Lighting and optical analysis software "Lighting Simulator CAD"

basic information

- Screen designs and various documents are prepared in Japanese. - The settings menu items are visually displayed with easy-to-understand icons, allowing for intuitive operation and analysis. - Model data can be imported in IGES, STEP, and STL file formats. - Importing lens files is also supported (limited). - Modeling data created with the lighting simulator CAD can be exported as a mesh model in STEP format. - The light source supports reading near-field output (ray data) and allows measured distribution data to be specified for the light source. - A library of representative glass material data from major glass manufacturers is provided by default, and private glass materials can also be registered. - Geometric optical ray tracing, as well as faithful reproduction of multiple reflections and transmissions, is supported. - It covers a wide range of wavelengths, not only in the visible spectrum but also from ultraviolet to infrared. - By using optional modules, various operations and analyses can be performed through external command instructions, including automation with macro functions, post-processing, and optimization support tools.

Price information

High cost-performance perpetual license - Starting from 498,000 yen (excluding tax) - Includes one year of support - Modules available as options API module ... For those programming in C# Rhinoceros plugin module ... For Rhinoceros (3D CAD) users

Price range

P4

Delivery Time

P4

※Approximately 2 weeks after the order is received.

Applications/Examples of results

〇 Machine Vision ■ Design of line and ring lighting, etc. ■ Improvement of unevenness in diffusion light sources ■ Design of collimating lenses 〇 General Lighting ■ Examination of reflector and lens shapes ■ IES data export - lighting planning ■ Acquisition of light distribution 〇 Electrical ■ Light guide plate for power indicator lamps ■ Brightness unevenness of display panels 〇 Automotive ■ Light guide plate for shift lever area ■ Brightness unevenness of accessory display area ■ Examination of lenses for LED headlights 〇 Construction ■ Consideration of streetlight and roadlight placement ■ Creation of materials such as contour lines ■ Examination of the shape of daylighting devices

Detailed information

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  - The screen design makes extensive use of Japanese, and the settings are displayed with icons, allowing for intuitive operation. - Components such as placed light sources and optical materials are added to the "Component Display Area," and parameter editing is done in the properties area below. - The 3D palette displays the entire model, and zooming in and out, rotating, and moving can be done effortlessly with mouse operations.

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  This is an analysis model of line lighting using LED illumination for image processing. Six LEDs are arranged in a single row with a gap between them, positioned in the reverse direction of the lens. After reflecting off the reflective surface behind, the light is distributed laterally using a cylindrical lens. Looking at the resulting illuminance distribution, it is clear that it has been elongated horizontally due to the effect of the cylindrical lens.

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  Rod lenses can be applied to various purposes depending on their shape and function, but this time they are used in an optical system to achieve a uniform illuminance distribution. The LED light source has imported a ray file, and the aspheric lens has imported a lens data file. The above combination consists only of the LED and the aspheric lens, and due to the placement of the LED near the lens, the slight unevenness of the light-emitting part is reflected in the illuminance distribution. By editing the adjacent raw data exported as a CSV, it can be examined in more detail. On the other hand, the model combined with the rod lens shows that the light rays entering the rod lens from the LED undergo total internal reflection within the lens, resulting in a highly uniform distribution.

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  This is an example of an analysis model for a power indicator lamp that glows when the monitor switch is turned on. Inside the glowing green part at the top left, a transparent resin light guide, as shown in the diagram below, is used. The LED light entering the light guide propagates within it while undergoing total internal reflection and is emitted from the tip. In the lighting optical software's analysis model, there is a lit surface referred to as a "screen." In lighting analysis software, the screen is called a detector, receiving surface, evaluation surface, etc., and in this model example, it captures the light rays emitted from the tip of the light guide. The analysis involves peering into the screen from a specific direction at a distance to check the glowing state of the indicator lamp.

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  We will perform brightness analysis on three different shape models created with 3D CAD and compare the results. Using model 001 as a reference, we will conduct brightness calculations with a model that has a portion of the upper back cut out and a model with a deeper inner curve, while keeping the positions of the LED light source and screen fixed. When comparing the result distributions, although there are variations, model 001 on the far left appears to be the brightest. From the number of light rays passing through the brightness measurement aperture, it was also determined to be the most efficient quantitatively.

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  This is an illumination analysis of indoor downlights. The analysis is conducted using nine white LEDs, efficiently gathering light with reflectors and Fresnel lenses, and measuring the illuminance distribution over a 5m square area from a height of about 2m. We will consider changing the optical components to avoid unnecessarily expanding the irradiation range. The left side shows the illuminance distribution of a light designed with a half-angle of about 45 degrees, while the right side shows the illuminance distribution when the angle is widened to about 55 degrees.

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  The "Lighting Simulator CAD" has the capability to export luminous intensity calculation results to IES format files. Many lighting fixture manufacturers provide measured distribution data of their products in IES file format, which can be used in lighting calculation software such as "DIALux." By using IES files to display images of three-dimensional spaces and output illuminance values in key zones, seamless work can be done through simulation, from performance evaluation to lighting planning.