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Ansys Speos
Design & Validation of Optical Systems

Ansys Speos predicts the illumination and optical performance of systems to save on prototyping time and costs while improving your product’s efficiency.


Ansys Speos Helps You See Optical Simulation in a New Light!

Ansys Speos delivers an intuitive and comprehensive user interface, enhanced productivity with use of GPUs for simulation previews and easy access to the Ansys multiphysics ecosystem.

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    Simulate Sensor Vision
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    Advanced Optical Analysis
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    Optical Design Optimization
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    Human Vision

Quick Specs

Speos has been assessed by the International Commission on Illumination (CIE) against CIE 171:2006 test cases, assessing the accuracy of light modeling software and showing the performance benefits of Ansys Speos.

  • Connection with Multiphysics Simulations
  • CAD Connection
  • Visibility and Legibility
  • Ansys Cloud Integration
  • Speos Live Preview
  • Virtual Reality
  • Custom Materials Library
  • Robust Design Optimization for Optical Design
  • Illuminance, Luminance and Intensity
  • Human Vision
  • Speos Lens System


What's New

The new release of Ansys Speos delivers powerful capabilities that speed time to result, improve simulation accuracy, and expand interoperability with other Ansys products.

Faster Simulations
Faster Simulations with GPU Compute

With GPU Compute, Speos delivers dramatic improvements to simulation performance (140 – 260x faster benchmarks on average) with no loss in accuracy and unprecedented performance to cost ratio.

Dynamic Effects in Camera Simulation
Dynamic Effects in Camera Simulation

A new feature to address the increasing need for scene dynamics in the context of camera simulations and the modeling of the complete acquisition chain.

New post-processing to better model dynamic scene effects such as roller shutter and motion blur.

Speos Lightfield
Speos Lightfield® – Improved Performance & IP Protection

Ansys Lightfield® is a new file format that helps to facilitate the storage and sharing of pre-computed results for sub-structures within an optical system. 

Improves simulation time and allows for black-box sharing including geometry and light distribution between suppliers and their customers for improved performance and IP protection.  

Enhanced Productivity
Enhanced Productivity

Speos Parameter Manager offers an expanded set of parameters to enable the optimization of a broader set of Speos designs including light guides and projects lenses.  

Speos Preset Manager allows you to create or apply presets through a simple drag & drop that contains all the parameters of Speos objects.

Surface Property Plugin
Surface Property Plugin

Surface property plug-in capabilities allow for custom surface optical models written in C++ or Python. New models allow you to use third-party material descriptions and descriptions from other Ansys tools such as Lumerical FDTD.

Non-homogeneous materials
Non-homogeneous materials

Graded material models help you to capture the effects of non-homogeneity on refractive index and absorption.

Speos now models aero-optical phenomenon to account for the aberration effects of compressible turbulent flows near the projection or viewing optical aperture.

Ansys Cloud Improvements
Ansys Cloud Improvements

New support for flexible queues to easily adjust the number of cores available for Speos simulation. New HBv3 queues also help you to simulate faster.  

Automatically downloads your results when Ansys Cloud simulations are complete.

Optical Part Design
Optical Part Design

New features for optical part design to improve simulation accuracy, usability, and control:

  • Better control of spread on TIR lenses
  • New freeform lenses
  • New type of lightguide with micro-optical stripes to improve thick-lit appearance
  • OPD enhancements (multi-facets support, grid enhancement visualization and better integration in Speos for NX) 

Mazda Sees the Light with Ansys Speos

A new generation of MAZDA3 uses Speos 3D optical analysis for development of interiors and lights.

Ansys SPEOS Mazda

It was always difficult to verbally explain how much more the vehicle can improve but visualizing it with Ansys Speos easily convinces the designer.

The making of the all-new MAZDA3 required a fresh way to judge illumination recommendations and perform analysis. This involved evaluating actual light illumination early in the development cycle, leading Mazda to Ansys Speos. With Speos, Mazda reduced, on average, the number of $95,000 vehicle prototypes per project by three, all while finding a more optimal interior design. 

The Speos solution helped Mazda accurately analyze — in a single simulation — light amount and wavelength, accurately analyze reflective properties and reproduce and quantify luminance distribution in two dimensions, allowing Mazda to perform simulations without sacrificing accuracy. By incorporating Speos, Mazda has a better end product and is more involved in detailed design choices earlier in the process. Mazda engineers can optimize features for mass production, saving time and money, and can work with suppliers via Speos simulations to determine exact specifications for a more efficient development process.


