General thoughts on laser applications

It was a long way from the invention of the laser effect to the application of laser radiation. Of course, there was no talk of laser safety glasses, laser safety windows, etc. at the beginning. This development took place at different speeds in the individual industries. At the beginning there was one thing in common in all industries: Whenever a new beam source was invented, the ideas for its application shot up like mushrooms. Back then, rarely did anyone go the other way around, first describing the application-related problem and then looking for a solution, possibly based on a laser. Whether in industrial production or in medicine, some applications only survived for a short time due to their novelty value, some were too expensive compared to conventional methods, but some were also real hits. Gradually it became clear at least when laser methods offer application-technical advantages:

• Processing of filigree structures
• Minimization of heat affected zones
• Generation of very high and locally limited power densities
• Use of wavelength-dependent effects

At the beginning of the 1980s, there was still a joke in sales circles that you had to sell a physicist for every laser system. Another view was that lasers were the most expensive way to generate light. In the meantime, however, the situation has largely normalized. Today, laser protection is accordingly well positioned and tailored to the application, in that laser protection glasses must be certified by a notified body and laser protection windows undergo at least one test procedure.

Perhaps the century of the photon is only just beginning now ...

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Laser application, Heat influence zones, Power densities, Laser system, Sales Circles

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