03 09:46:23
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