View all Applications
Car exterior simulation

Autonomous Sensor Development

Ansys provides a comprehensive autonomous vehicle sensor simulation capability that includes lidar, radar and camera design and development.

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Vehicle Interior

Learn how Ansys simulation enables the optimization of vehicle interior design, from comfort and noise to the human machine interface.

Car exterior simulation

Vehicle Exterior

Ansys simulation enables you to optimize automotive exteriors by lowering drag, reducing weight and improving fuel efficiency and range.

Autonomous vehicle simulation


Design, Optimize and Validate Your Optical System

Turn on the light in your virtual model and intuitively explore the propagation of light in 3D. The Speos Live preview function features simulation and rendering capabilities so you can design products interactively. Cut iteration time and speed up your decision-making process by performing simulations correctly the first time, automatically designing for optical surfaces, light guides and optical lenses. To match your performance specifications, Speos combines powerful light analysis capabilities with illumination evaluation across the electromagnetic spectrum, allowing for high-fidelity visualization based on human vision capabilities. Deploy these visualizations in virtual reality for a fully immersive review experience.



Ansys Speos optical design software uniquely simulates a system’s optical performance and evaluates the final illumination effect, based on human vision.

  • Lighting System Modeler
  • Lighting System Analyzer
  • Human Vision
  • Speos Live Preview
  • Robust Design Optimization for Optical Design
  • Optical Part Design
  • Optical Sensor Test
  • Speos Lens System
  • HUD Design and Analysis
  • Far Infrared Extension
  • Ansys Cloud
  • Ansys Speos HPC
  • Road Library for Sensors Simulation
  • Extensive Optical Library

Get an in-depth understanding of how light works in your systems by modeling, simulating and optimizing the luminous flux in any future system or product. You can now accurately predict stray light, hot spots and uniformity to ensure your system’s performance, evaluate illuminance and luminous intensity in the visible light range. 

Simply perform physically correct colorimetry and photometry measurements and studies to validate your choice of materials and light sources, ensuring your system matches design requirements. You can also check the compliance of your systems with industry or legal standards with a click. 

Simulate visual predictions based on physiological human vision modeling, improve visual perceived quality by optimizing colors, contrasts, harmony, light uniformity and intensity, and take into account ambient lighting conditions, including day and night vision. Speos gives you 3D virtual reality models for a fully immersive experience.

With Speos Live preview’s simulation and rendering capabilities, engineers can design products interactively — further speeding up development.

The optical design optimizer helps you to easily bridge the gap between optics and CAD so you can create any type of optical component, including lighting system lamps, switches, displays and luminaries; then use them directly in your CAD software. Assess the optical performance of your system and benefit from integrated tools for the optimization of your optomechanical system. You can also process tolerance studies to elevate the performance of your systems.  

Use these for a light guide or pillow optics for reflective and refractive parts. Design the best beam sharp cutoff reflector shape and model manufacturing constraints like drafting and milling. Optical part design delivers unique geometrical modelling capabilities so you can automatically create geometries with several dozen construction elements in just one click. The software also allows you to build a surface to collimate light rays that are impossible to create without approximations. Optical part design will increase your productivity and shorten your engineering development time, all while accelerating convergence on style. 

The optical sensor test provides a built-in environment for easily evaluating the impact of the different design versions on the sensor perception, all at an early design stage. Starting from a digital mock-up—including surrounding geometries, sensor layout and surrounding targets—you can physically model lidar, ultrasonic and camera systems. The data acquired by your sensor system is integrated into the CAD platform and considers characteristics and constraints. Simply perform complete analyses for different sensor configurations on various scenarios in about 15 minutes without the need for manual operations. Use your results to determine the expected performance of a specific sensor supplier. 

The importer makes it possible to import any native, Zemax OpticStudio® or any Speos-generated optical system into Speos, in the form of a black box. It contains the optical data necessary to perform analyses, while protecting the imported system's intellectual property (IP). The lens importer guarantees a unique continuity throughout the development of imaging systems, and the optical systems' data can be imported into camera sensors in Ansys VRXPERIENCE for interactive testing and validation.

