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Many types of low profile headlamps have been developed to meet the great demand to improve both aerodynamics and styling. However, none have resolved the principal subject, “the compatibility of light-efficiency and styling”. Our innovative development is the super -low profile headlamp system, which contains totally unique reflectors. The special combination of reflectors is designed to generate beam pattern. To achieve this innovation, the precise light control technology and the research for optimal headlamp beam pattern were essential. The head-lamp performance was examined by our original computer simulation system. As a result, this headlamp is only 30mm high and it has extremely high light efficiency. It also provides excellent headlamp performance, in regards to the bright foreground illumination, long distance visibility and accurate glare control.

There are many methods to create images in computer graphics. The optical path tracking methods, represented by the ray tracing method, are most frequently used in recent years. One of the problems of these methods as a &sign supporting system, is a huge amount of time required in image creation. There are many optical paths which are used to indicate lamp lighting conditions. Rays of light which from the way of lighting specific to a lamp can be classified into several types. It is possible to rationally obtain those optical paths that must be calculated by using an optical path tracking method which is matched to the classified light. Optical path calculation can be drastically simplified if the reflecting object and transmit object, illuminated by a light source, are assumed to be “quasi-light sources” that have the relevant information.

Along with the tendency to esteem fuel economy, driving security and aerodynamic excellence, the voice to demand technical improvement of headlamps is getting higher and higher every day. With the expectation to meet such common and strong demand of world's automotive industry, retractable headlamps and slanting headlamps (headlamps of which front lenses are slanted) have been put to practical use so far. However, retractable headlamps have a disadvantage that once lighted, they lose their aerodynamic efficacy. Moreover, the mechanism of retractable headlamp system is rather complicated and causes cost increase. On the other hand, in slanting headlamps, light emission inefficiency that increases in proportion to the lens slant angle settles certain limitation on the popularity of this system.