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LightTools 6.1

Photonics.com
May 2008
Synopsys Inc., Optical Solutions GroupRequest Info
 
PASADENA, Calif., May 7, 2008 -- Optical Research Associates (ORA) said the latest version of its LightTools illumination design and analysis software, LightTools 6.1, delivers a number of advanced modeling and analysis features that facilitate the design of sophisticated luminaires, LEDs, and displays.

For example, LightTools 6.1 includes a new "ray path" feature that makes it easy to identify exactly what system elements are contributing to light loss, scatter, unintentional reflections, or ghost images. This is particularly useful in the design of stray-light sensitive systems, such as microlithography steppers or astronomical instruments, the company said. LightTools also now supports accurate modeling of scattering surfaces by allowing users to apply measured BSDF (bidirectional scatter distribution function) data, both isotropic and anisotropic, to a surface.

Lighttools6.1.jpgAdditionally, the software comes with a library of BSDF data of reflective materials most commonly used in luminaire construction, including those available from companies such as Alanod and Almeco. Support for gradient index (GRIN) lenses has also been added, including radial, axial, spherical, and user-defined gradients.

Accurate modeling of LEDs with LightTools has been further extended with new ways to specify the properties of phosphors, ORA said. In particular, the mean free path (the average distance that a ray will travel in a material before striking a phosphor particle) can now be described as a constant, as a wavelength-dependent quantity, or by using Mie-scattering theory.

LightTools has also been enhanced with expanded foreign language support; in addition to the long-available Japanese, program menus and dialog boxes are now available in French, German, simplified Chinese, traditional Chinese, and Korean.

For more information, visit: www.opticalres.com; e-mail: info@opticalres.com

Optical Research Associates
3280 E. Foothill Blvd.
Pasadena, CA 91107
Phone: (626) 795-9101
Fax: (626) 795-0184



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GLOSSARY
anisotropic
Describing a substance that exhibits different properties along different axes of propagation or for different polarizations of a traveling wave.
illumination
The general term for the application of light to a subject. It should not be used in place of the specific quantity illuminance.
isotropic
That property of a material that determines that velocity of propagation within the material is the same for all directions.
light
Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
microlithography
A technique for producing micron-size structures on surfaces by using short-wavelength light or electron beams.
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
scattering
Change of the spatial distribution of a beam of radiation when it interacts with a surface or a heterogeneous medium, in which process there is no change of wavelength of the radiation.
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