Recently liquid-crystal display (LCD) has the highest output value and most popular usage of flat panel display in monitor. The advantage of LCD is low electric quantity consumption, light quantity and thin thickness. LCD has substituted for the traditional screen monitor. The back light module, color filter and actuation IC are three major cost structures in LCD. The optical film is the most used structure in back light module, which is used to increase brightness, luminate evenly the panel and prove illuminant efficiency. The liquid crystal does not irradiate, therefore, the back light module is accessory of liquid crystal display, especially the LCD has advanced the size over 60 inches dimensions. When the panel enhances its size, the cost of back light module correspondently increase, even achieve to 50%. The importance of back light module in LCD can be understood. This study is to develop an innovation of gapless compound polygonal micro-lens. The manufacturing process includes lithography, reflow, electroforming and hot embossing technologies. Also the TracePro software is applied to facilitate the design. LED is used as the illuminant without diaphragm simulation. It enables the optical film to achieve an optimum condition. Using the gap optical film, we need to apply 3~4 pieces in the back light module. When we use the gapless optical film to make film to increase largely the light efficiency, we expect to use 1~2 pieces in the back light module. In this case it can reduce the cost and promote the competition of the domestic manufacturer.

This diploma thesis deals with the design of a virtual prototype of a luminaire. Using suitable software tools, a luminaire optics is created and optimised. Luminaire is simulated in the interior, and lighting parameters are evaluated. Finally a suitable design is created.

This thesis deals with design of optical system for road lighting luminaire. In the beginning the basic photometric quantities and assessment methodology for requirements of lighting class M are described. The next step is the programming of algorithm which evaluates the road lighting requirements using few boundary conditions. The input of the algorithm is also luminous intensity (power emitted in a particular direction). By the turning the algorithm over, it is possible to evaluate the luminous intensity from the road lighting requirements. Those luminous intensities are used in the process of modification of optical lens. The ray tracing of modified models of lenses was performed to obtain the tables of luminous intensity. The values of luminous intensity are verified in the same algorithm. Finally, the comparison of results was made including several luminaires out there.