2 Introduction

The Ultrasonic Lens Cleaning (ULC) system is an electro-mechanical design to automatically detect and clean water, ice, or other contaminants from cover lenses in automotive, security, and industrial camera systems. The mechanical portion of the technology is called the Lens Cover System (LCS). Figure 2-1 illustrates the components of the ring piezo based LCS, which consists of a housing cap, flexible seal, thin film, lens, glue, ring transducer, and housing base. A transducer glued to the lens and the thin film makes up the Lens Cover. The Lens Cover is mounted inside a housing (cap + seal+ base) to create the LCS. Figure 2-2 presents the cross-section view of the LCS.

Simulating the LCS-FL-RNG15, with its various components, can be quite complex. A more manageable approach is to first simulate each individual component, and then bring everything together to model the final system.

For detailed drawing and dimensions of each component, please refer to Design, Fabrication, and Assembly Guide of Lens Cover System: LCS-FL-RNG15.

Figure 2-1 Illustration of Flat Lens Cover System (LCS)

Figure 2-2 The Cross-Section View of the LCS