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Imagine stepping into a luxury vehicle where the interior lighting seamlessly enhances the ambiance, creating a sophisticated and inviting atmosphere. Achieving such an effect requires precision and innovation in design. The application of automotive interior lighting systems in luxury vehicles has become increasingly popular. These systems often require light guides to create uniform illuminance and ambiance within the vehicle.

Setting Clear Design Objectives

The primary goal is to design an interior lighting system using ambient lighting. The light guide should provide uniform illumination without being directly observed. We will use an existing vehicle model for simplicity, aiming for uniform illuminance and a uniform visual appearance of the lit section.

Key Objectives:

• Design and optimize light guide for uniform illuminance
• Conduct luminance simulation to evaluate visual appearance
• No specific regulation requirements

For this project, we will use the door pocket in the Audi R8 model. The light guide will be constructed to avoid interference with the existing model.

Bringing Designs to Life with the Visualization Module

The Visualization Module in LucidShape CAA provides tools for realistic renderings of designs, both lit and unlit. It uses environment sources, backward simulations, and the HEVI (Human Eye Vision Image) tool to generate accurate visualizations based on physically correct inputs.

Light Guide Design Module Introduction

The Light Guide Design Module in LucidShape CAA enables the creation and optimization of light guide systems for spatial uniformity of flux extraction and angular centroid pointing direction. Utilizing CATIA geometry, the module allows for the design of light guides, addition of prism extractors, sensors, sources, and other necessary components.

The Design Flow in LucidShape CAA V5 Based

The design flow involves several key steps, starting with the creation of light guide geometry. This includes defining the path curve, cross section, and guide surface, followed by the addition of prisms. Using the Light Guide Designer module, we can easily and quickly optimize the light guide. Once the light guide is modeled, the next step is to set up the visualization, including the luminance camera and environmental light source. Simulations are then run to evaluate the design vis-¨¤-vis the lit appearance, and tone mapping is applied to enhance the visual results.

Through these iterative steps, the design can be refined and optimized to meet the desired performance standards. By utilizing Product Level simulations, the optimization and evaluation of the light guide vis-¨¤-vis the lit appearance can be done seamlessly. 

Enhancing Visuals with Tone Mapping

Tone mapping is essential in visualizing the final design. By combining the luminance images, we can create photorealistic evaluations of the interior lighting setup under different brightness conditions. Advanced Analysis tools in LucidShape CAA V5 Based allow for detailed analysis and fine-tuning of the tone mapping process within a comprehensive interface.

Conclusion: Bringing It All Together

In conclusion, we have demonstrated a comprehensive design process for creating, assessing, and visualizing an interior lighting setup using LucidShape CAA V5 Based. The Light Guide Design module facilitates easy customization and quick optimization of the light guide, while the Visualization module generates luminance results.  Advanced Analysis is useful for combining luminance results to create photorealistic scenes and for analysis.

Further iterations and refinements can enhance the design, ensuring optimal performance and visual appeal.

For a detailed walkthrough and to see the entire process in action, be sure to view the full tech talk video. It provides an in-depth look at each step and offers additional insights into optimizing automotive interior lighting designs.