Synopsys enhances luminaire design with LightTools 8.4 release

The Configuration Manager supports multiple design variations in a single LightTools model. The feature simplifies model maintenance and allows users to construct design variations quickly and efficiently. For example, users can set up multiple versions of a model using different light sources, geometric shapes, materials and optical properties, and then quickly analyse and compare the variations to evaluate the best design solution. The Configuration Manager also streamlines the creation of multiple designs to incorporate the versions of a product family that share a common design form.

"The Configuration Manager enables LightTools users to rapidly construct, simulate and compare various design directions," said George Bayz, Vice President and General Manager of Synopsys' Optical Solutions Group. "It is a powerful addition to LightTools' virtual prototyping capabilities that makes it easier for users to make timely design evaluations and adjustments, and get the best designs to market faster."

The hybrid ray tracing capability combines both forward and backward ray tracing into a single simulation to enable speed gains of 2 to 100 times or more, depending on the model configuration. Hybrid ray tracing is fully integrated into LightTools and supports the analysis of illuminance, intensity, spatial and angular luminance and colour. It is effective for luminaire designs with multiple scattering surfaces and smaller sources, such as digital projectors, medical optics and LED-based indoor and outdoor lighting systems. Hybrid ray tracing can show results in a fraction of the time needed using forward or backward methods alone, allowing the designer faster iterations and a shorter design time.

The Light Guide Designer provides tools to automate the construction, analysis and optimisation of light pipes and their extraction features to maximise light output. The Light Guide Designer simplifies the complex task of designing light guide systems with unique features including:

• Algorithms developed by Synopsys to rapidly optimise flux uniformity along the length of the light guide
• Automatic modification of texture shapes and lateral positions to optimise the output direction of light
• 3D analysis tools to visualise and evaluate both the flux and angular distribution of light

The Light Guide Designer is particularly useful for the design of light pipes used in automotive lighting, medical devices and architectural lighting.

The Street Lighting Utility provides a comprehensive set of tools to design, optimise and analyse luminaires for street lighting. LightTools 8.4 includes several enhancements to the Street Lighting Utility, including the ability to create fixture designs with bilaterally symmetric intensity distributions that maintain good luminance uniformity. This makes the fixtures more cost effective to manufacture and install. In addition, the utility now directly interacts with the LightTools Freeform Designer to support the development of freeform optical elements that meet the desired intensity pattern, giving designers more flexibility to meet system requirements and improve energy efficiency.