Automatic tools help design the optical system and improve perceived quality of the image by optimizing layout and shapes, generating a rotation axis, calculating angles for multiple drivers’ sizes and automatically displaying required optical volume. Objectively qualify the image quality and compare several technical options, scoring the optical and vision performance. You can check the compliance against your own acceptance criteria and create a complete simulation of the driver’s perception.

Far infrared extension provides unique capabilities dedicated to designing and analyzing vision, as well as detection systems used in the defense industry. Simply simulate and optimize visible, near and far infrared systems for wavelength beyond 2000 nm for active and passive detection. Automatically calculate and understand the efficiency of your optical system using dedicated tools for illuminance, luminance and intensity measurements. Visualize your field of view with pixel grids projected on the 3D environment to determine detection capabilities and to process simulated camera acquisition with image processing, enabling optical designers and embedded software developers to collaborate on digital mockups.

The connection between Ansys Speos and Ansys Cloud accelerates optical simulation time to get your results up to 60X faster. The Ansys Cloud connection helps you combine your optical simulations with other Ansys simulation solutions including Ansys Mechanical, Ansys Fluent and Ansys optiSLang to deliver streamlined and comprehensive results.

Faster results mean more time for design exploration so you can find the optimal solution without compromising deadlines, innovation or quality. Preview your lighting and ergonomics simulations, reducing your time to market while saving energy and space.

It contains retro-reflecting road materials sorted by range — visible and infrared — perceived by any sensor type, whether camera, lidar or human eye. Library materials include asphalt, road markings and signs, license plates, safety vests, car paint, vegetation and metals.

The library showroom includes thousands of lights, materials and tools and is the place for creative professionals to find inspiration. Benefit from the latest innovation in light, materials and related elements with over 4,200 cutting-edge samples and items, each with a dedicated, comprehensive suite of information.

With GPU Compute, Speos delivers dramatic improvements to simulation performance (140 – 260x faster benchmarks on average) with no loss in accuracy and unprecedented performance to cost ratio.

Ansys LightField helps to facilitate the storage and sharing of pre-computed intermediate simulation results for sub-structures within an optical system. Improve simulation time and allow for black-box sharing between suppliers and their customers for improved performance and IP protection.


Featured Webinars

Live Webinar
February 23, 2022 11 AM EST / 4 PM GMT / 9:30 PM IST
What’s New with Speos
Ansys 2022 R1: Ansys Speos Update

With the newest release, Ansys 2022 R1 pushes the innovation envelope for its Ansys Speos optics products, delivering powerful new capabilities for improved accuracy, performance, and usability. This webinar spotlights all the new features available in Ansys Speos.

On Demand Webinar
GPU-Accelerated Optical Simulation Ansys Speos
GPU-Accelerated Optical Simulation with Ansys Speos

Learn how upcoming, innovative GPU-accelerated workflows in Ansys Speos will enhance your optical simulation, accelerate your development time, and allow you to remain confident about your designs.

On Demand Webinar
Ansys optiSLang, Lumerical and Speos
Optimize Your Display with Ansys optiSLang, Lumerical and Speos

In this webinar, we approach the complex task of optimizing the pixel design in displays with the help of Ansys optiSLang to orchestrate the entire simulation workflow and perform advanced multi-objective optimization.

On Demand Webinar
Speos Lens System
Optimizing Optical Design and Validation Workflows with Ansys Speos Lens System Importer

This webinar spotlights the interoperability between Zemax OpticStudio and Ansys Speos.

On Demand Webinar
Luminance matching and human vision
Relying on What You See: Luminance Matching and Human Vision

This webinar spotlights Ansys Speos, which offers a refined human eye sensor model and provides access to the human vision algorithm for luminance and immersive 360-degree observer results.

On Demand Webinar
Simulation of cars in rainy conditions
Evaluating Weather Impact on Sensor Performance by Combining Ansys Solutions

In this webinar, we discuss a physics-based modeling approach to virtually evaluate the impact of weather on sensors by coupling Ansys Fluent with Ansys Speos.    

White Papers

physics based sensor validation

Physics-Based Sensor Validation via Ansys: Driving New Automotive Innovations

Autonomous driving is revolutionizing the global automotive industry. With every new model, cars are smarter and more capable of independently responding to external signals like lane markings, highway signs, other cars and pedestrians.


Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

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