This diploma thesis starts with the first chapter, which establishes an initial overview of all sections.
In the second chapter we overview the structure and function of a headlamp. We describe various light sources and electronic control networks in cars. Electronic control networks are essential to drive the headlamp and its electronic sub-assemblies.
The third chapter is devoted to particular sub-assemblies, which have an increasingly higher price share of the headlamp. We focus primarily on the printed circuit board with LEDs. Further reading of the chapter leads the reader to the basics of manufacturing, development and testing.
The description of printed circuit board production process techniques shows the reader how large series production of components with LEDs is at all possible.
The fourth chapter describes the environment and conditions for the final assembly of the lighting equipment. Principles of production technology for all components and modules of lighting equipment are based on similar thinking.
The last chapter presents the practical part, in which we describe the implementation of the new supervisory system for laser welding process monitoring for welding of optical lens on the module. We describe the appropriate methods of observation and a systematic approach to optimize the manufacturing process. A part of the chapter is devoted to the description of the observation methods, with which we can determine the quality of laser welding. Settings of the supervisory program parameters were done on an optimized process. This chapter presents the advantage of the implemented control mode, which does not affect the control current of the laser diode. With the generation of a repeatable control current pulse, it is possible to see the response of the system over and over again and then compare it with the desired response. It is also possible to set the corresponding temperature tolerance band.
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